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Contents

1 D1. SBS (New Version)

1.1 Sample of new RPM structure with classes of text)

1.1.1 NOTE: Content has been edited only minimally

2 1. Introduction

SBS-modified roofing membranes, often referred to as "SBS roofing" or simply as "SBS", are relative new-comers to the world of modified bituminous roofing products. SBS-modified roofing membranes comprise a substantial portion of the flexible membrane market, which has largely replaced traditional built-up roofing felts. While offering the higher performance and versatility of a flexible membrane, SBS-modified roofing membranes are also generally compatible with asphalt products, and are therefore useful for re-roofing.

SBS-modified roofing membranes are just one type of modified bituminous roofing. They are flexible membranes manufactured in rolls and are thermoplastic in nature but display variable elastomeric properties, primarily because of the modifiers blended with the bitumen. These membranes are generally manufactured using three materials: (1) modified bitumen, (2) reinforcement fibers, commonly woven as a sheet and embedded within the membrane (these fibers may be glass, polyester, or a blend of the two), and (3) a surface coating, such as stone or ceramic granules. The performance of these membranes (for example, their flexibility or ability to retain their shape under higher temperatures) may be compromised by subtle, seemingly inconsequential changes in composition.

The formulation of the bitumen is critical, particularly when its physical properties are modified by the addition of polymers. Bitumen is most commonly modified with styrene butadiene styrene (SBS) or atactic polypropylene (APP; see separate section in this Manual). The manufacturer must ensure that a suitable degree of compatibility exists between the bitumen and the polymer and that a thorough mix has been obtained. The careful selection and combination of bitumen and polymer (the type of modifier, the percentage of polymer used, etc.) determines the physical properties and long term performance of the modified bituminous “binder” (the meaning of this sentence is unclear; what exactly is the 'binder' and how is it related to the bitumen and polymer used to modify the bitumen? - isn't the "binder" the same as the polymer such as SBS or APP, or is it something else? The structure of this sentence suggests that the polymer and the binder are actually two different things). The binder provides the membrane with its waterproofing capability and may impart the following properties:

  • low temperature flexibility
  • elasticity
  • high temperature resistance to flow
  • resistance to aging

The bitumen utilized for oxidized bituminous membranes has been “blown” (clarify), similar to roofing asphalt (see Section 3.9.1). This produces a higher softening point and, therefore, a more useful temperature range. (This means what? That the membrane can be applied using a wider spectrum of temperatures? That it retains its shape under higher temperatures? If so, then let's say that, i.e. "Injecting oxygen into the bitumen results in a higher softening point, which makes installation easier and means the membrane will retain its shape under higher temperatures".)

The physical properties of the binder are further enhanced by applying it to or embedding it in a carrier or reinforcing mat, most commonly a textile such as:

  • non-woven spun-bonded polyester
  • woven polyester scrim
  • fibreglass mats
  • woven fibreglass cloth
  • combinations of the above

The type of reinforcing selected depends on the end use and desired physical properties of the finished products. The weight, quality, tension during manufacturing, and method of saturation and coating of the reinforcing are some of the factors governing the final product's performance. Some polyester modified membrane manufacturers use oxidized bitumen to saturate the reinforcement, particularly when “heavyweight” material is used.

Membranes are usually surface treated with a parting agent so they do not stick in the roll. Surfaces that will be hot asphalt applied are usually sanded while torch-applied surfaces use polyethylene or other thermofusible films (materials that can be bonded with heat). Exposed surfaces may be embedded with mineral granules (usually ceramic chips or slate flakes) or laminated with metal foil for ultra-violet protection. As an alternative on roofs with minimal slopes, a pour coat and gravel surfacing may be installed over some membranes, although this makes the quality of application difficult to inspect and may lead to problems with membrane slippage due to the weight of the cap sheet and surfacing. (Is this still done? If not, we should remove this information as it is extraneous.)

3 2. Definitions and Terminology

3.1 2.1 COMPOSITION

Bituminous and modified bituminous flexible membrane systems are composite sheet membranes which are thermoplastic in nature but display variable elastomeric properties when modified. These sheets generally consist of bitumen (oxidized or modified), reinforcement, and surfacing materials. The performance of these membranes may be compromised by subtle, seemingly inconsequential changes in composition.

The formulation of the bitumen is critical, particularly when its physical properties are modified by the addition of polymers. Bitumen is most commonly modified with styrene butadiene styrene (SBS) or atactic polypropylene (APP). The manufacturer must ensure that a suitable degree of compatibility exists between the bitumen and the polymer and that a thorough mix has been obtained. The careful selection and combination of bitumen and polymer (the type of modifier, the percentage of polymer used, etc.) determines the physical properties and long term performance of the modified bituminous “binder”. The binder provides the membrane with its waterproofing capability and may impart the following properties:

  • low temperature flexibility
  • elasticity
  • high temperature resistance to flow
  • resistance to aging

The bitumen utilized for oxidized bituminous membranes has been “blown”, similar to roofing asphalt (see Section Reference needed). This produces a higher softening point and, therefore, a more useful temperature range.

The physical properties of the binder are further enhanced by the imposition by saturation or coating onto a carrier or reinforcing mat, most commonly a textile such as:

  • non-woven spun-bonded polyester
  • woven polyester scrim
  • fibreglass mats
  • woven fibreglass cloth
  • combinations of the above

(Some polyester modified membrane manufacturers use oxidized bitumen to saturate the reinforcing, particularly when “heavyweight” reinforcing is used.). The type of reinforcing selected depends on the end use and desired physical properties of the finished products. The weight, quality, tension during manufacturer, and method of saturation and coating of the reinforcing are some of the factors governing the final product's performance.

Membranes are usually surface treated with a parting agent so they do not stick in the roll. Surfaces that will be hot asphalt applied are usually sanded while torch-applied surfaces use polyethylene or other thermofusible films. Exposed surfaces may be embedded with mineral granules (usually ceramic chips or slate flakes) or laminated with metal foil for ultra-violet protection. As an alternative on roofs with minimal slopes, a pour coat and gravel surfacing may be installed over some membranes, although this makes the quality of application difficult to inspect and may lead to problems with membrane slippage due to the weight of the cap sheet and surfacing.

The thickness of the membrane should be suited to the method of application. Torchable membranes must be thick enough to allow the underside to be melted without burning through to the reinforcing and thin enough to be manageable in winter conditions. Hot asphalt applied (mopped) membranes should be of sufficient thickness to perform adequately but should not act as a “heat sink”, lowering the temperature of the asphalt before a sufficient bond is achieved. Manufacturers often refer to membrane thickness in one of two ways. “Nominal Thickness” usually refers to the thickness including any granular finishes. As the granular surfaces do not contribute to the performance of the membrane (except as ultra violet protection and appearance), thickness measured “at the selvage edge” usually gives a more accurate indication of the physical properties of the membrane related to thickness.

3.2 2.2 PERFORMANCE

The physical properties of the membranes available today vary greatly. Each membrane manufacturer “tackles” the problems of roofing technology differently, based on individual design criteria. The design authority, in consultation with the manufacturers, must identify the properties most important for the performance of the roof system on an individual project basis.

As a precaution, RGC has accepted the following performance limitations, based on the lowest expected in-service temperatures of the membrane:

  • Temperatures warmer than -10°C (+14°F) require membranes with a minimum tensile strength of 150 N/50 mm.
  • Temperatures warmer than -18°C (0°F) up to -10°C (+14°F) require a base sheet or cap sheet with a minimum tensile strength of 294 N/50 mm (CGSB 37-GP-56M Grade 1).
  • Temperatures colder than -18°C (0°F) require a base sheet or cap sheet with a minimum tensile strength of 785 N/50 mm (CGSB 37-GP-56M Grade 2).

The design of a roof membrane system is contingent upon many factors and is not solely a function of design temperatures. Consult the membrane manufacturer for assistance with design considerations and membrane selection.


RIDGING & WRINKLING OF MODIFIED BITUMEN MEMBRANES == Reprint of CRCA Technical Bulletin, Volume 43, published October 1995:

Can roofs be “perfectly” constructed‌ Under most circumstances, the answer to that question would be ‘No’. Minor aesthetic imperfections, that have no bearing on performance, will always develop due to the materials used and the conditions under which they are installed.

Modified bitumen membranes, with their relatively thin protective surfacing (primarily ceramic granules or metal foils), can be particularly susceptible to the occurrence of these blemishes. Unlike traditional built-up roofs, these membranes are not “hidden from view” by a heavy top pour of asphalt and gravel. The reflective properties of their protective surfacing will allow many minor anomalies, such as deck or insulation unevenness, to readily telescope through to the roof surface. Over time, due to natural weathering and aging, these aesthetic imperfections will become increasingly visible. There are, however, distinct benefits to this aspect of modified bitumen membranes. Some manufacturing defects, such as poor surfacing embedment and uneven or insufficient backside coating, may be detected through an inspection of the rolls prior to installation. Serious errors in application will be apparent almost immediately allowing timely remedial action to take place.

The decision to repair a modified bitumen roof should, as with every type of roofing system, be made only after careful thought and should be based primarily on performance consequences. Open seams, fishmouths at laps, large unbonded areas of the membrane and areas where overheating has resulted in distortion to the reinforcing should be corrected as soon as possible. Trivial anomalies, on the other hand, such as minor wrinkling and ridging are to be expected as a function of the physical characteristics of these materials and their required application methods. Patching a minor blister or a small wrinkle because of visual impact alone is not justified and, in most cases, the repairs will look far worse than the blemish they were intended to correct.

As contractors have become more experienced with modified bitumen membrane installation, application techniques have evolved that have proven to reduce the occurrence and severity of these “blemishes”. These techniques, however, will not eliminate these minor anomalies entirely. In addition, it should be realized that they may significantly increase the cost of a roofing project due to added labour costs and lengthened construction schedules, with only marginal benefits for the owner and no meaningful increase in performance value.

Modified bitumen membranes have proven to provide satisfactory performance in most regions of our country. As with any product, however, they have their limitations. One should not forget that their primary purpose is to be a barrier to moisture. Although they are available in a variety of coloured surfaces and textures, their inherent physical properties make an absolute flawless appearance impossible under most circumstances. A reasonable level of expectation is required by those who specify these membranes together with a reasonable level of care and skill in their application.

4 3. RCABC (RoofStar) Guarantee Standards, Policies, Recommendations and Reference Materials for SBS Systems

<jstbutton group="Guarantee Standards">Guarantee Standards</jstbutton><jstbutton group="policies">Policies</jstbutton> <jstbutton group="rec">Recommendations</jstbutton> <jstbutton group="ref">Reference</jstbutton>

4.1 USING THE TEXT SELECTION BUTTONS

Section C contains materials that have been classified as Guarantee Standards, Policies, Recommendations or Reference (Information). Hide or reveal the classifications as desired, by clicking the buttons above. Guarantee Standards remain visible at all times, in black, and cannot be hidden.


4.2 3.1 MATERIALS

Materials to be covered by the Guarantee Program must be acceptable to RGC. A listing is published in the RCABC Roofing Practices Manual, Section (Reference needed).

All materials must be protected from weather by properly stacking above ground or roof surface and in factory packaging or other adequate covering until applied. All installed roofing materials that are susceptible to moisture damage must be made watertight by the end of each work day.

All roofing components must be supplied or accepted by the membrane manufacturer. See manufacturer component listings. (Sections reference here)

4.2.1 SUGGESTED REVISION:

Materials to be covered by the Guarantee Program must be acceptable to RGC. A listing is published in the RCABC Roofing Practices Manual, Section C.

Materials covered by the Guarantee Program

  • that are on site but uninstalled must be protected from weather by properly stacking above ground or roof surface and in factory packaging or other adequate covering until applied.
  • that are installed, but susceptible to moisture damage, must be made watertight by the end of each work day.
  • must be supplied or accepted by the membrane manufacturer.

4.3 3.2 GENERAL

4.3.1 3.2.1 Application

<jstdiv group="ref">As with all flexible membranes, the quality of the installation is critical to the performance of bituminous and modified bituminous membranes. Although some of the application techniques for these membranes can be similar to those employed in built-up roofing, and the materials can be “familiar”, the differences are critical.</jstdiv> <jstdiv group="rec">It is important that the specifications, details, and installation techniques all conform to the membrane manufacturer's requirements.</jstdiv>

<jstdiv group="ref">One of the major concerns when applying these membranes with hot asphalt is to ensure the asphalt remains hot enough to fuse with the binder of the membrane.</jstdiv> The asphalt temperature must conform to the membrane manufacturer's minimum application temperature and minimum +205°C (+400°F) as required by RGC Guarantee Standards. Asphalt should not be mopped more than 1 m (3') preceding the roll as it has been demonstrated that the temperature of mopped asphalt drops sharply once mopped out (see Section 3.9.1.2). <jstdiv group="rec">In addition to asphalt temperature, particular attention should be paid to slope limitations, fastening requirements, type of asphalt, the amount of asphalt used, and membrane flashing requirements when using hot asphalt.</jstdiv> <jstdiv group="ref">Some manufacturers may require “torched” membrane flashings to ensure a proper bond and prevent problems with slippage or asphalt running down the vertical and collecting at the cant. Slippage can also be a problem when an excessive amount of asphalt is used. Only enough asphalt to meet the adhesive requirements is needed. The mopping asphalt has a lower softening point than the bitumen in the membrane and may result in asphalt running and slippage problems.</jstdiv>

<jstdiv group="rec">The major concern when installing “torch-on” membranes is an obvious one: SAFETY. This is discussed in detail in Section 5.0.1 Safety Precautions - Torching. In addition to safety, it is essential that the membrane be fully and evenly bonded to the substrate. As the roll is installed, the roofer must ensure the full width of the roll is melted and the preceding roll's side lap is preheated. A small “wave” or “bead” of melted bitumen in front of the roll usually indicates sufficient heat. Special attention to seams is required.</jstdiv>

<jstdiv group="ref">The polyester fabric used as reinforcing in many thermofusible (“torch on”) membranes is subject to dimensional changes at high temperatures. Care must be exercised by the applicator not to over-torch or over-heat membranes. Membranes must be designed and manufactured specifically for torch applications.</jstdiv><jstdiv group="rec">It is recommended that the cap sheet installation immediately follow base sheet installation in all cases. However, when it may be necessary to delay the installation of the cap sheet due to weather, project scheduling or the like, then the following criteria must be considered:

  • ANY delay in the installation of a cap sheet will result in the requirement for a special inspection and thorough cleaning of the base sheet. The inspection is for mechanical damage from traffic or trades and cleaning is necessary to ensure good adhesion; this must be done to the satisfaction of the roofing contractor.
  • Sanded base sheets should have a thin squeegee glaze coat of asphalt applied immediately after application of base sheet if any delay for cap installation is anticipated.
  • Base sheets which are either sanded, glaze coated or thermofusible can be exposed for up to six months. It must be recognized that an exposed base sheet is vulnerable to mechanical damage and construction dirt. The base sheet should be well protected by carefully placed and maintained protection panels (plywood for example). This protection would be supplied, installed and removed by someone other than the roofing contractor.

Consult manufacturer(s) for specific construction details and specifications.</jstdiv>

4.3.1.1 3.2.1.1 APPLICATION CAUTION
4.3.1.1.1 MODIFIED BITUMEN MEMBRANES IN HOT MOPPED ASPHALT
  1. The design authority should recognize that the appearance of wrinkling and ridging in modified bitumen cap sheets applied in hot asphalt may be generic to certain manufacturers of this system, and particularly when attempted in cooler temperatures. Although some manufacturers' literature suggests application may take place in temperatures as low as -25°C (-13°F), there are many subsequent limitations, the variables of which may result occasionally in severe wrinkling or ridging of the cap sheet as well as potentially poor adhesion.# RGC recommends that, in order to minimize the potential for wrinkling and ridging, the use of mopped cap sheets not be considered or specified when ambient temperatures (including wind chill) may go below +5°C (+41°F).
  2. Many factors affect the behaviour of the finished prefabricated sheets including:
    • The quality of the binder (waterproofing agent).
    • The choice of carrier including suppliers of fibreglass, polyester, or a combination of the two.
    • Saturation of the carrier.
    • Engineering of the sheet (composition and placement of the components within the sheet).
    • Quality control of the manufacturer.
    • Expertise of the manufacturer's personnel (including field representation).
    • Recommendations as to what is required for a completed system and the recommended application procedure.
    • Installation in the field by a competent contractor.
    • The designer's role in choosing the product(s) which satisfy each previous item described.
  3. The wrinkles or ridges are usually considered an aesthetic problem only, but may occasionally result in fishmouthing and intermittent bonding of the cap sheet. Both of these deficiencies affect the performance of the membrane.
  4. RGC recommends the use of torch applied thermofusible cap sheets in 2-ply modified bitumen systems in all cases, but particularly if roofing must be carried out in cool or cold weather. Appropriate safety precautions regarding torching must be addressed.
  5. Occasionally some mopped systems, particularly with heavy cap sheets, have exhibited a propensity for membrane slippage, frequently on insulated systems where there is a combination of slope, heavy inter-ply mopping and lack of mechanical fastening (back nailing) of sheets. (See Section 2.1.3, C5.3 for mechanical fastening requirements and slope limitations).
  6. It is also common for mopped systems to exhibit some asphalt bleed-out at the seams. Minimal or reasonable bleed-out is to be expected and is an aesthetic problem which may be minimized by the embedment of matching granules. Bleed-out which oxidizes and alligators with time does not normally affect the waterproofing efficiency of the roof.

<jstbutton group="Guarantee Standards">Guarantee Standards</jstbutton><jstbutton group="policies">Policies</jstbutton> <jstbutton group="rec">Recommendations</jstbutton> <jstbutton group="ref">Reference</jstbutton>

4.3.1.1.2 APP MODIFIED BITUMEN MEMBRANES
  1. Cold Weather Application:
    Designers and contractors should recognize that APP modified bitumen membranes can be extremely difficult to work with in colder temperatures, and that even attempting to unroll the material in very cold temperatures may result in cracking of the sheet or other problems.

    Some manufacturers make different grades of material for application at different times of the year. Most manufacturers recommend an application temperature lower limit of approximately 5°C (40°F). DO NOT ATTEMPT to install APP modified bitumen membranes below these recommended temperatures.

4.3.2 3.2.2 Roof Slope

On all reroofs without positive slope to drain and all protected or modified protected membrane roofing, only non-organic felts or membranes may be used.

Positive slope to drain is an absolute requirement for organic felts. All new construction roofs must have positive slope to drain. Definition of roof slope is provided in Section (reference here). Where required, crickets and saddles should be provided to assist drainage.

<jstdiv group="policies">For single-ply roof systems, a minimum slope 1:15 (3/4" in 12")is required. Any roof areas less than 1:15 (3/4" in 12") require 2 ply membrane assemblies.</jstdiv>

<jstdiv group="rec">A minimum slope of 1:50 (l/4" in 12") is strongly recommended, and should provide positive slope to drain [required for a Five (5) or Ten (10) year RoofStar Guarantee for new construction and for organic felt membrane systems when re-reroofing]. Positive slope to drain is attained when no standing water remains on the deck within a reasonable amount of time after rainfall stops during days with conditions that permit evaporation.

Slope can be provided by sloping the deck, or using tapered insulation boards of insulating fill (insulating fill is rarely used in B.C.). A minimum slope of 1:50 (1/4” in 12”) is strongly recommended. The exception is often drain wells that are designed to collect water and provide a flat surface for the installation of roof drains. Therefore standing water may remain in drain wells for a longer period after a rainfall stops.

Crickets and saddles should be employed between drains where the design slope of the roof is less than 1:50 (1/4" in 12"), where the roof deck is uneven and ponding may occur, or simply to assist the movement of water to drains.

In re-roof applications, when utilizing 2 ply modified asphalt membranes, there is no requirement for slope to drain. However, slope is strongly recommended.</jstdiv>

4.3.2.1 SUGGESTED REVISION

All newly constructed roofs must have positive slope to drain.

<jstdiv group="rec">In re-roof applications, when utilizing 2 ply modified asphalt membranes, there is no requirement for slope to drain. However, a minimum slope of 1:50 (l/4" in 12") is strongly recommended for any low-slope roof, and should provide positive slope to drains.</jstdiv>

For single-ply roof systems, a minimum slope 1:15 (3/4" in 12") is required. Any roof areas sloped less than 1:15 (3/4" in 12") require 2 ply membrane assemblies.

<jstdiv group="ref">Positive slope in this Manual means a slope that drains water sufficiently so that no standing water remains on the deck within a reasonable amount of time after rainfall stops, during days with conditions that permit evaporation. A roof is said to have positive slope even if standing water remains in drain wells for a longer period after a rainfall stops; drain wells are designed to collect water and provide a flat surface for the installation of roof drains.

Slope can be provided by sloping the deck, or using tapered insulation boards of insulating fill (insulating fill is rarely used in B.C.).</jstdiv>

<jstdiv group="rec">Crickets and saddles should be employed between drains where the design slope of the roof is less than 1:50 (1/4" in 12"), where the roof deck is uneven and ponding may occur, or simply to assist the movement of water to drains.</jstdiv>

4.3.3 3.2.3 Re-Roofing

<jstdiv group="policies">Re-roofing over existing membrane is only permitted in specific circumstances and only when approved in writing by RGC and the membrane manufacturer.</jstdiv>

4.3.4 3.2.4 Tying Into Existing Roofing

Where a new roof is tied-in to an existing roof, the two areas must be isolated and separated by a curb joint properly attached to the structure and properly flashed. If job conditions do not allow for a curb joint, written permission from RGC to eliminate curb joints must be obtained and a positive water cut-off must be installed to the deck to isolate the existing roof from the new roof.

4.3.5 3.2.5 Wall Sheathing: Perimeter Requirements (EDITED for format and content)

<jstdiv group="policies">Regardless of the substrate to which roof membranes are applied, installation of roof membrane to the surface must be governed by the membrane manufacturer's requirements for that substrate.</jstdiv>

4.3.5.1 GYPSUM SUBSTRATES

Gypsum boards on vertical surfaces must be RGC Accepted overlay boards with water resistant properties.

<jstdiv group="ref">On steel framed walls, it is acceptable to use gypsum overlay boards accepted for the Guarantee Program, provided the gypsum board has a minimum thickness of 12mm (1/2") or fibre-mat reinforced cement boards with a minimum thickness of 9.5 mm (3/8") that conform to ASTM C1325-04.</jstdiv>

<jstdiv group="policies"></jstdiv>

4.3.5.2 DECK SUPPORTED BY WALL

In combustible construction, or where permitted by the Building Code in non-combustible construction, all concrete or masonry parapets or walls which do not provide a smooth, clean, dry surface for membrane adhesion or are to be applied with oxidized asphalt as the adhesive must be sheathed with a minimum 15.9 mm (5/8") treated plywood, or 9.5 mm (3/8") reinforced cement board that conforms to ASTM C1325-04 mechanically attached to the wall. The plywood is to extend either a minimum of 200 mm (8") above membrane surfacing, to the bottom of the reglet, or, if required by the type of membrane, to the full height of the parapet.

4.3.5.3 DECK NOT SUPPORTED BY WALL

Where permitted by the Building Code, all concrete or masonry parapets or walls to which roofing is to be applied must be sheathed with minimum 15.9 mm (5/8") plywood or 9.5 mm (3/8") reinforced cement board that conforms to ASTM C1325-04 solidly attached to the roof deck with adequately treated blocking. Compressible insulation is to be installed between the sheathing and the wall. Coping and / or counter flashing is to be installed. See construction details Sections 10.3.1 and 10.3.3. The plywood is to extend either a minimum of 200 mm (8") above membrane surfacing or, if required by the type of membrane, to the full height of the parapet or wall. This item is supplied and installed by others unless specified otherwise.

4.3.6 3.2.6 Other

Fully adhering modified bituminous membranes directly to wood decks is not permitted.

<jstbutton group="Guarantee Standards">Guarantee Standards</jstbutton><jstbutton group="policies">Policies</jstbutton> <jstbutton group="rec">Recommendations</jstbutton> <jstbutton group="ref">Reference</jstbutton>

4.4 3.3 ROOF DECKS

4.4.1 3.3.1 Concrete Decks (EDITED for format and content)

  • Concrete decks, curbs and equipment pads must be clean, dry, and smooth prior to commencement of roofing.
  • Poured concrete or lightweight concrete decks are not to be roofed for a minimum of 28 days after pouring unless expressly instructed in writing by the Project Structural Engineer.
  • All concrete decks to receive adhered asphaltic roofing shall be primed.
  • A vented base sheet is required under all asphalt-adhered (adhesive, mopped or torched) roofing membranes that are adhered directly to concrete decks unless insulation is installed directly above or over the membrane.

4.4.2 3.3.2 Wood Decks

All wood decks shall be properly fastened to B.C.Building Code requirements. With the exception of standard insulated roof systems, all knots or cracks shall be covered with metal prior to acceptance of deck surface.This work is to be done by others. <jstdiv group="policies">Non-veneer (O.S.B. or wafer board) panels are acceptable sheathing for decks with low-slope roofing applications, provided the roofing membrane is not fully adhered directly to the panels.</jstdiv> The minimum plywood or non-veneer (O.S.B or wafer board) deck thickness for low-slope roofing (i.e., membrane roofing) shall be a minimum 12.7 mm (1/2")and as indicated in the applicable Building Code.

An RGC approved separation sheet, minimum#40 asphalt coated fibre glass base sheet conforming to CAN/ CSA A123.16 - M88 (R1996), Type II or manufacturer’s accepted base sheet of equal or greater weight and reinforcement, or RGC accepted rigid insulation / overlay board mechanically attached or semi-adhered membrane (spot or strips) is required over non-veneer panels before fully adhered roofing membrane is applied.

<jstdiv group="policies">Direct torch (open flame) membrane applications to wood decks and wood surfaces is NOT permitted. For further development of this policy, refer to SBS Application & Safety: Best Practices.</jstdiv>

Differential edge movements or deflection in excess of1/360 of the span in plywood or non-veneer decks in low slope roofing must be prevented by:

  • solid blocking under non-supported edges, and /or
  • use of tongue-and-groove plywood with non-grooved edges supported by joists or solid blocking, and / or
  • when rigid insulation is over the deck, properly sized and installed H-clips must be used on the unsupported edges.

4.4.3 3.3.3 Separation Layers

Pre-cast panels, post-stressed beams, or “T” and cavity decks shall have a separation layer such as fibre board, gypsum board, plywood, proprietary overlay board etc. applied over the deck prior to the application of the roof membrane. Where a difference exists in the levels of adjacent surfaces, the general contractor or others shall install grouting. This grouting shall be feathered on the lower surface a minimum distance of twelve times the amount of the vertical differential.

4.4.4 3.3.4 Electrical Conduit

Conduit, EMT, cable and/or piping applied on the top of roof deck surfaces shall not be acceptable on new construction projects. <jstdiv group="policies">If conduit is present on decks in re-roofing projects, the deck must be made smooth and even to the satisfaction of the accepted roof inspection firm. The upper layer of insulation must cover the conduit, EMT, able and/or piping.</jstdiv>

4.5 3.4 VAPOUR RETARDERS

<jstdiv group="policies">The decision to use and the selection of, a vapour retarder is the responsibility of the design authority. Neither RGC nor the roofing contractor will accept any responsibility for damage to, or failure of, the roof system caused by the use or absence of a vapour retarder.</jstdiv>

4.6 3.5 INSULATION

4.6.1 3.5.1 General

Only RGC Accepted insulations, specifically listed by membrane manufacturers in the RPM as acceptable for use with their modified bituminous loose laid, or mechanically attached base sheets, may be used without an overlay board in the RGC Guarantee Program.

4.6.2 3.5.2 Layering

Multi Layering: All square edge flat format insulation boards greater than 67.5mm (2.7”) in thickness shall be installed in multiple layers. Multi layering of plastic foam insulation is required for all adhered, mechanically attached, and ballasted low slope roof assemblies. In addition, all slope format plastic foam insulation boards greater than 150mm (6”) in thickness shall be installed in multiple staggered layers or alternatively, be installed under two (2)offset/staggered layers of RGC accepted insulation overlay boards.

Insulation board joints are to be offset or staggered 300 mm (12") from adjacent layers and rows.

<jstdiv group="policies">A minus offset tolerance of 50 mm (2") maximum will be permitted to compensate for variance in manufactured tolerance of differing insulation board widths and lengths. The exception is sloped insulation boards that are generally installed soldiered fashion to adjacent rows; and the first layer of overlay board over heat sensitive insulation to facilitate joint taping.</jstdiv>

4.6.3 3.5.3 Nailing Strips

Required on Slopes exceeding 1:12 [1" in 12"]) Where the total insulation thickness on nailable decks exceeds 25 mm (1"), nailing strips shall be mandatory on all insulated exposed membrane roofs utilizing bitumen as an adhesive and / or waterproofing medium (BUR, single or multi-ply modified bitumen or oxidized asphalt sheet systems (mop or torch applied base sheets,non-conventional felts, etc.) and will be supplied and installed by the roofing contractor. These nailers should be nominal 89 mm (3- 1/2") wide and of a thickness equal to that of the primary insulation. Spacing of these nailers will not exceed four feet for horizontal application and two feet for vertical application.Fasteners for attachment of wood nailers shall be two minimum #12 non-corrosive exterior screws spaced a maximum of 400mm (16”) o/c. Attachment screws shall be embedded into support media a minimum of 37.7mm (1.5”) at all nailing strip fastening points. Nailers are to be covered by one layer of accepted overlay board.Fasteners used for attaching membranes to nailing strips(back nailing) shall be membrane manufacturer’s approved screws with plates or nails with a minimum 25 mm(1") head size. Spacing of fasteners or nails on nailing strips shall not exceed 300 mm (12") o/c for horizontal applications and 600 mm (24") o/c for vertical applications.Where deck nailing strips are required to secure roofing nailing or insulation nailing strips (e.g. in concrete decks), deck nailing strips shall be supplied and installed by others.

<jstdiv group="policies">Consult the membrane manufacturer's published data for slope limitations.</jstdiv>

<jstdiv group="ref">Nailing strips are not required for use on RGC accepted in seam mechanically-fastened bituminous or non-bituminous flexible membrane systems. Heat welded or self-adhered SBS modified bituminous systems may be used without nailing strips provided RGC accepted in seam fastener patterns are used throughout all base sheet seams (minimum 24" o/c) and head laps (minimum of 3 fasteners). All layers of insulation are recommended be additionally secured with polyurethane foam adhesive.</jstdiv>

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4.6.4 3.5.4 Mechanical Fastening

When conventionally adhered roof assemblies are installed, (adhered, hot asphalt mopped, torched, etc.), all insulation must be mechanically fastened to all nailable decks including steel, with exceptions as per (reference here). <jstdiv group="ref">The upper layer or overlay in a multiple-layer insulation application does not require mechanical fastening.</jstdiv> The exception is for slopes exceeding 1:12 (1" in 12") or steeper - in those cases, the upper layer must be fastened.

When using multiple layers of plastic foam insulation the layers shall be mechanically fastened, whenever possible, as if they are a single layer. Alternately, when the use of mechanical fasteners is not feasible, or multiple layered assemblies require mechanical fastening of the base layer only, or decks are constructed of non-nailable materials (concrete,) polyurethane foam adhesives may be utilized to adhere insulation layers to one another, to other insulations, or substrates. Only polyurethane foam adhesives that are specifically listed as acceptable by the insulation manufacturer may be used. Extruded polystyrene insulation must have planed faces (removal of smooth surface) when adhered with polyurethane foam adhesive.

<jstdiv group="ref">The roof area is divided into three areas (zones). The perimeter area is defined as 10% of the building width or 40% of the building height, whichever is less. In no case will perimeter area be less than 2.0 m (7'). The field area is defined as the remaining area after the perimeter is calculated. When the roof height is:• greater than 18 m (60’) and low-slope (slope is 2:12 or less) or• less than 18 m (60’) and pitched (slope is greater than 2:12), Perimeter fastening along the entire eave will be enhanced to corner requirements. The corner area is defined by the perimeter in both directions at the corners.</jstdiv> <jstdiv group="policies">In no case will the corner area be less than 2.0 m x 2.0 m (7’ x7’).</jstdiv>

<jstdiv group="ref">For corner enhancement of roofs in high wind locations (higher than 100 mph) or for roofs above 60’ refer to Section (reference here).

Mechanically attached insulated membrane systems may be fastened according to manufacturer’s tested specifications complying with CSA A123.21-10 or a FM 1-90 assembly wind rating and when accepted by RGC and conforming to A4.6. Factory Mutual adhered assemblies require the initial layer to be mechanically fastened over a steel deck.

The upper layer or overlay in a multiple-layer insulation application does not require mechanical fastening.</jstdiv>

If mechanical fastening to concrete decking is required proprietary concrete fasteners and plates must be used.

Minimum fasteners using Screws and Plastic or Steel Stress Plates: (see Section 3.8.5.2)

Insulation Board SizeFieldPerimeterCorner
600 mm x 1200 mm (2'x4')445
600 mm x 2400 mm (2'x8')568
900 mm x 1200 mm (3'x4')467
1200 mm x 1200 mm (4'x4')568
1200 mm x 1800 mm (4'x6')6812
1200 mm x 2400 mm (4'x8')81215

Minimum fasteners using Accepted Nails (Wood Decks Only): (see Section 3.8.5.2)

Insulation Board SizeFieldPerimeterCorner
600 mm x 1200 mm (2'x4')556
600 mm x 2400 mm (2'x8')81012
900 mm x 1200 mm (3'x4')6810
1200 mm x 1200 mm (4'x4')6810
1200 mm x 1800 mm (4'x6')81014
1200 mm x 2400 mm (4'x8')121618

Acceptable nail types: Shank-and-head or head-plate nails with minimum 25 mm (1")nominal head size. Head-plate nails with solidly attached plate to ensure plate cannot slide down on shank.

<jstdiv group="ref">Cavity deck or T Deck may be defined as either nailable or non-nailable, depending on profile and deflection.</jstdiv>

Nailing is only permitted on wood decks and where insulation thickness does not exceed 50 mm (2"). Nails with a minimum 25 mm (1") head size or greater are required for insulation and overlay boards fastened to wood decks. Nails to be placed a maximum 600 mm (24") o/c in each direction and be of sufficient length to penetrate the underlying sheathing a minimum of 20 mm (3/4") or in the case of plywood, completely through the sheathing.

When insulation and or cover boards are installed under mechanically fastened membrane systems the membrane manufacturer’s tested and approved fastener layout patterns shall be followed. In addition, the minimum number of fasteners with plates for insulation and or cover boards, under mechanically fastened membranes, shall be six (6) fasteners for 1200mm x 2400mm (4ft. x 8ft,) board sizes and four (4) fasteners for all other smaller board sizes.

For all adhered asphaltic membranes, ie: hot asphalt, torch welded, or cold adhesive applied roof assemblies: Heat Sensitive Insulation: On all heat sensitive insulations (polystyrene; extruded and expanded), an overlay consisting of two layers of acceptable cover board is to be installed when using hot asphalt as an adhesive, or where the cover board is less than 1/2" in thickness on torch applied assemblies.

Two layer system: Fasten the first layer of cover board, offsetting the joints from those of the insulation. Tape the joints before applying the second layer, offsetting the joints from both layers below. Alternatively, all layers of cover board and insulation may be fastened as a group.

Single layer system: Flame protection under or over the cover board is required. Seal over all board joints and wall transitions with membrane manufacturer's approved self-adhered membrane tape. Alternatively, a full layer of minimum No. 25 asphalt coated fiberglass base sheet conforming to CAN/CSA-A123.16-04 (R2009), Type II or No. 30 non-perforated felt conforming to CSA A123.3-05 (R2010) may be used under the cover board.

Composite board insulations with factory applied base sheets that utilize self-adhering seams for flame protection, are mechanically attached over decks listed by the membrane manufacturer, and specifically accepted by RGC, may be installed as a single layer overlay board over heat sensitive insulations.

Minimum Fasteners for Overlay Boards are: 1200 mm x 2400 mm (4' x 8')

Using: Field Perimeter Corner
Screws and Plastic or Steel Stress Plates 8 12 15
Accepted Nails (Wood Deck Only) 12 16 18
Fastener layout patterns and other board dimensions (See Section 3.8.5.2)

Heat Insensitive Insulation Only In the case of heat insensitive insulations, one layer of acceptable overlay board is required. For hot asphalt applied roof assemblies the insulation is to be mechanically fastened before an acceptable overlay board is fully mopped to the insulation. Alternatively, manufacturers proprietary insulation adhesives may be used to adhere accepted overlay boards to insulations. When hot asphalt or adhesives are not used in a roof assembly accepted insulation and overlay board(s) may, as a group, be mechanically fastened directly to nailable decks including steel.

4.6.5 3.5.5 Application to Steel Decks

When installing insulation or thermal barriers to steel decks, all edges of the first layer of insulation or thermal barrier shall be fully or intermittently supported by the deck. Mechanical fasteners must penetrate steel decks a minimum of 20mm (3/4") and must be located in the top flutes only. The minimum thickness of insulation directly over fluted steel decks shall be a minimum of one-half the nominal flute width. Additionally, the minimum allowable thickness of expanded polystyrene or unfaced glass fibre insulation shall be 38 mm (1-1/2"), and the minimum thickness for extruded polystyrene, faced glass fibre, faced polyisocyanurate, etc. shall be 25 mm (1").(For loose laid ballasted systems, see Section reference needed

4.6.6 3.5.6 Adhering Insulation

When foam plastic insulation is adhered (with hot asphalt or compatible adhesive) in a roof assembly, the insulation board size shall be a maximum 1200 mm (4') in any direction.

Only RGC accepted overlay boards may be installed by the back mop and flop application method over heat sensitive foam plastic insulation boards. Heat insensitive insulation boards, (e.g. Polyisocyanurate) are not permitted to be installed with this method.

Asphalt or paraffin-impregnated coated fibreboard roof insulation, used as an insulation overlay board must be asphalt-coated on the top and bottom surface (minimum coated two-sides) when adhered (in a roof assembly) with hot asphalt or asphaltic based adhesive.

Proprietary adhesive applied insulation/overlay board membrane systems accepted and installed in the RoofStar Guarantee Program shall conform to the CSA A123.21-10 Standard test method for the dynamic wind uplift resistance of adhesive attached membrane roofing systems and/or the Factory Mutual I-90 Listing for adhesive attached assemblies.

The roof system must be as per the complete tested assembly and a calculation for the building wind load requirements using the Wind-RCI calculator or RoofNav as applicable be submitted with project documents.

<jstdiv group="ref">Refer to C5.c for notes on wind uplift resistance - fastener patterns and Factory Mutual requirements.</jstdiv>

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4.6.7 Polyisocyanurate Insulation

Only polyisocyanurate insulation with non-organic facers(e.g. fibreglass) are acceptable for use in the RGC guarantee program. In addition, manufacturers’ product identification labels are required for all Polyisocyanurate insulation packaging and the date of manufacture must be provided on all product labels.

4.7 3.6 INSULATION COVERBOARD

4.7.1 3.6.1 General

RGC accepted insulation overlay boards shall be installed over all plastic foam insulations (EPS, XEPS, Polyisocyanurate) on all adhered low slope roofing systems. When heat sensitive insulations (EPS,XEPS) are used with heat welded membrane seams an accepted overlay board must be installed. Fibreboard shall not be used with flame welded seams.

4.7.2 3.6.2 Layering

Insulation and overlay board joints are to be offset/staggered 300 mm (12") from adjacent layers and rows. The uppermost layer of [insulation or] overlay board directly below membranes shall have joints that are offset/staggered from adjacent layers and rows.

4.7.3 3.6.3 Mechanical Fastening

Possible Wording: Refer to C5.c in this Manual for RoofStar Guarantee requirements for the application of mechanical fasteners, as they pertain to both insulation and overlay board applications.

<jstdiv group="ref">The upper layer or overlay in a multiple-layer insulation application does not require mechanical fastening.</jstdiv>

4.7.4 3.6.4 Using Adhesives

For adhered asphaltic membranes overlay board is required over all insulations.

NOTE: Is the following excerpt relevant to the SBS Section?

Adhered Systems For all adhered asphaltic membranes, ie: hot asphalt, torch welded, or cold adhesive applied roof assemblies: Heat Sensitive Insulation: On all heat sensitive insulations (polystyrene, extruded, and expanded), an overlay consisting of two layers of acceptable cover board is to be used when using hot asphalt as an adhesive, or where the cover board is less than 1/2" in thickness on torch applied assemblies. Two layer system: Back mop and flop first layer of overlay board for hot asphalt adhered systems, or use manufacturers accepted proprietary adhesives per published directions, offsetting the joints from those of the insulation. Then tape joints and install second layer offsetting the joints from those of the insulation. Then tape joints and install second layer offsetting the joints from those of the layer below. Alternatively, the membrane manufacturer's proprietary insulation adhesives may be used to adhere accepted cover boards and insulations. Single layer system: Flame protection over the cover board is required. Install the insulation and cover board with the proprietary accepted adhesive. Seal over all cover board joints and wall transitions with the membrane manufacturer's proprietary self-adhered membrane tape.

Asphalt core overlay boards, [minimum thickness 4.5 mm (3/16") nominal] or insulation and insulation overlay boards specifically designed for torch applications, that are accepted by RGC, mechanically attached with nails with a minimum 25 mm (1") nominal head size placed a minimum of one nail per 0.093 m² (1 sq. ft.) or plates and screws placed a minimum of 0.186 m² (2 sq. ft.). Seal all board joints and wall transitions with membrane manufacturer’s approved self-adhered membrane or tapes.

4.7.5 3.6.5 Joint Taping

Acceptable materials for taping joints, of hot asphalt, and cold adhesive applied roof assemblies on overlay board, insulation, gypsum board, and primed plywood are minimum 150 mm (6") wide No.15 felt, 150 mm (6") wide Fibreglass roof tape, or 150 mm (6") wide sheathing (membrane breather-type to CAN / CGSB 51.32-M77). The only acceptable methods of hot asphalt installation are by back coating with asphalt, or laying with a back-coating machine expressly intended for the purpose.

For taping joints of asphalt core overlay boards, without poly film surfaces, manufacturers purpose made self-adhered modified bituminous tapes are acceptable for use with hot asphalt, torch welded and cold adhesive applied roof assemblies.

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4.8 3.7 MEMBRANES

4.8.1 3.7.1 General

While the roof is being applied, all membrane openings at eaves, walls, vents, etc. must be sealed to prevent moisture from entering roofing or between plies of stripping.

Cold Weather Membrane Applications In cold weather regions, membrane selection must conform to the membrane manufacturer’s recommendations for January in service design temperature.

Membrane Surfacing and Slope Limitations (Modified Bitumen Membranes): Only factory cap sheets are to be used on slopes exceeding 1:24 (1/2" in 12"). Manufacturers published instructions as to application methods, materials, and slope limitations are to be followed. On slopes less than 1:24 (1/2" in 12"), double pour, modified double pour or alternate modified double pour and gravel surfacing may be used (see Guarantee Standards reference needed).

<jstdiv group="ref">NOTE: Fully nailed base sheet and torched cap sheet is considered a single-ply for Guarantee purposes.</jstdiv>

Both the base sheet and cap sheet in 2-Ply modified bituminous systems must be of modified bitumen materials using the same polymer. For example, if the cap sheet is an SBS modified bitumen sheet, then the base sheet must be an SBS modified bitumen sheet. Oxidized asphalt sheets will be considered as underlay only and must not be counted as one of two plies.

Both the base sheet and cap sheet must be installed in a parallel direction (not at 90° to each other). Manufacturer's printed instructions for overlaps are to be followed.

For the application of 2-ply ungranulated membranes; both the cap sheet and base sheet are to be applied separately. Shingle fashion application (i.e., 50% lap) is not acceptable except where membrane back nailing is required.

All modified bitumen base stripping terminating on vertical surfaces must be mechanically fastened.

Single Ply Modified Bitumen Membrane Systems

• Membranes used for a single ply modified bituminous membrane system adhered or mechanically fastened shall be a minimum thickness of 3.5 mm on the selvage edge, with a minimum 150 g / meters squared polyester or equal strength polyester-fibreglass combination reinforcement. . • 2 Torch applied membrane applications require a deck separation sheet of a minimum No. 40 asphalt coated glass base sheet or torchable overlay board. Direct torch application to wood surfaces is not permitted. • At roof slope transitions locations where slopes of less than 1:15 (3/4" in 12") meet steeper slopes a two ply membrane assembly must be carried 900 mm (36") beyond the lower sloped roof transition point.

Membrane Lap Preparation for Modified Bitumen Roof Systems • Granules are to be embedded prior to forming laps on all torch applied modified bituminous cap sheets. • Membrane end lap corners must be cut on a bias (clipped or trimmed on an angle) prior to forming laps on all torch applied modified bituminous membrane roof systems.

4.8.2 3.7.2 Mechanically Attached

On all adhered flexible membrane roof slopes that exceed 1:24 (1/2" in 12"), the manufacturer's published instructions are to be followed regarding mechanical fastening and/or back nailing of sheets, and the size and direction of sheet application to the direction of roof slope.

All mechanically fastened flexible membrane systems installed under RoofStar guarantee shall conform to the CSA A123.21-10 Standard test method for the dynamic wind uplift resistance of mechanically attached membrane roofing systems and/or the Factory Mutual I-90 Listing for mechanically attached assemblies.

Mechanically Attached Base Sheet – Cover wood surfaces with a minimum No. 40 asphalt coated fibreglass base sheet conforming to CAN / CSA – A123.16 – M88 (R1996), Type II or manufacturers’ accepted base sheets of equal or greater weight and reinforcement. Attachment of base sheets shall be a minimum of one nail, with a minimum 25mm (1") nominal head size, per 0.093 m2 (1 sq. ft.), or one plate and screw per 0.186 m2 (2 sq. ft). Lap base sheet end laps minimum 150 mm (6"), mechanically fix laps at 100 mm (4") o/c and seal all corner details with membrane manufacturers’ approved self adhered SBS membrane or tape. Wood surfaces must be “dry mop” dry, no pooling or standing water permitted. Metal base flashing is required on all vertical surfaces, walls, curbs, etc., that are 200 mm (8") or greater in height above the finished roof surface, when the mechanically attached base sheet method is used.

4.8.3 3.7.3 Self-Adhesive

Base and cap sheets of all self-adhered and cold adhesive applied roof systems must be installed in the same work day, phased installation of base and cap sheet membranes is not permitted.

Both the base sheet and cap sheet membrane must be competed in the same work day on all modified bituminous self-adhered systems. Specifications and manufacturers written application instructions must be strictly followed. Phased installation of membranes is not permitted.

Self-adhesive membranes must only be installed when ambient temperature meets or exceeds the manufacturer’s printed product installation temperatures. All self-adhesive field membranes must be fully rolled with a manufacturer’s accepted roller that is a minimum 34.2 kg (75 lbs.) or greater and provides an evenly dispersed weight. All flashing (stripping) membrane must be hand rolled with a membrane manufacturer’s accepted roller.

4.8.4 3.7.4 Cold-applied (Adhered)

As stated earlier, Base and cap sheets of all self-adhered and cold adhesive applied roof systems must be installed in the same work day, phased installation of base and cap sheet membranes is not permitted.

Both the base sheet and cap sheet membrane must be completed in the same work day on all adhesive applied modified bituminous systems. Specifications and manufacturers’ written application instructions must be strictly followed. Phased installation of membranes is not permitted.

<jstdiv group="policies">RGC accepts self-adhered and cold adhesive applied membranes installed over wood surfaces to manufacturers’ product installation specifications.</jstdiv>

Self-adhered membranes must not be installed on contaminated wood surfaces. A minimum 9.5 mm (3/8") nominal thick plywood sheeting (overlay) must be installed over all contaminated wood surface (eg. asphalt) to receive self-adhered membranes.

4.8.5 3.7.5 Protected and Modified Protected Membranes

On all protected and modified protected membrane roofing projects, a filter mat of approved material is to be properly installed between gravel ballast and insulation. The filter mat is required under pre-cast pavers that are used as ballast or walkways.

Insulation, which is bonded or mopped directly to the roof membrane, is not acceptable.

Concrete Ballast, Poured-in-place concrete or concrete topping as ballast or traffic topping is not permitted in the roof guarantee programs (see section 2.1.5 Waterproofing Membrane Systems). Only ballast, which permits easy or reasonable access to the membrane, is acceptable.

<jstdiv group="ref">Examples [of acceptable ballast]: properly sized gravel, concrete pavers, concrete-topped insulation, etc.</jstdiv>

Gravel Ballast: Protected Membrane and Ballasted Membrane (EPDM, TPO, PVC, etc.) Shall be clean, washed, round or crushed stone, falling within the following gradations: 35 mm (1-1/2") - 100 % Passing 25 mm (1") 70 - 100 % Passing 20 mm (3/4") 5 - 20 % Passing 12.5 mm (1/2") 0 - 6 % Passing 5 mm (3/16") 0 - 2 % Passing Any variance to the above must be accepted by the owner or the owner's representative and be confirmed in writing.

Pedestals: Installation of proprietary (purpose-made) pedestals, with integral spacer ribs for uniform spacing of pavers, or an accepted drainage layer designed to provide vertical separation between pre-cast pavers and substrate or other underlying materials, is mandatory. The use of proprietary drainage boards or pea gravel with filter fabric to provide drainage for unit masonry products (bricks, stone, etc.), is required. <jstdiv group="ref">The choice of pedestal or drainage layer type is the responsibility of the design authority. Pedestals / drainage layers provide airflow for drying surfaces and assist in leveling. They should not impede the flow of water or air, and should uniformly distribute the dead load of pavers, and other unit masonry products, as well as predicted live loads.</jstdiv>

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4.9 3.8 ROOFTOP GARDENS,PLANTERS & WALKWAYS

4.9.1 3.8.1 General

SBS Modified Bituminous membranes used on Landscaped and Vegetated roofing systems shall consist of two plies and the top ply (cap) must be a minimum thickness of 3.7 mm on the selvage edge, with a minimum 180g / meters squared polyester or equal strength combination reinforcement. Thermoset and Thermo Plastic (EPDM, TPO, PVC) single ply membranes used for Landscaped and Vegetated roofing systems shall be fully adhered and a minimum thickness of 1.5mm (0.060").

Membrane Protection: Protection for roofing membranes is required during the installation and maintenance of landscaping, extensive and intensive vegetated (green) roofing installations. The minimum membrane protection must be installed by the roofing or waterproofing contractor and shall be 3 mm (1/8") asphalt core protection board or 25 mm (1") minimum extruded polystyrene insulation plus filter mat, root intrusion barrier, and drainage layer. Tightly butt all protection and insulation boards, overlap all filter mat seams and seal all laps of roof intrusion barriers to RGC Guarantee Standards and manufacturer’s installation instructions.

<jstdiv group="policies">Only RGC accepted SBS Modified Bituminous, Thermoset and Thermoplastic roofing membranes that are specifically accepted by the membrane manufacturer for use on Landscaped and Vegetated (green) roof systems qualify for coverage under the RGC Guarantee Program.

The Membrane Manufacturer and RGC must confirm acceptance of other alternative protection systems or components in writing. Damage to membranes and flashings that results from the use of plants with aggressive root structures, (Bamboo, Willow etc.) for landscaped and green (vegetated) roof systems, is specifically not covered under the RGC Guarantee Program or the responsibility of RGC. For additional information refer to the latest addition of the British Columbia Landscape Standard, Green Roof Section.</jstdiv>

4.9.2 3.8.2 Root Barriers & Drainage

Proprietary root intrusion barriers must be acceptable to the roof membrane manufacturer and appropriate for the vegetation system installed. Polyethylene or polypropylene sheeting used as a root barrier shall be a minimum thickness of .2mm (8mils). Root Barriers shall be sheets or boards installed in a continuous plane above the roof membrane, carried up the inside of soil retention perimeters (separation zones), and must be installed with sealed laps and seams as per manufacturer's instructions.

A drainage layer is required. Specialized proprietary drainage products must be acceptable to the membrane manufacturer.

Separation Zones that are free of growing medium and vegetation are required around all roof perimeters, up-stands, drains, penetrations, mechanical equipment, expansion joints, etc. Zones must be a minimum of 300 mm (12”) wide and constructed with curbs or other physical barriers that separate and facilitate drainage. Physical barriers must be placed above the membrane protection layers and must not be attached through or penetrate the roof membrane.

4.9.3 3.8.3 Planter Design & Waterproofing

<jstdiv group="rec">Non-structural planters placed over landscaped deck and roofing membranes, with an appropriate protection layer, are strongly recommended whenever practical.</jstdiv>

4.9.4 3.8.4 Flood Testing

<jstdiv group="policies">Flood Testing is not a recommended practice but is at the discretion of the design authority or owner on systems permitted by ASTM D5957. If flood testing is required, testing shall be conducted prior to installation of overlying insulation or overburdens and conducted as per ASTM D5957.</jstdiv>

4.9.5 3.8.5 Overburdens

<jstdiv group="policies">In the case of Extensive Green Roofs (roof top gardens) with soil thickness of 200 mm (8") or less, when the landscaping (soil and plants) is included as part of the roofing specification and / or contract, the costs for removal and replacement of soil to access the membrane, to investigate or repair leaks in the membrane, are included in the RGC Guarantee coverage. Extensive Green Roofs may be constructed with coarse aggregate or be specialized proprietary drainage panels, vegetation trays and/or mats designed to direct excess water to roof drains. However, the removal and replacement of plants, irrigation lines and or equipment, electrical lines, landscape and decorative features such as concrete pads, statues, planters, large rocks, etc., to investigate or repair leaks in the membrane, is not included, and is the responsibility of others, subsequently such access shall be provided and or paid for by others.

In the case of Intensive Green Roofs (roof top gardens), and Landscaped Roofs with soil thickness in excess of 200 mm (8"), where access to the roofing membrane may be difficult, the removal and replacement of soil and plants to access the membrane to investigate or repair leaks in the membrane is the responsibility of others, and such access shall be paid by others. In addition, the removal and replacement of plants, irrigation lines or equipment, electrical lines, landscape and decorative features such as concrete pads, statues, planters, large rocks, etc., to investigate or repair leaks in the membrane is also the responsibility of others, and such access shall be provided and or paid for by others.

Structural planters that incorporate pre-curb or start-up curbs for walls that are completely sealed with membrane and are a minimum of 100 mm (4") in height, as detailed in Section 5 & 9 Construction Drawings, qualify for RGC Guarantee coverage. Waterproofing liners in planters with structural walls, concrete curb or other materials, that do not incorporate pre-curbs shall be isolated and separated from the guaranteed roofing membrane and are specifically not accepted under the RGC guarantee.</jstdiv>

4.9.6 3.8.6 Walkways and Warning Zones

<jstdiv group="policies">When primary roof membranes of contrasting colour are used for warning zones, membrane end lap off sets and ply side lap directions must be maintained. Staggered membrane end lap offsets may be positioned below primary roof membranes that are used for warning zones.</jstdiv>

<jstdiv group="ref">A design authority or membrane manufacturer may specify a proprietary walkway protection system or warning zone membrane over the primary roof membrane. Walkway and warning zone materials are not part of the roofing membrane assembly but are typically accessory products that are placed over completed roof membranes. Subsequently the type and performance of any walkway or warning zone material is specifically excluded from coverage under the RGC guarantee, as is any detrimental effect the materials may have on the roof system.</jstdiv>

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4.10 3.9 PERIMETER FLASHINGS: MEMBRANES

4.10.1 3.9.1 General

Membrane flashing (stripping) details (with the exception of low parapets, cant strip edges and RGC accepted door sill details) must be designed to provide a minimum 200 mm (8") sealed height above the finished roof surfacing. Surfacing is defined as the top of the roofing assembly, be it membrane, ballast or growing medium (soil). All membrane flashing (stripping) terminating on a vertical surface must be mechanically fastened.

Curbed openings (HVAC, skylights, etc.) must be a minimum height of 200 mm (8") and have at least one ply of membrane flashing (stripping) carried to the inside edge of the curb, or up under the built-in counter-flashing of pre-manufactured metal curbs (i.e. roof scuttles or HVAC) (see Detail Reference here).

Parapet walls may be less than 200 mm (8") in height, but not less than 87.7 mm (3½") in height, refer to RGC Guarantee Standard A6.10.3 (see Details Section 10.3.2).

All cant edge and parapet wall details must have membrane flashing (stripping) that overlaps the exterior finish (i.e. wall cladding) by a minimum of 50 mm (2"). On high parapet walls, that are completely flashed with metal, where membrane flashing (stripping) is terminated part way up the wall the remainder of the parapet must be covered with a flashing underlay of a minimum 40 mils or 1 mm (.040") self-adhered modified bitumen membrane. No. 15 Felt is not acceptable (see Detail Section 10.3.1).

All membrane flashing (stripping) terminating at cladded (i.e. stucco, siding, etc.) walls must lap under the sheathing membrane and cladding by minimum of 75 mm (3").

All membrane flashing (stripping) terminating under a reglet must be sealed to the wall with a compatible mastic (see Detail Section 10.3.3). Where a parapet, cant or separation / expansion joint detail intersects with a higher wall; the membrane flashing (stripping) must be sealed by gussets (membrane saddles) that are formed to protect the inside and outside corners (see Detail Section 10.3.1).

<jstdiv group="policies">New construction projects must follow proper sequencing. Where roof flashings overlap work by others (i.e. siding, stucco, etc.), this work must be complete prior to the installation of metal flashing or wood blocking must be installed to facilitate the future installation of the exterior wall finish under the cap flashing. When lapping under work by others (siding, stucco, etc.), the membrane and metal roof flashings must be installed prior to any wall coverings. Any variance to proper detail sequencing must be approved by the design authority in writing (see Section 10.3.3).

A reverse lap application method for base sheet and base sheet flashing (stripping), at roof up stand transitions, is permitted when self-adhered base sheet flashing is used as flame protection for wood surfaces. Use of the reverse lap method must be an acceptable application method to the membrane manufacturer.

If no published instructions are available, specific instructions in writing from the manufacturer must be obtained and filed with RGC before project start-up.

The roof system must be as per the complete tested assembly and a calculation for the building wind load requirements using the Wind-RCI calculator or Roofnav www.roofnav.comas applicable be submitted with project documents.</jstdiv>

<jstdiv group="ref">There is no minimum height requirement for exterior walls, (e.g. eave drip and gravel stop flashing)</jstdiv>

4.10.2 3.9.2 Cant Strips

Wood: Cant strips are only required as recommended by the membrane manufacturer. The use of hemlock lumber for construction of cant strips and related blocking is not acceptable.

Fibre Cants: Only fibre cants manufactured from non-combustible materials i.e.: perlitic or fire-resistant fibreboard are acceptable for use on roof systems with torch applied membranes.

The self-adhered base sheet must extend a minimum of 150 mm (6") onto the roof surface. The heat welded field membrane must be turned up at the vertical surface a minimum of 100 mm (4") or a heat welded base sheet transition gusset extending 100 mm (4") onto the roof and upstand surfaces be installed.

Membrane gussets must be installed to all inside and outside corners.

Modified Bituminous Base Sheet pre-stripping ply required at all perimeters, upstands and penetrations. Cap sheet stripping is required and must extend 150 mm (6") horizontally and 200 mm (8") vertically from the base of all upstands. All stripping terminating on vertical surfaces must be mechanically fastened.

4.10.3 3.9.3 Expansion and Control Joints

Roof Separation Joints (Expansion and Control Joints, etc.) / Equipment Sleepers / Safety Anchor Piers (poured in place pads) that are completely sealed (enveloped) with membrane flashing (stripping) may be less than 200 mm (8") in height but must not be less than 100 mm (4") in height above the finished roof surface.

Manufacturer’s proprietary roof expansion joint systems are acceptable for use when the systems are located a minimum of 200mm (8") above the finished roof surface and are completely sheathed (covered) with sloped metal flashing.

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4.10.4 3.9.4 Door Openings

Door sill membrane flashing (stripping) may be less than 200 mm (8") in height but must not be less than 100 mm (4") above the primary roof membrane and must be installed to comply with the following conditions:

  • A metal water stop flashing, formed with pan folded, welded or soldered corners must be mechanically attached to inside of door sill framing or opening and be sealed with membrane flashing (stripping).
  • Membrane flashing, (stripping) or metal pan sill flashing must be installed at doorjamb framing or opening to a minimum height of 100 mm (4") above door sill framing or opening, prior to installation of doorjambs and door sills.
  • Membrane gussets must be installed at sill corners.
  • Metal pan sill flashings or RGC accepted reinforced liquid flashing systems must be installed wherever clearances preclude the use of membrane flashing (stripping) to seal door sill details.
  • Slopes must be provided to direct water away from door sill details. (Overhangs are recommended wherever practical).
  • Overflow drains in that area must be installed a minimum 25 mm (1") lower in height than adjacent door sills.

4.10.5 3.9.5 Built-in Membrane Gutters

<jstdiv group="policies">When a built in membrane gutter joins an RGC Guaranteed sloped roof; the gutter will be included by the Guarantee. Built-in membrane gutters that drain a roof not covered by an RGC Guarantee are not eligible for a Guarantee.</jstdiv>

4.11 3.10 PERIMETER FLASHINGS: METAL

4.11.1 3.10.1 General

All roof protrusion and penetration flashings, vents, curbs, sleepers, pipes cable, drains, etc. shall NOT be installed LESS than 200mm (8") from the base of walls, cants, eaves and other roof equipment, protrusion and penetration flashings.

Metal base flashing shall be kept approximately 25 mm (1") above gravel to prevent immersion in water with the exception of protected and modified protected roof systems. (Question: is this relevant to SBS roof systems Standards?).

<jstdiv group="policies">Gravel stop-type flashings may be used, provided manufacturer's printed instructions are followed (see Section reference, if required).</jstdiv><jstdiv group="ref">The exceptions are overflow drains and roof scuppers that are installed through walls. These items are to be located by others.

Sheet metal flashings are designed to divert water away from the membrane flashing termination, usually onto the roof. The metal flashing also protects the membrane from deterioration due to the elements and from mechanical damage. The metal flashing is not a waterproofing membrane, therefore the roofing membrane should be continuous under the metal (see details Section 10.3 and RGC Guarantee Standards for requirements).

Metal flashing is essential to complete most waterproofing and roofing applications and attention to detail is critical. Some basic rules to observe when designing or installing metal flashings are:

  • only “S-lock” or “standing seams” are permitted (see Section 10.2.1)
  • metal counter flashings always go on top of the completed roof membrane
  • limit metal flashing lengths to 3.04 m (10' )
  • extend base flashings down over membrane flashing at cants to minimum 25 mm (1") above roof membrane surface. (Not applicable to protected membrane roof assemblies.)

For further details, the Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA) publishes a reliable reference for the proper design and installation of architectural sheet metal. The Architectural Sheet Metal Manual is available from:

Sheet Metal and Air Conditioning Contractors National Association, Inc. c/o British Columbia Sheet Metal Association 156 - 4664 Lougheed Hwy Burnaby, B.C. V5C 5T5 (604) 299-4641</jstdiv>

4.11.2 3.10.2 Material Standards

The following minimum gauges and / or weights of commonly used metals or alloys will be applied to all projects under the Guarantee Program. The length of metal flashing shall be limited to a maximum of 3.04 m (10').

GALVANIZED STEEL: 0.50 mm (0.0196", 26 gauge) galvanized steel sheet, conforming to ASTM A653 / A653M-06 CS Type B, Z275 (G90) coating. Thickness tolerance as per ASTM A924/A924M-06 ±0.08 mm (0.003") for sheet widths not exceeding 1500 mm (60").

ALUMINIUM – ZINC ALLOY COATED STEEL: 0.50 mm (0.0196", 26 gauge) aluminium-zinc alloy coated steel sheet, conforming to ASTM A792/A792M-06 CS Type B, AZM150 (AZ50) coating. Thickness tolerance as per ASTM A924/A924M-06 ±0.08 mm (0.003") for sheet widths not exceeding 1500 mm (60").

ALUMINIUM: 0.80 mm (0.032", 20 gauge) aluminium sheet, utility quality to CSA HA Series - 1975, plain or embossed finish. Maximum thickness tolerance variation ± 0.06 mm (0.0025") based on 1200 mm (48") wide sheet.

STAINLESS STEEL: 0.38 mm (0.014", 28 gauge) stainless steel, Type 302, 304, 316, 2B finish to ASTM A167-82. Maximum thickness tolerance variation ± 0.04 mm (0.0015") based on 1200 mm (48") wide sheet. COPPER: 0.56 mm (0.022", 16 oz.) copper sheet, cold rolled roofing copper to ASTM B370-81. Maximum thickness tolerance variation ± 0.09 mm (0.0035") based on 1200 mm (48") wide sheet.

ZINC: 0.80 mm (0.031") zinc Sheet conforming to European standard EN 988-1996. Maximum thickness tolerance variation ± 0.03 mm (0.0012").

<jstdiv group="rec">Specifying authorities should indicate the type and gauge of metal required, as well as the qualifying standards. The reference standard for gauges is USS REV (metric in mm).</jstdiv>

4.11.3 3.10.3 Attachment

The use of concealed in-seam fasteners is required. Any fastening of metal flashings on the top of parapet surfaces is strongly discouraged and is not permitted as the only attachment method.

If top-surface fastening must be used because of a specific job site condition, only appropriate screw-type fasteners with neoprene washers may be used. Nails are not acceptable. The outside and inside face of metal cap flashing must be attached with cladding fasteners (screws), and/or concealed clips. Continuous and discontinuous concealed clips and or cladding screw fasteners or a combination of these attachment methods are acceptable to secure metal cap flashing. No fastening of flashing is permitted within 87.7 mm (3-1/2") of the roof surface. Note: Cladding fasteners or concealed clips are not required on the inside face of roof edge cant strip details.

Cladding fasteners (screws) with gasketed washers, used as exposed fasteners for metal flashing, must be No. 8 or better, made of metal compatible with and corresponding in colour to, the flashing material being installed. Nails are not acceptable as exposed fasteners. The minimum number of cladding screws used to face fasten metal cap flashing shall be three (3) fasteners equally spaced (±10%) between seams of flashing formed from 3000 mm (10 ft.) metal stock and a minimum of two fasteners equally spaced (±10%) between flashing seams formed from 2400 mm (8 ft.) metal stock. Concealed clips, both continuous and discontinuous, shall be formed from the same metal type as the flashing being secured and be minimum 24 gauge in thickness. In addition, concealed clips are to be fastened as close to the bottom edge (hook) as practical but must not be fastened further than a maximum of 75 mm (3") from the bottom edge (hook). Concealed clips must engage drip or safety edges by a minimum of 12.7 mm (1/2").

Continuous Concealed Clips are to be attached with appropriate corrosive resistant fasteners spaced at a maximum of 300 mm (12") o/c. Discontinuous Concealed Clips shall consist of a single clip centred between the seams of each length of metal flashing. Clips shall be a minimum of 1000 mm (40") in length for flashing formed from 3000 mm (10 ft.) metal stock and a minimum 800 mm (32") in length for 2400 mm (8 ft.) metal stock. Discontinuous clips for shorter flashing lengths shall be approximately 1/3 the length of the metal flashing but not less than 100 mm (4") in length. Corrosive resistant fasteners for clips, to be spaced a maximum of 300 mm (12") o/c.

<jstbutton group="Guarantee Standards">Guarantee Standards</jstbutton><jstbutton group="policies">Policies</jstbutton> <jstbutton group="rec">Recommendations</jstbutton> <jstbutton group="ref">Reference</jstbutton>

4.11.4 3.10.4 Curb Heights (Roof Openings)

On all roofing assemblies (protected, modified protected or conventional), the minimum curb height (equipment curbs, vent curbs, etc.) shall be 200 mm (8") above the roof surfacing. Surfacing is defined as the top of the roofing assembly, be it membrane or ballast.

4.11.5 3.10.5 Seams

Standing seams and S-lock seams are both acceptable.

Seaming of inside corners shall be carried to the base of the cant or the base of the metal. S-locks shall be fastened before the insertion of successive flashings. .2 Lap seams are acceptable only where the vertical run on the inside corner is less than 100 mm (4").

When the vertical height exceeds 300 mm (12"), standard seaming practices will be followed. When cants are not used on curbs standard seaming practices (standing seams) shall be followed, with the exception of the vertical flashing portion that is lapped to fit under counter flashing or equipment flanges.

<jstdiv group="policies">For roof curb-flashing seams ( e.g. equipment, skylights, etc.), which do not exceed 300 mm (12") in height, lap-type seams may be used on the vertical portion provided standing seams are used in the cant area.</jstdiv>

The design authority shall choose and specify the seaming system.

4.11.6 3.10.6 Cap Flashings, Base Flashings and Reglets

The top surface of walls (parapets, expansion joints, firewalls, roof dividers, etc.) wider than 100 mm (4" nominal) shall be constructed to provide positive slope to drain and be covered with metal cap flashing. Provide a reglet for all flashings terminating in concrete or masonry walls. When wall flashing terminates in a reglet, typically on high parapet walls, a coping flashing is required at the top of the parapet wall (See Metal Flashing Details; Section Reference needed). On new construction projects reglet and sloped wood blocking at top surface of concrete or masonry walls are to be installed by others (see Section 10.3.3).

<jstdiv group="policies">On flexible membrane conventional roofing systems, when metal wall or curb base flashings are not specified, RGC and manufacturer's approved wall or curb stripping membranes are acceptable when used with a secondary metal counter flashing placed a maximum of 250 mm (10") above the surface of the roof assembly. Stucco stops are not considered secondary metal counter flashings (see Section 10.3.3).</jstdiv>

Metal base flashings are required on all walls and curbs on roof systems that utilize gravel ballast filter mats. Metal base flashings on protected and modified protected membrane roofs must “kick out” minimum 50 mm (2") over insulation and filter fabric. (See note Section 10.1.1).

Neither No. 90 mineral roofing nor asphalt strip-type shingles are acceptable as parapet flashing in lieu of sheet metal flashing. Reglet must be 200 mm (8") minimum to 300 mm (12") maximum above the roof surface in conventional and protected membrane roofs. Roof surface is defined as the top of the roofing assembly, be it membrane or ballast.

In the case of multi-wythe masonry, composite walls, or parapets, and where not restricted by seismic codes, continuous flexible thru-wall flashings must be supplied and installed (by others), at the next course above the reglet or, alternatively, the inside of the parapet wall must be completely flashed or cladded.

Metal base flashing is required on all vertical surfaces, walls, curbs, etc. when hot asphalt is used to adhere stripping (flashing) membranes.

<jstdiv group="policies">Gum edge or gum lip flashings should be avoided in all circumstances. If job conditions allow for no other alternative, written permission from RGC for use of gum edge flashing must be obtained (also called surface reglet) (see Section Reference needed).</jstdiv>

4.11.7 3.10.7 Flashing on Stucco Walls

On stucco-faced walls, only 2-piece flashings are permitted. The upper piece, retaining the stucco, must have a vertical flange to extend behind stucco and building paper. Stucco stops are not considered metal counter flashings (see Section Reference needed).

4.12 3.11 ROOF PENETRATIONS and DRAINS

4.12.1 3.11.1 General

Flanges - All roof flanges in contact with asphaltic membranes of any type shall be primed both sides with membrane manufacturers approved primer and embedded in a trowel coating of compatible mastic. Flanges are to be a minimum of 100 mm (4") wide.

Lead flanges in contact with asphaltic membranes of any type shall be embedded in a trowel coating of compatible plastic cement. Priming is not required.

All vent plumbing flashings shall be constructed of non-ferrous material.

4.12.2 3.11.2 Gum Pans (Pitch Pockets)

With the exception of one on-site formed double standing seam corner joint and adjoining lapped flange joint, all flange corners shall be closed and soldered. <jstdiv group="policies">Use only membrane manufacturer’s approved proprietary urethane based structural sealants to fill gum pans or pitch pockets.

Install a back-up storm collar whenever practical (see detail Section 10.3. - new reference needed).</jstdiv> <jstdiv group="rec">This detail should be avoided; only use gum pans or pitch pockets as a last resort when other methods are impractical.</jstdiv>

<jstbutton group="Guarantee Standards">Guarantee Standards</jstbutton><jstbutton group="policies">Policies</jstbutton> <jstbutton group="rec">Recommendations</jstbutton> <jstbutton group="ref">Reference</jstbutton>

4.12.3 3.11.3 Strip-in Flashings

Strip-in Flashings (with membrane material) must be a minimum height of 200 mm (8") above finished roof surfaces. This includes strip-in type flashings for cables and multiple roof penetrations including grouped pipes and or cables must be purpose made roof flashings.

Strip-in vents will not be permitted for use in protected or modified protected membrane roofs. Curb mounting for all venting units and equipment except lead or aluminium jacks is mandatory.

Curbs are to be a minimum 200 mm (8") in height above top of finished surfacing.

<jstdiv group="policies">Strip-in type roof penetration flashings (lead, aluminium, stainless steel, copper, etc.) must be properly sized to fit pipe penetrations or alternatively, when pipes are irregular in size, spray foam urethane insulation may be used to fill gaps between pipes and flashings. Strip-in type roof penetration flashings are only permitted for use with single pipe roof penetrations, must incorporate properly fitted settlement caps,

Pipes that are higher than standard flashings must have site formed non-bituminous flexible roof membrane storm collars sealed with compatible sealants and stainless steel clamps.

All-purpose made multiple penetration flashings must provide a positive weather seal by use of manufacturer’s proprietary rubber based friction seals, mechanical clamps or gooseneck type design, and be a minimum height of 200 mm (8") above finished roof surfaces

Strip-in type vents are permitted up to 350 mm x 350 mm (14" x 14"), equal to approximately 0.12 meter squared (196 sq. in.) on exposed or conventionally-placed membrane roofs provided the vents are not located in or near a valley and are well drained.</jstdiv>

<jstdiv group="ref">Alternatively, roof curbs with metal hoods may be used to seal cables and multiple roof penetrations. (Refer to tab 10.3.5)

Curbs are to be supplied and installed by others.

Metal wall base flashing is optional with these application methods.</jstdiv>


Alternate presentation of same information

4.12.3.1 3.11.3.1 STRIP-IN FLASHINGS (lead, aluminium, stainless steel, copper, etc., flashed in with membrane material)
  • must be a minimum height of 200 mm (8") above finished roof surfaces.
  • include strip-in type flashings for cables and multiple roof penetrations including grouped pipes and or cables must be purpose made roof flashings.
  • must be properly sized to fit pipe penetrations (Alternatively, when pipes are irregular in size, spray foam urethane insulation may be used to fill gaps between pipes and flashings.)
  • are permitted only for use with single pipe roof penetrations and must incorporate properly fitted settlement caps.
4.12.3.2 3.11.3.2 STRIP-IN TYPE VENTS
  • are permitted up to 350 mm x 350 mm (14" x 14"), equal to approximately 0.12 meter squared (196 sq. in.) on exposed or conventionally-placed membrane roofs, provided the vents are not located in or near a valley and are well drained.
  • will not be permitted for use in protected or modified protected membrane roofs. Curb mounting for all venting units and equipment except lead or aluminium jacks is mandatory on protected or modified protected membrane roofs.
4.12.3.3 3.11.3.3 STRIP-IN CURBS
  • are to be a minimum 200 mm (8") in height above top of finished surfacing.
  • are to be supplied and installed by others.


All-purpose made multiple penetration flashings must provide a positive weather seal by use of manufacturer’s proprietary rubber based friction seals, mechanical clamps or gooseneck type design, and be a minimum height of 200 mm (8") above finished roof surfaces.

Metal wall base flashing is optional with these application methods.

4.12.4 3.11.4 Roof Drains and Scuppers

Overflow scuppers shall be installed according to the British Columbia Building Code (BCBC).

Overflow scuppers are required when low doorway or window details are used, see standard A5.6.3

<jstdiv group="policies">When cast-iron roof drains are used; a sump receiver and under-deck clamp must be provided and installed by the trade supplying the roof drain. In addition, the trade supplying roof drains must also provide secondary stainless steel debris strainers in addition to primary drain strainers on all roofing systems that utilize gravel ballast and or growing mediums (soil). Only the use of drain manufacturer’s proprietary secondary stainless steel debris strainers is acceptable.

All flange type roof drains shall be constructed of non-ferrous material. Flanged copper drains shall be formed from a minimum weight of 16 oz. sheet copper for external (on outside of walls) drains and 24 oz. sheet copper for internal (inside walls or buildings) drains. The minimum gauge for aluminium sheet to be used for roof drains shall be 20 gauge for external use and 12 gauge for internal use. In addition, the trade supplying roof drains must also provide secondary stainless steel debris strainers in addition to primary drain strainers on all roofing systems that utilize gravel ballast and or growing mediums (soil). Only the use of drain manufacturer’s proprietary secondary stainless steel debris strainers is acceptable. All roof scuppers shall be formed with a minimum 37.7 mm (1.5") lower outside faces than side walls of the water collection boxes and incorporate minimum 12.7 mm (.5") drip edges on the lowered outside faces.

On all re-roofing projects all drains connected to internal piping shall be connected by mechanical compression type seals only. “O”- rings, mastics and caulking are not acceptable methods to seal roof drains to internal piping.

Where no overflow scuppers are specified, the structure must be designed to carry the total load of water collected in the event of the failure of roof drains (See BCBC latest edition). RGC recommends overflow scuppers be installed where perimeter walls exceed 100 mm (4") in height and accepts no responsibility for roof failure where scuppers are not specified or installed.

Roof drains and other roof accessories are to be installed as per membrane manufacturer's instructions.</jstdiv>

4.13 3.12 OTHER DETAILS

To be developed

5 4. SBS Roof Systems: Accepted Materials

ACCEPTED PRODUCTS AND SYSTEMS FOR ROOFSTAR FIVE (5) YEAR, ROOFSTAR TEN (10) YEAR, AND ROOFSTAR FIVE (5) YEAR WATERPROOFING GUARANTEES.

This list of acceptable materials is not intended for use as a comparison of material performance or quality. It is the sole responsiblity of the design authority to assess the performance capability and material suitability for specific design requirements.

The materials listed are those which have been accepted by the RCABC Guarantee Corp. (RGC) upon application by the manufacturer/supplier, in compliance with RGC Policy A-041, and are materials for which RoofStar Guarantee Certificates are available. The acceptance of these materials in no way reflects on the quality or performance of other materials not listed.

The materials and guideline specifications are listed under the name of the manufacturer and/or supplier of the primary membrane material; except that RGC has issued the guidelines on traditional built-up roofing systems (BUR) incorporating organic and glass felt primary membranes.

The numbers to the left of the index items refer to Sections of the RPM.

5.1 4.1 Vapour Retarders

The RCABC does not specify Vapour Retarders, as they are not included in the Guarantee Program. See manufacturer specifications where Vapour Retarders are required, and refer to proprietary products and installation instructions. This cross-reference is listed for information only.

5.2 4.2 Deck Overlay Boards

Click on any one of the tabs to the right to find products by manufacturer

Georgia-Pacific Canada Ltd. - Section Link
  • DensDeck Roofguard: Water-Resistant Gypsum Board
  • DensDeck Prime Roof: Guard - Water Resistant Gypsum Board
Securerock - Section Link
  • Gypsum: Fibre Roof Board
  • Glass: Mat Roof Board
Soprema Inc. - Section Link
  • Soprabase FR: Fire Resistant Wood Fibreboard with a Factory applied Base Sheet
  • Xpress Board: Non-Combustible Mineral Wool Insulation with Factory Applied Base Sheet
  • Soprasmart ISO HD 180: HD polyisocyanurate board with a heat fused membrane

Click on any one of the tabs to the right to find products by manufacturer

5.3 4.3 Insulation

This section includes tapered insulation, found in each product type/manufacturer shown below.

5.3.1 4.3.1 Composite Board Insulation

Click on any one of the tabs to the right to find products by manufacturer

Composite board roof insulation products consist of an insulation bonded with another insulation and / or a variety of other products (typically fibreboard, perlite, membranes, etc.) to form a unified, multi-layered insulation board. The top and bottom surfaces of the board may be impregnated and / or coated with asphalt (or other binders), and covered with facing materials such as roofing felts, foils, kraft paper modified bituminous membranes, etc.

The properties and performance of composite board roof insulation varies with the components of the board. Generally, the boards are manufactured to provide some of the following properties and advantages:

  • Compatible with asphalt,
  • Resistant to thermal conductivity,
  • Resistant to fire,
  • Resistant to the effects of moisture,
  • Resistant to cell deterioration (durable),
  • Resistant to impact, and / or
  • Unaffected by asphalt application temperatures (no overlay may be required).

The possible disadvantages and precautions involved in the use of composite board insulations include:

  • Complexity of manufacture and dissimilar materials,
  • Sometimes expensive, and
  • Limited availability

Posi-Slope Western

  • MF - Protect Board Composite - Non-combustible mineral

Soprema Inc.

  • Xpress Board - Non-Combustible Mineral Wool Insulation with Factory Applied Base Sheet
5.3.2 4.3.2 Extruded Expanded Polystyrene Foam (XPS)

Click on any one of the tabs to the right to find products by manufacturer

(See also Expanded Polystyrene Foam and Protected Membrane Roof Assemblies)

Molten polystyrene and a blowing agent HCFC (142B) are mixed, under pressure, in an extruder. As this solution is extruded through an orifice into ambient temperature and controlled conditions, the blowing agent vapourizes causing the polystyrene to expand approximately 30 times its original size. The continuous extrusion process produces boards with a surface “skin” and closed cell structure and, for this reason, has been used extensively for protected membrane roof assemblies. The rigid insulation boards are expanded to a specific thickness during manufacture and have an approximate density of 32 kg / cu. m (2 lb / cu.ft).

Extruded expanded polystyrene foam roof insulation is combustible and, when used on steel decks or over a roof that is subject to fire exposure from below, a fire-rated underlayment or thermal barrier (such as gypsum board) may be required between the roof deck and the insulation (consult Building Code and insurance requirements).

Extruded expanded polystyrene roof insulation is manufactured to CAN / ULC-S701 standard and is currently available in three types (depending on physical properties) and in four forms, as follows:

  • Type 4 for use on conventional or protected membrane roofing systems
  • Type 4 with a factory-applied latex-modified concrete topping for protected membrane roofing systems
  • Type 3 for use on conventional roof systems
  • Type 2 for use on conventional roofing systems [density of 24 kg / cu.m (1.5 lb / cu.ft)]

Extruded polystyrene roof insulation provides the following properties and advantages:

  • Compatible with asphalt
  • Resistant to the effects of moisture
  • Resistant to cell deterioration (durable)
  • Resistant to impact
  • Resistant to thermal conductivity
  • Stable K-value

The possible disadvantages or precautions involved in the use of extruded polystyrene roof insulation include:

  • Flammable (combustible)
  • Affected by solvents (i.e. adhesives and cleaners used for single ply membranes)
  • Heat sensitive [requires an insulation overlay, such as fibreboard, to prevent “melting” (burnouts) from hot asphalt]
  • Will not retain nails (requires screws and plates)
  • Dimensional instability may result from improper curing at the factory

Dow Chemical Canada Inc.

Manufacturer: DOW CHEMICAL CANADA INC.

Contact Address: See Membership List Section 1

Product Group: EXTRUDED, EXPANDED POLYSTYRENE INSULATION

Country of Origin: United States

Country of Manufacture: Canada, United States, locations worldwide

DESCRIPTION

The roofing assembly / material information published in the RGC Roofing Practices Manual does NOT represent a complete set of the manufacturer's published data, nor does it represent a detailed specification. The preparation of a detailed specification is the responsibility of the design authority.

DECKMATE* (Type 2)

DECKMATE insulation is specifically designed to provide high quality, economical insulation for all conventional roofs, with single-ply, 2-ply or 4-ply roof membranes.

DECKMATE roof insulation is an extruded, expanded Type 2 CAN / ULC-S701-97 / CAN / CGSB-51.20-M87 polystyrene foam. It has excellent insulating characteristics (RSI 0.87 per 25 mm (R 5.0 per inch) of thickness), good compressive strength (110 kPa or 16 psi), and low water absorption (less than 1%).

DECKMATE has a smooth, high-density skin, and a closed-cell foam structure with shiplap edges on four sides. It is uniform in thickness and consistency and is easy to cut and handle. When installing, DECKMATE can be either loosely applied or attached to the substrate with mechanical fasteners, hot asphalt or adhesive. Board size is 600 mm x 2400 mm (2' x 8'), in thickness ranging from 25 mm to 100 mm (1" to 4").

DECKMATE* PLUS (Type 3)

DECKMATE* PLUS insulation is specifically designed to provide high quality, economical insulation for conventional roofs, with single-ply, two-ply or four-ply roof membranes.

DECKMATE* PLUS roof insulation is an extruded, expanded, Type 3 CAN / ULC S701 polystyrene foam. It has excellent insulating characteristics (RSI-.087 per 25 mm [R 5.0 per inch] of thickness), good compressive strength (140 kPa or 20 psi) and low water absorption (less than 1%).

DECKMATE* PLUS has a smooth, high-density skin, and a closed cell structure, with ship-lapped edges on four sides. It is uniform in thickness and consistency, and is easy to cut and handle. When installing, DECKMATE * PLUS can be either loose applied or attached to the substrate with mechanical fasteners, hot asphalt or adhesive. Board size is 600 mm x 2400 mm (2' x 8'), in thickness ranging from 25 mm - 100 mm (1" - 4").

ROOFMATE* (Type 4)

ROOFMATE insulation is an extruded, expanded, foamed Type 4 CAN / ULC-S701-97 / CAN / CGSB-51.20-M87 polystyrene rigid board designed specifically for roof applications. It is suitable for use in both protected membrane and conventional roof assemblies.

The extruded board has smooth, high-density skins, shiplap edges on four sides and a very dense closed-cell foam structure. Board size is 600 mm x 2400 mm (2' x 8'), in thickness ranging from 25 mm to 100 mm (1" to 4"). ROOFMATE has one of the highest thermal resistance values, an aged (RSI value of 0.87 per 25 mm (R 5.0 per inch). It has excellent water resistance characteristics (absorption of less than 1%) and a high compressive strength of 240 kPa (35 psi).

ROOFMATE is ideal for use in both standard and lightweight protected membrane roof systems and can be adhered or loosely applied. It is lightweight, easy to cut and simple to install year round.

Owens Corning Canada

Manufacturer: OWENS CORNING CANADA INC.

Contact Address: See Membership List Section 1

Product Group: EXTRUDED, EXPANDED POLYSTYRENE INSULATION

Country of Origin: United States

Country of Manufacture: Canada, United States, locations worldwide

DESCRIPTION

The roofing assembly / material information published in the RGC Roofing Practices Manual does NOT represent a complete set of the manufacturer's published data, nor does it represent a detailed specification. The preparation of a detailed specification is the responsibility of the design authority.

FOAMULAR® C200 (Type 3)

FOAMULAR® C200® insulation is specifically designed to provide high quality, economical insulation for conventional roofs, with single-ply, two-ply or four-ply roof membranes.

FOAMULAR® C200® insulation is an extruded, Type 3 CAN / ULC S701 polystyrene foam. It has excellent insulating characteristics (RSI-.088 per 25 mm [R 5.0 per inch] of thickness), compressive strength (140 kPa or 20 psi) and low water absorption (less than 0.7%).

FOAMULAR® C200® has a smooth, high-density skin, and a closed cell structure, with ship-lapped or square edges on four sides. It is uniform in thickness and consistency, and is easy to cut and handle. When installing, FOAMULAR® C200® can be either loose applied or attached to the substrate with mechanical fasteners, hot asphalt or adhesive. Board size is 600 mm x 2400 mm (2' x 8'), in thickness ranging from 25 mm - 100 mm (1" - 4").

FOAMULAR® F350 (Type 4)

FOAMULAR® F350 insulation is an extruded, Type 4 CAN/ULC-S701/CAN/CGSB-51.20-M87 polystyrene rigid board designed specifically for roof applications. It is suitable for use in both protected membrane and conventional roof assemblies

The extruded board has smooth, high-density skins, shiplap edges on four sides and a very dense closed-cell foam structure. Board size is 600 mm x 1200 mm (2' x 4'), in thickness ranging from 25 mm to 100 mm (1" to 4"). FOAMULAR® F350 has one of the highest thermal resistance values, an aged (RSI value of 0.88 per 25 mm (R 5.0 per inch). It has excellent water resistance characteristics (absorption of less than 0.7%) and a high compressive strength of 240 kPa (35 psi).

FOAMULAR® F350 is ideal for use in both standard and lightweight protected membrane roof systems and can be adhered or loosely applied. It is lightweight, easy to cut and simple to install year round.

FOAMULAR® F350 CVI (Type 4)

FOAMULAR® F350 CVI insulation is an extruded, Type 4 CAN/ULC-S701/CAN/CGSB-51.20-M87 polystyrene rigid board designed specifically for roof applications. It is suitable for use in both protected membrane and conventional roof assemblies.

The extruded board has smooth, high-density skins, shiplap edges on four sides and a very dense closed-cell foam structure. Board size is 600 mm x 1200 mm (2' x 4'), in thickness ranging from 25 mm to 100 mm (1" to 4"). FOAMULAR® F350 CVI has one of the highest thermal resistance values, an aged (RSI value of 0.88 per 25mm (R 5.0 per inch). It has excellent water resistance characteristics (absorption of less than 0.7%) and a high compressive strength of 240 kPa (35psi).

Owens Corning developed the FOAMULAR® 350 CVI board with drainage channels on the underside and around the entire perimeter. Compared to the FOAMULAR® 350 board, the FOAMULAR® 350 CVI board has the additional advantage of facilitating the flow of water infiltrated under the insulating boards to the waterproofing system's surface and drains.

FOAMULAR® F350 CVI is ideal for use in both standard and lightweight protected membrane roof systems and can be adhered or loosely applied. It is lightweight, easy to cut and simple to install year round.

FOAMULAR® 400/600/1000 (Type 4)

FOAMULAR® 400/600/1000 insulation is an extruded Type 4 CAN/ULC-S701-CAN/CGSB-51.20-M87 polystyrene rigid board insulation that is specifically designed to provide high quality, economical insulation for conventional roofs, with single-ply, two-ply or four-ply roof membranes.

The extruded board has smooth, high-density skins, shiplap or Square edges on four sides and a very dense closed-cell foam sturcture. Board size is 600 mm x 1200 mm (2'x 8'), in thickness ranging from 25 mm to 100 mm (1" to 4"). FOAMULAR® 400/600/1000 has one of the highest thermal resistance values, an aged (RSI value of 0.88 per 25 mm (R5.0 per inch). It has excellent water resistance characteristics (absorption of less than 0.7%) and a high compressive strength of 275 kPa, 415 KPa, 690 KPa (40 psi, 60 psi, and 100 psi).

FOAMULAR® 400/600/1000 is ideal for use in both standard and lightweight protected membrane roof systems and can be adhered or loosely applied. It is lightweight, easy to cut and simple to install year round.

FOAMULAR® 404/604 and FOAMULAR® 404 RB/604 RB (Type 4)

FOAMULAR® 404/604 and FOAMULAR® 404 RB/604 RB insulation is an extruded Type 4 CAN/ULC-S701-CAN/CGSB-51.20-M87 polystyrene rigid board insulation that is specifically designed to provide high quality, economical insulation for conventional roofs, with single-ply, two-ply or four-ply roof membranes.

The extruded board has smooth, high-density skins, shiplap or Square edges on four sides and a very dense closed-cell foam structure. Board size is 600 mm x 1200 mm (2' x 8'), in thickness ranging from 38 mm to 76 mm (1.5" to 3"). FOAMULAR® 404/604 and FOAMULAR® 404 RB/604 RB has one of the highest thermal resistance values, an aged (RSI value of 0.88 per 25 mm (R 5.0 per inch) for the FOAMULAR® 404/604 and (RSI value of 0.84 per 25 mm (R 4.75 per inch) for the FOAMULAR® 404 RB/604 RB. It has excellent water resistance characteristics (absorption of than 0.05%) and a high compressive strength of 275 kPa, 415 KPa, 690 KPa (40 psi, 60 psi and 100 psi).

Owens Corning developed the FOAMULAR® 404/604 boards with drainage channels around the board perimeter. Compared to a FOAMULAR® 400/600 board, the FOAMULAR® 404/604 board has the additional advantage of facilitating the flow of water infiltrated under the insulating boards to the waterproofing system's surface and drains.

The FOAMULAR® 404 RB/604 RB boards have as the additional feature of top side channels that help facilitate the flow of water to the system's drains.

FOAMULAR® 404/604 and FOAMULAR® 404 RB/604 RB is ideal for use in both standard and lightweight protected membrane roof systems and can be adhered or loosely applied. It is lightweight, easy to cut and simple to install year round.

Tech-Crete Processors Ltd.

Manufacturer: TECH-CRETE PROCESSORS LTD.

Contact Address: See Membership List Section 1

Product Group: CONCRETE TOPPED INSULATION ROOF PANELS FOR USE IN PROTECTED MEMBRANE ROOF ASSEMBLIES

Country of Origin: CANADACountry of Manufacture: Canada, 1983

DESCRIPTION

The roofing assembly / material information published in the RCABC Roofing Practices Manual does NOT represent a complete set of the manufacturer's published data, nor does it represent a detailed specification. The preparation of a detailed specification is the responsibility of the design authority.

Tech-Crete™ insulated roof panels are 600 mm (2 ft. X 4 ft) composite panels of extruded, expanded, Type 4 CAN/ULC-S701-97 / CGSB-51.20-M87 polystyrene foam, with a factory applied 9.5mm (3/8”) latex modified concrete topping. They are designed as lightweight, self-ballasted, interlocking insulated panels for loose application on top of well drained roof membranes in a low-slope, protected membrane roof assembly.

Tech-Crete panels are tongue and grooved on the longitudinal sides, with a butt edge on the lateral ends. Each board weighs minimum 16.3 kg (36 lb.) creating an insulated panel assembly of about 22 kg/m² (4.5 lb/ft². Panels are available in standard thickness of 50 mm (2”) and 100 mm (4”). In addition, 75 mm (3”) thick panels are available as special order.

BASE INSULATION

The base insulation is Dow Roofmate*, a superior moisture resistant material (absorption less than 1%) with a high thermal resistance value of 0.88 (R 5.0 per inch.), and high compressive strength of 240 kPa (35 psi).

CONCRETE TOPPING The latex modified concrete topping is available in two standard colours, both with a relatively smooth surface:

  • CTI (Concrete Topped) Insulated Roof Panels are manufactured as a standard concrete grey colour.
  • SRI (Solar Reflective) Insulated Roof Panels are manufactured with a full depth white concrete topping.

PERFORMANCE

Latex modified concrete is very durable and chemically resistant. It can be cut with a masonry saw.

  • Concrete topped insulation roof panels can accept occasional maintenance foot traffic, however, they are not intended for use as a patio, plaza deck or construction platform.
  • As with other cementitious products, concrete topped insulation roof panels can become stained by efflorescence if stored unprotected for extended periods. This efflorescence will not be so obvious on SRI panels, however, care in scheduling and handling is required to ensure the white topping remains clean.
  • Concrete topped insulation roof panels are compatible with most commonly used membranes, however, in some cases a slip sheet between membrane and insulation is required to minimize cracking of the concrete topping.

CERTIFICATIONS AND APPROVALS

Complies with the following codes:

  • CCMC - Evaluation Listing #04888-L
  • CAN/ULC S107, Type 4 - standard for Thermal Insulation Polystyrene Boards.
  • CAN/ULC S107-03 Methods of Fire Tests of Roof Coverings

™ Trademark of Tech-Crete Processors Ltd. &ast;Trademark of the Dow Chemical Company

5.3.3 4.3.3 Expanded Polystyrene Foam (EPS)

Click on any one of the tabs to the right to find products by manufacturer

(See also 3.6.5 Expanded Extruded Polystyrene)

Third Party Certification: RGC welcomes and accepts the industry recommendation presented by all EPS manufacturers currently active in the B.C. market to require third party certification of the EPS products meeting CAN / ULC-S701-97 / (CAN / CGSB-51.20-M87) requirements. It is understood that such a certification program requires annual inspections / recertification by an independent testing lab.

Molten polystyrene and a blowing agent are mixed and formed into uniform closed-cell structures (“beads”). These are later expanded up to 40 times by steam in a pre-expander. (The amount of expansion determines the density and, therefore, the thermal conductivity of the final product.) The expanded beads are stabilized in curing bins, fused into a billet in a block mold, and cut into the desired size, shape and thickness. This process produces rigid boards of interconnecting closed cells of densities varying from 16 to 48 kg / cu.m (1 to 3 lb / cu.ft). Expanded polystyrene insulation is commonly referred to as “beadboard” or “popcorn”.

Expanded polystyrene roof insulation is presently manufactured to the CAN / ULC-S701-97 / (CAN / CGSB-51.20-M87) standard and is available in four types, depending on the physical properties of the material. Basically, the strength (tensile, compressive, flexural, and shear) and thermal resistance properties increase, and the water vapour permeance and water absorption properties decrease from Type 1 to Type 4. (For Type 2 and Type 4 see also Section 3.6.5 Extruded Expanded Polystyrene). Note: Type 4 is usually, if not always, extruded.

Expanded polystyrene foam roof insulation is combustible and, when used on steel decks or over a roof that is subject to fire exposure from below, a fire-rated underlayment or thermal barrier (such as gypsum board) may be required between the roof deck and the insulation (consult Building Code and insurance requirements).

Expanded polystyrene foam roof insulation provides the following properties and advantages:

  • Compatible with asphalt
  • Resistant to the effects of moisture
  • Resistant to cell deterioration (durable)
  • Resistant to impact
  • Resistant to thermal conductivity
  • Stable K-value (the thermal conductivity does not change with aging)

The possible disadvantages or precautions involved in the use of expanded polystyrene roof insulation include:

  • Flammable (combustible)
  • Affected by solvents (i.e. adhesives and cleaners used for single-ply membranes)
  • Heat sensitive [requires an insulation overlay (such as fibreboard) to prevent “burnouts” from hot asphalt]
  • Will not retain nails (requires screws and plates)
  • Dimensional instability may result from improper curing at the factory.

Mansonville Plastics (BC) Ltd.

Manufacturer: MANSONVILLE PLASTICS (B.C.) LTD.

Contact Address: See Membership List, Section 1

Product Group: EXPANDED POLYSTYRENE INSULATION

Country of Origin: Canada

Country of Manufacture: Canada

DESCRIPTION

The roofing assembly / material information published in the RCABC Roofing Practices Manual does NOT represent a complete set of the manufacturer’s data or specifications. The preparation of a detailed specification is the responsibility of the design authority.

Korolite and Koroslope expanded polystyrene (EPS) manufactured by Mansonville Plastics (B.C.) Ltd. are rigid roof insulations, suitable for a variety of roof systems, supplied in both flat and sloped profiles. These insulations are closed cell, light weight and, because of their unique cellular structure, assure permanent thermal values.

They are 100% free of ozone depleting CFC’s and HCFC’s and can be recycled.

KOROLITE REGULAR INSULATION

This EPS flat insulation is the most popular insulation and provides the best value for thermal resistance in most roofing applications.

Thermal Resistance : RSI = 0.65 / 25 mm (R Value = 3.75 / in.)
Uses: All conventional roofs for single ply, 2 ply modified and built up roof membranes.
Standards: Conforms to CAN / ULC-S701-97 / (CAN / CGSB-51.20-M87) Type 1 thermal insulation expanded polystyrene.
Standard Sizes: 0.6 m x 1.2 m
(24" x 48")		 1.2 m x 1.2 m
(48" x 48")		 1.2 m x 2.4 m
(48" x 96")
Any thickness that is required to meet thermal requirements.

KOROLITE HD INSULATION

This EPS flat insulation is used when the roof design dictates the need for a greater compressive and thermal value.

Thermal Resistance :RSI = 0.70 / 25 mm (R Value = 4.0 / in.)
Uses:All conventional roofs for single ply, 2 ply modified and built up roof membranes; providing a higher thermal and compressive strength than Korolite Regular Insulation.
Standards:Conforms to CAN / ULC-S701-97 / (CAN / CGSB-51.20-M87) Type 2 thermal insulation expanded polystyrene.
Standard Sizes: 0.6 m x 1.2 m
(24" x 48")		 1.2 m x 1.2 m
(48" x 48")		 1.2 m x 2.4 m
(48" x 96")
Any thickness that is required to meet thermal requirements.

KOROSLOPE TAPERED INSULATION

Koroslope is a modular tapered insulation roof system designed to provide positive drainage of water on flat roofs.

  • Custom computerized design and roof layout drawings are provided.
  • The most commonly used slopes are 1:100 (1/8" in 12") and 1:50 (1/4" in 12")
  • Can be supplied in Type 1 or Type 2
  • Thermal Resistance: same as flat Type 1 or 2 per inch or mm of thickness
  • Meets the same CAN / ULC-S701-97 / (CAN / CGSB-51.20-M87) Type 1 and 2 specification

Uses:

  • To add slope to all conventional roofs for single ply, 2 ply, and built up roof membranes
  • Crickets and backslope to direct water away from walls and projections and to provide slope in valleys, can also be supplied.

Standard Sizes: 1.2 m x 1.2 m (48" x 48")

Plasti-Fab

Manufacturer: PLASTI-FAB, division of PFB Corporation

Contact Address: See Membership List in Section 1.

Product Group: EXPANDED POLYSTYRENE INSULATION

Country of Origin: Canada

Country of Manufacture: Canada

DESCRIPTION

The roofing assembly / material information published in the RGC Roofing Practices Manual does NOT represent a complete set of the manufacturer's published data, nor does it represent a detailed specification. The preparation of a detailed specification is the responsibility of the design authority.

The Plasti-Fab™ PlastiSpan® trademark is applied to a series of moulded expanded polystyrene insulations (EPS) insulation materials manufactured by Plasti-Fab. These insulation materials are lightweight, easy to handle rigid thermal insulation materials. The closed cell structure of PlastiSpan insulation materials does not contain a captive blowing agent - e.g. HCFC’s - and assures constant thermal resistance properties. PlastiSpan insulation is manufactured in a range of densities and forms for use as a component in roofing assemblies.

PLASTISPAN INSULATION (TYPE 1)

PlastiSpan insulation identifies the most widely used PlastiSpan insulation in the family with a nominal density of 16 kg / m3 (1.0 lb / ft3). It provides the best thermal resistance value in most roofing applications.

Thermal Resistance: RSI = 0.65 m2•OC / (W•25 mm)/R Value = 3.75 Ft 2•hr• OF/(BTU•in)
Compressive Resistance @ 10% Deformation: 70 kPa / 10 psi
Uses: •Any conventional roofs with single-ply, two-ply or four-ply membranes where EPS insulation is permitted.
• Under shingles (for cathedral ceilings).
Standards: • Conforms to CAN / ULC-S701-97 / (CAN / CGSB-51.20-M87), Type 1 expanded polystyrene thermal insulation.
• Meets Building Code requirements for foamed plastic thermal insulation.
• CCMC Evaluation Listing 12424-L.
Standard Sizes: 0.6 m x 1.2 m (24" x 48") 0.6 m x 2.4 m (24" x 96")
0.8 m x 1.2 m (32" x 48") 1.2 m x 2.4 m (48" x 96")
1.2 m x 1.2 m (48" x 48")
Any thickness to meet thermal requirements.

PLASTISPAN HD INSULATION (TYPE 2)

PlastiSpan HD insulation identifies a thermal insulation with a normal density approximately 50% higher than PlastiSpan insulation (Type 1) at 24 kg / m3 (1.5 lb / ft3).

Thermal Resistance: RSI = 0.70 m2•OC / (W•25 mm)/R Value = 4.04 Ft 2•hr• OF / (BTU•in)
Compressive Resistance @ 10% Deformation: 110kPa / 16 psi
Uses: •Any conventional roofs with single-ply, two-ply or four-ply membranes where EPS insulation is permitted.
• Under shingles (for cathedral ceilings).
• Used in any roofing applications in which heavier roof loads require a higher compressive strength than PlastiSpan insulation (Type 1).
Standards: • Conforms to CAN / ULC-S701-97 / (CAN / CGSB-51.20-M87), Type 2 expanded polystyrene thermal insulation.
• Meets Building Code requirements for foamed plastic thermal insulation.
• CCMC Evaluation Listing 12425-L.
Standard Sizes: 0.6 m x 1.2 m (24" x 48") 0.6 m x 2.4 m (24" x 96")
0.8 m x 1.2 m (32" x 48") 1.2 m x 2.4 m (48" x 96")
1.2 m x 1.2 m (48" x 48")
Any thickness to meet thermal requirements.

PLASTISPAN INSULATION (TYPE 3)

PlastiSpan insulation (Type 3) identifies a thermal insulation with a nominal density approximately 100% higher than PlastiSpan insulation (Type 1) at 32 kg / m3 (2.0 lb / ft3).


Thermal Resistance: RSI = 0.74 m2•OC / (W•25 mm) / R Value = 4.27 Ft 2•hr• OF / (BTU•in)
Compressive Resistance @ 10% Deformation: 140kPa / 20 psi
Uses: •Any conventional roofs with single-ply, two-ply or four-ply membranes where EPS insulation is permitted.
• Under shingles (for cathedral ceilings).
• Used in any roofing applications in which heavier roof loads require a higher compressive strength than PlastiSpan insulation (Type 1) or PlastiSpan HD insulation (Type 2).
Standards: • Conforms to CAN / ULC-S701-97 / (CAN / CGSB-51.20-M87), Type 3 expanded polystyrene thermal insulation.
• Meets Building Code requirements for foamed plastic thermal insulation.
• CCMC Evaluation Listing 12426-L.
Standard Sizes: 0.6 m x 1.2 m (24" x 48") 0.6 m x 2.4 m (24" x 96")
0.8 m x 1.2 m (32" x 48") 1.2 m x 2.4 m (48" x 96")
1.2 m x 1.2 m (48" x 48")
Any thickness to meet thermal requirements.

PLASTISPAN SLOPED INSULATION

The complete family of PlastiSpan insulation materials is available in both flat and sloped profiles. All roofing experts agree that adding a slope to the top surface of the roof assembly, however small, will provide positive drainage, eliminate pooled water, and can extend the life of the roof assembly. For sloped roofs, Plasti-Fab provides PlastiSpan insulation cut with a taper across the 1.2-rn (48") width. A predetermined layout of the tapered insulation boards is provided by Plasti-Fab in order to include a 1:50 (1/4" in 12") or 1:100 (1/8" in 12") positive slope to the drains.

Special sizes, “crickets”, and back slopes are available; custom computerized design of PlastiSpan sloped insulation boards layout is provided.

5.3.4 4.3.4 Polyisocyanurate Foam

Click on any one of the tabs to the right to find products by manufacturer

Polyisocyanurate is a closed-cell rigid foam material. The insulation boards are manufactured with asphalt-saturated felt, glass fibre or acrylic facer sheets on the top or bottom of the foam core. In some cases the foam core is reinforced with glass fibre or acrylic to provide additional fire resistance and greater dimensional stability.

Polyisocyanurate foamboard roof insulation is presently manufactured to two standards:

  • CAN / ULC S704-01 (CGSB 51-GP-21M) applies to unfaced polyisocyanurate rigid insulation boards intended for applications where the continuous use surface temperature does not exceed +110°C (+230°F). This standard establishes one type (Type 4) and three classes (Class 1, 2 or 3) of polyisocyanurate insulation. The type is determined by the physical properties of the material and the class is determined by its surface burning characteristics.
  • CAN / ULC S704-01 (CAN / CGSB-51.26-M86) applies to faced polyisocyanurate rigid insulation boards intended for applications where the continuous use temperature is within -60°C to +80°C (-76°F to +176°F). This standard establishes four types (Type 1, 2, 3, or 4), four facing categories (Facing 1, 2, 3, or 4), and two surface burning characteristic classifications (surface burning characteristic “a” or “b”). The type is determined by the physical properties of the material, the facing is determined by the product the insulation is foamed between, and the surface burning characteristic is derived from the final product's flame spread classification. RGC Guarantee Standards require that polyisocyanurate insulation manufacturers clearly identify the manufacturing date on product labels.

Polyisocyanurate insulation provides the following properties and advantages:

  • Compatible with asphalt
  • Compatible with roof system components
  • Resistant to the effects of moisture
  • Resistant to cell deterioration
  • Resistant to impact
  • Resistant to thermal conductivity
  • Resistant to fire
  • Resistant to thermal cycling (dimensionally stable)
  • Unaffected by hot asphalt
  • Retains mechanical fasteners

The possible disadvantages or precautions involved in the use of polyisocyanurate foam insulation include:

  • Requires an insulation overlay (fibreboard or retrofit board) to prevent potential asphalt blistering
  • Aged thermal resistance Long Term Thermal Resistance (LTTR) tested to CAN / ULC -S770 should be used for design calculations. Refer to RPM Section 3.6.1.1 quick reference chart for thermal resistance values.
  • Felt skin may change dimensionally if exposed to weathering (provide protection prior to installation)
  • Heavy equipment may compress insulation, causing deflections and de-bonding of the membrane
  • Will not retain nails (requires screws and plates)

Atlas Roofing Corporation

Manufacturer: ATLAS ROOFING CORPORATION

Contact Address: See Membership List, Section 1

Product Group: POLYISOCYANURATE ROOF INSULATION

Country of Origin: USA

Country of Manufacture: USA

DESCRIPTION

The roofing assembly / material information published in the RCABC Roofing Practices Manual does NOT represent a complete set of the manufacturer’s data or specifications. The preparation of a detailed specification is the responsibility of the design authority.

All AC Foam product cores are state-of-the-art, closed-cell polyisocyanurate foam produced through the use of environmentally safe procedures. Polyisocyanurate, the most widely used and accepted foam insulation product in use today, provides superior fire performance characteristics and the ability to retain high R-Values. Designed for use in commercial roof applications. AC Foam products are available in a wide variety of facers, thicknesses and R-Values. Each AC Foam product is manufactured for exceptional strength, using dimensionally stable facers to add toughness to the boards and meet the high quality standards expected from Atlas.

THE TWO ROOFING PRODUCTS PRESENTLY OFFERED ARE:

AC Foam III•Polyisocyanurate core integrally laminated to a specially coated facer (ideal for self-adhered membranes).
AC Foam Supreme•Polyisocyanurate core integrally laminated to a tri-laminate foil facer.

ATLAS AC Foam

Long Term Thermal Resistance (LTTR): RSI value = 1.06 / 25 mm (1") [R Value = 6.0 / 25mm (1")]
Foam Density 32 kg / cu.m (2.0 lb / cu ft.)
Compressive Strength 138 kpa (20 psi)
Uses •AC Foam III: Do not use with hot applied membranes, i.e. coal tar or asphalt
Standards (AC Foam III) Conforms to CAN / ULC S704-01 / CAN / CGSB 51.26-M86
FM-Class 1, I-60, I-90
UL C S-126
Standard Sizes 1.2 m x 1.2 m (48" x 48") for Asphalt or adhesive applied applications
1.2 m x 2.4 m (48" x 96") for Mechanically fastened applications

TAPERED AC FOAM III

Atlas Manufactures AC Foam III in a tapered profile to attain positive drainage while maintaining the highest thermal efficiency in a tapered system. All tapered panels are 4' x 4' in size with standard slopes of 1/8" / ft. with a 1/2" / ft. slopes for crickets. Computerized designs complete with shop drawings are available to the architect design authority.

Carlisle Syntech Canada

Manufacturer: CARLISLE SYNTEC CANADA

Contact Address: See Membership List, Section 1

Product Group: POLYISOCYANURATE ROOF INSULATION

Country of Origin: USA

Country of Manufacture: USA

DESCRIPTION

Polyisocyanurate HP-H is a foam core insulation board covered on both sides with a medium weight fiber- glass reinforced facer. This dimensionally stable, durable insulation offers maximum thermal efficiency. Polyisocyanurate HP-H is recommended for use under Carlisle’s Sure-Seal, Brite-Ply and Sure-Weld Fully-Adhered and Mechanically-Fastened Roofing Systems and the Design “B” Ballasted Roofing System. Carlisle Polyisocyanurate HP-H insulation is UL and FM approved as a system component in certain Carlisle roofing assemblies. Please review the current Carlisle Design and / or Application Specifications for the appropriate use under a Carlisle Roofing System. Polyisocyanurate HP-H is also available in tapered form. The industry follows CAN / ULC-S770 test method for determining a 15-year time-weighted average Long Term Thermal Resistance (LTTR).

TYPICAL PROPERTIES AND CHARACTERISTICS:

Nominal Thickness inches (mm)• 1.0 (25)
LTTR R-Value*• 6.0
LTTR C-Value*• 0.167
T-Load Quantity Sq. Ft. (Sq. M.)• 32,384 (3,009)
Flute Span Ability, in. (mm)• 2-5/8 (67)
Minimum Thickness, in (mm)• 0.95 (24)

PHYSICAL PROPERTIES:

PropertyTest MethodSpecification Limits
Compressive Strength, psi (kPa)ASTM D1621 Procedure AMinimum 20 (138)
Moisture Vapour Transmission, permsASTM C355Maximum 1.0
Foam core Density, lb / ft3 (kg / m3)ASTM D1622Nominal 2.0 (32)
Flame Spread (foam core)ASTM E84Maximum 25
Service Temperature, range if ºF (ºC)- - --100 (-73) to 250 (121)

Carlisle Polyisocyanurate HP-H meets or exceeds ASTM C1289 (Type II, Class 1, Grade 2) and Federal Specification HH-I-1972/2.

Firestone Building Products

Manufacturer: FIRESTONE BUILDING PRODUCTS COMPANY CANADA

Contact Address: See Membership List, Section 1

Product Group: POLYISOCYANURATE ROOF INSULATION

Country of Origin: USA

Country of Manufacture: USA

DESCRIPTION

The roofing assembly / material information published in the RCABC Roofing Practices Manual does NOT represent a complete set of the manufacturer’s data or specifications. The preparation of a detailed specification is the responsibility of the design authority.

FIRESTONE RESISTA

Firestone RESISTA roof insulation consists of a closed-cell polyisocyanurate foam core laminated to a specially coated, inorganic, fibreglass facer. It provides outstanding fire, wind and thermal performance for commercial roofing applications. It can be used with all Firestone Roofing Systems Membrane.


Long Term Thermal Resistance (LTTR): RSI value = 1.06 / 25 mm (1") [R Value = 6.0 / 25mm (1")]
Standards Factory Mutual (FM) approved for Class I insulated steel deck construction (tested to FM 4450 standard)
Foamed plastic for built-up roof covering classified by Underwriters Laboratories of Canada (ULC) as to an external fire exposure only (per ULC S107)
Foamed plastic classified by Underwriters Laboratories of Canada as roof deck construction material with resistance to internal fire exposure for use in Construction No. C8 (tested to CAN / ULC-S126M)
Foamed plastic classified by Underwriters Laboratories of Canada for Fire Resistance Classification (tested to CAN / ULC-S101-M89). See ULC List of Equipment and Material Directory (Vol. III).
Based on current UL, ULC and / or FM test data, Firestone Resista complies with the following model building codes when installed in accordance with UL, ULC and / or FM requirements: BOCA, ICBO, SBCCI, Metro-Dade 92-0930.02 and CAN/ULC- S704-01/ CAN / CGSB 51.26-M86.
Resista is mold resistant as per ASTM D3273 standards.
Standard Sizes 1.2 m x 1.2 m
(4' x 4')		 1.2 m x 2.4 m
(4' x 8')
Thicknesses: 25.4 mm to 101.6 mm (1" to 4")

FIRESTONE RESISTA TAPERED ROOF INSULATIONS

Firestone Tapered Project Management Team offers the architect, consultant and general contractor complete engineered roof design support services.

Standard Sizes 1.2 m x 1.2 m
(4' x 4')		 1.2 m x 2.4 m
(4' x 8')
at standard slopes ranging 1/16" per foot (.5%) to 1/2" per foot (4%)
Boards with slopes of 4.8 mm (3/16") and 9.5 mm (3/8") may be special ordered.
Board thickness ranges from 12.7 mm to 63.5 mm (.5" to 2.5") maximum in one layer.

Hunter Panels

Manufacturer: HUNTER PANELS LLC

Contact Address: See Membership List, Section 1

Product Group: POLYISOCYANURATE ROOF INSULATION

Country of Origin: USA

Country of Manufacture: USA

DESCRIPTION

H-Shield CG:

Polyisocyanurate H-Shield CG is a foam core insulation board covered on both sides with a medium weight fiber-glass reinforced facer. This dimensionally stable, durable insulation offers maximum thermal efficiency. Hunter Panels Polyisocyanurate H-Shield CG insulation is UL and FM approved as a system component in certain roofing assemblies. Polyisocyanurate H-Shield CG is also available in tapered form. The industry follows CAN / ULC-S770 test method for determining a 15-year time-weighted average Long Term Thermal Resistance (LTTR).

TYPICAL PROPERTIES AND CHARACTERISTICS:

Nominal Thickness inches (mm)• 1.0 (25)
LTTR R-Value*• 6.0
LTTR C-Value*• 0.167
T-Load Quantity Sq. Ft. (Sq. M.)• 32,384 (3,009)
Flute Span Ability, in. (mm)• 2-5/8 (67)
Minimum Thickness, in (mm)• 0.95 (24)

PHYSICAL PROPERTIES:

PropertyTest MethodSpecification Limits
Compressive Strength, psi (kPa)ASTM D1621 Procedure AMinimum 20 (138)
Moisture Vapour Transmission, permsASTM C355Maximum 1.0
Foam core Density, lb / ft3 (kg / m3)ASTM D1622Nominal 2.0 (32)
Flame Spread (foam core)ASTM E84Maximum 25
Service Temperature, range if ºF (ºC)- - --100 (-73) to 250 (121)

Hunter Panels Polyisocyanurate H-Shield CG meets or exceeds ASTM C1289 (Type II, Class 1, Grade 2) and Federal Specification HH-I-1972/2.

H-Shield Premier:

Polyisocyanurate H-Shield Premier is a foam core insulation board covered on both sides with a medium weight fiber-glass reinforced facer. This dimensionally stable, durable insulation offers maximum thermal efficiency. Hunter Panels Polyisocyanurate H-Shield Premier insulation is UL and FM approved as a system component in certain roofing assemblies. Polyisocyanurate H-Shield Premier is also available in tapered form. The industry follows CAN / ULC-S770 test method for determining a 15-year time-weighted average Long Term Thermal Resistance (LTTR).

TYPICAL PROPERTIES AND CHARACTERISTICS:

Nominal Thickness inches (mm)• 1.0 (25)
LTTR R-Value*• 6.0
LTTR C-Value*• 0.167
T-Load Quantity Sq. Ft. (Sq. M.)• 32,384 (3,009)
Flute Span Ability, in. (mm)• 2-5/8 (67)
Minimum Thickness, in (mm)• 0.95 (24)

PHYSICAL PROPERTIES:

PropertyTest MethodSpecification Limits
Compressive Strength, psi (kPa)ASTM D1621 Procedure AMinimum 20 (138)
Moisture Vapour Transmission, permsASTM C355Maximum 1.0
Foam core Density, lb / ft3 (kg / m3)ASTM D1622Nominal 2.0 (32)
Flame Spread (foam core)ASTM E84Maximum 25
Service Temperature, range if ºF (ºC)- - --100 (-73) to 250 (121)

Hunter Panels Polyisocyanurate H-Shield Premier meets or exceeds ASTM C1289 (Type II, Class 1, Grade 2) and Federal Specification HH-I-1972/2.

H-Shield Composite:

Polyisocyanurate H-Shield Composite is a foam core insulation board covered on both sides with a medium weight fiber-glass reinforced facer. This dimensionally stable, durable insulation offers maximum thermal efficiency. Hunter Panels Polyisocyanurate H-Shield Composite insulation is UL and FM approved as a system component in certain roofing assemblies. Polyisocyanurate H-Shield Composite is also available in tapered form. The industry follows CAN / ULC-S770 test method for determining a 15-year time-weighted average Long Term Thermal Resistance (LTTR).

TYPICAL PROPERTIES AND CHARACTERISTICS:

Nominal Thickness inches (mm)• 1.0 (25)
LTTR R-Value*• 6.0
LTTR C-Value*• 0.167
T-Load Quantity Sq. Ft. (Sq. M.)• 32,384 (3,009)
Flute Span Ability, in. (mm)• 2-5/8 (67)
Minimum Thickness, in (mm)• 0.95 (24)

PHYSICAL PROPERTIES:

PropertyTest MethodSpecification Limits
Compressive Strength, psi (kPa)ASTM D1621 Procedure AMinimum 20 (138)
Moisture Vapour Transmission, permsASTM C355Maximum 1.0
Foam core Density, lb / ft3 (kg / m3)ASTM D1622Nominal 2.0 (32)
Flame Spread (foam core)ASTM E84Maximum 25
Service Temperature, range if ºF (ºC)- - --100 (-73) to 250 (121)

Hunter Panels Polyisocyanurate H-Shield Composite meets or exceeds ASTM C1289 (Type II, Class 1, Grade 2) and Federal Specification HH-I-1972/2.


IKO Industries Ltd.

Manufacturer: IKO INDUSTRIES LTD.

Contact Address: See Membership List, Section 1

Product Group: POLYISOCYANURATE ROOF INSULATION

Country of Origin : Canada

Country of Manufacture: Canada

DESCRIPTION

The roofing assembly / material information published in the RCABC Roofing Practices Manual does NOT represent a complete set of the manufacturer’s data or specifications. The preparation of a detailed specification is the responsibility of the design authority.

IKO Industries Ltd. is a Canadian manufacturer of polyisocyanurate insulations. The IKOTHERM III insulation panels are manufactured with non-asphaltic inorganic coated glass fiber facers for use in virtually all roof assemblies.

Long Term Thermal Resistance (LTTR): RSI value = 1.05 / 25 mm (1") [R Value = 6.0 / 25 mm (1")]
Compressive Strength 140 kpa [20 lb / sq. in.]
Uses All conventional single-ply, modified and built-up roofing systems
Standards Conforms to CAN / ULC-S704-01 / CAN / CGSB 51.26-M86
FM-Class 1, I-60, I-90
CAN/ULC S-126, S-107
Standard Sizes 1.2 m x 1.2 m
(4' x 4')		 1.2 m x 2.4 m
(4' x 8')
Thicknesses of 25.4 mm to 104.1 mm (1" to 4.1")
The following meet CAN/ULC -S704-01:
Tensile Strength 35 kpa
Flexural Strength (MD/XD) 607/479 kpa
Dimensional Stability 2.0%
Water Vapour Permeance 60ng / Pa*s*m2
Water Absorption 3.5%
Service Temp. Range: min: 40°C to max. 100°C

Johns Manville Corporation

Manufacturer: JOHNS MANVILLE CORPORATION

Contact Address: See Membership List in Section 1.

Product Group: POLYISOCYANURATE ROOF INSULATION

Country of Origin: USA

Country of Manufacture: USA

DESCRIPTION

The roofing assembly / material information published in the RCABC Roofing Practices Manual does NOT represent a complete set of the manufacturer's data. Detailed specification and design assistance is available through the distribution network, our representatives and the manufacturer. The preparation of the final detailed specification for the specific project is the responsibility of the architect / specifier.

Johns Manville Corporation manufactures a variety of polyisocyanurate insulations. The insulation panels are manufactured with flexible facers, trilaminate foil, glassmat, or non-asphaltic inorganic matt facers for use in virtually all roof assemblies.

These insulations are lightweight, easy to handle, and fully compatible with recognized roofing systems, deck types and materials. Their closed-cell structure assures long lasting thermal performance. The same polyisocyanurate foam core formulation is used in all the products manufactured by Johns Manville Corporation.

ENRGY 3 AGF & BARRIER BOARD ISO INSULATION

ENRGY 3 AGF identifies the most widely used insulation using HCFC 141.b in the family of products manufactured by Johns Manville Corporation.

Long Term Thermal Resistance (LTTR): RSI value = 1.06 / 25 mm (1") [R Value = 6.0 / 25 mm (1")]
Compressive Strength 138 kpa nom (173 kpa available) [20 lb / sq. in nom (25 lb / sq. in available)]
Uses All conventional single-ply, modified and built-up roofing systems.
Standards Conforms to CAN / ULC-S704-01 / CAN / CGSB 51.26-M86 (Types 1-4)
FM-Class 1, I-60, I-90
ULC S-126
Standard Sizes 1.2 m x 1.2 m
(4' x 4')		 1.2 m x 2.4 m
(4' x 8')
Thicknesses: 25 mm to 104 mm (1" to 4.1")

TAPERED ENRGY 3 AGF INSULATION

Johns Manville Corporation designs and manufactures tapered polyisocyanurate roof insulation systems, with slopes ranging from 1:200 (1/16" in 12") to 1:25 (1/2" in 12"). The most commonly used slopes are 1:100 (1/8" in 12") and 1:50 (1/4" in 12"). Complimentary computerized design service, as well as the normal “shop drawings” required for application, are available to the architect / specifier from Johns Manville Corporation.

Manufacturer: RMAX, INC.

Contact Address: See Membership List in Section 1.

Product Group: POLYISOCYANURATE INSULATION Country of Origin: USA

Country of Manufacture: USA


DESCRIPTION

The roofing assembly / material information published in the RGC Roofing Practices Manual does NOT represent the complete set of the manufacturer's published data, nor does it represent a detailed specification. Information as available will be provided by Rmax to assist the design professional in his decision process.

Rmax offers a wide variety of roofing insulation products to meet almost every roofing insulation need. Featuring polyisocyanurate foam cores, these products are compatible with the complete range of today’s most popular roofing membranes.

MULTI-MAX FA-3:

Rmax Multi-Max FA is a rigid, foam plastic, thermal insulation board composed of polyisocyanurate foam bonded to glass fiber on each side. This roofing insulation is suitable for use in insulated roofing system constructions utilizing built-up roof, modified bitumen or single-ply membranes and metal panel roofing systems. Multi-Max FA is intended for use in new roofing construction and limited retrofit / recover roofing constructions over steel, wood, non-combustible and certain types of nailable roof decks.

Long Term Thermal Resistance (LTTR): RSI value = 1.06 / 25 mm (1") [R Value = 6.0 / 25 mm (1")]
Uses All conventional single-ply, modified and built-up roofing systems.
Standards Manufactured to conform to CAN / ULC-S704-01 / CAN / CGSB 51.26-M86
Factory Mutual (FM) 4450 Class 1 approval for insulated steel deck construction
Underwriters Laboratories of Canada (ULC) listed as to an external fire exposure only. (ULC S107)
Standard Sizes 1.2 m x 1.2m
(48" x 48")
1.2 m x 2.4 m
(48" x 96")		 Thicknesses: 38 mm to 101 mm (1.5" to 4.0")

MULTI-MAX-3:

Rmax Multi-Max is a rigid, foam plastic, thermal insulation board composed of polyisocyanurate foam bonded to glass fiber mat facers on each side. This roofing insulation is suitable for use in insulated roofing system constructions utilizing built-up roof, modified bitumen or single-ply membranes and metal panel roofing systems. Multi-Max is intended for use in new roofing construction and limited retrofit / recover roofing constructions over steel, wood, non-combustible and certain types of nailable roof decks.

Long Term Thermal Resistance (LTTR): RSI value = 1.06 / 25 mm (1") [R Value = 6.0 / 25 mm (1")]
Uses All conventional single-ply, modified and built-up roofing systems.
Standards Manufactured to conform to CAN / ULC-S704-01 / CAN / CGSB 51.26-M86
Factory Mutual (FM) 4450 Class 1 approval for insulated steel deck construction
Underwriters Laboratories of Canada (ULC) listed as to an external fire exposure only. (ULC S107)
Standard Sizes 1.2 m x 1.2 m
(48" x 48")		 1.2 m x 2.4 m
(48" x 96")
Thicknesses: 38 mm to 102 mm (1.5" to 4.0")

TAPERED THERMAROOF-3:

Rmax Tapered Thermaroof is a rigid, foam plastic, thermal insulation board composed of polyisocyanurate foam bonded to glass fiber facers on each side. The top surface is manufactured with a 1/8", ¼", or ½" per foot slope to provide positive roof drainage. This roofing insulation is suitable for use in insulated roofing system constructions utilizing built-up roof, modified bitumen or single-ply membranes. Tapered Thermaroof is intended for use in new roofing construction and limited retrofit / recover roofing constructions over steel, wood, non-combustible and certain types of nailable roof decks.

Long Term Thermal Resistance (LTTR): RSI value = 1.06 / 25 mm (1") [R Value = 6.0 / 25 mm (1")]
Uses All conventional single-ply, modified and built-up roofing systems.
Standards Manufactured to conform to CAN / ULC-S704-01 / CAN / CGSB 51.26-M86
Factory Mutual (FM) 4450 Class 1 approval for insulated steel deck construction
Underwriters Laboratories of Canada (ULC) listed as to an external fire exposure only. (ULC S107)
Standard Sizes 1.2 m x 1.2 m (48" x 48")
Thicknesses: 19 mm to 89 mm (0.75" to 3.5") with slopes of 1/8", ¼" and ½" per foot. See Rmax data sheets for specific panel dimensions.

RE-COVER BOARD-3:

Rmax Re-Cover Board is a rigid, foam plastic, thermal insulation board composed of polyisocyanurate foam bonded to glass fiber / or glass fiber facers on each side. This roofing insulation is suitable for use in insulated roofing system constructions utilizing built-up roof, modified bitumen or single-ply membranes and metal panel roofing systems. Re-Cover Board may be used in recover type applications where the existing roof system is still sound and firmly attached.


Long Term Thermal Resistance (LTTR): RSI value = 1.06 / 25 mm (1") [R Value = 6.0 / 25 mm (1")]
Uses Recover applications where the existing roof is still sound and firmly attached.
Standards Manufactured to conform to CAN/ULC-S704-01 / CAN / CGSB 51.26-M86
Factory Mutual (FM) 4450 Class 1 approval for insulated steel deck construction. FM listing requires that old roof is left in place and conforms to FM4450.
Standard Sizes 1.2 m x 1.4 m (48" x 96")
Thicknesses: 13 mm to 33 mm (0.5" to 1.3")

THERMAROOF PLUS-3:

Rmax Thermaroof Plus, with the reinforced aluminium foil facers, is an excellent insulation product for use with the loose-laid or mechanically fastened types of single ply membranes or metal panel roofing systems available today. Thermaroof Plus is approved for use in new roofing constructions, and limited retrofit / recover roofing projects over steel, wood, non-combustible and certain types of nailable surfaces.

Long Term Thermal Resistance (LTTR): RSI value = 1.06 / 25 mm (1") [R Value = 6.0 / 25mm (1")]
Uses Loose laid or mechanically attached single ply membranes or metal panel roofing systems.
Standards Manufactured to conform to CAN / ULC-S704-01 / CAN / CGSB 51.26-M86
Factory Mutual (FM) 4450 Class 1 approval for insulated steel deck construction
Underwriters Laboratories of Canada (ULC) listed as to an external fire exposure only. (ULC S107)
Standard Sizes 1.2 m x 2.4 m (48" x 96")
Thicknesses: 38 mm to 102 mm (1.5" to 4.0")

THERMAROOF COMPOSITE-3:

Rmax Thermaroof Composite is a rigid, foam plastic, thermal insulation board composed of polyisocyanurate foam bonded to glass fiber mat facers on one side and a ½" perlite board on the other. This roofing insulation is suitable for use in insulated roofing system constructions utilizing built-up roof or modified bitumen roofing systems. Thermaroof Composite is intended for use in new roofing constructions, and limited retrofit / recover roofing constructions over steel, wood, non-combustible and certain types of nailable surfaces.

Thermal Resistance: RSI value = 0.88 / 25 mm (1") [R Value = 5.1 / 25mm (1")]
Uses All conventional modified and built-up roofing systems.
Standards Manufactured to conform to CAN / ULC-S704-01 / CAN / CGSB 51.26-M86
Factory Mutual (FM) 4450 Class 1 approval for insulated steel deck construction
Underwriters Laboratories of Canada (ULC) listed as to an external fire exposure only. (ULC S107)
Standard Sizes 1.2 m x 1.2 m
(48" x 48")		 1.2 m x 2.4 m
(48" x 96")
Thicknesses: 38 mm to 102 mm (1.5" to 4.0")

RDECK-3:

Rmax Rdeck is a rigid, foam plastic, thermal insulation board composed of polyisocyanurate foam bonded to glass fiber facer on one side and a 1/4" board on the other. This roofing insulation is suitable for use in insulated roofing system constructions utilizing built-up roof or modified bitumen roofing systems. Rdeck is intended for use in new roofing constructions, and limited retrofit / recover roofing constructions over steel, wood, non-combustible and certain types of nailable surfaces.

Thermal Resistance: RSI value = 0.93 / 25 mm (1") [R Value = 5.4 / 25mm (1")]
Uses All conventional modified, built-up, single-ply membrane and metal panel roofing systems.
Standards Manufactured to conform to CAN / ULC-S704-01/ CAN / CGSB 51.26-M86
Factory Mutual (FM) 4450 Class 1 approval for insulated steel deck construction
Standard Sizes 1.2 m x 1.2 m
(48" x 48")		 1.2 m x 2.4 m
(48" x 96")
Thicknesses: 38 mm to 102 mm (1.5" to 4.0")

NAILABLE BASE-3:

Rmax Nailable Base is a highly efficient thermal insulation board composed of a rigid closed cell polyisocyanurate foam core bonded to a 7/16" CDX Plywood or OSB nailing panel on the top surface and a glass fiber / organic mat facer on the other side. Rmax Nailable Base is for use with concrete, slate, or clay roofing tiles. It may also be used with wood shakes and metal panel roofing systems.

Thermal Resistance: RSI value = 0.80 / 25 mm (1") [R Value = 4.66 / 25mm (1")]
Uses Clay, slate or concrete roofing tile systems; wood shakes and metal panel roofing systems.
Standards Manufactured to conform to CAN / ULC-S704-01 / CAN / CGSB 51.26-M86
Factory Mutual (FM) 4450 Class 1 approval for insulated steel deck construction
Standard Sizes 1.2 m x 1.4 m
(48" x 96")
Thicknesses: 38 mm to 115 mm (1.5" to 4.5")

VENTED NAILABLE BASE-3:

Rmax Vented Nailable Base is a composite product made up of a CDX Plywood or OSB nailing surface, furring strips to produce ¾" or greater ventilating space, and a rigid polyisocyanurate foam core. Vented Nailable Base is for use in residential or commercial shingle roofing applications.

Thermal Resistance: RSI value = 0.49 / 25 mm (1") [R Value = 2.86 / 25mm (1")]
Uses Residential or commercial shingle applications.
Standards Manufactured to conform to CAN/ULC-S704-01 / CAN / CGSB 51.26-M86
Standard Sizes 1.2 m x 1.4 m (48" x 96")
Thicknesses: 56 mm to 132 mm (2.2" to 5.2")

Siplast Canada Inc.

Manufacturer: SIPLAST CANADA INC.

Contact Address: See Membership List, Section 1

Product Group: POLYISOCYANURATE ROOF INSULATION

Country of Origin: USA/CANADA

Country of Manufacture: USA/CANADA


PRODUCT DESCRIPTION


The roofing assembly/material information published in the RGC Roofing Practices Manual does NOT represent a complete set of manufactureer's data or specifications. The preparation of a detailed specification is the responsibility of the design authority.

Paratherm and Paratherm K are state of the art closed cell polyisocyanurate foam insulation products that provide superior R value insulation characteristics and fire resistance. Paratherm and Paratherm K offer two types of facers for use in commercial and industrial roof system applications. The facers used provide increased dimension stability as compared to organic facers. Paratherm and Paratherm K are available in a wide variety of thickness from 25mm (1") to over 100mm (4"). All products are produced to high exacting standards that meet CAN/ULC/CGSB and FM protocols.


Product Types

Paratherm K - Non asphaltic inorganic facer

Paratherm - Specialty coated facer ideal for self adhered membrane application


Product Details

Long Term Thermal Resistance (LTTR): RSI Value=1.06/25mm (1") [R Value = 6.0/25mm (1")]
Compressive Strength: Paratherm - 138kpa (20 lb psi)
Paratherm K - 140 kpa (20lb psi)
Uses: Paratherm - Do no use with hot applied membranes
Paratherm K - 140 kpa (20 lb psi)
Standard Sizes: 1.2m x 1.2m (48" x 48") for asphalt or adhesive applications
1.2m x 2.4m (48" x 96") for mechanically attached systems Standards (Paratherm K): Conforms to CAN/ULC-s704.01/CAN/CGSB 51.26-M86 FM Class 1, I-60, I-90, CAN/ULC S-126,S-107

Soprema Inc.

Manufacturer: SOPREMA INC.

Contact Address: See Membership List, Section 1

Product Group: POLYISOCYANURATE ROOF INSULATION

Country of Origin: USA

Country of Manufacture: USA

DESCRIPTION

The roofing assembly / material information published in the RGC Roofing Practices Manual does NOT represent a complete set of the manufacturer’s data or specifications. The preparation of a detailed specification is the responsibility of the design authority.

Sopraiso A cores are state-of-the-art, closed-cell polyisocyanurate foam produced through the use of environmentally safe procedures. Polyisocyanurate, the most widely used and accepted foam insulation product in use today, provides superior fire performance characteristics and the ability to retain high R-Values. Designed for use in commercial roof applications. Sopraiso A is available in 25 mm (1"), 37 mm (1.5"), and 50 mm (2") thicknesses. Sopraiso A is manufactured for exceptional strength, using dimensionally stable facers to add toughness to the boards and meet high quality standards.

SOPRAISO A

Polyisocyanurate core integrally laminated to a specially coated facer (ideal for self-adhered membranes).

Long Term Thermal Resistance (LTTR): RSI value = 1.06 / 25 mm (1") [R Value = 6.0 / 25mm (1")]>
Foam Density: 32 kg / cu.m (2.0 lb / cu ft.)
Compressive Strength 138 kpa (20 psi)
Uses Do not use with hot applied membranes, i.e. coal tar or asphalt
Standards Conforms to CAN / ULC S704-01 / CAN/ CGSB 51.26-M86
FM-Class 1, I-60, I-90
UL C S-126
Standard Sizes 1.2 m x 1.2 m (48" x 48") for Asphalt or adhesive applied applications
1.2 m x 2.4 m (48" x 96") for Mechanically fastened applications
5.3.5 4.3.5 Fibreboard Roof Insulation

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Fibreboard insulation is composed of wood, cane, or other vegetable fibres and waterproofing binders. A water slurry containing the wood fibres and waterproofing binders is deposited onto a moving screen. The water drains through the screen and the remaining mass is heated in an oven or dryer to produce the finished product. Fibreboard roof insulation is produced in several forms:

  • Plain
  • Impregnated with asphalt or petroleum based paraffin
  • Coated with asphalt

Fibreboard Roof Insulation that is adhered in a roof assembly with hot asphalt or asphaltic-based adhesives must have an asphalt coating on the top and bottom surfaces (minimum coated two sides) to meet RGC Guarantee Standards. Fibreboard for use as roofing insulation is manufactured to meet or exceed the requirements of CAN / ULC-S706 (Insulating Fibreboard), Type I (Roof Board).

Fibreboard roof insulation provides the following properties and advantages:

  • Compatible with asphalt
  • Compatible with most roof system components
  • Resistant to thermal conductivity
  • Resistant to cell deterioration (durable)
  • Resistant to impact
  • Resistant to thermal cycling (dimensionally stable)
  • Unaffected by asphalt application temperatures (no overlay required)
  • Stable K-value (the thermal conductivity does not change with aging)
  • Retains roofing nails

The possible disadvantages or precautions involved in the use of fibreboard insulation include:

  • Flammable (Combustible)
  • Absorbs moisture (protect from the effects of weathering)
  • Low thermal values
  • Organic in nature and will rot on exposure to moisture.

Building Products of Canada Corp.

  • Petroleum Paraffin-impregnated fibreboard conforming to CAN / ULC - S706-09

IKO Industries Ltd.

  • Asphalt-impregnated coated fibreboard conforming to CAN / ULC - S706-09

Western Louiseville Fibreboard Inc.

  • Petroleum Paraffin - Natural Fibreboard conforming to CAN / ULC - S706-09
  • Petroleum Paraffin - High Density natural Fibreboard conforming to CAN / ULC - S706-09
  • Asphalt Coated (6 sides) Natural Fibreboard conforming to CAN / ULC - S706-09
  • Asphalt and Wax Impregnated Fibreboard conforming to CAN / ULC - S706-09
  • Asphalt and Wax Impregnated High Density Fibreboard conforming to CAN / ULC - S706-09
  • Securpan - Fire Resistant Fibreboard conforming to CAN / ULC - S706-09
  • Securpan - Asphalt Coated (one side) Fire Resistant Fibreboard conforming to CAN / ULC - S706-09
5.3.6 4.3.6 Perlitic

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Perlite ore is a volcanic glass with a natural water content characteristic. When this ore is heated to approximately +930oC (+1700oF) the water vaporizes and the ore expands into glass spheroids. The expanded perlite ore may be mixed into a water slurry formulation containing cellulose fibre, a small amount of asphalt, and sometimes starch. The slurry is then dried into boards and cut to size. The top surface is usually treated to minimize bitumen absorption.

Perlitic roof insulation provides the following properties and advantages:

  • Compatible with asphalt
  • Compatible with most roof system components
  • Resistant to thermal conductivity
  • Resistant to fire
  • Resistant to impact
  • Resistant to thermal cycling (dimensionally stable)
  • Unaffected by asphalt application temperatures
  • Stable K-value
  • Retains roofing nails

The possible disadvantages or precautions involved in the use of perlitic roof insulation include:

  • Absorbs moisture (protect from the effects of weathering)
  • Heavy equipment may compress boards causing possible debonding of the insulation from the deck
  • Extremely friable (crushable); proper compounding and correct grading is important
  • Relatively low thermal values.


Johns Manville Corporation

Manufacturer: JOHNS MANVILLE CORPORATION

Contact Address: See Membership List, Section 1

Product Group: PERLITIC ROOF INSULATION

Country of Origin: USA

Country of Manufacture: USA

DESCRIPTION

The roofing assembly / material information published in the RCABC Roofing Practices Manual does NOT represent a complete set of the manufacturer’s data or specifications. The preparation of a detailed specification is the responsibility of the design authority.

FESCO BOARD

Fesco Board is a homogeneous board composed of expanded perlite, a volcanic ore, blended with selected binders and fibers. The perlite particles are subjected to intense heat, which causes them to expand approximately fifteen times their original size. The resulting glass-like beads contain air cells, which provide high insulating efficiency.

The top surface of Fesco Board is sealed with Top-Loc coating to ensure positive adhesion of a built-up or modified bitumen membrane. The minimum recycled content is 25% by weight.

Fesco Board has excellent fire resistance and is approved for use in Factory Mutual approved constructions. When applied over rigid decks, Fesco Board’s high laminar tensile strength resists damage from on-the-job and maintenance traffic, offers an excellent substrate for all roofing membranes, and effectively bridges flute openings in metal decks. Because of its perlite composition and low water absorption rates, Fesco Board is dimensionally stable.

Thermal Resistance RSI = .49 / 25 mm (R value = 2.78 / inch)
Uses Fesco Board is a rigid, thermal roof insulation for use in built-up, modified bitumen and some single ply roofing systems. It may be applied using hot bitumen and / or mechanical fasteners. It may be used as a primary or overlayment board.
Standards CSA Standard A284-1976
CAN / CGSB 51.10-92
Underwriters Laboratory Canada
Standard Sizes 0.6 m x 1.2 m
(24" x 48")		 1.2 m x 1.2 m
(48" x 48")		 1.2 m x 2.4 m
(48" x 96")
Thicknesses - 18 mm (3/4"), 25 mm (1"), 38 mm (1.5"), 50 mm (2")
Compressive Strength CSA A284-1976 34 psi
Density: CSA A284-1976 13 pcf

TAPERED FESCO BOARD

Tapered Fesco is supplied in .61 m x 1.22 m (24" x 48") or 1.22 m x 1.22 m (48" x 48") boards, custom cut and tapered to 5.2 mm / m (1/16" / ft.), 10.4 mm / m (1/8" / ft.), 20.8 mm / m (1/4" / ft.), or 41.6 mm / m (1/2" / ft.) slope depending on the need. Custom sizes are available. Johns Manville’s Tapered Design Center has computerized design service, as well as shop drawings for application for the architect and roofing contractor.

5.3.7 4.3.7 Mineral Fibre Roof Insulation

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Mineral fibre roof insulations are composed of rock fibres with a thermoset resin and surfaced with glass fibre scrim on the top surface. These boards can provide a suitable surface for directly mopped bituminous membranes, however, a minimum one layer fibreboard overlay is recommended.

Mineral fibre roof insulation may provide the following properties and advantages:

  • compatible with asphalt
  • compatible with most roof systems
  • resistant to thermal conductivity
  • excellent resistance to the effects of moisture
  • resistant to fire
  • resistant to cell deterioration (non-corrosive)
  • resistant to thermal cycling (dimensionally stable)
  • stable K value (thermal conductivity does not change with age)
  • conforms to substrate irregularities
  • can be hot mopped or mechanically fastened

The possible disadvantages or precautions involved in the use of mineral fibre roof insulation:

  • heavy equipment may compress the insulation and cause delamination of the membrane
  • not intended for use under high traffic deck surfaces

Mineral fibre roof insulation should meet or exceed CAN / ULC S126.M86.

Roxul, Inc.

Manufacturer: Roxul INC. Contact Address: See Membership List, Section 1

Product Group: TOPROCK DD STONE WOOL ROOF INSULATION

Country of Origin: Denmark

Country of Manufacture: Canada

DESCRIPTION

The roofing assembly / material information published in the RGC Roofing Practices Manual does NOT represent a complete set of the manufacturer’s data or specifications. The preparation of a detailed specification is the responsibility of the design authority.

TOPROCK DD STONE WOOL Insulation is a monolithic dual density stone wool fibre insulation made from basalt rock and slag. It is a non-combustible and fire resistant, is extremely dimensionally stable with excellent acoustic properties. It is water repellent yet vapour permeable and made from natural and recycled products, is impact resistant, and its thermal value and excellent physical properties make it an exceptional choice for use in the commercial roofing market in both new and re-roof applications as a primary insulation or an overlay insulation. Toprock Stone wool contributes significant advantages to long term performance of roofing membrane assemblies.

TOPROCK DD & DD PLUS

Toprock DD is dual-density mineral wool with a rigid upper surface for durability and enhanced strength. It is intended for use as a primary insulation in commercial, industrial, and institutional new and re-roof applications. It can be mechanically fastened or hot mopped in a full bed of bitumen. Toprock DD PLUS has an integral bitumen coating applied to allow for torch applied, hot applied or cold applied adhered membrane assemblies direct to the insulation without the use of a coverboard.

Thickness - mm (inches) - 25 (1”) to 150 (6”) in 12mm (1/2”) increments except no 3” (only 3.25 R 12)

Dimensions - m (ft) - 1.2 x 1.2 (4’ x 4’)

Long Term Thermal Resistance - Stable - ASTM C518 (C 177) - RSI Value - 0.65 (R 3.7) per 25mm (1”)

Compressive Strength - ASTM C 165

  • Top Layer at 10% - kPa (psi) 139 (20.2 psi)
  • Top Layer at 25% - kPa (psi) 252 (37.0 psi)
  • 75mm (3”) thickness - kPs (psi) 71 (10.3 psi)
  • 75mm (3”) thickness - kPa (psi) 103.5 (15psi)

Density (kg/m3) - Formed as a monolithic structure - ASTM C612-00 - Actual

  • Top Layer - 220 (13.75 lb/ft3)
  • Bottom - Layer - 160 (10.0 lb/ft3)

Dimensional Stability - Linear Shrinkage (% at 177C (350F) - ASTM C 356 - 0.01%

WaterAbsorption (%) - ASTM C 209 - < 1.0 - Water Vapour Sorption - ASTM C 1104 - 0.03

Roxul Inc. may modify the composition of its products without prior notice. Consequently orders will be filled according to the latest specifications.

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Soprema Inc.

Manufacturer: SOPREMA INC.

Contact Address: See Membership List, Section 1

Product Group: SOPRAROCK STONE WOOL ROOF INSULATION

Country of Origin: Denmark

Countryof Manufacture: Canada

DESCRIPTION

The roofing assembly / material information published in the RGC Roofing Practices Manual does NOT represent a complete set of the manufacturer’s data or specifications. The preparation of a detailed specification is the responsibility of the design authority.

SOPRAROCK STONE WOOL is a mono or dual density mineral wool fibre insulation made from basalt rock and slag. It is a non-combustible, has excellent fire resistant, and is an extremely dimensionally stable insulation with excellent acoustic properties. It is a water repellent yet vapour permeable insulation made from natural and recycled products, is impact resistant, and its thermal value and excellent physical properties make it an exceptional choice for use in the commercial roofing market in both new and re-roof applications as a primary insulation or an overlay insulation. Soprarock Stone wool contributes significant advantages to long term performance of roofing membrane assemblies.

SOPRAROCK MD & SOPRAROCK MD PLUS

Soprarock MD is mono-density mineral wool for use as a cover board for other insulations or over-top applications and can be mechanically fastened or hot mopped in a full bed of bitumen. Soprarock MD PLUS has an integral bitumen coating factory applied to allow for torch applied, hot applied or cold applied adhered membrane assemblies direct to the insulation.

Thickness - mm (inches) - 25 (1”)

Dimensions - m (ft.) - 1.2 x 1.2 (4’ x4’)

Long Term Thermal Resistance - Stable - ASTM C 518 (C 177) RSI Value - 0.62 (R-3.5) per 25mm (1”)

Compressive Strength - 25mm (1”) thickness - ASTM C165 - 84 kPa (12.1 psi)

Density (kg/m2) - ASTM C 612-00 - Actual - 176 (11 lb/ft3)

Dimensional Stability, linear shrinkage (% @ 177 C [350 F]) - ASTM C 356 - 0.01%

Water Absorption (%) - ASTM C 209 - < 1.0

SOPRAROCK DD & DD PLUS

Soprarock DD is dual-density mineral wool with a rigid upper surface for durability and enhanced strength. It is intended for use as a primary insulation in commercial, industrial, and institutional new and re-roof applications and can be mechanically fastened or hot mopped in a full bed of bitumen. Soprarock DD PLUS has an integral bitumen coating applied to allow for torch applied, hot applied or cold applied adhered membrane assemblies direct to the insulation without the use of a coverboard.

Thickness - mm (inches) - 25 (1”) to 150 (6”) in 12mm (1/2”) increments

Dimensions - m (ft) - .12 x 1.2 (4’ x 4’)

Long Term Thermal Resistance - Stable - ASTM C518 (C 177) - RSI Value - 0.65 (R 3.7) per 25mm (1”)

Compressive Strength - ASTM C 165

  • Top Layer at 10% - kPa (psi) 139 (20.2 psi)
  • Top Layer at 25% - kPa (psi) 252 (37.0 psi)
  • 75mm (3”) thickness - kPs (psi) 71 (10.3 psi)
  • 75mm (3”) thickness - kPa (psi) 103.5 (15psi)

Density (kg/m3) - Formed as a monolithic structure - ASTM C612-00 - Actual

  • Top Layer - 220 (13.75 lb/ft3)
  • Bottom - Layer - 160 (10.0 lb/ft3)

Dimensional Stability - Linear Shrinkage (% at 177C (350F) - ASTM C 356 - 0.01%

Water Absorption (%) - ASTM C 209 - < 1.0

Water Vapour Sorption - ASTM C 1104 - 0.03

Soprema Inc. may modify the composition of its products without prior notice. Consequently orders will be filled according to the latest specifications.

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5.3.8 4.3.8 Lightweight Insulating Concrete

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See manufacturer information on the following tab.

Siplast Canada Inc.

Manufacturer: SIPLAST CANADA INC.

Contact Address: See Membership List, Section 1

Product Group: LIGHTWEIGHT INSULATING CONCRETE

Country of Origin: France, USA, Germany, Poland, Denmark

Year First Installed: BC: 2003

Canada: 1995

Foreign: 1935

DESCRIPTION

The roofing assembly / material information published in the RCABC Roofing Practices Manual does NOT represent a complete set of the manufacturer’s data or specifications. The preparation of a detailed specification is the responsibility of the design authority.

NVS and Insulcel are composite systems that combine the unique properties of Lightweight insulating concrete (LWIC) and premium expanded polystyrene (EPS) foam insulation. The polystyrene insulation board can be installed in thicknesses necessary for high insulation values and in a stair stepped fashion, facilitating a positive slope to drain.

Poured 25 mm (1") for NVS and 50 mm (2") for Insulcel thickness over EPS insulation, these LWIC systems have been engineered for use over non-slotted or slotted galvanized corrugated metal decks (Insulcel), structural concrtete substrates and, where appropriate, over existing roofs in recover applications. These systems provide high performance solutions to industry concerns that include moisture resistance, high compressive strength, dimensional stability, fire and wind resistance, stable R-values and environmental safety. As a reusable resource LWIC also provides LEED values and is re-roofable.

PRODUCTS

NVS concrete is a 1:3.5 volume ratio of Portland cement to patented NVS Concrete Aggregate.

INSULCEL concrete is a mixture of Insulcel-PB pregenerated cellular foam and Portland cement / water slurry.

Dry Density: NVS - 560 kilograms per cubic meter (Kg/cu.m), (35 lbs. pcf)
Insulcel - 480 kilograms per cubic meter (Kg/cu.m), (30 lbs. pcf)
Min. Compressive Strenght: NVS - 2070 kilopascals (kPa), (300 psi)
Insulcel - 1380 kilopascals, (kPa), (200 psi)
Uses:
  • Recover and existing roof system (consultant validated).
  • Compensate for irregularities in existing substrates - slope to drain.
  • High compressive strength reduces potential damage from foot and other traffic.
  • Monolithic Mass effect improves long term membrane performance.
  • LEED value.
  • Save disposal costs and space in landfills.
  • Temperature Restrictions - do not install below 0ºC or 32ºF.
  • Do not apply during or in the event of rain.
  • Improved contractor installation performance.
Standards:

Factory Mutual

  • NVS 1-90 and 1-150
  • Insulcel RT 1-90 and 1-195

Metro-Dade Product Control No. 02-0411.01 and 03-320.13 ASTM C332, ASTM C578

5.4 4.4 Insulation Coverboards

Insulation coverboards are installed over insulation, when required by the RoofStar Guarantee Standards. For Guarantee Standards concerning Insulation Coverboards, refer to C6 in this section of the RPM.

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Insulation overlays are used to separate the roof membrane from the primary insulation, usually for one of two reasons:

  • to prevent the insulation from affecting the performance of the roof membrane
  • to prevent the roof membrane and / or the method of application from affecting the insulation

The insulation can affect the performance of the roof membrane in the following ways:

  • the insulation may be incompatible with the membrane, resulting in a loss of physical properties
  • different coefficients of thermal expansion may result in membrane splits / cracks.

The roof membrane and / or the method of application can affect the insulation in the following ways:

  • the insulation may not be capable of withstanding asphalt application temperatures and may “burn-out”
  • some insulations will not accommodate direct torch-applied membranes
  • insulations that are too “soft” may result in delamination or damage to the membrane or insulation when exposed to heavy loads or traffic
  • the solvents and adhesives used for flexible membranes may adversely affect the insulation.

NOTE: All hot asphalt-adhered asphaltic membranes (built-up roofing, modified bitumen, etc.) require an insulation overlay over heat sensitive insulations and heat insensitive foamed insulation. RGC Guarantee Standards for heat sensitive insulations require a two-layer overlay board for a five (5) or ten (10) year Guarantee. RGC requires the use of a two-layer overlay board over heat sensitive insulations in all cases, and also requires a single-layer overlay board application over heat insensitive insulations for all hot asphalt-adhered membranes. For single-ply, non-asphaltic membrane roofing systems, the membrane manufacturer should be consulted for proprietary options.

  • Secure Shield HD Plus Cover Board
  • Isogard HD Cover Board
  • Asphalt Overlay Board
  • Asphalt Overlay Board
  • Asphalt Overlay Board
  • ½" (13 mm) Retro-Fit™ Board Perlitic Roof Board
  • Invinsa™ Roof Board
  • MF - Protect Board Composite
  • MonoBoard
  • MonoBoard+
  • Gypsum - Fibre Roof Board
  • Glass - Mat Roof Board
  • Asphalt Overlay Board
  • Fire Resistant Wood Fibreboard with a Factory Applied Base Sheet
  • Xpress Board Mineral Wool Fibre Insulation with a Factory Applied Base Sheet
  • Soprarock MD
  • Soprarock MD+
  • Asphalt Coated (6 sides) Natural Fibreboard conforming to CAN / ULC - S706-02
  • Asphalt and Wax Impregnated Fibreboard conforming to CAN / ULC - S706-02
  • Asphalt and Wax Impregnated High Density Fibreboard conforming to CAN / ULC - S706-02
  • Securpan Asphalt coated (one side) Fire Resistant Fibreboard conforming to CAN / ULC - S706-02
5.4.1 4.4.1 Insulation Joint Tape

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Where RGC Guarantee Standards or the roof system specification calls for taping fibreboard or insulation joints, the following tabs for manufacturers and their approved products applies:

  • Perma-Tape
  • Therma-Tape
  • Roof Tape
  • No. 15 perforated asphalt felt conforming to CSA A123.3M]
  • Breather-type membrane sheathing conforming to CAN / CGSB-51.32-M77

5.5 4.5 Membranes

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Styrene butadiene styrene (SBS) polymer modifiers are “thermoplastic elastomers”. They are elastomers, which behave similar to both thermoplastics and thermosets (or “elastomerics”). Thermoplastics soften with heat and harden when cooled, no cross-linking (vulcanization) of molecules occurs, and they tend to exhibit “plastic” properties. Thermosets are materials in which cross-linking of the molecules occurs and they tend to exhibit “elastomeric” or rubber-like properties.

Simply stated, flexible polybutadiene “chains” interconnect with the glass-like polystyrene “blocks” and, when cooled, the resulting network behaves as if the molecules were cross-linked. The process is repetitive in that the networks may be disrupted by heat or solvents but will reform upon cooling or removal of the solvents.

Bitumens modified with SBS can display improved physical and mechanical properties. The improved properties are only possible if the SBS polymer is properly dispersed within a suitable bitumen. A well dispersed, homogeneous polymer mixture will form a continuous rubber network throughout the bitumen.

SBS modification of bitumens can impart the following changes in properties:

  • increased softening point
  • improved low temperature flexibility
  • greater elasticity
  • improved aging characteristics.
Manufacturer:

1 FIRESTONE BUILDING PRODUCTS

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Country of Origin: U.S.A.

Year First Installed
BC: 1998
Canada: 1993
Foreign: 1993

DESCRIPTION

Firestone developed prefabricated sheet membranes in 1987 and introduced SBS Modified Bitumen’s in 1991, producing an elastomeric blend with exceptional elongation recovery characteristics. Reinforcing mats consisting of polyester, fibreglass and a combination thereof, are saturated and coated with SBS elastomer modified bitumen to produce roof membranes designed for use in a variety of roof systems. Firestone manufacturers a variety of membranes, each of which is designed to meet the requirements of a variety of roof constructions. The “SBS” and “SBS FR” membrane series are designed to meet the structural, climatic and design needs of a range of applications. These membranes are available with a variety of surfacing materials including; ceramic granules, polypropylene film or sand. Depending on the back surfacing, the membranes may be installed in hot asphalt, in asphalt cold process adhesive, by heat welding or peel and stick self-adhesive. Ceramic granules for cap sheets are available in several colours. If high reflectivity is required, UltraWhite membranes are covered with granules having an initial solar reflectance of 0.72 and an initial thermal emittance ranging from 0.84 to 0.92. The solar reflectance index (SRI) of the UltraWhite membranes range from 87 to 89 as per ASTM E 1980-01.

PART 1 - GENERAL
The roofing assembly / material information published by the RCABC Roofing Practices Manual does NOT represent a complete set of the manufacturer’s published data, nor does it represent a detailed specification. The preparation of a detailed specification is the responsibility of the design authority.
1.1 SYSTEM DESCRIPTION
.1 Two-ply roof membranes: The first ply consists of a base sheet, which may be applied in hot asphalt, asphalt cold process adhesive, fully heat welded, mechanically attached or self-adhered with a heat welded cap sheet. The second ply consists of a cap sheet applied in hot asphalt, cold process adhesive or by heat welding.
1.2 COMPOSITION
.1 SBS Compound: When a compatible bitumen is modified by the addition of SBS polymer, the combination provides the desirable properties necessary to ensure the long term performance of the completed roof system. Compatibility of the components, proper mixing and finished product preparation are ensured by production quality control and follow-up testing which ensures long term performance. These properties may be obtained only with a suitable SBS / bitumen compatibility and proper preparation.
The compound in a roofing sheet provides:
  • Waterproofing
  • Elasticity
  • Aging performance
  • Flexibility
.2 Reinforcement: The reinforcement of an SBS modified sheet provides enhancement to the compound. Polyester mat provides puncture resistance, toughness and dimensional stability upon which an SBS roof system depends for performance. A roof system relies upon the combination of compound flexibility and reinforcement toughness to resist hail and foot traffic damage. Polyester allows the SBS membrane to flex and recover while retaining its strength and toughness.
.3 Aging: The aging properties of an SBS modified sheet are dependent on SBS / bitumen blend and the chemistry of the system. All roof systems experience heat exposure. Quality SBS modified bitumen blends age much more slowly than conventional blown asphalt.
.4 Thickness: The aging properties of an SBS modified sheet are influenced by thickness. Thicker sheets age more slowly. Heat welded membranes should have a minimum back coating thickness of 1 mm asphaltic compound.
1.3 DELIVERY, STORAGE AND HANDLING
.1 All materials must be stored out of the weather in a clean, dry area in the original packages with the manufacturer’s labels intact.
.2 All materials must be stored on end at a minimum of 4ºC (40ºF) and a maximum of 60ºC (140ºF).
.3 If materials are stored temporarily, they must be stored on end, elevated from the roof surface or the ground, on a pallet and covered by a light colored opaque tarp.
.4 Materials stored on the roof must be stored in a safe matter not to exceed the allowable live load of the storage area.
.5 Care must be taken when transporting and handling Firestone SBS rolls to avoid physical damage.
.6 Isolate Firestone modified bitumen sheets from contact with waste products, petroleum products, grease, oil and animal fats.
1.4 SITE CONDITIONS
.1 Slope: Roof slopes which exceed ½" in 12" (4.2%) require the following:
.1 The building owner or the design professional intending to specify back-nailing should consider geographic location, specific job conditions, accepted area application practices and the type and grade of materials specified when creating an actual specification for a project.
.2 When the slope of the roof exceeds ½" in 12" (4.2%) and hot asphalt attachment is specified, Firestone requires Firestone SBES Mopping Asphalt or CSA A123.4, Type III (3) asphalt be used.
.3 Contact Firestone Roof Systems Solutions Group for additional requirements regarding roof slopes over 3" in 12" (25%).
.4 For roof slopes up to and including ½" in 12" (4.2%), the side laps can be installed parallel or perpendicular to the slope.
.5 For roof slopes greater than ½" in 12" (4.2%), the membrane must run parallel to the slope and be back-nailed.
.6 For non-nailable decks and nailable decks with insulation, the cap sheet must be cut to conform to the spacing of nailers. Using capped nails, nail the end lap across the width of the sheet, with the first nail spaced ¾" (19 mm) from the leading edge of the sheet. The remaining nails are to be spaced approximately 3" (76.2 mm) on centre. The nails should be staggered across the width of the nailer. Firestone fasteners and plates may be used in lieu of cap nails. Four per end lap are required.
.7 For nailable decks with no insulation, the cap sheet must be cut to conform to nailer spacing. Using capped nails or Firestone fasteners and plates, nail the end lap across the width of the sheet, with the first nail spaced ¾" (19 mm) from the leading edge of the sheet. The remaining nails are to be spaced approximately 3" (76.2 mm) on centre. The nails should be staggered across the width of the nailer. Firestone fasteners and plates may be used in lieu of cap nails. Four per end lap are required.
.8 Cap nails must have 1" (25.4 mm) diameter heads with steel head only. The shank must be minimum 11 gauge (2.3 mm) annular ring or spiral shank and be FM approved.
BACK-NAILING REQUIREMENTS FOR SLOPED ROOFS
Cap Sheet Attachment Base Sheet Attachment < ½"
(4.2%)		 > ½" < 1"
(4.2 - 8.3%) 		>1" < "
(8.3 - 16.7%) 		>2" <3"
(16.7 - 25%)
Gravel Surfaced BUR Hot asphalt     NFR NFR Nailers
20" oc		 Nailers
12" oc
Smooth Coated BUR Hot asphalt     NFR NFR NFR Nailers
20" oc
Any Applicable Smooth or Granule Firestone SBS Cap Hot asphalt Any Applicable Firestone Base Sheet Hot Asphalt or Mechanically Attached NFR Nailers
32" oc		 Nailers
32" oc		 Nailers
16" oc
Full Length Sheet Full Length Sheet % Length Sheet
Any Applicable Smooth or Granule Firestone Cap Sheet Firestone Multi-Purpose MB Cold Adhesive Any Applicable Firestone Base Sheet Heat Fused, Hot Asphalt, Mechanically Attached or Firestone Multi-Purpose MB Cold Adhesive NFR NFR NFR Nailers
32" oc
Full Length Sheet
Any Applicable Smooth or Granule Firestone Cap Sheet Heat fused Any Applicable Firestone Base Sheet Self-Adhesive, Heat Fused, Hot Asphalt, Mechanically Attached or Firestone Multi-Purpose MB Cold Adhesive NFR NFR NFR Nailers
32" oc
Full Length Sheet
Refer to Firestone MB-LS-9 for detailed back-nailing requirements.
NFR - No fastener required at this slope.
.2 Wood decks - plywood, OSB and wood plank:
.1 Firestone requires that wood planks be yellow pine with a minimum ¾" (19.1 mm) thickness. The installation of a ply of sheathing paper (by others) is required under the nailed base sheet.
.2 Firestone requires that plywood have a minimum thickness of ½" and that OSB decks have a minimum 7/16" (10.5 mm) thickness.
.3 The Firestone base sheet or cap sheet may not be adhered directly to a wood substrate. The cap sheet and / or the base sheet must be adhered to an acceptable insulation, coverboard or a mechanically attached base sheet.
.4 When mechanically attaching insulation or base sheets, wood decks are required to have a fastener pullout of 300 lb. (1.8 kN) per fastener.
.5 When nailing a base sheet, wood decks are required to have a fastener pullout of 40 lb. (0.24 kN) for cap nails per fastener.
BASE SHEET AND INSULATION ATTACHMENT FOR PLYWOOD, OSB AND WOOD PLANK ROOF DECKS
Acceptable Fasteners for Insulation
and Base Sheet Attachment		 Acceptable Insulation Adhesives
Firestone Heavy Duty
Firestone All Purpose
Belted Fasteners		 1" (25.4 mm) into or through deck Firestone ISO SPRAY
Firestone ISO FIX
Firestone ISO Twin Pack
.3 Steel decks:
.1 Firestone recommends that the steel deck be a minimum 22 gauge (0.76 mm).
.2 Factory Mutual Research - Approved steel decks are currently available in 22 gauge (0.0295", 0.794 mm), 20 gauge (0.0358", 0.909 mm) and 18 gauge (0.0474", 1.204 mm) thick sheet with 1.5" (38 mm) deep corrugations. The corrugations (ribs) are cold rolled in the sheets. The deck has a 6" (152 mm) module, that is, the ribs are 6" (152 mm) on centre. All fastening approvals and recommendations are based on this profile. (Approved and recommended spacings are such that the fasteners will engage the top flange of the deck). Another common configuration is 3" (76 mm) deep deck, which usually has an 8" (203 mm) module.
.3 When mechanically attaching insulation, steel decks are required to have a fastener pullout of 300 lb. per fastener.
.4 The Firestone base sheet or cap sheet may not be adhered directly to a steel deck. The cap sheet and / or the base sheet must be adhered to an acceptable insulation or coverboard.
.5 On steel decks, the edges of insulation boards running parallel with the deck are required to be supported by the top flange of the metal deck. The board should have a minimum 1.5" (38.1 mm) bearing on the steel deck flange. Cantilevering insulation boards over deck flutes can fracture insulation boards, reducing the support for the membrane, making it susceptible to puncture.
.6 If present, it is required that phenolic insulation be removed. Once removed, a visual inspection of the deck condition and other components is required. It is the building owner or his design professional’s responsibility to determine the condition of the deck. All deteriorated components must be replaced as necessary.
INSULATION ATTACHMENT FOR STEEL DECKS
Acceptable Insulation Fasteners Acceptable Insulation Adhesives
Firestone Heavy Duty
Firestone All Purpose
Belted Fasteners		 ¾" (19 mm) through deck Firestone ISO SPRAY
Firestone ISO FIX
Firestone ISO Twin Pack
.4
.1 Chemical Incompatibility
SBS modified bitumen products are not compatible with coal tar pitch and not resistant to oil and petroleum products.
.2 Roof Deck Overlay
Acceptable roof deck overlays include plywood, Dens Deck or a minimum No. 40 glass-ply felt (CSA A123.2-M, Type CF).
.3 Insulations
Modified bitumen can be used with most common insulations used for roofing and installed according to RGC Guarantee Standards.
.4 Minimum Asphalt Temperature
The minimum temperature for mopping asphalt is +205ºC (+400ºF) at the point of application.
.5 Adhesive Application
Adhesives are intended to adhere the membrane to the substrate or as inter-ply adhesive to adhere membranes to themselves.
1.5 STANDARDS AND APPROVALS
(for specific membranes or assemblies consult Firestone)
.1 American Society for Testing and Materials: D6163 & D6164 (Grade, Type and Class vary with membrane).
.2 Underwriters Laboratories: Class A, B, C.
.3 Underwriters Laboratories of Canada: Referenced to cUL.
.4 Factory Mutual: Class 1 Fire and I-90 or greater.
1.6 MANUFACTURER’S SERVICES
.1 Applicator Training: Firestone membranes are applied by approved applications.
.2 Technical Service: Technical representatives are available for consultation and field training; owners, architects and engineers are assisted in the selection and proper use of materials by technical representatives.
.3 Specification / Drawings: Complete specifications and detail drawings are available upon request and on the Firestone website.
PART 2 - PRODUCTS
2.1

1.1 ROOF MEMBRANES

Products Sheet
Thickness (mm)		 Reinforcement
Type		 Mass
(kg / m2)		 Description
BASE SHEETS
SBS Base 2.2 Fibreglass 2.6 Base sheet for use in hot or cold 2-ply systems
SBS Poly Base 2.3 Polyester 2.7 Base sheet for use in hot or cold 2-ply systems
SBS Premium Base 2.3 Fibreglass Scrim 2.8 High tensile base sheet
SBS Poly Torch Base 3 Polyester 3.6 Torch applied base sheet for use in 2-ply systems
SBS Glass Torch Base 3 Fibreglass 3.5 Torch applied base sheets in 2 ply systems
BaseGard SA 1.5 Fibreglass 1.2 Heat activated, self-adhered base for 2-ply systems with a heat welded cap
GRANULE SURFACED CAP SHEETS
SBS Cap 3.8 Polyester 4.4 Cap sheet for use in hot or cold 2-ply systems
SBS FR Cap 3.8 Polyester 4.4 Cap sheet for use in hot or cold 2-ply systems
SBS Torch 3.8 Polyester 4.4 Torch applied cap sheet for use in 2-ply systems
SBS FR Torch 4.1 Polyester 4.4 Torch applied FR cap sheet for use in 2-ply systems
SBS Premium 4.1 Polyester 4.6 Premium cap sheet for use in hot or cold systems
SBS Premium FR 4.1 Polyester 4.6 Premium fire retardant cap for use in hot or cold
SBS Premium FR Torch 4.1 Polyester 4.7 Premium torch applied fire retardant cap sheet
SMOOTH SURACED CAP SHEETS
SBS Smooth 3.6 Polyester 2.1 Smooth surfaced SBS sheet for use as a cap, base or inter-ply sheet to be applied in hot asphalt or cold process adhesive


ASPHALT ADHESIVES

Multi-Purpose MB Cold Adhesive
Cold process adhesive for use when installing Firestone asphalt SBS and sand backed APP products in multi-ply systems.
Multi-Purpose MB Flashing Cement
Cold process flashing adhesive for use when installing Firestone asphalt SBS and sand backed APP products to vertical surfaces and flashing details.
Firestone SEBS Mopping Asphalt
For use in Firestone built-up roofing systems as the primary waterproofing, as an inter-ply adhesive in SBS modified bitumen roofing systems, Polyiso insulation attachment and construction of bituminous vapour retarders. It is

MISCELLANEOUS PRODUCTS

AcryliTop PC-100 Firestone AcryliTop PC-100 is a reflective coating to be used over all granule surfaced SBS and smooth BUR Firestone asphalt roof membrane systems.

Acrylic Base Coat for Asphalt Acrylic Base adheres tenaciously to asphalt surfaces and provides a base for AcryliTop PC-100 reflective coating.

PART 3 - EXECUTION
3.1 PREPARATION
.1 Apply roofing materials over clean, dry surfaces in accordance with good roofing practices of the RGC.
.2 Ensure that moisture and contaminates are completely removed from the substrate prior to membrane application.
.3 Prime all metal flashings to be installed in the membrane and allow primer to dry prior to installation.
.4 Use only compatible primers and adhesive, mastics or sealants.
.5 Provide adequate protection against fire, particularly when using propane torch-applied membranes.
.6 Torch base sheets to approved substrates only.
3.2 INSULATION
.1 Mechanically fasten insulation over nailable decks, in accordance with RGC Guarantee Standards.
3.3 APPLICATION INSTRUCTIONS FOR A TWO-PLY SYSTEM
.1 Beginning at the low point of the roof, apply the membrane base sheet to the substrate using a minimum side lap of 3" (76 mm) and an end lap of 6" (150 mm). Stagger end joints. Terminate the base sheet at the top of the cant strip. Do not adhere base sheet to cant strip.
.2 Beginning at the low point of the roof, fully adhere the cap sheet to the base sheet. Side laps must be a minimum of 3" (76 mm) and end laps must be a minimum of 6" (150 mm). Position base sheet laps so that the distance between base sheet laps and cap sheet laps shall not be less than 12" (300 mm).
.3 Stagger end laps from course to course so that at no end lap will be closer than 12" (300 mm) from the preceding and succeeding end lap.
.4 Provide a smooth application, free of air pockets, wrinkles, fishmouths or tears.
3.4 JOB SITE CONSIDERATIONS
.1 During the construction process, the roofing contractor is responsible for ensuring that all components of the Firestone roof system, including the finished areas are protected from damage, including, but not limited to:
1.1 Damage that may result from the continued construction process.
1.2 Discharges such as petroleum products, greases, oils (mineral and vegetable), animal fats and other by-products.
1.3 Direct contact with continuous steam or heat sources when the in-service temperature is in excess of 60ºC (140ºF).
.2 All safety regulations required by agencies having jurisdiction must be followed.
.3 Refer to the Firestone Technical Information Sheet "Recommended Guidelines for Working on an Occupied Building" for specific guidelines when installing adhesives or asphalt products on an occupied building.
.4 Cold weather conditions:
4.1 When the outside temperature is below 4.4ºC (40ºF), installation of the Firestone roof system may required additional application precautions:
  • For a minimum of 24 hours before installation, adhesives and sealants should remain in an environment between 15.5ºC (60ºF) and 26.6ºC (80ºF).
  • Materials should be used within four hours of removal from a heated storage area. If materials area not used within that time period, they should be returned to the heated storage area until the temperature of the material returns to the temperature of the heated storage are. Typically, this is 24 hours.
  • Certain products may be damaged when allowed to freeze. Do not use any products that have been frozen without written permission from Firestone.
  • Refer to the product Firestone Technical Information Sheet (TIS) for application and temperature restrictions.
4.2 For additional information and guidelines, see the Firestone Asphalt Roofing Application Guide and the CRCA Roofing and Waterproofing Manual.
3.5 ASPHALT PRODUCTS
.1 Assure that all health and safety measures are followed when installing hot asphalt to protect the installers as well as the occupants of the building. Assure compliance to all building codes and safety regulations when using hot asphalt.
.2 Asphalt for installing the flashings and / or the roof membrane base sheet, base plies and cap sheets must be Firestone SBES Mopping Asphalt or either CSA A123.4, Type III (3) or Type II (2). Asphalt selection must be suitable for roof slope. All asphalt must be tested in accordance with ASTM D 312 and be certified by the supplier that it meets the minimum requirements for the specific type.
2.1 Mopping asphalt must never be heated above the flashpoint temperature.
2.2 Mopping asphalt must never be heated above the finished blowing temperature for more than 4 hours.
.3 Asphalt Primer: Asphalt primer must meet the requirements of ASTM D 41.
.4 When hot asphalt is required, Firestone requires that Firestone SBES Mopping Asphalt or CSA A123.4, Type III (3) asphalt be used.
  • In all SBS systems.
  • Where the slope exceeds ½" in 12" (4.2%).
.5 Asphalt properties may change when stored at high temperatures for long periods of time. Asphalt may become harder or may experience what is known as “fallback”. Fallback is the degradation of the asphalt to the point that its physical properties (i.e. softening point) deteriorate which could then cause roof slippage. To reduce the chances of fallback, the following recommendations should be implemented:
5.1 Use higher softening point asphalt.
5.2 Decrease the kettle temperature as much as possible, while maintaining the minimum application temperature.
5.3 Use material as quickly as possible, thus reducing exposure time.
5.4 Insulate all lines and equipment used to transport asphalt.
Manufacturer:

1 GAF

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Country of Origin: U.S.A.

Country of Manufacture: U.S.A.

Year First Installed
B.C.: 2002
Canada: 2002

DESCRIPTION GAF’s SBS membranes consist of a polyester mat impregnated on both sides with an SBS modified bitumen compound. The non-woven polyester fabric and glass mat used in GAF’s membranes provides a highly elastic body with excellent tensile strength. The high percentage of plasticizing resins in the bitumen compound ensures heat resistance, low temperature flexibility, aging endurance, and workability.

The GAF membranes are fully adhered with hot asphalt; modified bitumen adhesives or heat welded using a propane torch (Ruberoid® SBS Heat-Weld™ membranes only) to prepared surfaces.

PART 1 – GENERAL

The roofing assembly/material information published in the RCABC Roofing Practices Manual does NOT represent a complete set of the manufacturer’s published data, nor does it represent a detailed specification. The preparation of a detailed specification is the responsibility of the design authority.

1.1 SYSTEM DESCRIPTION
.1 Mop applied roofing membrane consisting of a base sheet and cap sheet, separately applied in full, uniform moppings of hot steep roofing asphalt; apply to any prepared roof substrate or roofing insulation suitable for hot applied roofing asphalt, or to a mechanically attached base sheet.
.2 Cold applied roofing membrane consisting of a base sheet and a cap sheet, separately applied in modified bitumen adhesives; apply to any prepared roof substrate or roofing insulation suitable for modified bitumen adhesives, or to a mechanically attached base sheet.
.3 Torch applied roofing membrane consisting of a base sheet and a cap sheet, separately applied using a proprietary propane torch. Base sheet to flame sensitive substrates are moped applied or mechanically fastened to the prepared substrate or insulation.
.4 Range of application: new construction or reproofing; flat to vertical (consult GAF for specific slope requirements.
1.2 DELIVERY, STORAGE, AND HANDLING
.1 Store GAF roofing membranes in a dry place and stacked on end to prevent damage to the selvage edge.
.2 Store rolls on a pallet, securely covered to prevent contact with moisture.
.3 When ambient temperatures are below 0°C (32°F): keep rolls in a heated area; install quickly without allowing to become cold; do not drop rolls when cold.
1.3 SITE CONDITIONS
.1 Slope limitations:
  • Minimum recommended slope: 1:50 (1/4" in 12")
  • Mechanical fastening required over: 1:16 (3/4" in 12")
  • Consult GAF for slopes over: 1:4 ( 3" in 12")
.2 Application temperature:
  • Minimum ambient temperature: +4°C (+40°F)
  • Maximum ambient temperature: +38°C (+100°F)
.3 Chemical incompatibilities: generally those that affect roofing asphalt
1.4 STANDARDS AND APPROVALS (consult GAF for specific membranes or assemblies)
.1 Underwriters Laboratories: Class A, B and C Flame Resistance, “Roofing Materials and Systems Directory”, 2001 Edition.
.2 Factory Mutual: Class 1 and Class I-90 (consult Factory Mutual Research Approval Guide for additional assemblies and uplift ratings)
.3 Canadian General Standards Board: CGSB 37-GB-56M
.4 Other: Metro-Dade, SWL, SBCCI, CIBC, CABO
.5 Underwriters Laboratories of Canada – Standard CAN / ULC-S107
1.5 MANUFACTURER’S SERVICES
.1 Local GAF Commercial Specialists
.2 Specifications and drawings available from application and specification manual
.3 Seminars: Conducted as scheduled or upon request.
.4 Contractor Services Department available for technical questions and documentation.


PART 2 –

1.1 PRODUCTS CHART

NOMINAL NOMINAL REINFORCEMENT
PRODUCT THICKNESS WEIGHT WEIGHT DESCRIPTION
mm kg/m² g/m²
Ruberoid® Mop (Smooth) 4 4.3 170 Hot mop or cold adhesive applied, smooth surface; both sides, membrane, for single or two ply systems.
Ruberoid® Mop (Granule) 4 4.46 170 Hot mop or cold adhesive applied, smooth bottom and mineral surfaced top membrane, for single or two ply systems
Ruberoid® Mop 170FR (Granule) 5 4.38 170 Hot mop or cold adhesive applied, smooth bottom and mineral surfaced top membrane, for single or two ply systems
Ruberoid® Mop Plus (Granule) 4 4.46 250 Hot mop or cold adhesive applied, smooth bottom and mineral surfaced top membrane, for single or two ply systems
Ruberoid® Mop FR (Granule) 4 4.48 250 Hot mop or cold adhesive applied, smooth bottom and mineral surfaced top membrane for single or two ply systems.
Ruberoid® 20 (Smooth) 2.25 2.81 105 Hot mop or cold adhesive applied, smooth surface; both sides, membrane, for single or two ply systems.
Ruberoid® 30 (Granule) 3.81 4.19 95 Hot mop or cold adhesive applied, smooth bottom and mineral surfaced top membrane, for single or two ply systems.
Ruberoid® 30 FR (Granule) 3.66 4.17 105 Hot mop or cold adhesive applied, smooth bottom and mineral surfaced top membrane, for single or two ply systems.
Ruberoid® Modified Base Sheet (Smooth) 2.65 2.91 95 Hot mop or cold adhesive applied, smooth surface; both sides, membrane, for single or two ply systems.
Ruberoid® SBS Heat-Weld™ (Smooth) 2.1 4.3 105 Torch applied, smooth surface; both sides, 25 membrane, for single or two ply systems.
Ruberoid® SBS Heat-Weld™ (Smooth) 4.17 4.69 215 Torch applied, smooth surface; both sides, membrane, for single or two ply systems.
Ruberoid® SBS Heat-Weld™ and (Granule) 4.09 4.41 215 Torch applied, smooth bottom mineral surfaced top membrane, for single or two ply systems.
Ruberoid® SBS Heat-Weld™ and 170FR (Granule) 3.94 4.61 215 Torch applied, smooth bottom mineral surfaced top membrane, for single or two ply systems.
Ruberoid® SBS Heat-Weld™ Plus (Granule) 4.39 5.07 265 Torch applied, smooth bottom and mineral surfaced top membrane, for single or two ply systems.
Ruberoid® SBS Heat-Weld™ Plus FR (Granule) 4.39 4.88 265 Torch applied, smooth bottom and mineral surfaced top membrane, for single or two ply systems.
2.1 ACCESSORIES
Gafglas® #75 Base Sheet Asphalt-saturated fibreglass base sheet.
Gafglas® #80 Ultima Base Sheet Asphalt-saturated fibreglass base sheet.
Gafglas® Stratavent® Eliminator™ Nailable Base Sheet Fiberglass reinforced, bottom side granule surfaced venting base sheet
Gafglas® Stratavent® Eliminator™ Perforated Base Sheet Fiberglass reinforced, bottom side granule surfaced perforated venting base sheet
Gafglas® Ply IV Asphalt-saturated fibreglass ply sheet.
Gafglas® FlexPly™ VI Asphalt-saturated fibreglass ply sheet.
Mweld® Standard M Vent Pre-flashed spun aluminum roof vent
Mweld® Adjustable M Vent Pre-flashed two piece unit consisting of a spun aluminum base and a flexible EPDM upper boot
Mweld® One Way M Vent Pre-flashed spun aluminum one way roof vent
Mweld® M Drain Pre-flashed spun aluminum or copper roof drain with gravel guard, strainer cap and waterproofing plumbing seal attached.
Mweld® Pre-Flashed Lead Jack Pre-flashed plumbing vent (lead jack)
Mweld® M Scupper Pre-flashed 24 ga. Galvanized steel through-wall roof drain. Also available upon request, made from aluminum, copper, or stainless steel.
Mweld® M-Curb System A structural urethane outer shell curb with a pourable urethane sealant that is used in place of conventional metal pitch pans.
2.2 ANCILLARY PRODUCTS
The selection or omission of roof insulations, vapor retarder, expansion / control joints, etc. are design matters which remain the responsibility of the architect, engineer, or owner and are in no way the responsibility of GAF.
.1 Insulation: the following are approved for use with the specified membrane
  • Polyisocyanurate CAN / CGSB-51.26-M86
  • Perlite: ASTM C-728
.2 Primer: Matrix™ 307 Asphalt Primer conforming to CGSB 37-GP-9Ma
.3 Adhesives:
  • Matrix™ 101 System Pro SBS Adhesive
  • Matrix™ 102 Select SBS Adhesive
  • Matrix™ 103 Standard Cold Lap Adhesive
  • Matrix™ 105 System Pro SBS Sure Grip Adhesive
  • Matrix™ 201 System Pro SBS Cement
  • Matrix™ 202 Select SBS Flashing Cement
  • Matrix™ 203 Standard Plastic Roof Cement
  • Matrix™ 204 Standard Wet / Dry Roof Cement
  • Matrix™ 205 System Pro SBS Sure Grip Flashing Cement
.4 Mechanical Fasteners: Drill Tec™ fastenersManufacturer: GAF

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.1 EXPOSED MEMBRANE, UNINSULATED
Slope Limitation: 1:4 (3" in 12") Consult membrane manufacturer for installation at higher slopes
In-Service Performance: Min.: -10°C (+14°F)
Temperature of the Min.: -18°C (0°F)
Membrane: Min.: <-18°C (0°F)
Max.: +50°C (+122°F)

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Wood / plywood Wood decks require a separation layer/base sheet. Prime concrete surfaces to be directly adhered with bituminous materials. Steel decks require overlay board sufficient to span the flutes.
Concrete
Steel
Separation Sheet Gafglas® #75 Mechanically fasten over wood and nailable decks.
Gafglas® #80 Ultima™
Stratavent® Eliminator™ Nailable
Asphalt Type III Type III permitted on slopes up to 1:24 (1/2" in 12").
Type IV Type IV required on slopes over 1:24 (1/2" in 12").
SINGLE-PLY MEMBRANE:
Roof Membrane Ruberoid® Mop Granule Asphalt or adhesive applied, single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® Mop 170 FR
Ruberoid® Mop Plus
Ruberoid® Mop FR
Ruberoid® 30
Ruberoid® 30 FR Torch applied (SBS Heat-Weld membranes only), single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® SBS Heat-Weld™ Granule
Ruberoid® SBS Heat-Weld™ 170 FR
Ruberoid® SBS Heat-Weld™ Plus
Ruberoid® SBS Heat-Weld™ Plus FR
TWO-PLY MEMBRANE:
Base Sheet Gafglas® #75 Asphalt or adhesive applied, single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Gafglas® #80 Ultima™
Stratavent® Eliminator™ Nailable
Stratavent® Eliminator™ Perforated Torch applied (SBS Heat-Weld membranes only), single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® Mop Smooth
Ruberoid® 20
Ruberoid® SBS Heat- Weld™ 25
Ply Sheet (where required) Gafglas® Ply IV Asphalt or adhesive applied, single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Gafglas® FlexPly™ VI
Cap Sheet Ruberoid® Mop Granule Asphalt or adhesive applied, single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® Mop 170 FR
Ruberoid® Mop Plus
Ruberoid® Mop FR
Ruberoid® 30
Ruberoid® 30 FR
Ruberoid® SBS Heat-Weld™ Granule Torch applied (SBS Heat-Weld membranes only), single ply membranes, over prepared substrate or over wood decks.
Weld™ 170 FR
Ruberoid® SBS Heat-Weld™ Plus
Ruberoid® SBS Heat-Weld™ Plus FR
Surfacing (where required) Gravel Smooth surfaced cap sheet requires pour coat and gravel
Flashing Membrane Ruberoid® Mop Granule Asphalt or adhesive applied, single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® Mop 170 FR
Ruberoid® Mop Plus
Ruberoid® Mop FR
Ruberoid® 30 Torch applied (SBS Heat-Weld membranes only), single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® 30 FR
Ruberoid® SBS Heat-Weld™ Granule
Ruberoid® SBS Heat-Weld™ 170 FR
Ruberoid® SBS Heat-Weld™ Plus
Ruberoid® SBS Heat-Weld™ Plus FR
TWO-PLY SELF-ADHERING MEMBRANE:
Base Sheet Liberty SBS SA Base Sheet Self-Adhering base sheet applied over prepared substrate as a first ply of a two-ply system on steel or wood decks.
Cap Sheet Liberty SBS SA Cap Sheet Self-Adhering Cap sheet applied over Liberty SBS
Liberty SBS SA FR Cap sheet SA Base sheet as the second ply of a two-ply roof system on steel or wood decks.

Manufacturer: GAF

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.2 EXPOSED MEMBRANE, INSULATED
Slope Limitation: 1:4 (3" in 12") Consult membrane manufacturer for installation at higher slopes.
In-Service Performance: Min.: -10°C (+14°F)
Temperature of the Min.: -18°C (0°F)
Membrane: Min.: <-18°C (0°F)
Max.: +50°C (+122°F)

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Wood / plywood Wood surfaces require a separation layer / base sheet. Prime concrete surfaces to be directly adhered with bituminous materials. Steel decks require overlay board sufficient to span the flutes.
Concrete
Steel
Separation Sheet Gafglas® #75 Mechanically fasten over wood decks.
Gafglas® #80 Ultima™
Stratavent® Eliminator™ Nailable
Vapor Retarder Requirement and placement determined by the design authority
Insulation Polyisocyanurate A fibreboard or perlite overlay is required over heat sensitive foam insulations. A mechanically fastened base sheet may be required for torched membranes.
Perlite
High Density Fiberboard
Insulation Overlay Perlite Where required, install according to RGC Guarantee Standards.
High Density Fiberboard
Gafglas® #75
Gafglas® #80 Ultima™
Stratavent® Eliminator™ Nailable
Stratavent® Eliminator™ Perforated
Asphalt Type III Type III permitted on slopes up to 1:24 (1/2" in 12").
Type IV Type IV required on slopes over 1:24 (1/2" in 12").
SINGLE-PLY MEMBRANE:
Roof Membrane Ruberoid® Mop Granule Asphalt or adhesive applied, single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® Mop 170 FR
Ruberoid® Mop Plus
Ruberoid® Mop FR
Ruberoid® 30
Ruberoid® 30 FR
Ruberoid® SBS Heat-Weld™ Granule Torch applied (SBS Heat-Weld membranes only), single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® SBS Heat-Weld™ 170 FR
Ruberoid® SBS Heat-Weld™ Plus
Ruberoid® SBS Heat-Weld™ Plus FR
TWO-PLY MEMBRANE:
Base Sheet Gafglas® #75 Asphalt or adhesive applied, single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Gafglas® #80 Ultima™
Stratavent® Eliminator™ Nailable
Stratavent® Eliminator™ Perforated Torch applied (SBS Heat-Weld membranes only), single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® Mop Smooth
Ruberoid® 20
Ruberoid® SBS Heat-Weld™ 25
Ply Sheet Gafglas® Ply IV Asphalt or adhesive applied, single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
(where required) Gafglas® FlexPly™ VI
Cap Sheet Ruberoid® Mop Granule Asphalt or adhesive applied, single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® Mop 170 FR
Ruberoid® Mop Plus
Ruberoid® Mop FR
Ruberoid® 30
Ruberoid® 30 FR
Ruberoid® SBS Heat-Weld™ Granule Torch applied (SBS Heat-Weld membranes only), single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® SBS Heat-Weld™ 170 FR
Ruberoid® SBS Heat-Weld™ Plus
Ruberoid® SBS Heat-Weld™ Plus FR
Surfacing (where required) Gravel Smooth surfaced cap sheet requires pour coat and gravel
Flashing Membrane Ruberoid® Mop Granule Asphalt or adhesive applied, single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® Mop 170 FR
Ruberoid® Mop Plus
Ruberoid® Mop FR
Ruberoid® 30
Ruberoid® 30 FR
Ruberoid® SBS Heat-Weld™ Granule Torch applied (SBS Heat-Weld membranes only), single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® SBS Heat-Weld™ 170 FR
Ruberoid® SBS Heat-Weld™ Plus
Ruberoid® SBS Heat-Weld™ Plus FR
TWO-PLY SELF-ADHERING MEMBRANE:
Base Sheet Liberty SBS SA Base Sheet Self-Adhering base sheet applied over prepared substrate as a first ply of a two-ply system on steel or wood decks.
Cap Sheet Liberty SBS SA Cap Sheet Self-Adhering Cap sheet applied over Liberty SBS
Liberty SBS SA FR Cap sheet SA Base sheet as the second ply of a two-ply roof system on steel or wood decks.

Manufacturer: GAF

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.3 PROTECTED MEMBRANE AND MODIFIED PROTECTED MEMBRANE ROOF ASSEMBLIES (PMR AND MPMR)
Slope Limitation: 1:4 (3" in 12") Consult membrane manufacturer for installation at higher slopes
In-Service Performance: Min.: -10°C (+ 14°F)
Temperature of the Min.: -18°C ( 0°F)
Membrane: Min.: <-18°C ( 0°F)
Max.: +50°C (+122°F)

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Wood / plywood Wood surfaces require a separation layer / base sheet.
Concrete Prime concrete surfaces to be directly adhered with bituminous materials. Steel decks require overlay board sufficient to span the flutes.
Steel
Separation Sheet Gafglas® #75 Mechanically fasten over wood decks.
Gafglas® #80 Ultima™
Stratavent® Eliminator™ Nailable
Vapor Retarder Requirement and placement determined by the design authority
Insulation Polyisocyanurate Under membrane in MPMR. A fibreboard or perlite overlay is required over heat sensitive foam insulations. A mechanically fastened base sheet may be required for torched membranes.
Perlite
High Density Fiberboard
Insulation Overlay Perlite Where required, install according to RGC Guarantee Standards.
High Density Fiberboard
Gafglas® #75
Gafglas® #80 Ultima™
Stratavent® Eliminator™ Nailable
Asphalt Type III Type III permitted on slopes up to 1:24 (1/2" in 12").
Type IV Type IV required on slopes over 1:24 (1/2" in 12").
SINGLE-PLY MEMBRANE:
Roof Membrane Ruberoid® Mop Granule Asphalt or adhesive applied, single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® Mop 170 FR
Ruberoid® Mop Plus
Ruberoid® Mop FR
Ruberoid® 30
Ruberoid® 30 FR
Ruberoid® SBS Heat-Weld™ Granule Torch applied (SBS Heat-Weld membranes only), single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® SBS Heat-Weld™ 170 FR
Ruberoid® SBS Heat-Weld™ Plus
Ruberoid® SBS Heat-Weld™ Plus FR
TWO-PLY MEMBRANE:
Base Sheet Gafglas® #75 Asphalt or adhesive applied, single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Gafglas® #80 Ultima™
Stratavent® Eliminator™ Nailable
Stratavent® Eliminator™ Torch applied (SBS Heat-Weld membranes only), over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® Mop Smooth
Ruberoid® 20
Ruberoid® SBS Heat-Weld™ 25
Ply Sheet Gafglas® Ply IV Asphalt or adhesive applied, single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
(where required) Gafglas® FlexPly™ VI
Roof Membrane Ruberoid® Mop Granule Asphalt or adhesive applied, single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® Mop 170 FR
Ruberoid® Mop Plus
Ruberoid® Mop FR
Ruberoid® 30
Ruberoid® 30 FR
Ruberoid® SBS Heat-Weld™ Granule Torch applied (SBS Heat-Weld membranes only), single ply membranes, over prepared substrate or over mechanically fastened separation sheet on steel or wood decks.
Ruberoid® SBS Heat-Weld™ 170 FR
Ruberoid® SBS Heat-Weld™ Plus
Ruberoid® SBS Heat-Weld™ Plus FR
Filter Fabric 1 g / m2 (3 oz / yd2) black polyester or polypropylene Loose laid
Ballast Gravel In accordance with GAF application and specification requirements. Must comply with ASTM D-1863.
Pavers
Where pavers are to be used, they must be a minimum of 61 cm x 61 cm (2’ x 2’). For a 1.22 m (4’) perimeter of the roof, pavers must weigh a minimum of 1 kg / m2 (20 lb / ft2) and as determined by the building owner or its consultants.
Manufacturer:

1 GARLAND CANADA INC.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANE

Country of Origin: Canada

Country of Manufacture: Canada, USA, United Kingdom

Year First Installed
B.C.: 1990
Canada: 1987
Foreign: 1974

DESCRIPTION The Garland Company is a leading manufacturer and distributor of high-performance roofing and flooring solutions for commercial, industrial, and public properties. We offer our industry’s most comprehensive customer support services, including a unique Roof Asset Management Program (RAMP®). Our innovative products and facility management solutions have been extending the life cycle of buildings like yours for over a century.

PART 1 - GENERAL

The roofing assembly / material information published by the RGC Roofing Practices Manual does NOT represent a complete set of the manufacturer's published data, nor does it represent a detailed specification. The preparation of a detailed specification is the responsibility of the design authority.

1.1 SYSTEM DESCRIPTION
.1 Two-ply roof membranes: the first ply consists of a base sheet; applied with hot asphalt, cold adhesive fully heat welded, with adhesives and heat welded seams, self-adhered with self-stick products; the second ply consists of a cap sheet applied with hot asphalt, cold adhesive or heat welding.
1.2 PROJECT CONDITIONS
.1 Do not apply roofing insulation or membrane to damp deck surface.
.2 Do not expose materials subject to water or solar damage in quantities greater than can be weatherproofed during same day.
.3 All slopes greater than 2:12 (17%) require back-nailing to prevent slippage of the ply sheets. Use ring or spiral-shank one (1) inch (25 mm) cap nails, or screws and plates at a rate of one (1) fastener per ply (including the membrane) at each insulation stop. Place insulation stops as per RGC Guarantee Standards (Section 2.1.1) On non-insulated systems, nail each ply directly into the deck at the rate specified above. When slope exceeds 2:12 (17%), install all plies parallel to the slope (strapping) to facilitate backnailing. Install four (4) additional fasteners at the upper edge of the membrane when strapping the plies.
1.3 MANUFACTURER’S SERVICES
.1 Applicator training: Garland membranes are applied by GARLAND APPROVED RCABC MEMBER APPLICATOR ONLY.
.2 Technical service: technical representatives are available for consultation and field training; owners, architects, and engineers are assisted in the selection and proper use of Garland materials by technical representatives.
.3 Specification / Drawings: complete specifications and detail drawings are available upon request.
PART 2- PRODUCTS
2

1.1 ROOF MATERIALS, MEMBRANES, SURFACING AND RELATED MATERIALS

.1 HIGH REFLECTIVITY SBS CAP SHEETS
PRODUCT DESCRIPTION APPLICATIONS
STRESSPLY® EUV SPF FR MINERAL 155 mil 4mm SBS and SIS (Styrene-Butadiene-Styrene and Styrene-Isoprene-Styrene) rubber modified membrane. It utilizes Kevlar
fibers and a dual polyester and fiberglass combination reinforcement. The result is a highly reflective, high strength, puncture and fatigue resistant, rubber modified membrane, with a factory applied ENERGY STAR® rated coating. 1300 lbf (5783N) Tear Strength, -34°C Low Temperature Flexibility, Solar Reflectance Index (SRI) 86		 Cold applied 2 or 3 ply system
STRESSPLY® PLUS SPF FR MINERAL 155 mil 4mm SBS and SIS (Styrene-Butadiene-Styrene and Styrene-Isoprene-Styrene) rubber modified membrane. It utilizes Kevlar
fibers and a dual polyester and fiberglass combination reinforcement. The result is a highly reflective, high strength, puncture and fatigue resistant, rubber modified membrane, with a factory applied ENERGY STAR® rated coating. 500 lbf (2224N) Tear Strength, -34°C Low Temperature Flexibility, Reflectance 0.7 min Solar Reflectance Index (SRI) 86		 Cold applied 2 or 3 ply system
STRESSPLY® IV PLUS SPF MINERAL 195 mil 5mm SBS (Styrene-Butadiene-Styrene) mineral surfaced rubber modified roofing membrane with a fiberglass and polyester composite scrim. with a factory applied ENERGY STAR® rated coating.. 510 lbf (2269N) Tear Strength, -40°C Low Temperature Flexibility, Solar Reflectance Index (SRI) 86 Heat Welded
.2 SBS CAP SHEETS
PRODUCT DESCRIPTION APPLICATIONS
STRESSPLY® E 80 mil 2mm SBS and SIS (Styrene-Butadiene-Styrene and Styrene-Isoprene-Styrene) rubber modified roofing membrane reinforced with a dual fiberglass scrim and polyester mat. 900 lbf (4003N) Tear Strength, -34°C Low Temperature Flexibility, 26% Recycled Content. Hot Asphalt, Cold Adhesives,
2 or 3 ply system
STRESSPLY® E MINERAL 160 mil 4mm SBS and SIS (Styrene-Butadiene-Styrene and Styrene-Isoprene-Styrene) mineral surfaced rubber modified roofing membrane reinforced with a dual fiberglass scrim and polyester mat. 900 lbf (4003N) Tear Strength, -34°C Low Temperature Flexibility, 6% Recycled Content. Hot Asphalt, Cold Adhesives,
2 or 3 ply system
STRESSPLY® E FR MINERAL 160 mil 4mm SBS and SIS (Styrene-Butadiene-Styrene and Styrene-Isoprene-Styrene) mineral surfaced rubber modified roofing membrane with fire retardant characteristics and reinforced with a dual fiberglass scrim and polyester mat. 1300 lbf (5783N) Tear Strength, -34°C Low Temperature Flexibility, 6% Recycled Content. Hot Asphalt, Cold Adhesives,
2 or 3 ply system
STRESSPLY® EUV 115 mil 3mm SBS and SIS (Styrene-Butadiene-Styrene and Styrene-Isoprene-Styrene) rubber modified membrane incorporating post consumer recycled rubber and reinforced with a fiberglass and polyester composite scrim. 1300 lbf (5783N) Tear Strength, -34°C Low Temperature Flexibility, 22% Recycled Content. Hot Asphalt, Cold Adhesives,
2 or 3 ply system
STRESSPLY® EUV Mineral 155 mil 4mm SBS and SIS (Styrene-Butadiene-Styrene and Styrene-Isoprene-Styrene) rubber modified membrane incorporating post consumer recycled rubber and reinforced with a fiberglass and polyester composite scrim. Surfaced with the highly reflective Starburst white mineral. 1300 lbf (5783N) Tear Strength, -34°C Low Temperature Flexibility, 5.5% Recycled Content. Hot Asphalt, Cold Adhesives,
2 or 3 ply system
STRESSPLY® EUV FR Mineral 155 mil 4mm SBS and SIS (Styrene-Butadiene-Styrene and Styrene-Isoprene-Styrene) rubber modified membrane incorporating post consumer recycled rubber, fire retardant additives and reinforced with a fiberglass and polyester composite scrim. Surfaced with the highly reflective Starburst white mineral. 1300 lbf (5783N) Tear Strength, -34°C Low Temperature Flexibility, 5.5% Recycled Content. Hot Asphalt, Cold Adhesives,
2 or 3 ply system
STRESSPLY® PLUS Environmentally Friendly; 105 mil 2.7mm SBS (Styrene-Butylene-Styrene) rubber modified roofing membrane incorporating recycled rubber and reinforced with a fiberglass and polyester composite scrim. 500 lbf (2224N) Tear Strength, -34°C Low Temperature Flexibility, 23% Recycled Content. Hot Asphalt, Cold Adhesives,
2 or 3 ply system
STRESSPLY® PLUS FR MINERAL Environmentally Friendly; 155 mil 4mm SBS (Styrene-Butylene-Styrene) mineral surfaced, rubber modified roofing membrane incorporating recycled rubber, fire retardant characteristics and reinforced with a fiberglass and polyester composite scrim. 500 lbf (2224N) Tear Strength, -34°C Low Temperature Flexibility, 7% Recycled Content. Hot Asphalt, Cold Adhesives,
2 or 3 ply system
STRESSPLY® 80 mil 2mm SBS (Styrene-Butadiene-Styrene) rubber modified roofing membrane with dual fiberglass reinforced scrim and superior low temperature capabilities. 300 lbf (1335N) Tear Strength, -46°C Low Temperature Flexibility, 27% Recycled Content. Hot Asphalt, Cold Adhesives,
2 or 3 ply system
STRESSPLY® MINERAL 145 mil SBS 3.7mm (Styrene-Butadiene-Styrene) mineral surfaced, rubber modified roofing membrane with dual fiberglass reinforced scrim and superior low temperature capabilities. 300 lbf (1335N) Tear Strength, -46°C Low Temperature Flexibility, 6% Recycled Content. Hot Asphalt, Cold Adhesives,
2 or 3 ply system
STRESSPLY® FR MINERAL 135 mil 3.7mm SBS (Styrene-Butadiene-Styrene) mineral surfaced, rubber modified roofing membrane with fire retardant characteristics, and dual fiberglass reinforced scrim and superior low temperature capabilities. 300 lbf (1335N) Tear Strength, -46°C Low Temperature Flexibility, 6% Recycled Content. Hot Asphalt, Cold Adhesives,
2 or 3 ply system
VERSIPLY® MINERAL 135 mil 3.5mm SBS (Styrene-Butadiene-Styrene) mineral surfaced, rubber modified roofing membrane with dual fiberglass reinforced scrim. 300 lbf (1335N) Tear Strength, -25°C Low Temperature Flexibility, 6% Recycled Content. Hot Asphalt, Cold Adhesives,
2 or 3 ply system
VERSIPLY® 80 80 mil 2mm SBS (Styrene-Butadiene-Styrene) rubber modified roofing membrane with dual fiberglass reinforced scrim. 300 lbf (1335N) Tear Strength, -30°C Low Temperature Flexibility, 24.5% Recycled Content. Hot Asphalt, Cold Adhesives,
2 or 3 ply system
VERSIPLY® 60 60 mil 1.5mm SBS (Styrene-Butadiene-Styrene) rubber modified roofing membrane with dual fiberglass reinforced scrim. 275 lbf (1223N) Tear Strength, -20°C Low Temperature Flexibility, 30.3% Recycled Content. Hot Asphalt, Cold Adhesives,
2 or 3 ply system
VERSIPLY® 40 40 mil 1mm SBS (Styrene-Butadiene-Styrene) rubber modified roofing membrane with dual fiberglass reinforced scrim. 275 lbf (1223N) Tear Strength, -30°C Low Temperature Flexibility, 28.24% Recycled Content. Hot Asphalt, Cold Adhesives,
2 or 3 ply system
STRESSPLY® IV MINERAL 195 mil 5mm SBS (Styrene-Butadiene-Styrene) mineral surfaced rubber modified roofing membrane with a dual fiberglass scrim. This membrane is designed for torch applications and has a burn-off backer that indicates when the material is hot enough to be installed. 250 lbf (1112N) Tear Strength, -20°C Low Temperature Flexibility. Heat Welded
STRESSPLY® IV PLUS MINERAL 195 mil 5mm SBS (Styrene-Butadiene-Styrene) mineral surfaced rubber modified roofing membrane with a fiberglass and polyester composite scrim. This membrane is designed for torch applications and has a burn-off backer that indicates when the material is hot enough to be installed. 510 lbf (2269N) Tear Strength, -40°C Low Temperature Flexibility. Heat Welded
STRESSPLY® SA FR MINERAL 140 mil SBS (Styrene-Butadiene-Styrene) rubber mineral surfaced modified roofing membrane reinforced with a dual fiberglass scrim and fire retardant characteristics. Heat Welded
STRESSPLY® MAX 145 mill 3.7mm SBS/SIS SIS (Styrene-Butadiene-Styrene and Styrene-Isoprene-Styrene) The Kevlar fiber enhanced dual fiberglass and polyester reinforcement allow StressPly Max membrane to provide tear strengths of 1,700 lbf./in (7561 N) while also providing an elongation of over 16%. The membrane’s post- consumers recycled contend exceed 7% and the pre-consumer recycled contend over 22%. Hot Asphalt,
SEBS Asphalt
2 or 3 ply system
STRESSPLY® MAX FR MINERAL 170 mill 4.3mm SBS/SIS SIS (Styrene-Butadiene-Styrene and Styrene-Isoprene-Styrene) The Kevlar fiber enhanced dual fiberglass and polyester reinforcement allow StressPly Max membrane to provide tensile strengths of 1,700 lbf./in (7561 N) while also providing an elongation of over 16%. The membrane’s post- consumers recycled contend exceed 7% and the pre-consumer recycled contend over 22%. StressPly Max FR Mineral incorporates the unique reflective Starburst mineral Hot Asphalt,
SEBS Asphalt
2 or 3 ply system
BIFIEX® CAP 120 mil 3mm SBS (Styrene-Butadiene-Styrene) rubber modified roofing membrane with a fiberglass scrim. This membrane is designed to be used with Bi-Flex modified base sheets. Hot Asphalt,
SEBS Asphalt
2 ply system
BIFLEX® MINERAL GAP 140 mil SBS (Styrene-Butadiene-Styrene) rubber modified roofing membrane with a fiberglass scrim. This membrane is designed to be used with Bi-Flex modified base sheets. Hot Asphalt,
SEBS Asphalt
2 ply system
.3 COAL TAR SBS CAP SHEETS
MILLENNIUM® 120 mill Polyester/fiberglass-reinforced SBS (Styrene-Butadiene-Styrene) modified coal tar membrane. This membrane is design to be used with BK and Millennium base sheets. Excellent chemical resistance. Hot and cold applied coal tar 2 or 3 ply system
MILLENNIUM® MINERAL 160 mill Polyester/fiberglass-reinforced SBS (Styrene-Butadiene-Styrene) coal tar membrane. This membrane is design to be used with BK and Millennium base sheets. Excellent chemical resistance. Hot and cold applied coal tar 2 or 3 ply system
MILLENNIUM® FR MINERAL 180 mill Polyester/fiberglass-reinforced SBS (Styrene-Butadiene-Styrene) coal tar FR membrane. This membrane is design to be used with BK and Millennium base sheets. Excellent chemical resistance. Hot and cold applied coal tar 2 or 3 ply system
2.4 BASE SHEETS
HPR™ SA FR Base Sheet SBS Modified self-adhering underlayment used in
StressPly SA FR		 Self Adhering
FLEXBASE® 80 80 mil 2mm base sheet, high strength, puncture and fatigue resistant rubber modified roofing base sheet designed for use as the waterproofing and reinforcement layer of a built-up or modified roofing system. It consists of two layers of fiberglass reinforcement sandwiched by Styrene-Butadiene-Styrene (SBS) rubber in a high penetration index asphalt mixture. For use with BiFlex Cap membrane. 300 lbf (1335N) Tear Strength, -34.4°C Low Temperature Flexibility, 23% Recycled Content. Hot Asphalt,
SEBS Asphalt
2 ply system
FLEXBASE® 120 120 mil 3mm base sheet, high strength, puncture and fatigue resistant rubber modified roofing base sheet designed for use as the waterproofing and reinforcement layer of a built-up or modified roofing system. It consists of two layers of fiberglass reinforcement sandwiched by Styrene-Butadiene-Styrene (SBS) rubber in a high penetration index asphalt mixture. For use with BiFlex Cap membrane. 300 lbf (1335N) Tear Strength, -34.4°C Low Temperature Flexibility, 18% Recycled Content. Hot Asphalt,
SEBS Asphalt
2 ply system
FLEXBASE® E 80 80 mil 2mm base sheet made up of Styrene-Butadiene-Styrene
(SBS), these rubber modified base sheets utilize Kevlar fibers and a dual polyester and fiberglass combination reinforcement that offers the inherent strength and heat stability of fiberglass along with the ability of polyester to conform. For use with BiFlex Cap membrane. 900 lbf (4003N) Tear Strength, -34.4°C Low Temperature Flexibility, 23% Recycled Content.		 Hot Asphalt,
SEBS Asphalt
2 ply system
FLEXBASE® E 120 120 mil 3mm base sheet made up of Styrene-Butadiene-Styrene
(SBS), these rubber modified base sheets utilize Kevlar fibers and a dual polyester and fiberglass combination reinforcement that offers the inherent strength and heat stability of fiberglass along with the ability of polyester to conform. For use with BiFlex Cap membrane. 900 lbf (4003N) Tear Strength, -34.4°C Low Temperature Flexibility, 18% Recycled Content.		 Hot Asphalt,
SEBS Asphalt
2 ply system
FLEXBASE® PLUS 80 80 mil 2mm base sheet, high strength, puncture and fatigue resistant rubber modified roofing base sheet designed for use as the waterproofing and reinforcement layer of a built-up or modified roofing system. It consists of two layers of fiberglass reinforcement sandwiched by Styrene-Butadiene-Styrene (SBS) rubber in a high penetration index asphalt mixture. For use with BiFlex Cap membrane. 500 lbf (2224N) Tear Strength, -34.4°C Low Temperature Flexibility, 23% Recycled Content. Hot Asphalt,
SEBS Asphalt
2 ply system
FLEXBASE® PLUS 120 120 mil 3mm base sheet, high strength, puncture and fatigue resistant rubber modified roofing base sheet designed for use as the waterproofing and reinforcement layer of a built-up or modified roofing system. It consists of two layers of fiberglass reinforcement sandwiched by Styrene-Butadiene-Styrene (SBS) rubber in a high penetration index asphalt mixture. For use with BiFlex Cap membrane. 500 lbf (2224N) Tear Strength, -34.4°C Low Temperature Flexibility, 18% Recycled Content. Hot Asphalt,
SEBS Asphalt
2 ply system
STRESSBASE® 80 80 mil 2mm base sheet, high strength, puncture and fatigue resistant, rubber modified roofing membranes designed for use as the waterproofing and reinforcement layer of a built-up or modified roofing system. It consists of fiberglass reinforcement sandwiched by Styrene-Butadiene-Styrene (SBS) rubber in a high penetration index asphalt mixture. For use with StressPly membranes. 110 lbf (489N) Tear Strength, -28.8°C Low Temperature Flexibility, 20% Recycled Content. Hot Asphalt, SEBS Asphalt, cold applied,
2 ply system
STRESSBASE® 120 120 mil 3mm base sheet, high strength, puncture and fatigue resistant, rubber modified roofing membranes designed for use as the waterproofing and reinforcement layer of a built-up or modified roofing system. It consists of fiberglass reinforcement sandwiched by Styrene-Butadiene-Styrene (SBS) rubber in a high penetration index asphalt mixture. For use with StressPly membranes. 110 lbf (489N) Tear Strength, -28.8°C Low Temperature Flexibility, 26% Recycled Content Hot Asphalt, SEBS Asphalt, cold applied,
2 ply system
2.5 SURFACINGS
Silver-Shield® Fibered Aluminum Roof Coating; fibered aluminum roof coating
Garla-Brite™ Non-Fibered Aluminum Paint; non-fibered aluminum paint having the following characteristics:
Pyramic™ White Elastomeric Roof Coating; Energy Star approved white acrylic roof coating:
Solex™ White, reflective, Kynar based roof coating, meets and exceeds all the requirements of CRRC, Energy Star® and Title 24 standards, and contributes to LEED® points.
WeatherScreen™ Asphalt Protective Roof Coating; heavy-bodied, fiber reinforced, cold process roof coating
Black•Stallion® Cold Cold process polymer-modified coal tar topcoat
Weatherking® High-grade, cold applied rubber modified topcoat for slopes up to 3:12 (25%)
2.6 RELATED MATERIALS
Flashing Bond® Cold-applied, fibered mastic used with
reinforcing fabric
Garla-Flex® High quality flexible elastomeric asphaltic mastic
Green-Lock ®Membrane Adhesive Green-Lock Membrane Adhesive uses polymer technology that makes it 100% solids and solvent free. Being solvent free means there will be no adverse affects typically associated with traditional solvent based products such as odors, sheet softening, compound damage, solvent blisters, etc. It is also environmentally friendly due to containing zero VOCs.
HPR™ SA Modified Adhesive Modified adhesive for StressPly SA
FR mineral flashing laps and end flaps
Garla-Prime® Quick-dry asphalt cut back primer
Green-Lock™ Adhesive 100% Solids, zero VOC, flashing adhesive for SBS sheets only
Weatherking® High-grade, cold applied rubber modified topcoat for slopes up to 3:12 (25%)
Tuff-Stuff™ Moisture curing single-component non-sag polyurethane sealant
Seal-Rite® Thermoplastic rubber sealant
Seal-Tite™ Two-part pourable urethane pitch pocket sealant
2.1 ANCILLARY PRODUCTS
.1 Asphalt: Roofing asphalt conforming to ASTM D312-78 Type 4, CSA A 123.4 M < 1979 Type # on slopes less then 1:24 (1/2” in 12’) (4%).
Part 3 – EXECUTION
3.1 PREPARATION
.1 Ensure membrane substrate is rigid, dry, smooth, compatible, free of fins and sharp edges, and clean of all
.2 Ensure all openings, walls, and projections through the roof are firmly affixed and cant strips, reglets and nailing strips are in place.
.3 A thermal barrier may be required between the roof deck and some insulations. Building code and insurance requirements to be identified by design authority.
3.2 PRIMER
.1 Prime wood, concrete, and metal surfaces to be directly adhered with bituminous membranes; allow to dry.
3.3 APPLICATION INSTRUCTION FOR A TWO SYSTEM
.1 BASE SHEET INSTALATION (TWO PLY SYSTEM) HOT OR COLD
A) Base sheet: Install one (1) SBS base sheet in twenty five (25) lbs (11.3kg) per square of bitumen of cold adhesives shingled uniformly over the entire prepared substrate. Shingle in direction of slope of roof to shed water on each area of roof. Do not step on rolls until asphalt has cooled, fish mouths should be cut and patched.
B) Lap ply sheet ends eight (8) inches (203mm).
C) Lightly broom in base plies to assure complete adhesion.
D) Extend plies two (2) inches (50mm) beyond top edges of cants at wall and roof projections and equipment bases.
E) Install base flashing ply to all perimeter and projection details after membrane application.
.2 MODIFIED MEMBRANE INSTALATION HOT OR COLD
A) Solidly bond the modified membrane to the base layers with specified asphalt or cold adhesives at the rate of twenty five (25) to thirty (30) lbs. (11-13kg) per 100 square feet.
B) The modified membrane roll must push a puddle of asphalt in front of it with asphalt or cold adhesives slightly visible at all side laps. Exercise care during application to eliminate air entrapment under the membrane.
C) Apply pressure to all seams to ensure that the laps are solidly bonded to substrate.
D) Install subsequent rolls of modified membrane across the roof as above with a minimum of four (4) inch (101mm) side laps and eight (8) inch (203mm) end laps. Stagger the end laps. Apply the modified membrane in the same direction as the previous layers but stagger the laps so they do not coincide with the laps of the base layers.
E) Apply asphalt or cold adhesives no more than five (5) feet (1.5m) ahead of each roll being embedded.
.4 FLASHING MEMBRANE INSTALATION
A) Seal all curb, wall and parapet flashings with an application of mastic and mesh on a daily basis. Do not permit conditions to exist that will allow moisture to enter behind, around or under the roof or flashing membrane.
B) Prepare all walls, penetrations, expansion joints [and where shown on the drawings] to be flashed with asphalt primer at the rate of one hundred (100) square feet per gallon (2.1square m per litre). Allow primer to dry tack free.
C) Use the modified membrane as the flashing membrane. Adhere to the underlying base flashing ply with specified asphalt unless otherwise noted in these specifications. Nail off at a minimum of eight (8) inches (203mm) o.c. from the finished roof at all vertical surfaces.
D) Solidly adhere the entire sheet of flashing membrane to the substrate.
E) Seal all vertical laps of flashing membrane with a three-course application of trowel-grade mastic and fiberglass mesh.
F) Coordinate counter flashing, cap flashings, expansion joints, and similar work with modified bitumen roofing work.
G) Coordinate roof accessories, miscellaneous sheet metal accessory items, including piping vents and other devices with the roofing system work.
3.4 APPLICATION INSTRUCTION FOR A TWO PLY SYSTEM – HOT WELDED
.1 BASE SHEET INSTALATION (TWO OR THREE PLY SYSTEM)
A) Install one layer of SBS Torch Base Sheet to a properly prepared substrate. Shingle in proper direction to shed water on each area of roofing.
B) To a suitable substrate, lay out the roll in the course to be followed and unroll six (6) feet (1.8m).
C) Using a roofing torch, heat the surface of the coiled portion until the burn-off backer melts away. At this point, the material is hot enough to lay into the substrate. Progressively unroll the sheet while heating and press down with your foot to insure a proper bond.
D) After the major portion of the roll is bonded, re-roll the first six (6) feet (1.8m) and bond it in a similar fashion.
E) Repeat this operation with subsequent rolls with side laps of four (4) inches (101mm) and end laps of eight inches.
F) Give each lap a finishing touch by passing the torch along the joint and spreading the melted bitumen evenly with a rounded trowel to insure a smooth, tight seal.
G) Extend underlayment two (2) inches (50mm) beyond top edges of cants at wall and projection bases.
H) Install base flashing ply to all perimeter and projections details.
.2 MODIFIED MEMBRANE APPLICATION
A) Install HPR torch-on membrane as described below.
B) Over the SBS Torch Base Sheet underlayment(s), lay out the roll in the course to be followed and unroll six (6) feet (1.8m). Seams for the top layer of modified membrane will be staggered over the SBS Torch Base Sheet seams.
C) Using a roofing torch, heat the surface of the coiled portion until the burn-off backer melts away. At this point, the material is hot enough to lay into the substrate. Progressively unroll the sheet while heating and press down with your foot to insure a proper bond.
D) After the major portion of the roll is bonded, re-roll the first six (6) feet (1.8m) and bond it in a similar fashion.
E) Repeat this operation with subsequent rolls with side laps of four (4) inches (101mm) and end laps of eight (8) inches (203mm).
F) Give each lap a finishing touch by passing the torch along the joint and spreading the melted bitumen evenly with a rounded trowel to insure a smooth, tight seal.
.3 FLASHING MEMBRANE INSTALATION
A) Seal all curb, wall and parapet flashings with an application of mastic and mesh on a daily basis. Do not permit conditions to exist that will allow moisture to enter behind, around or under the roof or flashing membrane.
B) Prepare all walls, penetrations, expansion joints [, and where shown on the drawings] to be flashed with asphalt primer at the rate of one hundred (100) square feet per gallon (2.1 square m per litre). Allow primer to dry tack free.
C) Use the modified membrane as the flashing membrane. Adhere to the underlying base flashing ply with specified asphalt unless otherwise noted in these specifications. Nail off at a minimum of eight (8) inches (203mm) o.c. from the finished roof at all vertical surfaces.
D) Solidly adhere the entire sheet of flashing membrane to the substrate. Tops of all flashings that are not run up and over curb shall be secured through termination bar 6 inches (152mm) and sealed at top
E) Seal all vertical laps of flashing membrane with a three-course application of trowel-grade mastic and fiberglass mesh.
F) Coordinate counter flashing, cap flashings, expansion joints, and similar work with modified bitumen roofing work.
G) Coordinate roof accessories, miscellaneous sheet metal accessory items, including piping vents and other devices with the roofing system work [as specified in other sections].
3.5 APPLICATION INSTRUCTION FOR SELF ADHERING SYSTEM
.1 BASE PLY INSTALATION (TWO OR THREE PLY SYSTEM)
A) Fiberglass Plies: Install one (1) ply HPR SA Base Sheets shingled uniformly over the entire prepared substrate. Shingle in direction of slope of roof to shed water on each area of roof.
B) Fiberglass Plies: Install two (2) plies HPR SA Base Sheets shingled uniformly to achieve two plies over the entire prepared substrate. Shingle in direction of slope of roof to shed water on each area of roof.
C) Lap ply sheet ends eight (8) inches (203mm). Stagger end laps twelve (12) inches (305mm) minimum.
D) Extend plies two (2) inches (51mm) beyond top edges of cants at wall and roof projections and equipment bases.
E) Install base flashing ply to all perimeter and projection details.
.2 MODIFIED MEMBRANE INSTALATION
A) The modified membrane shall then by solidly adhered to the base layers.
B) Starting at the low point, unroll the StressPly SA FR Mineral in the desired position. Fold the membrane back onto itself, remove the split back release film from the exposed side and gradually push the membrane into place. Apply even pressure along the entire length of the membrane from center to outer edges to avoid air pockets or wrinkles. Care should be taken to eliminate air entrapment under the membrane.
C) Repeat for the other side. After the rolls are in place, apply uniform pressure to the entire roll area using a long handle weighted roller.
D) Install subsequent rolls of modified membrane across the roof as above with a minimum of four (4) inch (102 mm) side laps and eight (8) inch (203 mm) end laps. Stagger the end laps. Apply the modified membrane in the same direction as the previous layers but stagger the laps so they do not coincide with the laps of the base layers.
E) Where a lap is to be made to the granular surface, vigorously brush loose granules from the surface to be mated and carefully apply Flashing Bond to the granular surface. And allow 5-10 minutes to flash. Join the two surfaces and using a small metal roller or other suitable roller, firmly press into place. Roll edges firmly to ensure positive adhesion.
.3 FLASHING MEMBRANE APPLICATION
A) Seal all curb, wall and parapet flashings with an application of mastic and mesh on a daily basis. Do not permit conditions to exist that will allow moisture to enter behind, around or under the roof or flashing membrane.
B) Specifier Note: Verify that drawings contain applicable details. Otherwise delete the text in brackets indicated in the following paragraph.
C) Prepare all walls, penetrations, expansion joints [and where shown on the drawings] to be flashed with asphalt primer at the rate of one hundred (100) square feet per gallon (2.1 square meter per litre). Allow primer to dry tack free.
D) Use the modified membrane as the flashing membrane and will be adhered to an underlying base flashing. Nail off at a minimum of eight (8) inches (203 mm) o.c. from the finished roof at all vertical surfaces.
E) Solidly adhere the entire sheet of flashing membrane to the substrate. Tops of all flashings that are not run up and over curb shall be secured through termination bar 6" and sealed at top.
F) Seal all vertical laps of flashing membrane with a three-course application of trowel-grade mastic and fiberglass mesh.
G) Specifier Note: Delete the text within brackets in the following two paragraphs if no other applicable roofing sections are included in the Project Manual.
H) Coordinate counter flashing, cap flashings, expansion joints, and similar work with modified bitumen roofing work.
I) Coordinate roof accessories, miscellaneous sheet metal accessory items, including piping vents and other devices with the roofing system work [as specified in other sections]. When using mineralized cap sheet, all stripping shall be installed prior to cap sheet installation.

Specifier Note: Include only the following paragraphs which coordinate with details existing on the roof that you are specifying. Please delete the paragraphs that do not apply to your roof. The detail number correlates to a detail drawing that should accompany this specification. Delete the drawing number in brackets in the final edit of the specification. Contact your local Garland Representative with any questions regarding unusual or custom details.

END OF SECTION

Manufacturer:

1 HAL INDUSTRIES INC.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Country of Origin: Canada (B.C.) Country of Manufacture: Canada (B.C.)

Year First Installed
1990

DESCRIPTION

Hal Industries Inc. has been manufacturing asphalt roofing products for the flat roofing industry since 1974.

Asphalt available from B.C. refineries has been shown to have excellent compatibility with SBS polymers. Hal Industries Inc. uses a high-shear mixing process to blend raw asphalt with linear and branched SBS polymers. Limestone filler is then added as a thickener and conditioner and other minor ingredients are added as performance enhancers. This blend is used to saturate and coat non-woven polyester or fibreglass mat to produce a very flexible, high-quality membrane.

Cap sheets are surfaced with either mineral granules or aluminum foil on the top side and either sand or thermofusible polypropylene film on the underside. Base sheets are surfaced with sand or thermofusible polypropylene film, or a combination of these. Membranes may be installed either by the torch method or by embedment in hot asphalt.

Product designations are as follows:

  1. Therm-a-ply P180 series (Polyester-reinforced, moppable, torchable)
  2. Therm-a-ply G100 series (Fibreglass-reinforced, moppable, torchable)
  3. Alumatac P180 or Alumatac G100 (Aluminum foil-surfaced, moppable, torchable)
  4. Polymax 180 GS (Mineral-surfaced cap sheet, moppable)
PART 1 - GENERAL
The roofing assembly / material information published in the RCABC Roofing Practices Manual does NOT represent a complete set of the manufacturer's published data, nor does it represent a detailed specification. The preparation of a detailed specification is the responsibility of the design authority.
1.1 RANGE OF APPLICATION
.1 For use over roof decks in commercial, institutional, industrial, and residential construction, where built- up roofing has historically been specified.
.2 As a loose-laid roofing membrane under ballast (gravel or pavers) in a protected membrane system.
.3 As a fully-adhered or mechanically-fastened roofing membrane, without ballast, on flat, curved, or low-sloped roofs.
.4 As a roofing membrane over existing roofs in recover or replacement applications.
.5 As a waterproofing membrane over parking garages or foundations.
1.2 DELIVERY, STORAGE, AND HANDLING
.1 Keep all materials dry during storage and application. Avoid storing in direct sunlight. Always store and ship rolls in a vertical position. Avoid damage during handling.
.2 If ambient temperature is 5°C (41°F) or lower, store rolls in a heated enclosure for at least 24 hours prior to use.
1.3 SITE CONDITI`ONS
.1 Membrane installed on slopes from dead flat to 1:12 (1" in 12") may be applied with or without mechanical fastening. Membrane installed on slopes exceeding 1:12 (1" in 12") must be mechanically-fastened to the deck surface.
.2 Mopping of membranes to a deck slope which exceeds 1:12 (1" in 12") is generally not recommended. Contact manufacturer for advice.
1.4 STANDARDS
.1 Independently sampled and tested by Warnock Hersey Labs to CGSB 37-GP-56M.
.2 Class C fire rated. Contact manufacturer for updated information.
1.5 MANUFACTURER'S SERVICES
.1 Factory representative is available at all times for applicator training assistance.
.2 Specification writing assistance is available.
.3 Plant visits are available to B.C. applicators or specifiers for educational purposes.
PART 2 - PRODUCTS
2.1

1.1 ROOF MEMBRANES

Product Surfacing
Top / Bottom		 Nominal
Thickness
mm		 Nominal
Application
Weight
g/m²		 Application
Cap Sheets:
Therm-a-ply
P180 GF granules / film 4 180 Polyester Torch
P180 GS granules / sand 3.5 180 Polyester Mop
P250 GF granules / film 4.5 250 Polyester Torch
G100 GF granules / film 4 100 Fibreglass Torch
G100 GS granules / sand 3.5 100 Fibreglass Mop
Polymax
180 GS granules / sand 3 180 Polyester Mop
Alumatac
P180 AF Al. foil / film 3 180 Polyester Torch
P180 AS Al. foil / sand 3 180 Polyester Mop
G100 AF Al. foil / film 3 100 Fibreglass Torch
G100 AS Al. foil / sand 3 100 Fibreglass Mop
Base Sheets:
Therm-a-ply
P180 FS film / sand 2.2 180 Polyester Torch / Mop
P180 SS sand / sand 2.2 180 Polyester Mop
G100 FS film / sand 2.2 100 Fibreglass Torch / Mop
G100 SS sand / sand 2.2 100 Fibreglass Mop
P180 FF film / film 3 180 Polyester Torch
G100 FF film / film 3 100 Fibreglass Torch
G100 FR film / silicone 2.5 100 Fibreglass Peel & Stick
2.2 ANCILLARY PRODUCTS AVAILABLE FROM HAL INDUSTRIES INC.
.1 Asphalt conforming to CSA 123.4-M Type 2 and Type 3.
.2 Vapour Retarder: Hal Industries Inc. laminated Scrim Kraft conforming to CAN 2-51.33 M77.
.3 No.15 organic roofing felt conforming to CSA 123.3M1979.
.4 Polymer-modified mopping asphalt (SEBS polymer).
.5 Polymer-modified trowel grade mastic cement.
.6 Asphalt primer, conforming to CGSB 37-GP-9Ma 1983.
.7 Surfacing granules, ceramic or slate.
.8 Dry Sheathing: a dry slip-sheet paper made from recycled fibres, for use over wood decks.
.9 Therma-Tape torch applied board tape.
.10 Perma-Tape peel & stick board tape.
.11 Perma- Board, asphalt overlay board.
2.3 Perma-board ASPHALT BASE / OVERLAY
System Uses:
.1 As a mechanically fastened wood deck overlay.
.2 As an insulation overlay, mopped or mechanically fastened.

NOTE: The selection and specification of roof insulation, vapour retarder, fibreboard, etc. is the responsibility of the project design authority, architect, engineer, or owner, and is not the responsibility of Hal Industries Inc.

PART 3 - EXECUTION
3.1 PREPARATION
.1 Site conditions must be suitable for membrane application (see 1.3).
.2 Deck must be clean, dry, and securely fastened.
.3 Cants must be installed at all abrupt rises in deck elevation such as curbs, parapet walls, and roof edges.
.4 Ensure that roofing materials are dry and undamaged.
.5 Suitable flame-resistant substrates must be installed prior to application of any torch-applied membrane.
.6 Fire extinguishers and other safety equipment must be on the roof prior to commencement of the job.
3.2 PRIMER
.1 Apply asphalt primer where specified by the design authority or where the roof is being applied directly to wood, concrete, or metal surface. Asphalt primer shall conform to CGSB-37-GP-9-Ma-1983.
3.3 VAPOUR RETARDER
.1 If a vapour retarder is specified as part of the roofing system, it shall be one of the following:
  • Scrim Kraft vapour retarder produced by Hal Industries Inc.
  • No.15 organic roofing felt plus asphalt.
  • Other approved vapour retarder.
.2 Vapour retarder shall be installed as specified by the design authority.
3.4 INSULATION
.1 Nailable Decks: mechanically fasten insulation as per manufacturer's recommended method and to RGC Guarantee Standards.
.2 Non-Nailable Decks: embed insulation in a mopping of hot asphalt or attach by other approved methods according to RGC Guarantee Standards.
.3 On slopes exceeding 1:12 (1" in 12"), install nailing strips at 600 mm (24") centres according to RGC Guarantee Standards.
.4 Install accepted insulation overlay board, where required, according to RGC Guarantee Standards.
.5 Perma-board is an accepted insulation overlay for one and two layer applications where applicable.
.6 Where a torch-applied roofing system is to be installed over Perma-board and the surface beneath the Perma-board is flame sensitive, then cover all joints in Perma-board with tape or alternately place 150 mm (6") wide Type IV fibreglass strips beneath joints, prior to torch-applying a membrane. Tape is to be HAL’s torch-applied Therma-tape.
.7 Where tape is used to flame-proof the joints in Perma-board, use the following steps:
  • Pre-torch all edges of each Perma-board sheet before installing to remove polyfilm surface layer.
  • Cut tape into convenient lengths then pre-torch one side and place quickly over joint, then press or roll to adhere. Overlap end joints 50 mm (2").
.8 Fasten Perma-board overlay using nine fasteners per board, as shown, or alternatively adhere Perma-board with hot asphalt, according to RGC Guarantee Standards, ensuring that sanded-side be placed down against the asphalt.
2 m (80")
• • •
• • •
• • • 
1 m (40")
3.5 BASE SHEET APPLICATION
.1 On slopes up to 1:12 (1" in 12"), install base sheet at right angles to slope, beginning at low point of roof.
.2 On slopes exceeding 1:12 (1" in 12"), install base sheet parallel to slope, and nail upper edge at 200 mm (8") o/c with minimum 25 mm (1") headed roofing nails.
.3 Unroll and align membrane, lap sides 75 mm (3") and ends 150 mm (6"). Always keep several rolls laid out on the roof deck ahead of the installation to permit relaxation and acclimatization to take place.
.4 Install each aligned sheet by re-rolling approximately halfway and adhering each half alternately.
.5 Asphalt-adhered sheet (sanded side down) (Use Type 3 or Type 4 asphalt only):
  • Apply hot asphalt to the roof deck surface at its equiviscous temperature [minimum 205°C (400°F)] at a rate of 1.2 kg / m² (25 lb / 100 sq ft).Maintain a puddle just ahead of the advancing roll at all times, allowing a positive bleed-out to occur at each edge of the sheet.Never mop more than one metre ahead of roll.
  • Press the membrane into the hot asphalt.
  • Slit any fishmouths and press in while asphalt is still hot.Apply a patch to cover any slits by embedding the patch into hot asphalt.
  • Use a roofer's torch to melt polyfilm and prepare a selvedge under each end lap.
.6 Torch-adhered sheet (polyfilm-surfaced side down):
  • Using a trigger-handled roofer's torch, heat the roll surface evenly until the polyfilm surfacing melts and a slight flow of coating occurs.Apply heat to selvedge edge of previous sheet while at the same time advancing the roll with a hooked bar.A slight bead of coating should squeeze out at the lap.
3.6 CAP SHEET APPLICATION
.1 Install cap sheet in the same direction as the base sheet, starting at low point and staggering all laps.Offset the side laps from base sheet side laps by a minimum of 300 mm (12") and end laps by a minimum of 1 m (39"). Overlap at sides must be no less than 75 mm (3"), and at ends no less than 150 mm (6").
.2 Keep several rolls laid out on the roof deck ahead of the installation to permit relaxation and acclimatization to take place.
.3 Install each aligned sheet by re-rolling approximately halfway and adhering each half alternately.
.4 Asphalt-adhered sheet (to sanded base sheet only):
  • Apply hot asphalt to the base sheet surface at its equiviscous temperature [minimum 205°C (400°F)] at a rate of 1.2 kg / m² (25 lb / 100 sq ft).Maintain a puddle just ahead of the advancing roll at all times, allowing a positive bleed-out to occur at each edge of the sheet.Never mop more than one metre ahead of the roll.
  • Roll out and press the membrane into the hot asphalt, eliminating any trapped air pockets.Avoid walking on newly-placed cap sheet until it cools.
.5 Torch-adhered sheet:
  • Using a trigger-handled roofer's torch, evenly heat the underside of the cap sheet roll and the top side of the base sheet, creating a liquid sheen on both surfaces.Advance the roll with a hooked bar, ensuring that a minimum 8 mm (3/8") bead of melted coating exudes at the lap edge.Maintain a puddle of melted coating ahead of the roll.
3.7 MEMBRANE FLASHING
.1 Cut flashing membrane into suitably-sized pieces one metre wide.Allow for minimum 75 mm (3") side lap, 150 mm (6") lap onto roof deck, and 200 mm (8") up vertical surface.
.2 Asphalt-adhered flashing: apply a full mopping of hot asphalt to the roof surface and press in each flashing sheet ensuring good adhesion.Use a hand trowel to aid in the process.
.3 Torch-applied flashing: use a detailing torch to heat the underside of each flashing sheet and the roof surface.Press each sheet into position with the aid of a hand trowel.
.4 Wherever practical, we recommend flashing be torch-applied rather than asphalt-adhered wherever practical.
3.8 PRECAUTIONS
.1 When a torch-applied sheet is to be lapped over a granulated surface (such as end laps), always embed granules on the lower sheet with a heated hand trowel prior to making the lap.
.2 When a mop-applied sheet is to be lapped over a polyfilmed surface (such as end laps), always torch the film on the lower sheet prior to making the lap.
.3 Never install membranes over a surface which contains moisture.Moisture trapped between plies will cause blistering in the future.
If a base sheet has been installed and subsequently rained-on prior to cap sheet installation, moisture may become trapped under the polyfilm surfacing.As a precaution against entrapping this moisture during cap sheet installation, torch all polyfilm surfaces at least one hour prior to installing the cap sheets.

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Manufacturer: HAL INDUSTRIES INC.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.1 EXPOSED MEMBRANE, UNINSULATED DECK

Slope Limitation:

No slope limitation for torch applied sheets.
1:4 slope limitation for mopped sheets (consult Hal Industries Inc.).

In-Service Performance Min.: <-18°C ( 0°F) Membrane will remain stable but increasingly less flexible with lower temperatures.

Temperature of the Membrane: Max.: >+93°C (+200°F)

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Wood / Plywood Plywood joints shall be taped and the surface primed if adhering directly. Wood board decks must have a mechanically-fastened separator sheet installed. Steel decks require a mechanically-fastened rigid overlay.
Concrete
Steel
Other approved
Overlay Gypsum board Minimum thickness 12.7 mm (1/2") required on steel decks, mechanically fastened.
Plywood
Asphalt Type 3 to To be applied at equiviscous temperature.
CSA 123.4 M1979 Maximum slope for mopped sheets is 1:4 (3" in 12").
TWO-PLY MEMBRANE
Base Sheet Therm-a-ply: Install sand-backed sheets into a full mopping of hot asphalt. Install polyfilm-backed sheets by torching to a suitable substrate.
P180 FS or P180 SS
G100 FS or G100 SS
P180 FF or G100 FF
Cap Sheet Therm-a-ply: Mop sanded cap sheets only and torch polyfilm-surfaced cap sheets only.
P180 GF or P180 GS
G100 GF or G100 GS
Polymax P180 GS
Alumatac:
P180 AF or P180 AS
G100 AF or G100 AS
Flashing Base Ply Flashing material to be the same as the membrane Membrane being stripped but never less than 180 g / m2 reinforcement and preferably torch applied.
Cap Ply Torch applied Hal granular membrane with minimum 180 g / m2 reinforcement.
SINGLE PLY MEMBRANE
(Minimum slope 1:15 (3/4" in 12")
Granular Sheet Therm-a-ply P180 GF Torch applied. Maximum slope not limited.
Therm-a-ply P250 GF Torch applied. Maximum slope not limited.
Flashing Membranes
Base Ply Therm-a-ply P180 FF Torch apply prior to roof membrane.
Cap Ply Therm-a-ply P180 GF Torch apply after roof membrane.
Therm-a-ply P250 GF Torch apply after roof membrane

Manufacturer: HAL INDUSTRIES INC.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.2 EXPOSED MEMBRANE, INSULATED DECK

Slope Limitation: No slope limitation for torch applied sheets.

1:4 slope limitation for mopped sheets (consult Hal Industries Inc.).

In-Service Performance Min.: <-18°C ( 0°F) Membrane will remain stable but increasingly less flexible with lower temperatures.

Temperature of the Membrane: Max.: >+93°C (+200°F) Membrane may lose dimensional stability at higher temperatures.

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Wood / Plywood Prime surfaces to be directly adhered with bituminous materials.
Concrete
Steel
Other approved
Thermal Barrier Gypsum board Minimum 12.7 mm (1/2") thickness may be required between steel deck and a combustible insulation (see Building Code). Mechanically fasten to RGC Guarantee Standards.
Vapour Retarder Scrim Kraft Choice and use determined by design authority.
Or pre-approved alternative
Insulation Fibrous glass An RGC accepted insulation overlay (one or two layers) is required over heat sensitive and non heat sensitive foamed insulations.
Expanded polystyrene
Extruded polystyrene
Polyurethane Perma-board is an accepted insulation overlay. In applications requiring two layers of overlay, Perma-Board is accepted as the second layer. The first insulation overlay board layers to be an RGC accepted Perlitic or Fiberboard Insulation Overlay.
Polyisocyanurate
Organic fibreboard
Or pre-approved alternative
Insulation Overlay Perma-board Install to RGC Guarantee Standards.
11 mm (7/16") organic fibreboard
12.7 mm (1/2") Perlitic Board
Asphalt To CSA 123.4 M1979 Apply only at minimum 205°C (400°F) temperature.
Type 3 Maximum slope for mopped sheets is 1:4.
TWO-PLY MEMBRANE
Base Sheet Therm-a-ply: Torch sheets with polyfilm surface.
P180 FS or P180 SS
G100 FS or G100 SS Mop sheets with sanded surface.
P180 FF or G100 FF
Cap Sheet Therm-a-ply: Install sand-backed cap sheets into a full mopping of hot equiviscous asphalt.
P180 GF or P180 GS
G100 GF or G100 GS
Polymax P180 GS Install polyfilm-backed cap sheets by torching to a suitable base sheet.
Alumatac:
P180 AF or P180 AS
G100 AF or G100 AS
MEMBRANE FLASHING
Base Ply Therm-a-ply: Torch sheets with polyfilm backing.
P180 FF or P180 SS
P180 GF or P180 GS
Cap Ply Polymax 180 GS Mop sheets with sanded surface.
Alumatac:
P180 AF or P180 AS

Manufacturer: HAL INDUSTRIES INC.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.3 PROTECTED MEMBRANE OR MODIFIED PROTECTED ROOF ASSEMBLIES (PMR & MPMR)

Slope Limitation: No slope limitation for torch applied sheets.

1:4 slope limitation for mopped sheets (consult Hal Industries Inc.).

In-Service Performance Min.: <-18°C ( 0°F) Membrane will remain stable but increasingly less flexible with lower temperatures.

Temperature of the Membrane: Max.: >+93°C (+200°F) Membrane may lose dimensional stability at higher temperatures.

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Wood / Plywood Plywood joints shall be taped and the surface primed if adhering directly. Wood board decks require a nailed separator sheet. Steel decks require a rigid underlay mechanically fastened per RGC Guarantee Standards.
Concrete
Steel
Other approved
Underlay/Thermal Barrier Gypsum board Minimum 12.7 mm (1/2") may be used as a membrane underlay over steel decks or as a thermal barrier between steel decks and roof systems with combustible insulations in PMR and MPMR systems (see Building Code).
Plywood Minimum 12.7 mm (1/2") may be used as a membrane underlay over steel decks when a thermal barrier is not required.
Vapour Retarder Scrim Kraft Choice and use determined by the design authority.
Or pre-approved alternative
Insulation Fibrous glass Under the membrane in a MPMR, an RGC accepted overlay board (one or two layers) is required over foamed insulations. Perma-board is an accepted insulation overlay.
Expanded polystyrene
Extruded polystyrene
Polyurethane
Polyisocyanurate
Organic Fibreboard
Or pre-approved alternative
Insulation Overlay Perma-board Where required. Install to RGC Guarantee Standards.
11 mm (7/16") organic fibreboard
12.7 m (1/2") Perlitic Board
TWO-PLY MEMBRANE
Base Sheet Therm-a-ply: Torch sheets with polyfilm surface.
P180 FS or P180 SS
G100 FS or G100 SS Mop sheets with sanded surface.
P180 FF or G100 FF
Cap Sheet Therm-a-ply: Install sand-backed cap sheets into a full mopping of hot equiviscous asphalt.
P180 GF or P180 GS
G100 GF or G100 GS
Polymax P180 GS Install polyfilm-backed cap sheets by torching to a suitable base sheet.
Alumatac:
P180 AF or P180 AS
G100 AF or G100 AS
MEMBRANE FLASHING
Base Ply Therm-a-ply: Torch sheets with polyfilm backing.
P180 FF or P180 SS
Cap Ply Therm-a-ply: Mop sheets with sanded surface.
P180 GF or P180 GS
Polymax 180 GS
Alumatac:
P180 AF or P180 AS
Insulation Extruded polystyrene Loose-laid, requires filter fabric and ballast.
Type 4
Concrete-topped Requires no filter fabric or ballast.
extruded polystyrene, Type 4
Filter Fabric As approved by Loose-lay over insulation.
insulation manufacturer
Ballast Gravel Install as per design authority.
Pavers Install on pedestals.
Manufacturer:

1 HENRY COMPANY CANADA

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Country of Origin: Germany

Country of Manufacture: Canada

Year First Installed
B.C.: 1985
Canada: 1985
Foreign: 1971

DESCRIPTION

The main components of the roofing and waterproofing systems are bitumen modified with SBS (Styrene Butadiene Styrene) and either fibreglass or polyester reinforcement.

The system normally consists of two plies of membrane. The membrane is produced in 1 m (39") wide rolls and varies in thickness from 2 mm (0.08") to 5 mm (0.2") depending on use and reinforcement.

The membrane is constructed by coating either a fibreglass or polyester fabric, on both the top and bottom, with high performance modified bitumen. The lower surface is either sanded or receives a poly surface while the top surface is covered with granules or sand.

The system is constructed in the field by either mopping with hot asphalt, torch welding, self-adhering, mechanically fastening or cold applied adhesive. In protected membrane roofing, granule-surfaced cap sheets are normally required on flashings only, with sanded surface cap sheets on field of roof.

PART 1 - GENERAL
The roofing assembly / material information published in the RGC Roofing Practices Manual does NOT represent a complete set of the manufacturer's published data, nor does it represent a detailed specification. The preparation of a detailed specification is the responsibility of the design authority.
1.1 RANGE OF APPLICATION:
.1 For use over all types of roof decks in residential, commercial, industrial and institutional applications wherever single ply or built-up roofing is presently used.
.2 For use in “conventional” applications, fully-adhered, spot adhered or mechanically fastened on non-insulated or insulated roofs.
.3 For use in “protected membrane” applications under insulation.
1.2 DELIVERY, STORAGE, AND HANDLING
.1 Deliver and store materials undamaged in original packaging.
.2 Store rolls upright and protected from moisture; protect stored materials from elements.
.3 Condition membrane rolls prior to cold weather application, temperatures +4°C (+40°F) and colder.
1.3 SITE CONDITIONS
.1 Chemical limitations: membranes are not resistant to oils or most petroleum solvents; chemical compatibility chart available upon request.
.2 Slope Range: From dead level (except single ply) up to and including vertical. The choice of membrane combinations and their application method is governed by deck type, insulation and fastening capability, perceived stress and required finish. Please consult Baker Inc. for recommendations.
.3 Slope Limitations:
Recommended Slope 1.100 (1/8" in 12)
Mechanically Fasten over 1.12 (1" in 12)
1.4 STANDARDS AND APPROVALS (for specific membranes or assemblies consult manufacturer)
.1 Canadian General Standards Board: conforms to CGSB 37-GP-56M; tested at Ontario Research Facility from 1986 to 1988.
.2 Underwriters Laboratories: testing underway.
.3 Underwriters Laboratories of Canada: testing complete (Guide No. 360 018).
.4 Canadian Mortgage and Housing: Evaluation Report No. 11297.
.5 Factory Mutual: Testing underway
1.5 MANUFACTURER'S SERVICES
.1 Applicator Training, Field Technician assistance, specification and design assistance is available upon request.
1.6 EQUIPMENT
.1 Torches: Use only torches designed for torching roofing materials.
.2 Spray Equipment: Use only adhesive spray equipment as recommended by Monsey Baker Inc.
PART 2 -

1.1 PRODUCTS CHART

ROOF ASSEMBLY
Modified Plus Thickness (mm)
Membrane Designation (Note 1) Reinforcement Application
G100 p / p Base 2.5 glass torch
G100 p / s Base 2 glass mop / adhesive
G100 s / s Base 2 glass mop / adhesive
G100 Tack sheet Base 2.2 glass self adhesive
G100g M Cap 3.2 glass mop / adhesive
NP180 p / p Base 3 polyester torch
NP180 p / s Base 2.2 polyester mop / adhesive
NP180 s / s Base 2.2 polyester mop / adhesive
NP180 Tack Base 3 polyester self adhesive
NP180gM4 Cap 4 polyester mop/ adhesive
NP180gT4 Cap 4 polyester torch
NP180gT5 Cap 5 polyester torch
NP250gM4 Cap 4 polyester mop / adhesive
NP250gT4 Cap 4 polyester torch
NP250gT5 Cap 5 polyester torch
Notes
1) Thicknesses are measured on granules for cap sheets.
2) Standard colours are Autumn Brown and Cool Grey ceramic granules.
2.2 ANCILLARY PRODUCTS
.1 Asphalt: roofing grade asphalt conforming to CSA A123.4M Type 2 or Type 3.
Modified Plus 890-12: SEBS modified rubberized asphalt for use in standard kettles.
.2 MBA Gold (880-10) - fibrated rubberized asphalt adhesives designed specifically for bonding polymer modified and asphalt coated membrane systems.
.3 Primer:
Prograde 910-01 - A quality asphalt primer of thin brush or spray consistency.
Prograde 910-02 - An asphalt non penetrating tack free primer
Modified Plus Primer 900-34 - An SBS emulsion primer.
930-38 - An SBS primer for self adhesive sheets
Modified Plus Primer 930-18 - An SBS rubber base primer
.4 Underlay: Modified Plus Base s / s, Type IV, VI, Vapour-bloc or other RGC approved underlays for mop on systems.
.5 Reflective Coating:
Bakor Metalshield - An elastomeric polymer roof coating
Prograde 818 - Aquabrite Aluminum roof coating
Prograde 550 - Elastomeric White roof coating
.6 Re-cover Board: Prefabricated asphalt overlay board designed as an insulation or deck overlay for applying membranes either by mopping, cold adhesive, or torching.
PART 3 - EXECUTION
3.1 PREPARATION
.1 Ensure deck surfaces and substrates are acceptable for installation of the system and in accordance with RGC standards.
3.2 PRIMER
.1 Apply primer to all wood, concrete, gypsum, and metal surfaces directly receiving membrane. In some applications, primer is not recommended over gypsum type surfaces, contact Henry Company Canada representative for details.
3.3 VAPOUR RETARDER
.1 The selection and requirement for a vapour retarder is the responsibility of the design authority.
3.4 INSULATION
.1 Mechanically fasten insulation over nailable decks, in accordance with RGC Guarantee Standards.
.2 Embed insulation in a 1.5 kg / meter squared (30 lb / square) mopping of hot asphalt over non-nailable deck.
.3 Install 11 mm (7/16") asphalt-impregnated fibreboard, perlite or asphalt composite recover board as an insulation overlay where required by RGC Guarantee Standards.
.4 Install wood nailing strips on slopes exceeding 1:12 (1" in 12")
3.5 ROOF MEMBRANE APPLICATION
3.5.1 GENERAL
.1 Mop Application: Ensure mopping asphalt is heated to provide mopping temperatures not below +204°C (+400°F) when measured at the mop cart and apply asphalt at a rate of 1.2 to 1.5 kg / m² (25-30 lb / sq.). Unroll membrane into asphalt a maximum of 1.2 m (4') behind mopping application.
.2 Torch Application: Torch onto suitable substrate or base sheets, fully bonding membranes and ensuring fully bonded side and end laps.
.3 Adhesive Application: Apply MBA Gold (880-10) Adhesive according to Bakor’s recommendations.
.4 Self Adhered: Use NP180 Tack as base sheet and / or base stripping in two ply assemblies over acceptable substrates or structural deck. Contact Henry Company Canada representative for specific recommendations.
.5 Mechanically Fastened: Base sheets to be a minimum 180 g polyester and nailed 150 mm (6") o/c at edges and 300 mm (12") o/c both ways throughout the field. Consult Henry Company Canada for recommendations on screw and plates for mechanically fastening.
.6 Use of cant strips is optional; where not used, install base sheet to the base of vertical surface; where used, install base sheets to top of cant.
.7 Apply membrane parallel to slope on slopes of 1:12 (1" in 12) or greater and nail head laps 50 mm (2") in from top edge at 150 mm o/c.
.8 Use nails with tin discs or 25 mm (1") minimum diameter head semi-solidly attached.
.9 Offset membrane laps between plies a minimum of 300 mm (12") for side and 450 mm (18") for end laps.
.10 Lap base and cap sheets 75 mm (3") on sides and 150 mm (6") on ends.
.11 Cut corner of membrane to be overlapped on a 45 degree angle where T-joints occur at end laps of cap sheets.
3.5.2 BASE SHEET APPLICATION
.1 Start at low point of roof; unroll and align base sheet; lap sides 75 mm (3") and ends 150 mm (6"); carry membrane to the top of cant.
.2 Nailed base sheet:
  • Nail 150 mm (6") on centre at edges and 300 mm (12") on centre both ways throughout field.
.3 Mopped base sheet:
  • Apply 1.0 to 1.5 kg / m² (20 to 30 lb / square) hot asphalt evenly and consistently; mop maximum 1.2 m (4') ahead of roll.
  • Unroll base sheet into hot asphalt; apply even pressure on roll, do not kick out; ensure a small amount of asphalt is pushed out at seams.
.4 Torched base sheet:
  • Heat lower surface of membrane uniformly without excessive heat; heat both substrate and membrane simultaneously, fully bonding membrane.
  • Ensure sufficient heat applied to create a bleed out at all lap edges.
.5 Adhered base sheet: (use where other systems are not practical or acceptable)
  • Apply 0.75 to 1.0 L / m² (1.5 to 2.0 gal / square) of adhesive to prepared substrate. Contact Henry Company Canada for specific recommendations.
3.5.3 BASE MEMBRANE FLASHING APPLICATION
.1 Pre-cut flashing membrane to correct length to extend from 100 mm (4") on to the roof from toe of cant, up the cant, then up and over the fascia a minimum of 50 mm (2").
.2 Refer to Modified Plus flashing details.
.3 Vertical wall terminations should always (where applicable) be a minimum of 200 mm (8") above the roof surface.
3.5.4 CAP SHEET APPLICATION
.1 Unroll and align cap sheet parallel to base sheet; offset side laps 300 mm (12") and end laps 450 mm (18") minimum from those in base sheet.
.2 Lap sides 75 mm (3") and ends 150 mm (6"); carry membrane to top of cant, or to vertical wall if cants are not used.
.3 Mopped cap sheet:
  • Apply 1.0 to 1.5 kg / m² (20 to 30 lb / square) hot asphalt evenly and consistently; mop a maximum 1.2 m (4') ahead of roll.
  • Unroll cap sheet into hot asphalt; apply even pressure on roll, do not kick out; ensure a small amount of asphalt is pushed out at seams; sprinkle factory-supplied granules over asphalt bleed-out before it cools.
.4 Torched cap sheet:
  • Heat lower surface of membrane uniformly without excessive heat; heat both membrane and base sheet simultaneously.
  • Ensure sufficient heat is applied to create a noticeable bleedout at all lap edges, and cover bleedout with factory supplied granules.
  • Condition granular surfaces which are to be overlapped by heating and setting granules with a steel trowel.
.5 Adhesive Cap Sheet:
  • Apply 0.75 to 1.0 L / m² (1.5 to 2.0 gal / square) of adhesive to the base sheet according to Henry Company Canada’s recommendations.
  • Ensure fully adhered application including sufficient bleed out (maximum 1/4") and cover excessive bleed out with factory supplied granules.
3.5.5 CAP MEMBRANE FLASHING APPLICATION
.1 Pre-cut flashing membrane to correct length to extend from 150 mm (6") onto the flat portion of the roof and up and over the fascia to a minimum of 50 mm (2") or terminate a minimum of 50 mm (2") higher than the base stripping on the vertical wall.
.2 Use torch applied cap membrane flashing wherever practical.
.3 Refer to Modified Plus flashing details.

Manufacturer: HENRY COMPANY CANADA.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.1 EXPOSED MEMBRANE, UNINSULATED

Slope Limitation: No slope limitation

In-Service Performance: Min.: -40°C (- 14°F)

Temperature of the Max.: +93°C (+200°F)

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Plywood / Wood Prime surfaces to be directly adhered with bituminous materials. Tape plywood decks when directly adhering base sheet. Wood decks require nailed base sheet. Steel decks require a membrane underlay. Mechanically fastened membranes require pull out strength of 34 kg (75 lb) / per fastener.
Concrete
Steel
Separation Sheet Modified Plus Mechanically fastened over wood decks or plywood.
Base s/s
Underlay Gypsum Minimum 12.7 mm (1/2") thickness where required, mechanically fasten to steel deck.
Plywood
Vented base sheet Mop vented base sheet on concrete decks.
Asphalt Type 2 For slopes up to 1:16.
Type 3 For slopes greater than 1:16.
Base Sheet G100s / s Mop or adhesive applied.
G100p / s Mop or adhesive applied.
G100 p / p Torch applied.
NP180s / s Mop or adhesive applied.
NP180p / s Mop or adhesive applied.
NP180p / p Torch applied.
NP180 Tack Self adhesive
Cap Sheet G100gM Mop or adhesive applied.
NP180gM Mop or adhesive applied.
NP180gT4 Torch applied.
NP250gM4 Mop or adhesive applied.
NP250gT4 Torch applied.
NP250gT5 Torch applied.
Mastics / Sealants Polybitume SBS Mastic / sealant
/ Primers 900-34 SBS Emulsion Primer
910-01 Asphalt Primer
910-02 Asphalt Primer
930-38 Self adhesive sheets
930-18 SBS Rubber Base primer
Note: In lieu of modified cap sheets, two plies of modified base sheets may be used with a flood coat and gravel or a Henry Company Canada reflective roof coating with manufacturer’s recommended smooth surface modified cap sheet.
SINGLE PLY MEMBRANE (Minimum 1:16 [1/2" in 12"])
Cap Sheet NP180T4 Torch applied
NP250T4 Torch applied
Base Stripping NP180 p / p Torch applied before field membrane
NP180 Tack Self adhesive, applied before field membrane
Cap Stripping NP180T4 Torch applied after field membrane
NP250T4
Mastics / Sealants/ Primers Polybitume SBS Mastic / sealant
900-34 SBS Emulsion Primer
910-01 Asphalt Primer
910-02 Asphalt Primer
930-38 Self adhesive sheets
930-18 SBS Rubber Base Primer

Manufacturer: HENRY COMPANY CANADA. Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.2 EXPOSED MEMBRANE, INSULATED

Slope Limitation: No slope limitation

In-Service Performance: Min.: -40°C (-14°F)

Temperature of the Max.: +93°C (+200°F)

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Plywood / Wood Prime surfaces to be directly adhered with bituminous materials. Steel decks may require a thermal barrier between the deck and the insulation. Mechanically fastened membranes require pull out strength of 34 kg (75 lb) / sq. fastener.
Concrete
Steel
Thermal Barrier Gypsum Minimum 12.7 mm (1/2") may be required between steel deck and combustible insulations (see Building Code).
Vapour Retarder Vapour Bloc Requirement and placement determined by design authority.
G100 s / s
Modified Plus Base s / s
Insulation Fibrous Glass An acceptable overlay (one or two layers) is required over heat sensitive and foamed insulations.
Extruded polystyrene
Expanded polystyrene
Polyurethane
Polyisocyanurate
Fibreboard
Torch Safe
Perlite Roof Insulation
Fesco Board
Insulation Overlay 11 mm (7/16") asphalt- Where required. Install according to RGC Guarantee Standards.
impregnated fibreboard
12.7 mm (1/2") Perlite
Board
Asphalt Composite Board
Asphalt Type 2 For slopes up to 1:16.
Type 3 For slopes greater than 1:16.
Base Sheet G100s / s Mop or adhesive applied
G100p / s Mop or adhesive applied
G100p / p Torch applied
NP180s / s Mop / adhesive / mechanical
NP180p / s Mop / adhesive / mechanical
NP180p / p Torch / mechanical
NP180 Tack Sheet Self adhesive
Cap Sheet G100gM Mop or adhesive applied
Mop or adhesive applied
Torch applied
Torch applied
Mop or adhesive applied
Torch applied.
Torch applied.
Mastics / Sealants/Primers Polybitume SBS Mastic / sealant
900-34 SBS Emulsion primer
Asphalt Primer
Asphalt Primer
Self adhesive sheets
SBS Rubber Base Primer
Note: In lieu of modified cap sheets, two plies of modified base sheets may be used with a flood coat and gravel or a Henry Company Canada reflective roof coating with manufacturer’s recommended smooth surface modified cap sheet.

Manufacturer: HENRY COMPANY CANADA.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.3 PROTECTED AND MODIFIED PROTECTED MEMBRANE ROOF ASSEMBLY (PMR & MPMR)

Slope Limitation: 1:6 (2" in 12")

In-Service Performance: Min.: -40°C (- 14°F)

Temperature of the Max.: +93°C (+200°F)

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Plywood / Wood Prime surfaces to be directly adhered with bituminous materials. For PMR: steel decks require a levelling underlay.
Concrete
Steel
Underlay Gypsum board Minimum 12.7 mm (1/2") required over steel decks in a PMR assembly.
Plywood
Vented base sheet Mop vented base sheet on concrete decks (PMR).
Thermal Barrier Gypsum board Minimum 12.7 mm (1/2") may be required between steel decks and combustible insulations (see Building Code).
Vapour Retarder Vapour Bloc Requirement and placement determined by design authority.
G100 s / s
Modified Plus Base s / s
Insulation Fibrous Glass Under membrane in an MPMR. An acceptable overlay (one or two layers) is required over heat sensitive and foamed insulations.
Extruded polystyrene
Expanded polystyrene
Polyurethane
Polyisocyanurate
Fibreboard
Torch Safe
Perlite Roof Insulation
Fesco Board
Insulation Overlay 11 mm (7/16") asphalt-impregnated fibreboard Where required. Install according to RGC Guarantee Standards.
12.7 mm (1/2") Perlite Board
Asphalt Composite Board
Asphalt Type 2 For slopes up to 1:16.
Type 3 For slopes greater than 1:16.
Base Sheet G100s /s Mop or adhesive applied
G100p / s Mop or adhesive applied
G100p / p Torch applied
NP180s / s Mop or adhesive applied
NP180p / s Mop or adhesive applied
NP180p / p Torch applied
NP180 Tack Self adhesive
Cap Sheet G100gM Mop or adhesive applied
NP180gM4 Mop or adhesive applied
NP180gT4 Torch applied
NP180gT5 Torch applied
NP250gM4 Mop or adhesive applied
NP250gT4 Torch applied
NP250gT5 Torch applied
Insulation
(Over membrane)		 Extruded polystyrene To conform to CGSB51-GP-20M Type 4, loose-laid over membrane. Concrete-topped extruded polystyrene provides finished surface of roof.
Concrete-topped extruded polystyrene
Mastics / Sealants / Polybitume SBS Mastic / Sealant
Primers 900-34 SBS Emulsion Primer
910-01 Asphalt Primer
910-02 Asphalt Primer
930-38 Self Adhesive Sheets
930-18 SBS Rubber Base Primer
Filter Fabric 100% Polyolefin or pre-approved alternative Loose-laid.
Ballast Gravel According to insulation manufacturer's requirements.
Pavers On pedestals.
Manufacturer:

1 IKO INDUSTRIES LTD.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Country of Origin: Canada

Country of Manufacture: Canada, USA, Belgium, France

Year First Installed
B.C.: 1985
Canada: 1985

DESCRIPTION

The main components of the roofing and waterproofing systems are the TORCHFLEX and MODIFLEX membranes: tough, flexible, SBS polymer modified bitumen prefabricated sheets, appropriately reinforced and surface-finished for specific applications.

The highest quality raw materials are utilized in a manufacturing process which saturates and coats non-woven glass or polyester fabric with SBS polymer modified bitumen.

The membranes are installed on the job site by hot asphalt or propane torch welding, bonding the adjacent sheets and flashing plies to form an integral roofing / waterproofing system.

PART 1 - GENERAL

  1. The roofing assembly / material information published in the RGC Roofing Practices Manual does NOT represent a complete set of the manufacturer's published data, nor does it represent a detailed specification. The preparation of a detailed specification is the responsibility of the design authority.
    1. RANGE OF APPLICATION
      1. For use over roof decks in commercial, institutional, and industrial applications, wherever built-up roofing is presently used.
      2. As a loose-laid roofing membrane under ballast (gravel or pavers) and in protected membrane roof systems.
      3. As a fully-adhered or mechanically-fastened roofing membrane, without ballast; on flat, curved, or domed roofs, or unusual configurations.
      4. As a roofing membrane over existing roofs in recover or replacement applications.
    2. DELIVERY, STORAGE, AND HANDLING
      1. Deliver and store materials in original containers with manufacturer's labels and seals intact.
      2. Store rolls on end with selvage edge up, elevated from contact with ground and moisture, in weatherproof shelters; avoid prolonged exposure of light sensitive materials to sunlight.
      3. Below +5°C (+41°F), store rolls in heated enclosures prior to use; bring only enough for immediate use to the work area.
      4. Store combustible fluids and fuels away from heat and open flame.
    3. SITE CONDITIONS
      1. Slope range: from dead-level (except single-ply) up to and including vertical; the choice of membrane combination and its suitability to a particular slope is governed by the type of deck, insulation and fastening capability, application method, perceived stresses on the membrane, and its required finish; please consult IKO for assistance in identifying these factors and for recommended choice of materials.
      2. Slope limitations:
        • Minimum recommended slope 1:50 (1/4" in 12")
        • Mechanically fasten over 1:12 (1" in 12")
      3. Minimum ambient application temperature:
        • hot asphalt-applied -10°C (+14°F)
        • torch-applied -40°C (- 40°F)
        • adhesive-applied + 5°C (+41°F)
      4. Chemical limitations: incompatible with coal tar pitch; not resistant to oil or most petroleum products; consult IKO for specific requirements.
    4. STANDARDS AND APPROVALS
      (For specific membranes or assemblies consult manufacturer.) Canadian General Standards Board: conforms to CGSB 37-GP-56M
    5. MANUFACTURER'S SERVICES
      1. Applicator training: formal courses and field training leading to certification as an IKO installer are available.
      2. Field technicians: are available to advise and assist contractors in installation techniques, production, and quality control.
      3. Specification: a complete specification service and design assistance program is offered.
    6. EQUIPMENT
      Torches: use only torches designed for torch-on roofing material.
  2. PART 2 - PRODUCTS

    1. 1.1 ROOF MEMBRANES

PRODUCT NOMINAL THICKNESS
(mm)		 APPROX.WEIGHT
(kg / m sq)		 REINFORCING WEIGHT
(g / m sq)		 APPLICATION
Modiflex MF-95 CAP 3.5 4.1 95 fibreglass Hot asphalt or Cold adhesive
Modiflex MF-95 CAP FR 3.5 4.1 95 fibreglass Hot asphalt or Cold adhesive
Torchflex TF-95 CAP 3.5 4.3 95 fibreglass Torch weld
Modiflex MP-180-CAP 3.5 4.25 180 polyester Hot asphalt or Cold adhesive Torch weld or mechanically
Torchflex TP-180-CAP 4 4.82 180 polyester Torch weld
Torchflex TP-180 CAP3.5 3.5 4.3 180 polyester Torch weld
Torchflex TP-180 CAP 3.5 FR 3.5 4.3 180 polyester Torch weld
Torchflex TP-180-CAP-45 4.5 5.39 180 polyester Torch weld
Torchflex TP-180-CAP-50 5 5.42 180 polyester Torch weld
IKO Jardin 4 4 250 polyester Torch weld
Modiflex MP-250-CAP 4.5 4.88 250 polyester Hot asphalt or Cold Adhesive Torch weld or mechanically attached
Armourbond 180 3 3.45 180 polyester Self-adhering
Armourbond 95 2.5 4.7 95 fibreglass Self-adhering
Armourvent Base 2.8 2.67 95 fibreglass Self-adhering
Armourbond Flash 2 4.17 140 polyester Self-adhering
Armourgard Ice and Water 1.5 - - Self-adhering vapour retardant.
Armourtread 5 - 95 fibreglass Hot asphalt or Cold adhesive or Mechanically attached.
Fast-N-Stick-180 Base 2.5 4 180 polyester Hot asphalt or Cold adhesive or Mechanically attached, self adhering laps
IKO Armourbridge / Pont 5.5 5.2 180 polyester Torch weld
Modiflex MF-95-FS-BASE 2.2 3.17 95 fibreglass Mechanically attached (uninsulated wood decks only) or Hot asphalt or Cold adhesive
Modiflex MF-95-SS-BASE 2.2 2.54 95 fibreglass Hot asphalt or Cold adhesive or mechanically attached
Modiflex MP-180 SF 3.5 4.3 180 polyester Torch weld
Modiflex MP-180 SS (3mm) 3 3.5 180 polyester Mechanically attached (uninsulated wood decks only) or Hot asphalt or Cold adhesive.
Modiflex MP-180-FS-(3mm) 3 3.27 180 polyester Hot asphalt or Cold adhesive or mechanically attached
Modiflex MP-180-FS-BASE 2.2 2.66 180 polyester Hot asphalt or Cold adhesive or mechanically attached
Modiflex MP-180-SS-BASE 2.2 2.66 180 polyester Mechanically attached (uninsulated wood decks only) or Hot asphalt or Cold adhesive
Torchflex TF-95 FF 2.2 2.2 3.17 95 fibreglass Torch weld
Torchflex TF-95-FF-BASE 3 3.17 95 fibreglass Torch weld
Torchflex TP-180-FF-BASE 3 3.45 180 polyester Torch weld or mechanically attached
Torchflex TP-250 CAP 5 5 4.34 250 polyester Torch weld or mechanically attached
Torchflex TP-250 CAP ALUM 4.2 4.3 250 polyester Torch weld
Torchflex TP-250 FF 4 3.8 250 polyester Torch weld or mechanically attached
Torchflex TP-250-CAP 4 4.76 250 polyester Torch weld or mechanically attached
Torchflex TP-250-SF-BASE 4 4.53 250 polyester Torch weld
Torchflex TP-250-SS (4mm) 4 4.1 250 polyester Hot asphalt or Cold adhesive or Mechanically attached.
Prevent MP 180 Cap 3.5 3.99 180 polyester Torch weld
Prevent TP 180 Cap 4 4.93 180 polyester Torch weld
Prevent MP 250 Cap 4 4.44 250 polyester Torch weld or mechanically attached
Prevent TP 250 Cap 4 4.72 250 polyester Torch weld or mechanically attached
Prevent Premium MP 250 Cap 4 4.48 250 polyester Torch weld or mechanically attached
Prevent Premium TP 250 Cap 4 4.72 250 polyester Torch weld or mechanically attached
    1. ANCILLARY PRODUCTS
      1. Asphalt: roofing asphalt conforming to CSA A123.4-M Type 3.
      2. Nails: 12 gauge Simplex nails (minimum size: 1-1/2").
  2. PART 3 - EXECUTION
    1. LIMITATIONS / CAUTIONS
      1. Apply roofing materials over clean, dry surfaces in accordance with RGC good roofing practices.
      2. Use only compatible primers and adhesives, mastics, or sealants.
      3. Provide adequate protection against fire, particularly when using propane torch-applied membranes.
      4. Torch base sheets to suitable substrates only; many rigid insulations require suitable overlay. Wood fibreboard and fibrecants are not acceptable.
    2. PREPARATION
      1. Surfaces to receive membranes must be clean, dry, and primed with compatible primer as required.
    3. INSULATION
      1. Mechanically fasten insulation over nailable decks, in accordance with RGC Guarantee Standards.
      2. Embed insulation in a 1.5 kg / m² (30 lb / square) mopping of hot asphalt over non-nailable deck.
      3. Install 11 mm (7/16") asphalt-impregnated fiberboard as an insulation overlay where required by RGC Guarantee Standards.
      4. Install wood nailing strips on slopes exceeding 1:12 (1" in 12").
      5. Protectoboard is an accepted insulation overlay. In applications requiring two layers of overlay (i.e. over heat sensitive insulations), protected board is accepted as the second layer.
      6. Fasten Protectoboard overlay using nine fasteners per board, as shown, or alternately adhere Protectoboard with hot asphalt, according to RGC Guarantee Standards.
        5.1.2.1.jpg
    4. ROOF MEMBRANE APPLICATION
      1. Asphalt-adhered: apply asphalt to substrate at a rate of 1.2 to 1.5 kg / m² (25 to 30 lb / square), at minimum 205°C (400°F) and maximum 260°C (500°F) at point of application; mop no further than 1 m (3') ahead of unrolling material; lap sides 75 mm (3") and ends 150 mm (6") unless specified otherwise.
      2. Torch-adhered: torch on to suitable substrates or base sheets; lap sides 75 mm (3") and ends 150 mm (6").
      3. Adhesive-applied: install IKO's adhesives and membranes according to IKO's printed instructions.
      4. Use of cant strips is recommended. Where used, install base to the cant. Where not used, install base ply to the base of vertical surfaces.
      5. Start at low point and, where slopes are 1:15 (3/4" in 12") or less, start at right angles to the slope; on slopes greater than 1:15 (3/4" in 12") install parallel to the slope.
      6. Stagger end laps minimum 300 mm (12").
      7. Install base sheet stripping, starting at the outer edge of parapet, across top face, down inside vertical surface, over base sheet on cant strip (if present), and out a minimum of 150 mm (6") onto “flat” portion of roof, fully bonded throughout (unless specified otherwise); apply base sheet stripping over primed flanges of installed metal accessories.
      8. Install membrane cap sheet parallel to base sheet, with laps of cap sheet being offset a minimum of 300 mm (12") from those of base sheet, using same side and end laps as base sheet; embed granules (do not remove) prior to bonding onto granular surfaces.
      9. Limit asphalt / bitumen “bleed-out” at laps on granular surfaces to a maximum of 10 mm (3/8") width.
      10. Extend cap sheet stripping a minimum of 150 mm (6") onto “flat” portion of roof.
      11. Check laps with round-nosed roofing trowel as work proceeds; reseal unbonded areas and voids; repair punctures or tears with patches of similar materials torch-welded to surface.
      12. Consult IKO Industries Ltd. Technical Department for recommendations on fastener type, rates and pattern for mechanically attached membranes.

Manufacturer: IKO INDUSTRIES LTD.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.1 EXPOSED MEMBRANE,UNINSULATED

Slope Limitation: NO LIMIT

Slope Limitation: NO LIMIT
In-Service Performance: Min.: -18°C (+0°F) }
Temperature of the Min.: -18°C (0°F) Required membrane tensile strength varies.
Membrane: Min.: <-18°C (0°F)
Max.: +93°C (+200°F)

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Wood / Plywood Wood board decks require a nailed separation
Concrete sheet, insulation, or overlay board. Mechanically
Steel fastened membranes require a pullout strength of 34 kg (75 lb) per fastener. Steel deck requires underlay for membrane.
Underlay Plywood Minimum 12.7 mm (1/2") thickness required,
Gypsum mechanically-fastened to steel deck.
Asphalt Type 3 Mop-on permitted on slopes up to 1:4 (3" in 12"), torch-on preferred on slopes greater than 1:4 (3" in 12").
TWO-PLY MEMBRANE
Protection Sheet No.28 Glass Base Sheet Mechanically fastened over wood board decks or as an option to fully adhering to plywood.
Base Sheet Modiflex Hot asphalt or Cold adhesive or Mechanically attached.
Torchflex Torch-applied or Mechanically attached.
Armourbond Self-adhered membrane.
Armourvent Self-adhered vented membrane.
Cap Sheets Modiflex Hot asphalt or Cold adhesive or Mechanically attached.
Torchflex Torch-applied.
Flashing Membranes Base Ply Flashing material to be the same as the membrane being stripped but never less than 180 g/m² reinforcement and preferably torch-applied.
Cap Ply For torch application, use IKO's granular membrane with minimum 180 g/m² reinforcement. For hot asphalt or cold adhesive application use IKO’s granular membrane with sanded underside, minimum 180 g/m² reinforcement. As an option to a cap sheet, two plies of base sheet may be installed with a flood coat and gravel surfacing.
SINGLE-PLY MEMBRANE [Minimum Slope 1:16 (3/4" in 12")]
Granular Sheet Torchflex Cap Torch-applied. Maximum slope not limited.
Modiflex Cap Cold adhesive. Maximum slope is 3" in 12". Mechanically attached - consult IKO Technical Department regarding slope requirements.
Flashing Membrane
Base Ply Modiflex Base Torch asphalt or Cold adhesive or Mechanically attached.
Torchflex Base Torch applied or Mechanically attached.
Cap Ply Torchflex Torch applied
Modiflex Cap Hot asphalt or Cold adhesive.

Manufacturer: IKO INDUSTRIES LTD.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.2 EXPOSED MEMBRANE, INSULATED

Slope Limitation: NO LIMIT

Slope Limitation: NO LIMIT
In-Service Performance: Min.: -18°C (+0°F) }
Temperature of the Min.: -18°C (0°F) Required membrane tensile strength varies.
Membrane: Min.: <-18°C (0°F)
Max.: +93°C (+200°F)

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Wood / Plywood Prime upstands, curbs, and surfaces to be directly adhered with bituminous materials.
Concrete
Steel
Thermal Barrier Gypsum Minimum 12.7 mm (1/2") may be required between steel deck and combustible insulations (see Building Code).
Vapor Retarder No.28 Glass or pre-approved alternative Choice and use determined by local conditions.
Armourgard Ice and
Water Shield
Modiflex MF 95 SS Base
IKO Modified Vapour
Protector MVP
Insulation Fibrous glass A fibreboard overlay (one or two layers) is required over heat sensitive and foamed insulations.
Expanded polystyrene
Extruded polystyrene
Polyurethane
Fibreboard
Polyisocyanurate
Insulation Overlay 11 mm (7/16") asphalt-impregnated fibreboard Where required. Install according to RGC Guarantee Standards.
Asphalt composite
recover board
Asphalt Type 3 Mop-on permitted on slopes up to 1:8 (1-1/2" in 12"), torch-on is preferred. On slopes greater than 1:8 (1-1/2" in 12") torch-on is required.
TWO-PLY MEMBRANE
Base Sheet Modiflex Hot asphalt or torch-applied or cold adhesive or mechanically attached.
Torchflex Torch applied or mechanically attached.
Armourbond Self adhered to some rigid insulations. Contact manufacturer.
Armourvent Base Self-adhered vented base sheet adhered to some rigid insulations. Contact manufacturer.
Cap Sheet Modiflex Hot asphalt or cold adhesive or torch-applied.
Torchflex Torch-applied or mechanically attached.
Flashing Base Ply Flashing material to be the same as the membrane being stripped but never less than 170 g/m² reinforcement and preferably torch-applied.
Membranes Cap Ply For torched application, use IKO's granular membrane with minimum 180 g/m² reinforcement.

Manufacturer: IKO INDUSTRIES LTD.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.3 PROTECTED AND MODIFIED PROTECTED MEMBRANE ROOF ASSEMBLY (PMR & MPMR)

Slope Limitation: NO LIMIT

Slope Limitation: NO LIMIT
In-Service Performance: Min.: -18°C (+ 0°F) }
Temperature of the Min.: -18°C ( 0°F) Required membrane
Membrane: Min.: <-18°C ( 0°F) tensile strength varies.
Max.: +93°C (+200°F)

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Wood / Plywood For protected membranes: tape plywood joints and prime all surfaces to be directly bonded with bituminous materials. Wood board decks require a nailed protection sheet. Mechanically-fastened membranes require a pull-out strength of 34 kg (75 lb) per fastener. Steel decks require an underlay for the membrane.
For modified protected membranes: prime all curbs, upstands, and surfaces to be directly bonded with bituminous materials.
Underlay Plywood Minimum 12.7 mm (1/2") thickness required, mechanically fasten to steel deck under protected membranes.
Thermal Barrier Gypsum Minimum 12.7 mm (1/2") may be required between steel deck and combustible insulations (see Building Code).
Vapor Retarder No.28 Glass or pre- Modified protected membranes may require a vapour approved alternative retarder; its choice and use to be determined by local conditions.
Insulation Fibrous glass Under membrane in a Modified Protected Membrane
Expanded polystyrene Assembly. A fibreboard overlay (one or two layers) is required over heat sensitive and foamed insulations.
Extruded polystyrene
Polyurethane Asphalt core board overlays must be used for torch-applied membranes.
Fibreboard
Polyisocyanurate
Insulation Overlay 11 mm (7/16") asphalt-impregnated fibreboard Where required. Install according to RGC Guarantee Standards.
12 mm (1/2") exterior grade plywood, primed
Asphalt composite recover board.
Asphalt Type 3 Mop-on permitted on slopes up to 1:4 (3" in 12"), torch-on is preferred. On slopes greater than 1:4 (3" in 12") torch-on or mechanically attached is required.
TWO-PLY MEMBRANE
Base Sheet Modiflex Hot asphalt or torch-applied.
Torchflex Torch applied or mechanically attached
Armourbond Self-adhered membrane.
Armourvent Base Self-adhered vented base sheet membrane.
180 gm torchable For loose-laid ballasted system: lap sides 150 mm (6") and ends 200 mm (8"), and seal with a torch.
Top sheet Modiflex Hot asphalt or torch-applied or cold adhesive.
Torchflex Torch-applied.
Insulation Extruded polystyrene (Type 4) Loose-laid over roof membrane.
Concrete-topped extruded polystyrene (Type 4) Loose-laid, no filter fabric and ballast required.
Filter Fabric TR100 screen or pre-approved alternative Loose-laid over insulation, prior to ballast installation.
Ballast Pavers on pedestals Deck must be capable of withstanding loads. Gravel should be a minimum 16 mm (5/8") to a maximum 35 mm (1-3/8") diameter. Install according to insulation manufacturer's recommended application rate for the specified insulation thickness.
Gravel
Manufacturer:

1 MALARKEY ROOFING COMPANY

Contact Address: See Membership List Section 1

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Country of Origin: United States

Country of Manufacture: U.S.A.

Year First Installed
U.S.: 1978
Canada: 1979

DESCRIPTION

Malarkey Roofing has been manufacturing bituminous roofing products since 1956 and introduced SBS Modified Bituminous membranes in 1978. Only the highest quality raw materials are utilized in a manufacturing process which impregnates and coats fibreglass or Polyglass reinforced mats with SBS modified bitumen.

Malarkey manufactures a wide variety of membranes designed to satisfy the demands of varied roof and climatic conditions. These membranes are available with ceramic granules, metal foil or sanded finishes designed to be installed with hot asphalt, propane torch or cold-process adhesives in all types of roofing / waterproofing systems.

PART I - GENERAL
The roofing assembly / material information published in the RGC Roofing Practices Manual does NOT represent a complete set of the manufacturer's published data, nor does it represent a detailed specification. The preparation of a detailed specification is the responsibility of the design authority.
1.1 RANGE OF APPLICATION
.1 For use over roof decks in commercial, institutional and industrial applications, wherever built-up roofing is presently used.
.2 As a fully adhered 2-ply (or more) system on flat, curved or domed roofs over most types of insulation.
.3 As a roofing membrane over existing roofs in recover or replacement applications.
1.2 DELIVERY. STORAGE AND HANDLING
.1 Deliver and store materials in original containers showing product and manufacturer's name and date of manufacturer.
.2 Store rolls on end only, selvage edge up, elevated from contact with ground and moisture. Cover with plastic tarpaulin or place in weatherproof shelters so as to keep materials dry at all times.
.3 Distribute materials on roof to avoid concentrated loading, having first discarded rolls which may have been flattened, creased or otherwise damaged.
1.3 SITE CONDITIONS
.1 Slope range: from dead level up to and including vertical. The choice of membrane combination and its suitability for a particular slope is governed by the type of deck, insulation used, fastening capability, application method, type of finished surface of membrane and potential for stress on the membrane. Please consult Malarkey for assistance in identifying these factors and in determining the correct choice of materials.
.2 Slope Limitations:
Minimum recommended slope 1:50 (1/4" in 12")
Mechanically fastened over 1:8 (1-1/2" in 12")
.3 Minimum ambient application temperatures:
Hot asphalt applied -7°C (+20°F)
Torch applied determined by tolerance of applicator
Cold process applied +4°C (+40°F)
.4 Chemical incompatibility: incompatible with coat tar pitch. Not resistant to oil or most petroleum products. Consult Malarkey for specific requirements.
1.4 STANDARDS AND APPROVALS (for specific membranes or assemblies consult manufacturer)
.1 CAN / ULC Class A or B.
.2 Underwriters Laboratories Class A or B
.3 Factory Mutual meets or exceeds 190 test for wind uplift.
.4 Canadian General Standards Board conforms to CGSB 37-GP-56M.
.5 Warnock Hersey Listed
1.5 MANUFACTURER'S SERVICES
.1 Applicator training: warranted Malarkey Roofing Systems are applied by approved roofing contractors.
.2 Technical Services: a Local Malarkey representative is available for consultation and field training.
.3 Specifications / drawings available from specifications manual.
.4 Seminars presented upon request.
1.6 EQUIPMENT
.1 Torches: use only torches designed for torching roofing material.
PART 2 - PRODUCTS
2.1

1.1 ROOF MEMBRANES

PRODUCT THICKNESS (mm) FORCEMENT WEIGHT (kg/m sq) DESCRIPTION
Base Sheets
#603 Superbase™ 1.9 NWFG 3.7 Mop or cold-process applied base sheets in a 2-ply (or more) system
#60S Panoply® 1.8 FGS 2.4
#1000 ESHAvent® 2 NWFG 1.9 Self-stick vented base sheet for mopped or torched systems. Used without fibreboard overlay on insulated systems.
Cap Sheets
#601 3 NWPG 5
#625 Paragon 3.1 NWFG 5 Mop, torch or cold-process applied cap sheets in 2-ply (or more) system.
#650 Panoply® 3.8 FGS 5.9
#917 3-way Cap 4.6 NWPG 7.8
#919 Smooth 4.1 NWPF 6.8
#1020 ESHAlum® 4 NWFG 4.9 Aluminum faced cap sheet, mop or torch applied.
NOTES
(1) NWFG Non-woven fibreglass
(2) FGS Fibreglass scrim
(3) NWPG Non-woven Polyglass™
2.2 ANCILLARY PRODUCTS
.1 #950 SEBS mopping asphalt
.2 #705 cold process adhesive
.3 #727 Modified Bitumen Adhesive
PART 3 - EXECUTION
3.1 LIMITATIONS / CAUTIONS
.1 Apply roofing materials over clean, dry surfaces in accordance with RGC good roofing practices.
.2 Ensure roof has adequate slope to drain.
.3 Use only compatible adhesives / mastics / sealants.
.4 Provide adequate protection against fire, particularly when using propane torches.
.5 Apply base sheets with hot asphalt or cold process adhesive only to adequately prepared primed substrate.
.6 Ensure moisture, in any form, is completely removed from substrate prior to membrane application.
3.2 PRIMER
.1 Prime concrete, masonry, wood and metal surfaces to be directly bonded with bituminous membranes.
3.3 INSULATION
.1 Mechanically fasten insulation over nailable decks, in accordance with RGC Guarantee Standards.
.2 Embed insulation in a 1.5 kg / m² (30 lb / square) mopping of hot asphalt over non-nailable deck.
.3 Install 11 mm (7/16") asphalt impregnated fibreboard as an insulation overlay where required by RGC Guarantee Standards.
.4 Install wood nailing strips on slopes exceeding 1:8 (1-1/2" in 12").
3.4 MALARKEY BASE SHEET
.1 Start at low point and apply at right-angles to slope. Where slope exceed 1:6 (2" in 12") install parallel to slope.
.2 Asphalt-adhered: apply asphalt to substrate at a rate of 1.2 kg / m² (25 lb / square), at minimum 205°C. (400°F) for Type I asphalt up to 230°C (450°F) for Type 4 and SEBS asphalt, at point of application. Mop no further than 1.5 m (5') ahead of unrolling roll of material. Lap sides 50 mm (2") and ends 150 mm (6") unless otherwise specified.
.3 Cold-process adhered: apply to substrate at a rate of 0.8 L / m² (2 gal / sq.), at a minimum ambient temperature of 4°C (40°F). Lap sides 50 mm (2") and ends 150 mm (6"), unless otherwise specified.
.4 Backnail base sheet at 225 mm (9") o/c on slopes exceeding 1:8 (1-1/2" in 12"), into nailing strips if required.
.5 Carry base sheet to 50 mm (2") above top of cant unless otherwise specified.
3.5 MALARKEY CAP SHEET
.1 Starting at low point, in same direction as base sheet, unroll and align cap sheet. Cut into maximum 5.03m (16.5') lengths. Stagger end laps a minimum of 900 mm (3'). End laps and side laps to be a minimum of 450 mm (18") from laps in base sheet.
.2 Asphalt adhered: embed cap sheet in a full mopping of 1.2 kg / m² (25 lb / square) asphalt at minimum 205°C (400°F) for Type I asphalt up to 230°C (450°F) for Type 4 and SEBS asphalt at point of application. Mop no further than 1.5 m (5') ahead of unrolling material. Broom sheets to ensure smooth wrinkle-free application. Ensure bleed-out of asphalt at all seams to obtain 100% adhesion. Embed Loose granules in bleed-out.
.3 Cold-process applied: embed cap sheet in cold-process adhesive at a rate of 0.8 L / m² (2 gal / square). Broom sheets to ensure smooth wrinkle-free application. Ensure bleed-out of cement at all seams to ensure 100% adhesion. Embed loose granules in bleed-out.
.4 Torch adhered: torch onto suitable base sheet only. Ensure membrane is fully bonded as cap sheet is unrolled.
.5 Back-nail cap sheet at 225 mm (9") o/c on slopes exceeding 1:8 (1-1/2" in 12").
.6 Carry cap sheet 100 mm (4") above top of cant, and at least 150 mm (6") above finished roof system unless otherwise specified.
3.6 MALARKEY BASE AND CAP FLASHINGS
.1 Install Malarkey base and cap flashings to extend a minimum of 150 mm (6") onto roof from base of cant and at least 200 mm (8") above finished roof system, unless otherwise specified.

Manufacturer: MALARKEY ROOFING COMPANY

Contact Address: See Membership List Section 1

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.1 EXPOSED MEMBRANE, UNINSULATED

Slope Limitation: NO LIMIT

In-Service Performance:

Temperature of the Membrane:

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Plywood / wood Prime all surfaces to be directly adhered with bituminous materials.
Concrete
Steel
Underlay Gypsum Minimum 12.7 mm (1/2") mechanically fastened to steel deck.
Plywood
Asphalt Type 3 & 4 Asphalt type determined by roof slope and local climatic conditions.
SEBS asphalt
MULTI-PLY MEMBRANE
Separation sheet No. 501 sanded base Mechanically attach over wooden decks
No. 515 sanded base
Base Sheets No. 603 SUPERBASE®
No. 605 PANOPLY®
No. 1000 ESHAvent®
Cap Sheets No. 601 Mop or Cold process applied
No. 625 PARAGON Mop or Cold process applied
No. 650 PANOPLY® Mop or Cold process applied
No. 917 3-WAY CAP Mop, Torch or Cold process applied.
No. 919 SMOOTH Mop, torch or Cold process. Requires coating.
No. 1020 ESHAlum® Hot asphalt torch adhered.
Flashing membranes Base and granular cap Hot asphalt, cold-process or torch-weld sheet same as roof depending on membrane type.

Manufacturer: MALARKEY ROOFING COMPANY

Contact Address: See Membership List Section 1

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.2 EXPOSED MEMBRANE, INSULATED

Slope Limitation: NO LIMIT

In-Service Performance:

Temperature of the Membrane:

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Plywood / wood Prime all surfaces to be directly adhered with bituminous materials.
Concrete
Steel
Thermal barrier Gypsum Minimum 12.7 mm (1/2") may be required between steel deck and combustible insulations. (See Building Code)
Vapor retarder No. 501 Premium™ Base Requirement and placement determined by design authority.
Or Pre-approved alternative
Insulation Fibreboard A fibreboard overlay is required over heat sensitive and foamed insulations, and foamed except where Malarkey ESHAvent is used as a base sheet.
Perlite
Expanded Polystyrene
Extruded Polystyrene
Fibrous Glass
Other Pre-approved alternatives
Insulation Overlay 11 mm (7/16") asphalt Where required, install impregnated fibreboard according to RGC Guarantee Standards.
12 mm (1/2") exterior grade plywood primed
Asphalt Type 3 & 4 Asphalt type determined by roof slope and local climatic conditions.
SEBS asphalt
MULTI-PLY MEMBRANE
Separation sheet No. 501 sanded base Usually not required on insulated assembly.
No. 515 sanded base
Base sheets No. 603 SUPERBASE® Mop on to acceptable substrate.
No. 605 PANOPLY® Mechanically fasten to wooden decks.
No. 1000 ESHAvent.® Thermally adhered to substrate
Cap Sheets No. 601 Granular cap sheet hot asphalt or cold-process adhered.
No. 625 PARAGON
No. 650 PANOPLY®
No. 917 3-Way Cap Granular cap sheet hot asphalt, cold-process adhered or torch welded.
No. 919 Smooth Hot asphalt, cold-process or torch-weld. Needs coating.
No. 1020 ESHAlum® Hot asphalt or torch adhered.
Flashing membranes Base and granular cap sheet Hot asphalt, cold-process or torch-weld same as roof membrane depending on membrane type.

1.1.3 PROTECTED AND MODIFIED PROTECTED (PMR & MPMR)

Manufacturer: MALARKEY ROOFING COMPANY

Contact Address: See Membership List Section 1

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

PROTECTED AND MODIFIED PROTECTED
MEMBRANE ROOF (PMR & MPMR)

Slope Limitation: 1:4.8 (2-1/2" in 12")

In-Service Performance: Temperature of the Membrane:

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof deck Wood / plywood Prime all surfaces to be directly adhered with bituminous materials.
Concrete
Steel
Underlay Gypsum board Minimum 12.7 mm (1/2") mechanically attached to steel deck.
Plywood
Thermal Barrier Gypsum board Minimum 12.7 mm (1/2") may be required between steel deck and combustible insulations. (See Building Code).
Vapour Retarder No. 501 Premium™ Base
Or pre-approved alternative Requirement and placement determined by design authority.
Insulation Fibreboard A fibreboard overlay is required over heat sensitive and foamed insulations, except where Malarkey ESHAvent is used as a base sheet.
Perlite
Isocyanurate
Phenolic foam
Fibrous glass
Expanded polystyrene Under membrane in a Modified Protected Membrane Assembly.
Other pre-approved alternatives
Extruded polystyrene Over or under membrane in a MPMR Assembly.
Insulation overlay 11 mm (7/16") asphalt impregnated fibreboard Where required. Install according to RGC Guarantee Standards.
12 mm (1/2") exterior grade plywood, primed
Asphalt Type 3 & 4 Asphalt type determined by
SEBS asphalt roof slope and local climatic conditions.
MULTI PLY MEMBRANE
Base sheets No. 603 SUPERBASE™ Mop onto acceptable substrate.
Mechanically attach to wooden decks.
No. 605 PANOPLYX®
No. 1000 ESHAvent® Thermally adhered to substrate.
Cap Sheets No. 601 Granular cap sheet, hot asphalt adhered.
No. 625 PARAGON
No. 650 PANOPLY® Granular cap sheets, hot asphalt, cold process or torch weld.
No. 917 3-Way Cap
No. 919 Smooth Hot asphalt, cold-process or torch weld.
Flashing membranes Base and granular cap sheet same as roof Hot asphalt, cold-process or torch weld depending on membrane type.
Insulation Extruded polystyrene (Type 4) Loose-laid over membrane
Concrete-topped Loose-laid. No filter fabric and ballast required.
Extruded polystyrene (Type 4)
Filter Fabric 100% woven Polyolefin Loose-laid
Ballast Gravel To RGC Guarantee Standards.
Pavers Install according to insulation manufacturer's rates.
Manufacturer:

1 SIPLAST / ICOPAL

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Country of Origin: France

Country of Manufacture: France, USA, Germany, England, Poland, Denmark, Finland, Norway, Sweden, Slovakia

Year First Installed
B.C.: 1978
Canada: 1978
Foreign: 1967

1.1 Membrane Assemblies

MembraneAssemblies.jpg

Manufacturer: SIPLAST / ICOPAL

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Country of Origin: France

Country of Manufacture: France, USA, Germany, England, Poland, Denmark, Finland, Norway, Sweden, Slovakia

Year First Installed
B.C.: 1978
Canada: 1978
Foreign: 1967

1.1.1 B1

5.1.1.1.jpg

APPLICATION

1. PARADIENE 20 SERIES BASE SHEETS (adhesive) Install PA311 Adhesive in a 500mm band around perimeter and all protrusions. Install base sheet in PA311 Adhesive, applied at a rate of 5 – 200 mm diameter blobs per square meter coinciding with sides and center of base sheet. Install PA311 in sufficient height to make full contact with base sheet. Lap side joints 76 mm and end joints 150 mm. Stagger end joints a minimum of 300 mm. Seal all joints by heat welding.

PARADIENE 20TS BASE SHEET (heat activated) Prime the plywood deck. Heat the back of the sheet to fully defeat the protective film and warm the adhesive stripes. Install the sheet by rolling out onto the deck, adhered at the striped locations. Lap side joints 76 mm and end joints 150 mm. Stagger end joints a minimum of 300 mm. Seal all end joints by heat welding.
PARADIENE 20TS SA (self-stick) Prime the plywood deck. Install the base sheet by removing the protective paper on the underside and allowing the sheet to self adhere to the deck surface. Lap side joints 76 mm and end joints 150 mm. Stagger end joints a minimum of 300 mm. Remove the protective strip on side joints and allow the joints to adhere. Seal end joints by heat welding or cover strip and surface torch and roll all side joints.

2. Install base stripping as required. Consult Details section.

3. HEAT WELDED CAP SHEET

Install cap sheet, fully heat welded to base sheet. Lap side joints 76 mm and end joints 150 mm. Stagger end joints and joints between plies of membrane a minimum of 300 mm

ADHESIVE APPLIED CAP SHEET

Install the cap sheet by fully embedding in adhesive. Lap side joints 76 mm and end joints 150 mm. Stagger end joints and joints between plies of membrane a minimum of 300 mm.

Manufacturer: SIPLAST / ICOPAL

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Country of Origin: France

Country of Manufacture: France, USA, Germany, England, Poland, Denmark, Finland, Norway, Sweden, Slovakia

Year First Installed
B.C.: 1978
Canada: 1978
Foreign: 1967

1.1.2 B4

5.1.1.2.jpg

APPLICATION

1. If required, install the overlay, mechanically fastened, to the steel deck. Stagger end joints a minimum of 300 mm.

2. If required, install vapour retarder dry. Lap side joints 75 mm and end joints 150 mm. Stagger end joints a minimum of 300 mm. Seal joints.

3. Install insulation dry. Take care to ensure that no voids are created between insulation and substrate and between pieces of insulation. Stagger end joints of insulation a minimum of 300 mm. Mechanically fasten insulation to the deck with screws and 75 mm plates in accordance with current recommendations and regulations.

4. PARADIENE 20TS BASE SHEET (heat-activated) – Heat the back of the sheet to fully defeat the protective film and warm the adhesive stripes. Install the sheet by rolling out onto the insulation, adhered at the striped locations. Lap side joints 76 mm and end joints 150 mm. Stagger end joints a minimum of 300 mm. Seal all end joints by heat welding.

PARADIENE 20TS SA (self-stick) – Install the base sheet by removing the protective paper on the underside and allowing the sheet to self adhere to the insulation surface. Lap side joints 76 mm and end joints 150 mm. Stagger end joints a minimum of 300 mm. Remove the protective strip on side joints and allow the joints to adhere. Seal end joints by heat welding or cover strip and surface torch and roll all side joints.
PARADIENE 20 SERIES BASE SHEETS (ADHESIVE OR ASPHALT) - (Insulation overlay is required) Install the base sheet by fully embedding in hot asphalt or adhesive. Lap side joints 76 mm and end joints 150 mm. Stagger end joints a minimum of 300 mm.

5. Install base stripping as required. Consult Details section.

6. HEAT WELDED CAP SHEET – Install cap sheet, fully heat welded to base sheet. Lap side joints 76 mm and end joints 150 mm. Stagger end joints and joints between plies of membrane a minimum of 300 mm.

ADHESIVE APPLIED CAP SHEET – Install the cap sheet by fully embedding in adhesive. Lap side joints 76 mm and end joints 150 mm. Stagger end joints and joints between plies of membrane a minimum of 300 mm.

Manufacturer: SIPLAST / ICOPAL

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Country of Origin: France

Country of Manufacture: France, USA, Germany, England, Poland, Denmark, Finland, Norway, Sweden, Slovakia

Year First Installed
B.C.: 1978
Canada: 1978
Foreign: 1967

1.1.3 B6

5.1.1.3.jpg

APPLICATION

1. If vapour retarder is required, prime the concrete deck. Install the Paradiene 20TS S vapour retarder by heating the back of the sheet to fully defeat the protective film and warm the adhesive stripes. Install the sheet by rolling out onto the deck, adhered at the striped locations. Lap side joints 76 mm and end joints 150 mm. Stagger end joints a minimum of 300mm. Seal all end joints by heat welding.

2. Apply insulation adhesive to the concrete or Paradiene 20TS S surface according to current printed instructions issued by the manufacturer of the adhesive. Place the insulation boards onto the adhesive beads and follow the manufacturer's current printed instructions for attachment. Take care to ensure that no voids are created between insulation and substrate and between pieces of insulation. Stagger end joints of insulation a minimum of 300mm.

3. PARADIENE 20TS BASE SHEET (heat-activated) – Heat the back of the sheet to fully defeat the protective film and warm the adhesive stripes. Install the sheet by rolling out onto the insulation, adhered at the striped locations. Lap side joints 76mm and end joints 150 mm. Stagger end joints a minimum of 300 mm. Seal all end joints by heat welding.

PARADIENE 20TS SA (self-stick) – Install the base sheet by removing the protective paper on the underside and allowing the sheet to self adhere to the insulation surface. Lap side joints 76 mm and end joints 150 mm. Stagger end joints a minimum of 300 mm. Remove the protective strip on side joints and allow the joints to adhere. Seal end joints by heat welding and surface torch and roll all side joints.
PARADIENE 20 SERIES BASE SHEETS (ADHESIVE OR ASPHALT) - (Insulation overlay is required) Install the base sheet by fully embedding in hot asphalt or adhesive. Lap side joints 76 mm and end joints 150 mm. Stagger end joints a minimum of 300 mm.

4. Install base stripping as required. Consult Details section.

5. HEAT WELDED CAP SHEET – Install cap sheet, fully heat welded to base sheet. Lap side joints 76 mm and end joints 150 mm. Stagger end joints and joints between plies of membrane a minimum of 300 mm

ADHESIVE APPLIED CAP SHEET – Install the cap sheet by fully embedding in adhesive. Lap side joints 76 mm and end joints 150 mm. Stagger end joints and joints between plies of membrane a minimum of 300 mm.

Manufacturer: SIPLAST / ICOPAL

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Country of Origin: France

Country of Manufacture: France, USA, Germany, England, Poland, Denmark, Finland, Norway, Sweden, Slovakia

Year First Installed
B.C.: 1978
Canada: 1978
Foreign: 1967

1.1.4 Y1

5.1.1.4.jpg

APPLICATION

1. BASE STRIPPING PLY INSTALLED WITH MECHANICAL FASTENERS

Install the base stripping ply around the perimeter and protrusions, dry. Extend the base ply 300 mm onto the surface of the deck. Lap side joints 87 mm and seal by heat welding. Mechanically fasten the base stripping to the deck at 300 mm o/c. Staggered. Consult Details section.
BASE STRIPPING PLY INSTALLED BY SELF STICK METHOD
Prime all areas where base stripping ply is to be installed and allow primer to fully cure. Install self stick base stripping ply by removing the siliconized paper on the underside and allowing the sheet to self adhere to the previously primed surface. Extend the base ply a minimum of 300 mm onto the surface of the deck. Lap side joints 87 mm and seal by heat welding. Consult Details section.

2. PARAFOR 50 WS (MECHANICALLY FASTENED)

Install the membrane dry, and mechanically fasten to the deck along the outside edge of the selvage at 300 mm o/c. Lap side joints 200 mm and end joints 300 mm and seal by heat welding. Heat weld the membrane to the base stripping ply wherever they coincide.
PARAFOR 50 TS (HEAT ACTIVATED)
Prime the plywood deck. Heat the back of the sheet to fully defeat the protective film and warm the adhesive stripes. Install the sheet by rolling out onto the deck, adhered at the striped locations. Lap side joints 100 mm and end joints 300 mm. Stagger end joints a minimum of 300 mm. Seal all joints by heat welding. Heat weld the membrane to the base stripping ply wherever they coincide.

PARAFOR 50 TS SA (SELF-STICK)

Prime the plywood deck. Install the membrane by removing the protective paper on underside and allowing the sheet to self adhere to the wood deck. Lap side joints 100 mm end joints 300 mm. Stagger end joints a minimum of 300 mm. Seal all joints by heat welding. Heat weld the membrane to the base stripping ply wherever they coincide.

Manufacturer: SIPLAST / ICOPAL

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Country of Origin: France

Country of Manufacture: France, USA, Germany, England, Poland, Denmark, Finland, Norway, Sweden, Slovakia

Year First Installed
B.C.: 1978
Canada: 1978
Foreign: 1967

1.1.5 G3

5.1.1.5.jpg

APPLICATION

1. Prime surface to receive membrane and allow to fully cure.

2. Fully heat weld Terabase base sheet to the primed concrete substrate. Lap side joints 76 mm and end joints 150 mm.

3. Install base stripping ply as required. Consult Details sections.

4. Fully heat weld Teranap cap sheet to the base sheet. Lap all joints 150 mm. Stagger joints between plies of membrane a minimum of 300 mm.

5. Over Teranap membrane, install drainage medium.

6. Install filter cloth and earth fill, to suit chosen Green Roof Vegetation system.

Manufacturer:

1 SOPREMA INC.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Country of Origin: France

Country of Manufacture: Canada, France, Germany, Switzerland, USA

Year First Installed:
BC: 1979
Canada: 1979
Foreign: 1976

DESCRIPTION The main components of the roofing and waterproofing systems are the “Traditional”, “Sopralene” and “Elastophene” membranes, and the High Performance Composite systems, all tough, flexible SBS polymer modified bitumen prefabricated sheets, appropriately reinforced and surface finished for specific application.

The highest quality raw materials are utilized in a manufacturing process which saturates and coats non-woven glass, composite, or polyester fabric with SBS polymer modified bitumen.

The membranes are installed on the job site by hot asphalt, propane torch welding and cold and self adhesive techniques, bonding adjacent sheets and flashing plies to form an integral roofing/waterproofing system.

  1. PART 1 - GENERAL
    The roofing assembly / material information published in the RCABC Roofing Practices Manual does NOT represent a complete set of the manufacturer's published data, nor does it represent a detailed specification. The preparation of a detailed specification is the responsibility of the design authority.
    1. RANGE OF APPLICATION
      1. For use over roof decks in residential, commercial, institutional, and industrial applications, wherever built-up roofing is presently used.
      2. As a loose-laid roofing membrane under ballast (gravel or pavers) and in protected membrane roof systems.
      3. As a fully adhered, semi-adhered, self adhered or mechanically fastened roofing membrane, without ballast, on flat, curved or domed roofs or unusual configurations.
      4. As a roofing membrane over existing roofs in recover or replacement applications.
      5. As a fully adhered, semi-adhered, self adhered, or mechanically fastened roofing membrane covered by growing medium in green roof (Sopranature) applications.
    2. DELIVERY, STORAGE, AND HANDLING
      1. Deliver and store materials in original containers with manufacturer's labels and seals intact.
      2. Store rolls on end, selvage edge up, elevated from contact with ground and moisture, in weatherproof shelters; avoid prolonged exposure of light and heat sensitive materials to sunlight.
      3. Condition membrane rolls prior to cold weather application.
      4. Store combustible fluids and fuels away from heat and open flame.
    3. SITE CONDITIONS
      1. Slope range: from dead-level (except single-ply) up to and including vertical; the choice of membrane combination and its suitability to a particular slope is governed by the type of deck, insulation and fastening capability, application method, perceived stresses on the membrane, and its required finish; please consult Soprema for assistance in identifying these factors and the recommended choice of materials.
      2. Slope limitations:
        recommended slope 1:100 (1/8" in 12")
        mechanically fasten over 1:12 (1" in 12")
      3. Minimum ambient application temperature:
        hot asphalt-applied -10°C (+14°F)
        torch-applied -40°C (- 40°F)
        adhesive-applied +5°C (+41°F)
        self-adhesive-applied +5°C (+41°F)
        self-adhesive applied (base flashing) -10°C (+20°F)
        mechanically fastened -40°C (-40°F)
      4. Chemical limitations: incompatible with coal tar pitch; not resistant to oil or most petroleum products; consult Soprema for specific requirements.
    4. STANDARDS AND APPROVALS (for specific membranes or assemblies consult manufacturer)
      1. Canadian General Standards Board: conforms to CGSB 37-GP-56M; tested at Ontario Research Facility in 1987.
      2. Factory Mutual Engineering and Research: demonstrates I-90 wind uplift resistance and Class 1 fire resistance.
      3. Underwriters Laboratories: Report R 13372.
      4. Underwriters Laboratories of Canada: in process as of March 1, 1988.
      5. Canadian Mortgage and Housing: Evaluation Report No. 10415.
      6. Other: D.I.N., Agreement, S.I.A.
      7. ISO 9001 and ISO 14001
    5. MANUFACTURER'S SERVICES
      1. Applicator Training: formal courses and field training leading to certification as a Soprema installer are available.
      2. Field Technicians: are available to advise and assist contractors in installation techniques, production and quality control.
      3. Specifications: a complete specification service and design assistance program is offered.
    6. EQUIPMENT
      1. Torches: use only torches designed for torching roofing material; pre-approved by Soprema Inc.
  1. PART 2 - PRODUCTS

    1. 1.1 ROOF MEMBRANES



NOMINAL
REINFORCEMENT OVERALL WEIGHT
PRODUCT (NOTE 1) THICKNESS (mm) (kg/m sq) APPLICATION
Sanded Base Sheets (sanded both sides)
Elastophene S GF 2.2 2.7 Hot Asphalt
Elastophene 180 S NWP 2.2 2.5 Hot Asphalt
Sopralene 180 S NWP 3 3.5 Hot Asphalt/Torch Welded/Adhesive
Sopralene 250 S NWP 4 5.2 Torch Welded/Adhesive
Mopped / Torch Welded Cap Sheets (granular top surface, sanded bottom surface)
Elastophene (FR) GR GF 2.3 4.1 Hot Asphalt
Sopralene 180 (FR) GR NWP 3.7 5 Hot Asphalt/Torch Welded/Adhesive
Sopralene 250 (FR) GR NWP 4 4.8 Torch Welded/Adhesive
Torch Welded Base Sheets (Polypropylene Film Finished Both Sides)
Elastophene Flam GF 2.2/3.0 2.9/3.8 Torch
Sopraflash Composite 3 3.5 Torch Welded (5)
Sopralene Flam 180 NWP 3 3.6 Torch / Mechanically Fastened
Sopralene Flam 250 NWP 4 4.8 Torch / Mechanically Fastened
Sopraply Base 520 Composite 2.5 3.1 Torch Welded
Self-Adhesive Base & Base Stripping Sheets (Self-Adhesive Underface, Polyethylene Film Top Face)
Elastophene Flam Stick WG 2.5 3.1 Self-Adhesive (4)
Sopraflash Flam Stick GF 2.5 3.5 Self-Adhesive (4)
Sopralene Flam Stick NWP + GG 3 3.7 Self-Adhesive (4)
Self-Adhesive Base & Base Stripping Sheets (Self-Adhesive Underface, Sanded Top Face)
Sopralene Stick Adhesive NWP + GG 3 3.5 Self-Adhesive
Sopraflash Stick GF 2.5 3.5 Self-Adhesive (4)
Torch Welded Cap Sheets (Polypropylene Film Underface)
Colvent Traffic Cap 860 Composite 4 4.5 Torch Welded
Colvent Traffic Cap FR 861 Composite 4 4.5 Torch Welded
Elastophene Flam (FR) GR GF 2.5 4.4 Torch Welded
Soprafix Cap 650 GF 3.5 4.3 Torch Welded
Soprafix Cap FR 651 GF 3.5 4.3 Torch Welded
Soprafix Traffic Cap 660 Composite 4 4.5 Torch Welded
Soprafix Traffic Cap FR 661 Composite 4 4.5 Torch Welded
Sopralene Flam 180 (FR) GR NWP 4 4.9 Torch Welded
Sopralene Flam 250 (FR) GR NWP 4 4.8 Torch Welded
Sopralene Flam 350 (FR) GR NWP 5 6.2 Torch Welded
Sopralene Flam Antirock NWP 4.5 5.6 Torch Welded
Sopralene Mammouth (FR) GR NWP 5 6.1 Torch Welded
Sopraply Cap 550 GF 3.5 4.3 Torch Welded
Sopraply Cap FR 551 GF 3.5 4.3 Torch Welded
Sopraply Traffic Cap 560 Composite 4 4.5 Torch Welded
Sopraply Traffic Cap FR 561 Composite 4 4.5 Torch Welded
SopraStar Flam HD GR Composite 3.5 3.9 Torch Welded
Mechanically Fastened Cap Sheets (Polypropylene or Sanded Lap, Sanded Underface)
Soprafix Unilay 750 NWP 5 6.1 Torch Seam/Mechanically Fastened (5) (Insulated and uninsulated systems)
Soprafix Unilay 760 NWP 5 6.1 Adhesive Seam /Mechanically Fastened (5) (Insulated and uninsulated systems)
Laminate Base Sheets (Fire Retardant Fiberboard, Polypropylene Film Top Face)
Soprabase FR GF 12 13.6 Hot Asphalt / Mechanically Fastened (4) or Adhesive
Soprabase 180 FR NWP 12 13 Hot Asphalt / Mechanically Fastened (4) or Adhesive
Laminate Base Sheets (Non-combustible Mineral Wool, Polypropylene or Sanded Top, Self Adhesive/Heat Sealed Lap)
Xpress Board NWP 12-125 5.3-25.4 Mechanically Fastened
Xpress EPS NWP 37-115 Adhesive/Mechanically Fastened
Xpress ISO NWP 37-115 Adhesive/Mechanically Fastened
PS Base Sheets (Sand Underface, Polypropylene Film Top Face)
Elastophene 180 PS NWP 2.2 2.5 Hot Asphalt/Adhesive/Mech. Fasten
Elastophene 180 PS DG NWP 2.2 2.5 Hot Asphalt/Adhesive/Mech. Fasten
Elastophene PS GF 2.2 2.7 Hot Asphalt or Adhesive
Perimeter Membrane GF 2.2 2.7 Hot Asphalt or Adhesive
Soprafix Base 610 Composite 2.5 3.1 Mechanically Fastened (5)
Soprafix Base 630 Composite 2.5 3.1 Mechanically Fastened (5)
Sopralene 180 PS NWP 3 3.7 Hot Asphalt or Adhesive
Sopralene 180 SP 3.5 NWP 3.5 4.2 Torch Welded Exclusively
Sopraply Base 510 Composite 2.5 3.2 Hot Asphalt or Adhesive
Self Adhesive Base Sheets
Colphene 1500 HDPE 1.5 1.5 Self Adhesive (5)
Colvent 810 HDG 2.6 3 Self Adhesive (5)
Colvent 820 HDG 2.6 3 Self Adhesive (5)
Self Adhesive Cap Sheets
Colphene Granular GM 3.4 4.3 Self Adhesive (5)
Colphene Granular HR Composite 3.8 4.5 Self Adhesive (5)
Adhesive Applied Base and Cap Sheets
Colply Base 410 Composite 2.5 3.2 Adhesive (5)
Colply Cap 450 GF 3.5 4.3 Adhesive (5)
Colply Cap FR 451 GF 3.5 4.3 Adhesive (5)
Colply Traffic Cap 460 Composite 3.5 4.3 Adhesive (5)
Colply Traffic Cap FR 461 Composite 3.5 4.3 Adhesive (5)
Soprafix Base 620 Composite 2.5 3.1 Adhesive (5)
Soprafix Base 640 Composite 2.5 3.1 Adhesive (5) / Mech. Fastened
Soprafix Cap 670 GF 3.5 4.3 Adhesive (5)
Soprafix Cap FR 671 GF 3.5 4.3 Adhesive (5)
Soprafix Traffic Cap 680 Composite 3.5 4.3 Adhesive (5)
Soprafix Traffic Cap FR 681 Composite 3.5 4.3 Adhesive (5)
Foil-Faced Cap Sheets/Flashing Plies
Aerisol Flam GF N/A 1.5 Perforated Underlay
Associated Membrane Materials
Baral (Vapour Retarder) Alu Foil 2 1.7 Hot Asphalt (see Note 3)
Lastobond 195 GF 1.6 1.7 Self-adhesive
Lastobond 240 GF 1.6 1.9 Self-adhesive
Lastobond Shield HT GF 1 1.2 Self-adhesive
Lastobond Shield GF 1 1.2 Self-adhesive
Lastoflex GF 1.4 1.9 Mech. Fastened
Roofing Underlayment / Eave Protection / Metal Flashing Underlayment
Sopraglass 100 GF 1.5 1.6 Hot Asphalt (see Note 3)
Sopraglass 40 GF 1.2 0.9 Hot Asphalt (see Note 3)
Soprajoint KP 4 6.1 Torch Welded
Sopralast 50 TV Alu GF 4 4.4 Torch Welded
Sopralast TV Copper GF 4 4.2 Torch Welded
Sopralene Flam 180 Cu & Al NWP 3 4.6 Torch Welded
Sopraseal Stick 1100 N/A 1.1 1.2 Self-adhesive
Sopravap’r (Vapour Retarder) HDPE 0.85 0.8 Self Adhesive
Accessories
Alsan Flashing Microfab
Colply Adhesive (Brush / Trowel Grade) Sopraboard
Coltack (insulation adhesive) Soprafilter
Duotack (insulation adhesive) Sopramat - Traffic Pad
Elastocol 350 Primer Pitch Pocket Filler
Elastocol 500 Primer Sopramastic
Elastocol 700 Primer Sopramastic ALU
Elastocol Stick H2O Primer Soprafix Plates
Elastocol Stick Primer Sopradrain
Sopralap Soprasphalte M
    1. Notes
    1. (1) FR - Flame Retardant, GF-Glass Fleece, NWP = Non-woven Polyester; HDG = Heavy Duty Glass, HDPE = Heavy Duty Polyethylene, W.G. = Woven Glass Scrim; GM = Glass Mat, K.P. = Knit Polyester, PP = Polypropylene, Non-woven, Composite - combination of glass & polyester.
      (2) Surface bitumen is blended oxidized asphalt.
      (3) Requires a torched cap sheet.
      (4) Consult Soprema Inc. for specific application and use.
      All granular finishes are available in a choice of grey, brown, sienna, green, red, blue or black colours. “Base sheets” (except “Flam Sticks”) may be used as top plies in ballasted or protected membrane systems.
    1. ANCILLARY PRODUCTS
      1. Asphalt: roofing asphalt conforming to CSA A123.4M Type 3
      2. SEBS Modified Asphalt: roofing asphalt conforming to ASTM D6125
  1. PART 3 - EXECUTION
    1. LIMITATIONS / CAUTIONS
      1. Apply roofing materials over clean, dry surfaces in accordance with RGC good roofing practices.
      2. Use only compatible primers and adhesives / mastics / sealants.
      3. Do not torch direct to flammable substrates.
      4. Provide adequate protection against fire, particularly when using propane torch applied membranes.
      5. Torch base sheets to suitable substrates only; many rigid insulations require a suitable overlay; wood fibreboard and fibrecants are not acceptable.
    2. PREPARATION
      1. Surfaces to receive membranes must be clean, dry, and primed with compatible primer as required.
    3. INSULATION
      1. Mechanically fasten insulation over nailable decks, in accordance with RGC Guarantee Standards.
      2. Embed insulation in a 1.5 kg / m² (30 lb / square) mopping of hot asphalt over non-nailable deck or adhere with Coltack or Duotack adhesive, or other approved adhesives.
      3. Install 11 mm (7/16") asphalt-impregnated fibreboard, 4.5mm Sopraboard, 12mm Xpress Board, Xpress EPS, Xpress ISO, or 12mm SoprabaseFR as an insulation overlay where required by RGC Guarantee Standards.
      4. Install wood nailing strips on slopes exceeding 1:12 (1" in 12"), or as required.
    4. ROOF MEMBRANE APPLICATION
      1. Asphalt-adhered: apply asphalt to substrate at a rate of 1.2 to 1.5 kg / m² (25 to 30 lb / square), at minimum 205°C (400°F) and maximum 230°C (450°F) at point of application; mop no further than 1 m (3' ) ahead of unrolling roll of material; lap sides 75 mm (3") and ends 150 mm (6") unless specified otherwise. Soprasphalte M is recommended for all interply mopping of membranes. Contact manufacturer for application recommendations using SEBS Modified Soprasphalte M.
      2. Torch-adhered: torch onto suitable substrates or base sheets, fully bond membrane; lap sides 75 mm (3") and ends 150 mm (6") or as required by the applicable system assembly.
      3. Adhesive-applied: install Colply Adhesive Brush / Trowel and membranes according to Soprema's printed instructions.
      4. Self-adhered: Membranes used in base/cap field or stripping plies in 2 ply assemblies require substrate priming with Elastocol Stick, Elastocol 350, or Elastocol Stick H2O in almost all applications. Contact manufacturer for possible exceptions.
      5. Use of cant strips is optional; where used, install base sheet to bottom or top of cant; where not used, install base sheet to the base of vertical surfaces. Fiberboard Cant is not acceptable except in hot mopped asphalt applications.
      6. Start at low point and where slopes are 1:15 (3/4" in 12") or less at right angles to the slope; on slopes greater than 1:15 (3/4" in 12") install parallel to the slope.
      7. Stagger end laps minimum 300 mm (12") except in systems when soldiering and seam overlays are recommended.
      8. Consult Soprema Inc. for membrane flashing details; where gravel stop details are utilized, mastic under the gravel stop flange is required.
      9. Install base sheet stripping, starting at the outer edge of parapet, across top face, down inside vertical surface, over base sheet on cant strip (if present), and out minimum of 100 mm (4") onto field portion of roof. Apply base sheet stripping over primed flanges of installed metal accessories.
      10. Install membrane cap sheet parallel to base sheet, with laps of cap sheet being offset minimum of 300 mm (12") from those of base sheet, using same side and end lap widths as base sheet; embed granules (do not remove) prior to bonding onto granular surfaces.
      11. Limit asphalt / bitumen "bleed-out" at laps on granular surfaces to a maximum of 6 mm (1/4") width; conceal excess "bleed-out" and repair damaged granular finishes with matching loose granules from manufacturer.
      12. Extend cap sheet stripping minimum of 150 mm (6") onto field portion of roof, extend to top inside corner of parapets, or terminate 25 mm (1") higher than base stripping on walls.
      13. Check laps with round-nosed roofing trowel as work proceeds; reseal unbonded areas and voids; repair punctures or tears with patches of similar materials torch-welded to surface.
      14. Consult Soprema Inc. for recommendations on fastener type and pattern for mechanically fastened membranes.
      15. Consult Soprema Inc. for specific application and use for adhesive applied systems.

Manufacturer: SOPREMA INC.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.1 EXPOSED MEMBRANE, UNINSULATED

Slope Limitation: NO LIMIT
In-Service Performance: Min.: -18°C (+0°F) } Required membrane tensile strength varies.
Temperature of the Min.: <-18°C (0°F)
Membrane: Max.: +93°C (+200°F)

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Plywood / Wood Tape plywood joints and prime surfaces to be directly adhered with bituminous materials. Wood board decks require a nailed separation sheet. Mechanically-fastened membranes require a pull-out strength of 34 kg (75 lb) per fastener. Concrete deck requires a perforated underlay below membrane. Steel deck requires an underlay for membrane.
Concrete
Steel
Underlay Plywood Minimum 12.7 mm (1/2") thickness required, mechanically fasten to steel deck.
Gypsum
Asphalt ReCover Board
Soprabase Products
Xpress Board Products
Asphalt Type 3/Soprasphalte M Mop-on permitted on slopes up to 1:4 (3" in 12"), torch welded preferred on slopes greater than 1:4 (3" in 12").
TWO-PLY MEMBRANE
Separation Sheet Sopraglass 40 or 100 Mechanically-fastened over wood board decks or as an option to fully adhering to plywood.
Base Sheet Sanded base sheet Hot asphalt/torch welded/adhesive
"Flam" base sheet Torch welded.
"PS" base sheet Hot asphalt/mechanically fastened/adhesive
Self Adhesive base sheet Self adhered to acceptable primed surfaces
Colply Base 410 Cold adhesive applied.
Soprafix Base Sheets Mechanically Fastened
As an option to a cap sheet, two plies of base sheet may be installedwith a pour coat andgravel surfacing.
Cap Sheets Granular cap sheet Hot asphalt or torch welded.
“Flam” granular cap sheet Torch welded.
Self Adhesive cap sheet Self Adhered to acceptable primed surfaces
Foil-faced cap sheet Torch welded.
SopraStar HD GR Cap Sheet Torch Welded/Self Adhesive/Cold Adhesive
Colply Cap 450/460 Cold adhesive applied.
Soprafix Cap Sheets Torch Welded/Cold Adhesive
Flashing Membranes Base Ply Flashing material to be the same reinforcement weight or greater as base sheet membrane. Torch applied flashings are to be 180 g/m² NWP or composite reinforced. Use Stick for torch sensitive substrates.*
Cap Ply Torch welded, or cold adhesive applied granular membrane with 180 g/m² NWP or composite reinforcement.
* Elastocol Stick/ Stick H²O primer and torch applied cap sheet is required.
SINGLE-PLY MEMBRANE [Minimum 1:16 (3/4" in 12")]
Granular Sheet Sopralene Flam180 / 250 GR Torch welded. Maximum slope not limited.
Soprafix Unilay 750 Mechanically fastened, torch welded seam.
Soprafix Unilay 760 Mechanically fastened, adhered seam.
Flashing Membrane
Base Ply Sopralene Flam 180 Torch welded prior to granular cap sheet.
Sopraflash Torch welded prior to granular cap sheet.
Sopraflash Flam Stick Self Adhered prior to granular cap sheet.
Sopraflash Stick Self Adhered prior to granular cap sheet.
Sopralene Flam Stick Self adhered prior to granular cap sheet.
Sopralene Stick Adhesive Self adhered prior to granular cap sheet.
Cap Ply Sopralene Flam 180 / 250 GR Torch welded after granular cap sheet.
Sopraply Traffic Cap 560 Torch welded after granular cap sheet.
Colply Traffic Cap 460 Cold adhesive applied after granular cap sheet.
Mastics / Adhesives Sopramastic Compatible with SBS modified membranes.
Sopramastic Alu
Colply Adhesive
Brush / Trowel Grade
Coltack/Duotack
Alsan Flashing
Walkways Sopralene Flam
250 / 350 GR Torch welded
Sopraply Traffic Cap 560 Torch welded
Sopramat Apply over loose isolation membrane cap sheet or bonded with recommended adhesive over fully welded isolation membrane cap sheet.
Soprawalk Torch Welded

Manufacturer: SOPREMA INC.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.2 EXPOSED MEMBRANE, INSULATED

Slope Limitation: NO LIMIT
In-Service Performance: Min.: -18°C (+ 0°F) } Required membrane tensile strength varies.
Temperature of the Min.: <-18°C ( 0°F)
Membrane: Max.: +93°C (+200°F)

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Plywood / Wood Prime surfaces to be directly adhered with bituminous materials. Steel decks may require a thermal barrier between the deck and the insulation. Mechanically fastened membranes require pull out strength of 34 kg (75 lbs.) / sq. fastener.
Concrete
Steel
Thermal Barrier Gypsum Minimum 12.7 mm (1/2") may be required between steel deck and combustible insulations (see Building Code).
Cementicious Boards
Vapour Retarder Baral Choice and use determined by local conditions.
Elastophene sanded
Sopraglass 100
Sopravap’r
Sopraseal Stick 1100
Insulation Fibrous glass An overlay (one or two layers) is required over heat sensitive and foamed insulations. Cementicious or asphalt recover board overlays must be used for torch welded membranes.
Expanded polystyrene
Extruded polystyrene
Polyisocyanurate
Fibreboard
Xpress Board Products
Insulation Overlay 11 mm (7/16") asphalt-Impregnated fibreboard Where required. Install according to RGC Guarantee Standards
12 mm (1/2") exterior grade Plywood, primed
Asphalt recover board
Cementicious board
Soprabase (180) FR
Xpress Board Products
Asphalt Type 3/Soprasphalte M Mop-on permitted on slopes up to 1:4 (3" in 12"), torch welding is preferred on slopes greater than 1:4 (3" in 12").
TWO-PLY MEMBRANE
Base Sheet Sanded base sheet Hot asphalt/Torch welded/Adhesive
“PS” base sheet Hot asphalt/Mech. Fastened/Adhesive
“Flam” base sheet Torch welded.
“Flam Stick” base sheet Self-adhered to SOME rigid insulations. Contact Manufacturer
Colply Base 410 Cold Adhesive Applied
Soprafix Base Sheets Mechanically Attached
Cap Sheet Granular cap sheet Hot asphalt or torch welded.
“Flam” granular cap sheet Torch welded.
Self Adhesive cap sheet Self Adhered to acceptable primed surfaces
Foil-faced cap sheet Torch welded.
SopraStar Flam HD GR Torch Welded/Self Adhesive/Cold Adhesive
Colply Cap 450 / 460 Cold adhesive applied.
Base sheet (except "Flam Stick") Top ply can be a sanded base sheet with a pour coat and gravel surfacing.
Soprafix Cap Sheets Torch Welded/Adhesive
Flashing Membranes Base Ply Flashing material to be the same reinforcement weight or greater as base sheet membrane. Torch applied flashings are to be 180 g/m² NWP or composite reinforced. Use Stick products for torch sensitive substrates.*
Cap Ply Torch welded Sopralene granular membrane with minimum 180 g/m² NWP.
Mastics / Adhesives/ Sealants Sopramastic Compatible with SBS modified membranes.
Sopramastic Alu
Colply Adhesive Brush / Trowel Grade
Coltack/Duotack
Alsan Flashing
Walkways Sopralene Flam 250/350 Gr. Torch welded
Sopraply Traffic Cap 560 Torch Welded
Sopramat Apply over loose isolation membrane cap sheet or bonded with recommended adhesive over fully welded isolation membrane cap sheet
Soprawalk Torch Welded
*Elastocol Stick/Stick H²O primer and torch applied cap sheet is required


Manufacturer: SOPREMA INC.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES

Roof Assembly:

1.1.3 PROTECTED AND MODIFIED PROTECTED (PMR & MPMR)

MEMBRANE ROOF ASSEMBLY (PMR & MPMR)

Slope Limitation: NO LIMIT
In-Service Performance: Min.: -18°C (+ 0°F) } Required membrane tensile strength varies.
Temperature of the Min.: <-18°C ( 0°F)
Membrane: Max.: +93°C (+200°F)

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Plywood / Wood For protected membranes: tape plywood joints and prime all surfaces to be directly bonded with bituminous materials. Wood board decks require a nailed separation sheet. Mechanically-fastened membranes require pull-out strength of 34 kg (75 lb) per fastener. Steel decks require an underlay for the membrane. For modified protected membranes: prime all curbs, upstands, and surfaces to be directly bonded with bituminous materials.
Concrete
Steel
Underlay Plywood Minimum 12.7 mm (½") thickness required, mechanically fasten to steel deck under protected membranes.
Thermal Barrier Gypsum Minimum 12.7 mm (½") may be required between steel deck and a roof system using combustible insulations (see Building Code).
Vapour Retarder Baral Modified protected membranes may require a vapour retarder, the choice and use of which is determined by local conditions.
Elastophene sanded
Sopraglass 100
Sopravap’r
Insulation Fibrous glass Under membrane in a Modified Protected Membrane Assembly. A fibreboard overlay (1 or 2 layers) is required over heat sensitive insulations.
Expanded polystyrene
Extruded polystyrene
Polyisocyanurate
Fibreboard Asphalt composite recover board overlays must be used for torch welded membranes.
Insulation Overlay 11 mm (7/16") asphalt-impregnated fibreboard Where required. Install according to RGC Guarantee Standards.
12 mm (½") exterior grade plywood, primed
Asphalt Type 3 Mop-on permitted on slopes up to 1:4 (3" in 12"), Torch welding is preferred.
TWO-PLY MEMBRANE
Base Sheet Sanded base sheet Hot asphalt or torch welded.
“Flam” base sheet Torch welded.
“PS” base sheet Hot asphalt-applied.
“Flam Stick” base sheets Self adhered to plywood and gypsum surfaces
Soprafix Base Sheets Mechanically Fastened
For a loose-laid ballasted system lap sides 150 mm, (6") and ends200 mm (8"), and seal with a torch.
Top Sheet Granular cap sheet Hot asphalt or torch welded.
“Flam” granular cap sheet Torch welded.
Base sheet (except “Flam Stick”) Top ply can be a base sheet for protected membrane systems.
Soprafix Cap Sheets Torch Welded
Flashing Membranes Base Ply Flashing material to be the same reinforcement weight or greater as base sheet membrane. Torch applied flashings are to be 180 g/m² NWP or composite reinforced. Use Stick for torch sensitive substrates.*
Cap Ply Torch welded, or cold adhesive applied granular membrane with 180 g/m² NWP or composite reinforcement.
Insulation Extruded polystyrene Loose-laid over roof membrane. (Type 4)
Concrete-topped extruded Loose-laid, no filter fabric and ballast required. polystyrene (Type 4)
Filter Fabric Soprafilter screen or Loose-laid over insulation, prior to ballast installation.
pre-approved alternative
Ballast Pavers on pedestals Deck must be capable of withstanding loads.
Gravel Gravel minimum 16 mm (5/8") to maximum 35 mm (1-3/8") diameter. Install according to insulation manufacturer's recommended application rate for the specified insulation thickness.
Mastics / Adhesives Sopramastic Compatible with SBS Modified membranes
Sopramastic Alu
Colply Adhesive
Brush / Trowel Grade
Coltack/Duotack
Alsan Flashing
* Elastocol Stick / Stick H²O primer and torch applied Cap Sheet is required.

1.1.4 COLVENT SYSTEM

Manufacturer: SOPREMA INC.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES – COLVENT SYSTEM

Roof Assembly: EXPOSED MEMBRANE, UNINSULATED, INSULATED, PROTECTED AND MODIFIED PROTECTED MEMBRANE ROOF ASSEMBLIES.

Slope Limitation: NO LIMIT
In-Service Performance: Min.: -18°C (+ 0°F) } Required membrane tensile strength varies.
Temperature of the Min.: <-18°C ( 0°F)
Membrane: Max.: +93°C (+200°F)

NOTE: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

APPLICATION REQUIREMENTS

Application temperature must be a minimum of +5°C. When temperatures are below +10°C, rolls must be pre-heated in a non hazardous zone.

All side laps are required to be sealed with torch and hot trowel, or granule embedment tool at the end of each days work. Colvent end laps are required to be 25 mm (1"), and are not required to be staggered. A 300 mm (12") strip of membrane will be welded over end lap terminations. Mechanically fasten all perimeters with screw and steel plate 300 mm (12") o.c. Base flashing will exceed steel plates a minimum of 100 mm (4").

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Plywood / Wood Plywood must be new or as new condition.
Steel Existing plywood requires Elastocol stick primer. New plywood does not require primer.
Plywood overlay must be mechanically secured for steel deck installation.
ROOF ASSEMBLY INSULATED
Roof Deck Plywood / Wood Prime surfaces to be directly adhered with bituminous materials. Steel decks may require a thermal barrier between the deck and the insulation. Mechanically fastened membranes require pull out strength of 34 kg (75 lbs) / sq. fastener.
Concrete
Steel
Thermal Barrier Gypsum Minimum 12.7 mm (1/2") may be required between steel deck and combustible insulations (See Building Code).
Vapour Retarder Baral Choice and use determined by local conditions.
Elastophene Sanded
Sopraglass 100
Sopravap’r
Sopraseal Stick 1100
Insulation Soprasio A
Insulation Overlay per RGC Standards.
TWO-PLY MEMBRANE
Base Sheet Colvent Self adhered to plywood.
Cap Sheet Colvent Traffic Cap 860 Torch welded
SopraStar HD GR Cap Sheet Torch Welded/Cold Adhesive
Flashing Membranes Base Ply Sopraflash, Torch welded.
Sopralene Flam Stick, self adhesive
Sopraflash Flam Stick, self-adhesive
Sopraflash Stick, self-adhesive
Use Stick products for torch sensitive substrates*.
Cap Ply Colvent Traffic Cap 860, Torch-welded
* Elastocol Stick / Stick H²O primer and torch applied cap sheet is required.
PROTECTED MODIFIED PROTECTED MEMBRANE ASSEMBLY
Insulation Extruded polystyrene (Type 4) Loose-laid over roof membrane
Concrete-topped extruded polystyrene (Type 4) Loose-laid, no filter fabric and ballast required.
Filter Fabric Soprafilter screen or pre-approved alternative Loose-laid over insulation, prior to ballast installation.
Ballast Pavers on pedestals Deck must be capable of withstanding loads.
Gravel Gravel minimum 16 mm (5/8") to a maximum 35 mm (1-3/8") diameter. Install according to insulation manufacturer’s recommended application rate for the specified insulation thickness.
Mastic / Adhesives Sopramastic Compatible with SBS modified membranes.
Sopramastic Alu
Colply Adhesive Brush / Trowel
Grade
Coltack/Duotack
Alsan Flashing
Walkways Sopralene Flam 250 / 350 GR Torch welded
Sopramat Apply over loose isolation membrane cap sheet or bonded with recommended adhesive over fully welded isolation membrane cap sheet.

1.1.5 COLPHENE SELF-ADHESIVE SYSTEM

Manufacturer: SOPREMA INC.

Contact Address: See Membership List in Section 1.

Product Group: SBS MODIFIED BITUMINOUS MEMBRANES – COLPHENE SELF-ADHESIVE SYSTEM


Roof Assembly: EXPOSED MEMBRANE, UNINSULATED, INSULATED, PROTECTED AND MODIFIED PROTECTED MEMBRANE ROOF ASSEMBLIES.

Slope Limitation: NO LIMIT
In-Service Performance: Min.: -18°C (+ 0°F) } Required membrane tensile strength varies.
Temperature of the Min.: <-18°C ( 0°F)
Membrane: Max.: +93°C (+200°F)

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

APPLICATION REQUIREMENTS

Application temperature must be a minimum of +5°C and rising. When temperatures are below +10°C, rolls, mastic, and primer must be pre-heated in a non hazardous zone.

A Warranty Request / Pre-Qualification Approval form must be submitted to and approved by Soprema prior to commencement of the project.

Complete membrane system, both base and cap sheet and stripping, must be installed the same day. Contractor must be Soprema qualified and pre-installation training in this system is mandatory for installation crew prior to project start-up.

ROOF ASSEMBLY UNINSULATED
Components Options Comments or Cautions
Roof Deck Plywood / Wood Plywood must be minimum ½", fully supported, and in new or as new condition. Dimensional wood requires an overlay of plywood or asphalt board.
Steel Plywood must be mechanically secured for steel deck installation.
ROOF ASSEMBLY INSULATED
Roof Deck Plywood / Wood Prime surfaces to be directly adhered with bituminous materials. Steel decks may require a thermal barrier between the deck and combustible insulations.
Concrete
Steel
Thermal Barrier Gypsum Minimum 12.7 mm (1/2") may be required between steel deck and combustible insulations (See Building Code).
Vapour Retarder Baral Choice and use determined by local conditions.
Elastophene Sanded
Sopraglass 100
Sopravap’r
Sopraseal Stick 1100
Lastobond Shield
Lastobond Shield HT
Insulation Sopraiso A No overlay required.
Expanded Polystyrene Overlay (Asphalt Board or Plywood) mandatory
Extruded Polystyrene Overlay (Asphalt Board or Plywood) mandatory
Polyisocyanurate Overlay (Asphalt Board or Plywood) mandatory
Insulation Overlay Asphalt Overlay Board Exposed surface to receive membrane must be sanded or smooth asphalt and must be primed.
PROTECTED & MODIFIED PROTECTED MEMBRANE ASSEMBLY
Insulation Extruded polystyrene (Type 4) Loose-laid over roof membrane
 
Concrete-topped extruded polystyrene (Type 4) Loose-laid, no filter fabric and ballast required.
 
Filter Fabric Soprafilter screen or Loose-laid over insulation, prior to ballast installation.
pre-approved alternative
Ballast Pavers on pedestals Deck must be capable of withstanding loads.
Gravel Gravel minimum 16 mm (5/8") to a maximum 35 mm (1-3/8") diameter. Install according to insulation manufacturer’s recommended application rate for the specified insulation thickness.
TWO-PLY MEMBRANE
Base Sheet Colphene 1500 Self-adhered to approved substrates. All surfaces to receive base membrane must be primed.
Cap Sheet Colphene HR Granular Composite reinforced self-adhesive cap sheet for heavy duty, high traffic areas.
Embed all end laps of granular cap in Colply Trowel Grade Adhesive. Allow for 1" heat welded outside edge of overlap.
Membrane requires rolling immediately after application with specific attention paid to laps.
Flashing Membranes Base Ply Colphene 1500
Cap Ply Colphene HR Granular
Primers Elastocol Stick Required for all substrates to receive base sheet and for use on side laps of granular cap sheets.
Mastic / Adhesives Sopramastic Compatible with SBS modified membranes.
Sopramastic Alu
Colply Adhesive Brush / Trowel Grade
 
Coltack/Duotack
Alsan Flashing
Walkways Colphene HR Granular Heavy duty self-adhesive cap sheet embedded in a coat of Colply Trowel Grade adhesive.
Sopramat Apply over loose isolation membrane cap sheet or bonded with recommended adhesive over fully welded isolation membrane cap.
Manufacturer:

1 TREMCO CANADA

Contact Address: See Membership List in Section 1

Product Group: COLD PROCESS MODIFIED BITUMEN ROOFING BURM 360 (Gravel Surfacing)

Country of Origin: Canada

Year First Installed
Canada: 1992

DESCRIPTION

BURM 360 is a modified bitumen roof system consisting of two smooth surfaces, polyester reinforced SBS modified bitumen plies adhered and floodcoated with Burmastic adhesive. The system is then finished with a gravel surface.

PART 1 - GENERAL
The roofing assembly / material information published in the RCABC Roofing Practices Manual does NOT represent a complete set of the manufacturer's published data, nor does it represent a detailed specification. The preparation of a detailed specification is the responsibility of the design authority.
1.1 SYSTEM DESCRIPTIONS
.1 Install two plies of generic (180 gm) polyester reinforced modified bitumen plies embedding each ply in uniform applications of Burmastic adhesive:
  • Surface with flood coat and gravel (RGC Guarantee Standards).
.2 Range of Application: BURM 360 can be used wherever conventional built-up roofing is presently used.
1.2 DELIVERY, STORAGE AND HANDLING
.1 Deliver and store materials in original packages and containers with manufacturers' seals and label intact.
.2 Keep roofing materials dry; protect from adverse weather conditions.
.3 Store rolls on end.
1.3 SITE CONDITIONS
.1 Slope limitations as RGC Guarantee Standards:
  • Minimum recommended slope: 1:5 (1/4" in 12")
  • Backnail each felt on slopes over: 1:6 (2" in 12")
1.4 STANDARDS AND APPROVALS
.1 UL: Meets Class A requirements.
.2 FM: meets FM 1-90 wind uplift requirements.
1.5 MANUFACTURER'S SERVICES
.1 Applicator Training
.2 Technical Service: representatives are available for design consultation and assistance.
.3 Specification / Drawings: provided on all applications
PART 2 - PRODUCTS
2.1 ROOF MEMBRANE
.1 Generic smooth finished (180 gm / sqm) polyester reinforced modified bitumen (POWERply 2PM), conforming to standard 37-GP-56M or Tremco approved equivalent..
.2 Cold process, modified asphalt based adhesive (Burmastic).
2.2 ANCILLARY PRODUCTS
.1 Cutback primer:
Tremprime Quick Dry
.2 Mastics:
Ecomastic
Brush Grade Mastic
S.F Polyroof
Sheeting Bond
.3 Reinforcing membrane: Burmesh woven glass
.4 Flashing membrane: Tremco Elastomeric Sheeting or 2 plies MB
.5 Reflective Coating: One-Coat Aluminum
.6 Gravel: according to RGC Guarantee Standards
PART 3 - EXECUTION
3.1 PREPARATION
.1 The deck must be properly designed and constructed to support and secure the BURM 360 roof system.
.2 The surface to which the roofing system is to be installed must be smooth, clean and dry.
.3 Ensure wood blocking, curbs and cant strips are solidly secured and reglets and nailing strips are in place as required.
.4 Prepare substrate in accordance with good roofing practices as outlined by RGC for the different deck types.
3.2 VAPOUR RETARDER
.1 Vapour retarders must be continuously extended throughout the roof plane. All openings in the roof deck must be flashed at the retarder level.
.2 Options dependent upon specific job requirement:
  • Install Tremco vapour retarder with 50 mm (2") side laps and 100 mm (4") end laps, adhering with Tremco Insulation Adhesive or Fas’N’Free Adhesive.
3.3 INSULATION
.1 Mechanically fasten insulation over nailable decks in accordance with RGC Guarantee Standards.
.2 Embed insulation in a ribbon application of Tremco Insulation adhesive at the rate of 0.019 litres per square metre (0.66 gallons / 100 sq ft) or Fas’N’Free Adhesive at the rate of 0.043 litres per square metre (1.5 gallons / 100 sq ft) over non-nailable decks.
.3 Install 11 mm (7/16") asphalt coated fibreboard as insulation overlay, as required by RGC Guarantee Standards.
.4 Install wood nailing strips on slopes exceeding 2:12 (2" in 12").
3.4 MEMBRANE APPLICATION
Install two plies of smooth (180 gram / sqm) polyester reinforced modified bitumen, laid in shingle fashion and placed to ensure that water will flow over or parallel to, but never against, exposed edges.
.1 Prior to placement cut modified bitumen in 5 to 6 metre (16’ to 20’) lengths. Allow lengths to relax at least 30 minutes at 13°C (55°F) or above. Allow approximately 60 minutes to relax at temperatures below 13°C (55°F).
.2 Starting at the low point of the roof, install two plies of smooth modified bitumen. Lap ends 150 mm (6").
.3 Stagger all laps 300 mm (12").
.4 Dry roll each ply to ensure proper alignment, prior to adhering with Burmastic
.5 Immediately embed each ply in uniform applications of Burmastic, spray or brush applied at 0.8 litres per sqm (2 gallons / 100 sq.ft) per ply.
.6 Fit plies into roof drain rims, reinforce with elastomeric sheeting adhered with Sheeting Bond.
.7 Extend plies only to top edges of cant strips along bases of parapets, walls and skylights.
3.5 FLASHINGS
.1 Ensure continuity of air / vapour seal at all changes in direction.
.2 Install one ply of Tremco Elastomeric Sheeting in Sheeting Bond Adhesive or alternatively, install 2 plies of modified bitumen adhered in Brush Grade Mastic Adhesive, S.F. Polyroof, Ecomastic or Sheeting Bond.
.3 Ensure that flashing extends onto roof membrane a minimum of 150 mm (6") and terminates a minimum of 200 mm (8") above roof membrane.
.4 Mechanically fasten flashing membrane 200 - 300 mm (8" - 12") on centre along outside fascia and along upper edge of wall flashing.
.5 Install metal counterflashing or apply One-Coat Aluminium as a protective reflective coating at the rate of 0.8 litres / sqm (2 gallons / 100 sq ft).
3.6 PROTECTIVE FINISH
.1 Gravel Surface:
Apply Burmastic at 2.4 litres / sqm (6 gallons / 100 sq ft) and immediately broadcast 20 kg / sqm (400 lb / 100 sq.ft) of new, clean pea gravel.

Manufacturer: TREMCO CANADA

Contact Address: See Membership List in Section 1

Product Group: MODIFIED BITUMEN ROOFING SYSTEM

(Cold Process-Gravel Surfacing)
Roof Assembly:

1.1 EXPOSED MEMBRANE, UNINSULATED

Note: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Wood / Plywood Prime surfaces to be adhered with cold applied adhesive. Tape plywood joints. Wood decks require a nailed separation sheet. Steel decks require a levelling underlay.
Concrete
Steel
Thermal Barrier Gypsum Minimum 12.7 mm (1/2") may be required between steel deck and a roof system using combustible insulations (See National Building Code).
Vapour Barrier Tremco Vapour Retarder Adhere with Tremco Insulation adhesive or Fas’N’Free Adhesive. (The requirement for a vapour retarder is determined by the design authority.
Composite Ply
Insulation Glass Fibre Asphalt coated fibreboard is required over all insulations.
Polyisocyanurate Base course of polystyrene and one layer of fibreboard must be mechanically fastened. A second (asphalt coated) overlay can be adhered with Tremco Insulation Adhesive or Tremco Fas’N’Free Adhesive.
Polystyrene
Wood fibreboard
MEMBRANE
Roof Membrane Two plies of POWERply 2PM Install two plies of POWERply 2PM, shingle fashion, into Burmastic Adhesive applied at a rate of 0.8 litres / sqm (2 gal / square) per ply.
Burmstic Adhesive
Flashings Two plies of POWERply 2PM Install two plies of POWERply 2PM into Brush Grade Mastic, Ecomastic, S.F. Polyroof or Sheeting Bond. Mechanically fasten flashing on walls and over fascia. Install metal counterflashing or apply One Coat Aluminum Protective Coating.
Brush Grade Mastic
Membrane Surfacing Burmastic Adhesive Floodcoat surface with Burmastic applied at the rate of 2.4 litres / sqm (6 gal / square) and immediately broadcast gravel according to RGC Guarantee Standards.
Gravel

Manufacturer: TREMCO CANADA

Contact Address: See Membership List in Section 1

Product Group: MODIFIED BITUMEN ROOFING

POWERply 3PM / 2PM System (Cold Process)

Country of Origin: Canada

Year First Installed
Canada: 1992

DESCRIPTION

POWERply 3PM / 2PM System is a 2 ply, (SBS) modified bitumen membrane consisting of a granulated, polyester reinforced cap ply and a smooth surfaced, polyester reinforced base ply. The POWERply 3PM / 2PM system is designed for new or reroofing applications in a cold applied adhesive such as POWERply Rubberized Cold Adhesive or SF Burmastic Adhesive.

PART 1 - GENERAL
The roofing assembly / material information published in the RCABC Roofing Practices Manual does NOT represent a complete set of the manufacturer's published data, nor does it represent a detailed specification. The preparation of a detailed specification is the responsibility of the design authority.
1.1 SYSTEM DESCRIPTIONS
.1 Install a base ply of POWERply 2PM and a granulated cap ply of POWERply 3PM by embedding each ply into uniform applications of POWERply Rubberized Cold Adhesive.
.2 Range of Application: POWERply 3PM / 2PM can be used wherever conventional built-up roofing is presently used.
1.2 DELIVERY, STORAGE AND HANDLING
.1 Deliver and store materials in original packages and containers with manufacturers' seals and label intact.
.2 Keep roofing materials dry; protect from adverse weather conditions.
.3 Store rolls on end.
1.3 SITE CONDITIONS
.1 Slope limitations as RGC Guarantee Standards:
  • Minimum recommended slope: 1:50 (1/4" in 12")
  • Backnail each felt on slopes over: 1:6 (2" in 12")
1.4 STANDARDS AND APPROVALS
.1 Fire: Meets Class C requirements.
.2 FM: Meets FM 1-90 wind uplift requirements.
1.5 MANUFACTURER'S SERVICES
.1 Applicator Training
.2 Technical Service: representatives are available for design consultation and assistance.
.3 Specification / Drawings: provided on all applications
PART 2 - PRODUCTS
2.1 ROOF MEMBRANE
.1 Smooth finished 2.2 mm thick (180 gm / sqm) polyester reinforced modified bitumen (POWERply 2PM), conforming to standard 37-GP-56M.
.2 Granulated 3.5 mm (180 gm / sqm) polyester reinforced modified bitumen cap ply (POWERply 3PM), conforming to standard 37-GP-56M.
.3 Cold process, rubberized asphalt based adhesive (POWERply Rubberized Cold Adhesive) or solvent free cold process, elastomeric asphalt based adhesive (SF Burmastic).
2.2 ANCILLARY PRODUCTS
.1 Cutback primer:
Tremprime Quick Dry
.2 Mastics:
Brush Grade Mastic
Ecomastic
Sheeting Bond
.3 Flashing membrane - POWERply 2PM Base Sheet and POWERply 3PM Cap ply
.4 Vapour Retarder- Tremco Vapour Retarder
.5 Vapour Retarder / Insulation Adhesive: Tremco Insulation Adhesive or Fas’N’Free Adhesive
PART 3 - EXECUTION
3.1 PREPARATION
.1 The deck must be properly designed and constructed to support and secure the POWERply 3PM / 2PM roof system.
.2 The surface to which the roofing system is to be installed must be smooth, clean and dry.
.3 Ensure wood blocking, curbs and cant strips are solidly secured and reglets and nailing strips are in place as required.
.4 Prepare substrate in accordance with good roofing practices as outlined by RGC for the different deck types.
3.2 VAPOUR RETARDER
.1 Vapour retarders must be continuously extended throughout the roof plane. All openings in the roof deck must be flashed at the retarder level.
.2 Options dependent upon specific job requirement:
Install Tremco vapour retarder with 50 mm (2") side laps and 100 mm (4") end laps, adhering with Tremco Insulation Adhesive or Fas’N’Free Adhesive.
3.3 INSULATION
.1 Mechanically fasten insulation over nailable decks in accordance with RGC Guarantee Standards.
.2 Embed insulation in a ribbon application of Tremco Insulation Adhesive at the rate of 0.019 litres per square metre (0.66 gallons / 100 sq ft) or Fas’N’Free Adhesive at the rate of 0.043 litres per square metre (1.5 gallons / 100 sq ft) over non-nailable decks.
.3 Install 11 mm (7/16") asphalt coated fibreboard as insulation overlay, as required by RGC Guarantee Standards.
.4 Install wood nailing strips on slopes exceeding 2:12 (2" in 12").
3.4 MEMBRANE / FLASHING APPLICATION
Install modified bitumen, starting at the low point of the roof and ensure that water will flow over or parallel to, but never against, exposed edges.
.1 Prior to placement cut modified bitumen in 5 to 5.5 metre (16’ to 18’) lengths. Allow lengths to relax at least 30 minutes at 13°C (55°F) or above. Allow approximately 60 minutes to relax at temperatures below 13°C (55°F).
.2 Install base ply of modified bitumen, lapping sides 75 mm (3") and lapping ends 150 mm (6"). Stagger end laps 300 mm (12").
.3 Dry roll each ply to ensure proper alignment, prior to adhering with adhesive.
.4 Immediately embed each ply in uniform applications of adhesive, spray or brush applied at 0.8 litres per square metre (2 gallons / 100 sq ft).
.5 Fit ply into roof drain rims.
.6 Extend ply only to top edges of cant strips along bases of parapets, walls and skylights.
.7 Ensure continuity of air / vapour seal at all changes in direction.
.8 Install base ply flashing with Brush Grade Mastic, Ecomastic or Sheeting Bond extending onto roof membrane a minimum of 150 mm (6") and terminating a minimum of 200 mm (8") above roof membrane.
.9 Install cap ply membrane, lapping sides 75 mm (3") and lapping ends 150 mm (6"). Stagger end laps 300 mm (12") and offset cap ply end laps with base ply laps a minimum of 300 mm (12").
.10 Dry roll each ply to ensure proper alignment, prior to adhering with adhesive.
.11 Immediately embed each ply in uniform applications of adhesive, spray or brush applied at 0.8 litre per square metre (2 gallons / 100 sq ft).
.12 Install cap ply flashing with Brush Grade Mastic, Ecomastic or Sheeting Bond extending onto roof membrane a minimum 200 mm (8") and terminating a minimum of 200 mm (8") above roof membrane.
.13 Immediately mechanically fasten 2 ply flashing membrane 200-300 mm (8-12") on centre, along outside fascia and along upper edge of wall flashing.

Manufacturer:TREMCO CANADA

Contact Address: See Membership List in Section 1

Product Group: MODIFIED BITUMEN ROOFING SYSTEM

(Cold Process)
Roof Assembly:

1.2 EXPOSED MEMBRANE, INSULATED

NOTE: Only components or products listed here and in the RGC Accepted Materials List may be used. No substitutes are allowed for guarantee purposes.

ROOF ASSEMBLY
Components Options Comments or Cautions
Roof Deck Wood / Plywood Prime surfaces to be adhered with cold applied adhesive. Tape plywood joints. Wood decks require a levelling underlay.
Concrete
Steel
Thermal Barrier Gypsum Minimum 12.7 mm (1/2") may be required between steel deck and a roof system using combustible insulations (See National Building Code).
Vapour Barrier Tremco Vapour Retarder Adhere with Tremco Insulation Adhesive or Fas’N’Free Adhesive. The requirement for a vapour retarder is determined by the design authority.
Composite Ply
Insulation Glass Fibre Asphalt coated fibreboard is required over all insulations. Base course of polystyrene and one layer of fibreboard must be mechanically fastened. A second (asphalt coated) overlay can be adhered with Tremco Insulation Adhesive or Tremco Fas’N’Free Adhesive.
Polyisocyanurate
Polystyrene
Wood fibreboard
MEMBRANE
Roof Membrane POWERply 2PM Base Install both POWERply 2PM and POWERply 3PM plies at the rate of 0.8 litres / square metre (2 gallons / sq) per ply.
POWERply 3PM
POWERply Rubberized Cold Adhesive or SF Burmastic
Flashings POWERply 2PM Base Install both POWERply 2PM and POWERply 3PM plies into Tremco Brush Grade Mastic, Ecomastic or Sheeting Bond.
POWERply 3PM Cap
Mechanically fasten flashing on walls and over fascia. Install metal counterflashing as specified.

5.6 4.6 Fasteners

Refer to Membrane / Insulation Manufacturer Specifications and RGC Guarantee Standard A4.3 Insulation Fastener

6 5. SBS Application and Safety: Best Practices

Modified bitumen roofing membranes represent the latest in the evolution of bituminous roofing systems. However, some systems require that applicators use a propane-fuelled open flame torch to adhere the membrane. When working with an open flame on the construction site, applicators must use extreme caution to prevent accidents. Carelessness could lead to loss of property or life.

This section contains precautions for applying modified bitumen roofing. The applicator will find proper procedures for working with equipment on the jobsite, and dealing with personnel.NOTE: If a fire occurs for any reason, call the fire department immediately, even if you put out the flames. Some material may smoulder for hours before bursting into flames, and could be smouldering in places where the layman may not think to look. Let the fire fighters do their job. Safety is no accident.

6.1 5.1 EQUIPMENT

Applicators use an open flame to soften the bitumen on the underside of the membrane to make it adhere to the roofing substrate. At a temperature of 1100oC (2000oF), the flame produced by liquid propane gas does an excellent melting job. But used incorrectly or carelessly, the flame could damage the roof or the building and seriously injure the applicator.

Applicators should receive training in proper application, maintenance and safety procedures when handling torching equipment.

Operators should handle their equipment carefully. Protect the soft brass valve of the gas cylinder. It is easy to crack or break it. A broken valve could turn the cylinder into a projectile. Check all cylinders before refilling. Never overfill a cylinder. It could explode.

All applicators of modified bitumen should participate in the safety and training program.

6.1.1 5.1.1 General

  • Use well-built durable products that feature safety devices and are listed by Underwriters Laboratories of Canada (ULC).
  • Follow the manufacturer's safety and operating instructions provided with the torch system.
  • Check all equipment for wear. Remove and replace as necessary.
  • Use soap solution to test for gas leaks before lighting, then check for proper operation of the torch.
  • Check all fittings and other equipment on the applications equipment for leakage.
  • Be sure that torching equipment is in good working order and that the cylinder valves are clean.
  • Stop work and shut off flame if propane odour is detected.
  • Stop work, investigate and make corrections if a leak occurs.* Keep non-applicators at least 3 m (10') from the flame.
  • Protect your equipment: store it in a toolbox.
  • Do not use matches or a cigarette lighter to test for gas leaks.
  • Containers which hold or may have held flammable material must be kept clear of the torch or other heat sources.
  • Do not use equipment that has been damaged or that is in need of repair.

6.1.2 5.1.2 Tanks

  • Protect cylinder valves; where possible use cylinders that have valve protection welded to the cylinder.
  • Propane tanks are pressurized – do not puncture or subject to extreme heat.
  • Secure propane tanks in an upright position and place them at least 3 m (10') from the open flame.
  • Increase the size of the tank to keep frosting from occurring.
  • Close the propane tank valve first and let the remaining gas burn out of the hose before closing the torch valve when shutting off the torch.
  • Plug the valve with a plastic plug when cylinder is not in use.
  • Do not turn a vapour draw tank on its side to increase pressure - liquid could escape.
  • Do not heat a tank to increase pressure.
  • Do not fill a propane tank that is in need of repair.
  • Do not over tighten the brass fittings.

6.1.3 5.1.3 Regulators

  • Use an adjustable ULC listed regulator with the torch.
  • Make sure flow of gas through the regulator is in the proper direction. Directional flow is stamped on regulator.
  • Keep vent in pressure regulator clear at all times.
  • Do not use an adjustable regulator with a higher pressure range than the one that came with the torch.
  • Do not operate any pressure gauge beyond the top of its scale or near excessive heat (above 65°C) or where there is excessive vibration.* Do not use equipment without a properly operating regulator.

6.1.4 5.1.4 Hoses

  • Check hoses for wear and tear.
  • Use only hoses listed for propane gas by the Canadian Gas Association as applicable for the device.
  • Use no more than 15 m (50') of hose at one time.

6.1.5 5.1.5 Torches

  • Use an adjustable pilot light with a complete shut-off.
  • Only use a torch stand to direct flame upward when not in use. Do not use a trowel as a torch stand.
  • Use only torch machines equipped with the same safety features as described for torches. They should also have individually adjustable torches. Use only torch trolleys and multiple head machines with approved safety valves.
  • Ignite burner with a flint or electronic lighter. Matches or disposable lighters are unsafe substitutes.
  • Do not play with a torch. Treat the torch as if it is always burning. A flame can be hard to see on a bright day and can burn skin or clothing instantly. When working around mechanical equipment, it can be difficult to hear the torch operating.
  • Be very careful when working with torches in areas where you can not see. Pull material away, heat it, and then apply it to the surface.
  • Do not leave lighted torch unattended.
  • Do not lay operating torch over the edge of a roof.
  • Do not lay an operating torch to rest on a propane tank. If there is a gas leak, a fire could be ignited.

6.1.6 5.1.6 Extinguishers

  • Have at least one Class ABC fire extinguisher within 6 m (20' ) of each worker using a torch.
  • Train each torch operator in the proper use of fire extinguishers.
  • Direct the stream from a dry chemical-type fire extinguisher at the base of the fire from a distance of at least 3 m (10'). Sweep the fire away from you, starting at its nearest point and moving the chemical stream toward the farthest point.
  • Do not try to put out a propane tank fire if it cannot be done without shutting off the cylinder valve OR tipping the cylinder. Let it burn and call the fire department.
  • Do not place fire extinguisher too close to liquid propane gas equipment. If fire results, you may not be able to get at fire extinguisher to put out the fire.
WHEN IN DOUBT – CHECK IT OUT.
IF STILL IN DOUBT – DON'T USE IT.

6.2 5.2 BUILDINGS

Each building is different from every other building, and each roof design presents a new set of challenges to the roofing contractor. The applicator of modified bitumen systems must adapt his standard safety procedures to meet the special requirements of the current job. However, roofers should follow the basic rules presented in these pages.

The supervisor must conduct a fire risk assessment before any Torch Applied hot-work is started and complete their company's Hot-Works assessment form work.

The job supervisor should take extra care when working on a torch applied modified bitumen roofing project. A responsible person should conduct a fire watch over the work area a minimum of one hour after all torches have been extinguished and record the findings of the fire watch on their company's fire watch form. The delay will help guard against a smouldering fire going undetected at the end of the work day. Check for potential "hot spots" with an infra-red scanner, especially at upstands, eg wall transitions, around penetrations such as vent pipes, intake vents and skylights etc. If accessible (new construction projects) check and scan the underside of the deck before ending your fire watch, or walk back through the building interior before concluding the fire watch.

Applicators must take special care when torching at flashings, corners, or voids in the roof deck. Never torch directly at these locations. Always use self adhered or cold applied materials at these fire sensitive locations.

6.2.1 5.2.1 General

  • Use protective shielding when using torch application near any upstands.
  • Shut down air conditioning units, exhaust fans and air intake fans in the work area at the roof control. This must be coordinated with the owner or building maintenance staff.
  • Do not work in an enclosed area where gas can accumulate.

6.2.2 5.2.2 Substrates

  • Use perlite, fibreglass, or concrete cant strips if cant strips are required.
  • Use a protective base sheet on all wood decks and over ignitable insulation, can strips or other flammable surfaces.
  • Look for any void, hole or gap in the substrate and repair.
  • Use a base ply over all ignitable insulation surfaces, edges and over all joints between rigid insulation boards. The base ply provides a protective covering for underlying ignitable materials.
  • Install a cover board or base ply, acceptable to the membrane manufacturer, to separate polyurethane or polyisocyanurate roof insulations from the modified sheet and the torch.
  • Install a cover board or base ply over all ignitable surfaces. Be sure base ply fits tightly around all roof deck openings and turns up the wall, so the flame cannot flash down and start a fire underneath the deck.
  • Do not torch to wood fibre insulation, cant strip, wood or any ignitable material.

6.2.3 5.2.3 Torching Methods

  • Follow manufacturer's recommendations on torching to insulation and recover board surface.
  • Use a small torch when flashing near details.
  • Shield air conditioning units and other protrusions with when using the torch around them.
  • Heat the membrane away from air conditioning units, fans, soil pipes and all other protrusions. Care must be taken to avoid flame being pulled into the building interior.
  • Feather seams around details with a hot trowel, not open flame.
  • Use self adhered or cold adhesive membrane flashings at corners, or voids in the roof deck. Never torch directly.
  • Use caution when torching near pipes in the event there is suction present.
  • Do not torch anything you cannot see such as under air conditioning units or behind counter flashing.
  • Do not torch near gas lines or near electric wires (such as around roof top equipment, etc.).
  • Do not torch around flammable vents or plastic projections.
  • Do not point the torch under rooftop equipment.
  • Do not point the torch down open roof penetrations.
  • Do not point the torch into corners or roof edges where dried wood or fibre may ignite (such as wood blocking or cant strip).
  • Do not point the torch at low flashings where there is an overhang and flame could get up under the counter flashing, such as around skylights or prefabricated curbs with fibreboard sidewall insulation.
  • Do not apply modified bitumen products directly over exposed conduits or pipes lying on the roof deck.
  • Avoid prolonged contact with heat sensitive metals such as lead, as overheating of these metals could ignite underlying flammable services.
  • Do not lay an operating torch directly onto the membranes – there is a danger both of fire and of damaging the membrane.
  • Do not lay an operating torch on an open penetration on the roof. If the penetration is part of an air intake system, the flames could be sucked into the building.

6.3 5.3 PERSONNEL

Many construction-industry tradesman use open flames or flame tools in their jobs. Heating and air conditioning contractors, welders and plumbers all use open flame at the job site. These professionals are responsible for the safe use of their tools, just as the roofing contractor is responsible for the safe application of modified bitumen roofing systems.

Contractors must not only train their own men in using open flame application, but must also make sure the general contractor and his superintendents are familiar with the necessary safety precautions for using torch application of roofing membrane.

Some of the safety precautions will be considered unpleasant, such as wearing long-sleeve shirts and long pants in the summer, but the results – a safe, injury-free job site – are worth the effort.

6.3.1 5.3.1 General

  • Wear proper clothing: non-synthetic fabrics, long-sleeve shirt, long pants, boots, gloves and proper eye protection.
  • Keep non-applicators at least 3 m (10' ) from open flame.
  • Train, instruct, and warn employees on the use of torching equipment.
  • Use extra caution around edges of insulation board. Cover exposed edges with a fire guard base ply to prevent flame from coming in contact with any ignitable material. Contact for any length of time with lead or other materials affected by heat should be avoided.
  • Do not take anything for granted. Be on guard against lapses in on-the-job safety.

6.4 5.4 FIRE DEPARTMENT

For years fire departments have been learning the proper safety precautions necessary to prevent fires. Their expertise and assistance should be utilized whenever possible to supplement a company's safety training program. By making the local fire department a part of your team, you are giving notice that in all cases Safety Comes First.

6.4.1 5.4.1 Fire Department Recommendations

  • Strict compliance with local fire codes must be maintained.
  • Give written notice to the local fire department where required, and obtain any necessary permits.
  • One fire extinguisher for each torch operator shall be on the roof at all times.

Report ALL fires to the fire department – even those that are extinguished quickly – there may still be fire and / or smouldering in areas where a layman may not think to look.

7 6. SBS Master Specifications

NOTE: this needs to be a downloadable form, using the Build-Your-Own-Roof tool which can export materials into the form. Consequently, this form must be radically altered.

Intended as a guide for developing office master specifications or preparing project specifications.

Edit and amend to suit required purpose.

SECTION 07535

PROJECT NO. (OPTIONAL)

PROJECT NAME (OPTIONAL)

[MODIFIED] [OXIDIZED] BITUMEN SHEET ROOFING

PAGE [ ] OF [ ]

  1. PART 1 - GENERAL
    1. Work Included: (this clause is optional and, if using, ensure description of work is complete.)
    2. Related Work: (reference appropriate sections and ensure list is complete) eg:
      1. Section 06100 Rough Carpentry (Cants, Blocking, etc.)
      2. Section 07311 Asphalt Shingles
      3. Section 07600 Flashing and Sheet Metal
      4. Section 15440 Plumbing (Supply of Roof Drains)
    3. Quality Assurance:
      1. Workmanship Standards:
        1. Conform to the latest Guarantee Standards of the Roofing Contractors Association of British Columbia (RGC) as published in the “RCABC Roofing Practices Manual” for a five (5) or ten (10) year Guarantee, unless modified by the contract documents to exceed those minimums.
        2. The owner or the owner's representative should identify applicable code and insurance requirements relating to the roof assembly.
      2. Qualification of Workers: Employ skilled applicators approved by membrane manufacturer.
      3. Independent Inspection: (Preferred Wording)
        1. Perform using an independent inspection company acceptable to RGC, [the owner, and the consultant] namely: _______________ (name of Inspection Company).
        2. Perform as required by RGC under the five (5) or ten (10) year Guarantee Program.
        3. Inspection costs for the Guarantee will be paid for directly by owner, and are not included in this contract.
      4. Independent Inspection: (Optional Wording)
        1. Perform using an independent inspection company acceptable to RGC, [the owner, and the consultant] to be assigned by RGC.
        2. Perform as required by RGC under the five (5) or ten (10) year Guarantee Program.
        3. Inspection costs for this Guarantee are included in this contract.
    4. Submittals:
      1. Provide the owner with an “RGC Roofing System Record” upon completion of this contract. (Includes RoofStar Guarantee, copies of inspection reports, and Roof Maintenance Guide.)
      2. Provide the owner with one set of any required Material Safety Data Sheets (MSDS) prior to commencement of work, for review and posting on job site.
      3. List other submittal requests here, eg: shop drawings, samples, product literature, etc.
    5. Product Delivery, Storage, and Handling:
      1. Deliver and store materials in original containers with manufacturer's labels and seals intact.
      2. Store materials elevated from contact with ground and moisture and protected from weather.
      3. Store membrane rolls on end, one pallet high, selvage edge up; do not store in a leaning position.
      4. Where climatic conditions warrant, store membrane rolls in heated enclosures prior to use, as recommended by manufacturer; bring only enough rolls for immediate use to work area.
      5. Avoid prolonged exposure of light and heat sensitive materials to sunlight.
      6. Store combustible materials away from heat and open flame.
      7. Consult the manufacturer's material safety data sheets for materials on this project.
    6. Guarantee:
      1. Provide the standard Roofing Contractors Association of British Columbia (RGC) five (5) or ten (10) year Guarantee.
  2. PART 2 - PRODUCTS
    1. Roofing Materials:
      1. Standards: conform to the RGC Guarantee Standards and to the appropriate CSA, CGSB,ULC, and ASTM Standards for the materials used in the roofing system specified; materials to be listed in the RGC Accepted Materials List of the RCABC Roofing Practices Manual.
      2. Standards: (optional); conform to the requirement of ULC Design No.[ ]. (The design authority is responsible for identifying applicable code and / or insurance requirements governing material selection.)
      3. Use only components supplied or accepted by membrane manufacturer.
      4. Gypsum: (over steel deck as membrane underlay or thermal barrier); minimum [12.7 mm (1/2")] [15.9 mm (5/8")] thick; 1200 mm x 2400 mm (4' x 8' ) sheets; [standard] [type X] [siliconized with fibreglass facers]; conform to CSA A82.27-M1977.
      5. Gypsum Fasteners: No. 10 flat-head, countersunk, self-tapping screws, Type [A, AB], Philips, [cadmium-plated], [19 mm, 25 mm] [3/4", 1"] long, to CSA B35.3-1962.
      6. Vapour Retarder: (the selection of, and the requirement for, the vapour retarder is determined by the design authority.) or [as recommended by membrane manufacturer]
      7. Base / Separation Sheets: proprietary sheets approved by membrane manufacturer.
      8. Asphalt: oxidized roofing asphalt conforming to [CSA A123.4-M1979, Type 3 (steep)] [ASTM D312-78, Type IV (special steep)].
      9. Insulation Overlay:
        • 11 mm (7/16") asphalt-impregnated fibreboard conforming to CAN / CSA- A247-M86, Type 1; [asphalt-coated one side] [asphalt-coated both sides]
        • 13 mm (1/2") Perlitic Retro-fit Board to CAN / CGSB 51.10-92 or
        • RGC accepted asphaltic overlay board
      10. Filter Fabric: 100% woven polyolefin; proprietary alternatives approved by membrane / insulation manufacturer.
      11. Gravel: (where pour coat and gravel surfacing options are approved by membrane manufacturer); clean, washed, round or crushed stone; opaque to ultraviolet light; gradations according to RGC Guarantee Standards.
      12. Gravel Ballast: (for Protected Membrane and Modified Protected Membrane Roof Assemblies); clean, washed, round or crushed stone; gradations according to RGC Guarantee Standards.
      13. Membrane Fasteners: (proprietary type approved by membrane manufacturer).
      14. Termination Bars: (proprietary type approved by membrane manufacturer).
      15. Insulation Fasteners: [( ) mm] [( )"]; {screws and [plastic] [steel] stress plates} [RGC accepted nails (over wood decks only)].
      16. Membrane Accessories: (List membrane manufacturer's proprietary accessories here. For Example: adhesives; sealants / mastics; prefabricated flashings; walkway pads; coatings, etc.)
    2. Roof Insulation:
      1. Glass Fibre: conform to CAN / CGSB-51.31-M84; top surface finished with asphalt-coated kraft paper; ( ) mm [( )"] thick; [RSI ( )] [R ( )]; {tapered to provide 1: ( ) [( )" in 12"] slope, minimum thickness ( ) mm [ ( )"] at drains}.
      2. Extruded Expanded Polystyrene: conform to CAN / ULC-S701-97, Type [2,4]; [shiplapped] [butt] edges; ( ) mm [( )"] thick; [RSI ( )] [R ( )]; {tapered to provide 1: ( ) [( )" in 12"] slope, minimum thickness ( ) mm [( )"] at drains}.
      3. Expanded Polystyrene: conform to CAN / ULC-S701-97, Type [1,2,3,4,]; [shiplapped] [butt] edges; ( ) mm [( )"] thick; [RSI ( )] [R ( )]; {tapered to provide 1: ( ) [( )" in 12"] slope, minimum thickness ( ) mm [( )"] at drains}.
      4. Polyurethane: conform to {CGSB 51-GP-21M 1978 (unfaced polyurethane), Type [1,2,3], Class [1,2,3]} {CAN / CGSB-51.26-M86 (faced polyurethane), Type [1,2,3,4], Facing [1,2,3,4,], Surface Burning Characteristic [a,b] }; [with shiplapped edges] [channel vented]; ( ) mm [( )"] thick; [RSI ( )] [R ( )].
      5. Polyisocyanurate: conform to {CGSB 51-GP-21M 1978 (unfaced polyisocyanurate), Type 4, Class [1,2,3] } {CAN / CGSB-51.26-M86 (faced polyisocyanurate), Type [1,2,3,4], Facing [1,2,3,4], Surface Burning Characteristic [a,b] }; ( ) mm [( )"]; [RSI ( )] [R ( )].
      6. Fibreboard: conform to CAN / CSA-A247-M86, Type 1; [shiplapped] [square] edges; ( ) mm [( )"] thick; [RSI ( )] [R ( )].
      7. Perlitic: conform to CAN / CGSB 51.10-92 ( ) mm [( )] thick [RSI ( )] [R ( )].
    3. Roof Membrane:
      1. Base Sheet: minimum [ ] mm thick, {( )% [SBS][APP] modified} [oxidized] bituminous membrane; minimum [ ] kg / m² total weight with ( ) g / m² [non-woven] [woven] [polyester] [fibreglass] [and ( ) g / m² non-woven fibreglass] reinforcing; [sanded] [polypropylene] bottom surface and [sanded] [polypropylene] top surface; for [torched] [mopped] [adhesive] application; {conforming to CGSB 37-GP-56M 1985, Type [1,2] [a,b,c], Class C, Grade [1,2] }; [minimum tensile strength ( ) N/50 mm].
      2. Cap Sheet [Single Ply]: minimum [ ] mm thick, {( )% [SBS][APP] modified} [oxidized] bituminous membrane; minimum [ ] kg / m² total weight with [( ) g / m² [non-woven] [woven] [polyester] [fibreglass] [and ( ) g / m² fibreglass] reinforcing; [sanded] [polypropylene] bottom surface and [sanded] [polypropylene] [granular] [metal foil] top surface; for [torched] [mopped] [adhesive] application; {conforming to CGSB 37-GP-56M 1985, Type [1,2] [a,b,c], Class [A,B,C], Grade [1,2]}; [minimum tensile strength ( ) N/50 mm].
      3. Base & Cap Membrane Flashing: (Generally, the base and cap membrane flashing should, as a minimum, be the same weight and reinforcing as the roof membranes. Often manufacturers recommend higher mass sheets with more reinforcement, and in many cases torched application is required. Consult membrane manufacturer.)
  3. PART 3 - EXECUTION
    1. Preparation:
      1. Ensure membrane substrate is rigid, dry, smooth, compatible, free of fins and sharp edges, and clean of all debris and foreign matter.
      2. Ensure all openings, walls, and projections through the roof are firmly affixed and [cant strips,] reglets and nailing strips are in place. (Cant strips are not required by some membrane manufacturers).
      3. Install a [mechanically fastened] base ply to membrane manufacturer's specification [over wood board deck] [where required].
      4. Satisfy the membrane manufacturer's specifications for substrate preparation prior to membrane application.
      5. A thermal barrier may be required between the roof deck and some insulations. Building code and insurance requirements to be identified by design authority.
    2. Primer:
      1. Prime wood, concrete, and metal surfaces to be directly adhered with bituminous membranes; allow to dry.
      2. Consult membrane manufacturer for specific requirements.
    3. Vapour Retarder:
      The design authority determines the necessity for and the placement of the vapour retarder.
    4. Insulation: (under membrane)
      1. Install insulation in moderate contact (without forcing); stagger end joints; provide a smooth surface to accept roof membrane.
      2. Install insulation according to RGC Guarantee Standards over nailable decks.
      3. Embed insulation in 1.5 kg / m² (30 lb / square) mopping of hot asphalt over non-nailable deck.
      4. Install tapered insulation according to insulation manufacturer's shop drawings.
      5. Install only as much insulation as can be covered with roof membrane on the same day.
      6. Install wood nailing strips (insert where slopes exceed manufacturer's recommendation); ensure nailer is flush with insulation surface. (On uninsulated or PMR systems, wood nailers must be flush with deck and are the responsibility of others.)
      7. Install 11 mm (7/16") asphalt-impregnated fibreboard, 13 mm (1/2") Perlitic Retro-fit Board as an insulation overlay, or RGC accepted asphaltic overlay board, where required by RGC Guarantee Standards.
    5. Base Sheet: (two-ply membrane)
      1. Start at the low point and [at right angles] [parallel] to the slope. (Some specifications require the membrane be installed parallel to the slope for high slope applications, consult membrane manufacturer.)
      2. Unroll and align membrane; lap sides [( ) mm] [( )"] and ends [( ) mm ][( )"]; stagger end laps [( ) mm] [( )"].
      3. Carry base sheet to [top of cant] [base of wall / curb]. (Some manufacturers do not require cants and may specify that the base sheet not be bonded to the cant if present; consult membrane manufacturer.)
      4. Asphalt-adhered:
        1. Reroll approximately half the membrane into a firm roll.
        2. Embed membrane in [( ) kg / m²] [( ) lb / square] hot asphalt; minimum asphalt application temperature +205°C (+400°F) at the roll.
        3. Limit mopping distance to 1 m (3') ahead of unrolling membrane to ensure proper asphalt application temperature is maintained.
        4. Apply even pressure on membrane as it is unrolled; do not “kick the roll out”; a visible “wave” of asphalt must precede the roll.
        5. Reroll opposite end and repeat process.
        6. Mechanically fasten head laps. (Consult membrane manufacturer for specific recommendations on slopes over 1:24 (1/2" in 12") ).
      5. Torch-adhered: (modified membranes only)
        1. Reroll approximately half the membrane into a firm roll.
        2. Direct propane torch along underside of roll, melting the surface modified bitumen; preheat seam of previous roll concurrently.
        3. Unroll membrane as modified bitumen melts.
        4. Push first roll back after starting to check for full bonding of the membrane; adjust torching and speed accordingly; avoid stopping and starting which may cause voids or insufficient bonding.
        5. Bevel “T” joints at roll ends and repair “fishmouths” using a torch-heated trowel.
        6. Reroll opposite end and repeat process.
        7. Mechanically fasten head laps. (According to membrane manufacturer's recommendations.)
      6. Adhesive-applied: (This option is a special application and when offered as an alternative method the membrane manufacturer must approve the system and the application.)
        1. Install proprietary adhesive according to [insert membrane manufacturer] latest printed instruction.
        2. Special details may be required at perimeters and openings, consult membrane manufacturer.)
        3. Nail headlaps [( ) mm] [( )" o/c] [staggered].
        4. Lift overlaps and, using a proprietary torch, torch seal seams; take care not to ignite adhesive; ensure a full bond is achieved.
      7. Loose-laid and ballasted: (This option is a special application and where offered as an alternative method the membrane manufacturer must approve the system and the application.)
        1. Install membrane loosely over acceptable substrate; lap sides [( ) mm] [( )"] and ends [( ) mm] [( )"].
        2. Lift overlaps and, using a proprietary torch, torch seal seams; ensure a full bond is achieved.
    6. Cap Sheet: (two-ply membrane)
      1. Start at low point and in same direction as base sheet.
      2. Unroll and align membrane; stagger side laps and end laps minimum [( ) mm ( )"] from those in base sheet; cap sheet side laps [( ) mm] [( )"] and end laps [( ) mm] [( )"]; stagger end laps [( ) mm] [( )"].
      3. Carry cap sheet to [top of cant] [base of wall / curb]. (See notes on base sheet, Clause 3.5.3)
      4. Reroll approximately half the membrane into a firm roll.
      5. Install cap sheet [in hot asphalt as outlined for base sheet, clauses 3.5.4.1 to 3.5.4.6] [torch-adhered as outlined for base sheet, clauses 3.5.5.1 to 3.5.5.7]. (Some membrane manufacturers permit hot asphalt applied cap sheets with torched seams as an option.)
      6. Embed granules at end laps of torched cap sheets; use a torch to soften the bitumen and a heated trowel to push the granules into the bitumen; do not scrape granules away.
    7. Membrane Flashings:
      Base and cap membrane flashing details vary and should be consulted. For example, many membrane manufacturers require the base membrane flashing be installed prior to the roof membrane cap sheet, while some require both base and cap membrane flashing be applied after the roof membrane is complete. In all cases the manufacturer's details / requirements should be strictly adhered to.
      1. Base membrane flashing:
        1. Cut membrane in 1 m (39") wide, the roll width, by the length required to suit detail.
        2. Extend membrane base flashing from minimum [( ) mm] [( )"] out onto roof [from toe of cant], to minimum [200 mm] [8"] above completed roof assembly surface.
        3. Stagger side laps in membrane base flashing [minimum ( ) mm ( )"] from side and end laps in roof membrane [base] [cap] sheet.
        4. Install membrane base flashing [in hot asphalt] [torch-adhered] and mechanically fasten according to membrane manufacturer's detail. (In most cases, torch-adhered flashing is preferred, consult membrane manufacturer.)
        5. Bevel torched membrane base flashing edges and seams with a torch-heated trowel.
      2. Cap membrane flashing:
        1. Cut membrane in 1 m (39") wide, the roll width, by the length required to suit detail.
        2. Extend membrane cap flashing from minimum [( ) mm] [( )"] out onto roof [from toe of cant], to minimum [200 m] [8"] above completed roof assembly surface. (Membrane manufacturer may require the membrane cap flashing carried to outside of wall / detail or inside of curbs / openings and then mechanically fastened.)
        3. Stagger side laps in membrane cap flashing [( ) mm] [( )"] from side laps of membrane base flashing and from side and end laps of roof membrane cap sheet.
        4. Install membrane cap flashing [in hot asphalt] [torch-adhered and mechanically-fastened] according to membrane manufacturer's details. (Torch-adhered usually preferred, consult membrane manufacturer.)
        5. Press firmly into place using a damp cloth; remove air pockets.
    8. Single-Ply Membrane:
      Single-ply systems are offered by some SBS and APP modified membrane manufacturers. Consult membrane manufacturer and RGC Guarantee Standards for detailed installation instructions.
    9. Gravel Surfacing:
      Pour coat and gravel surfacing may be an alternative to mineral surfaced cap sheets, consult membrane manufacturer.
      1. Embed 20 kg / meter squared (400 lb / square) gravel into a single pour of 3.0 kg / meter squared (60 lb / square) hot asphalt; ensure gravel completely covers asphalt.
    10. Protected or Modified Protected Membrane Roof Assembly:
      1. Loose lay CAN / ULC-S701-97 Type 4 extruded expanded polystyrene rigid insulation over completed membrane; butt boards tightly together.
      2. Install filter fabric over insulation in shingle fashion, in direction of slopes, lapping 300 mm (12").
      3. Install {[( ) kg / meter squared] [( ) lb / square] gravel ballast} [( ) x ( ) x ( ) mm thick pavers] over insulation. (The amount of ballast required varies according to insulation buoyancy (related to thickness) and wind uplift; refer to insulation manufacturer's latest printed recommendations for gravel rates.)

8 7. SBS Construction Details

The drawings contained within this section are intended to represent a variety of modified bituminous roof system designs while remaining generic with regards to manufacturers’ specific application specifications. They do not represent all possible manufacturer application roof system designs. Consult manufacturers’ specifications and RGC Guarantee Standards to develop a system acceptable to both the manufacturer and RGC.

For further information about flexible membrane system designs, see Section 2.1.3 Guarantee standards for Flexible Membrane Roofing Systems, Section 5 Flexible Membrane Roofing Systems and Section 8 Construction Details.

Modified Bituminous Membrane Construction Details

D1.7.1 Insulated Steel Deck: Generic Conventional Assembly
D1.7.2 Cant Edge
D1.7.3 Protected Membrane
D1.7.4 Curb Opening
D1.7.5 Clamping Copper Drain
D1.7.6 Two Part Cable Flashing
D1.7.7 Mechanical Curb Opening
D1.7.8 Pre-Curb Planter Wall

Click on any one of the tabs to the right to see details for each detailed application of SBS roofing

1 MODIFIED BITUMINOUS MEMBRANE:INSULATED STEEL DECK GENERIC CONVENTIONAL ASSEMBLY

D1.7.1.jpg

1.1 WORK INCLUDED

(1) Gypsum Board
Required when insulation is too thin to span flutes of steel decking (see RGC Guarantee Standard A2.5) or when required as a thermal barrier by design authority.
(2) Vapor Retarder
If required by design authority.
(3) Insulation
Mechanically fastened. (See Section 2.2 for accepted materials and Section 2.1.1 RGC Guarantee Standards A4.3 and A4.4.2).
(4) Overlay Board
Asphalt adhered or mechanically fastened. Two layers required over heat-sensitive insulation. (See RGC Guarantee Standard C4.1)
(5) Base Sheet
Adhered to overlay board using asphalt, cold adhesive, self-adhered, mechanical attachment or torch applied according to manufacturer’s specification. Torching directly to wood surfaces is not permitted.
(6) Base Sheet Flashing
Adhered according to manufacturer’s specifications using cold adhesive, hot asphalt self-adhered or torch applied to cover boards, or mechanically attached membrane. Torching directly to wood surfaces is not permitted. Must be carried over to outside of parapet or minimum 200 mm (8") above finished roof surface. (See RGC Guarantee Standards Section 2.1.1, A5.6, and Section 2.1.3, C8.5).
(7) Cap Sheet
Applied according to manufacturer’s printed instructions, all options.
(8) Cap Sheet Flashing
Applied according to manufacturer’s printed instructions to top of parapet or minimum 200 mm (8") above finished roof surface. All options.
(9) Metal Flashing
As required by RGC Guarantee Standards. (See RGC Guarantee Standard A6.9 and A6.10)

1.2 RELATED WORK BY OTHERS

(A) Acceptable Steel Deck
(B) Plywood Backing
Required on rough surfaces or where adhesive is asphalt. Must be primed.
(C) Wood Blocking
Sloped to roof where parapet is over 100 mm (4") in width. Must be primed.
(D) Primer
Prime wood substrate to receive self-adhesive base membrane stripping.

NOTE: Refer to RGC Guarantee Standards for additional requirements.

1 MODIFIED BITUMINOUS MEMBRANE: CANT EDGE

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1.1 WORK INCLUDED

(1) Vapor Retarder
If required by design authority.
(2) Insulation
Mechanically fastened where deck type permits. (See list of accepted materials in Section 2.2). (See Section 2.1.1 RGC Guarantee Standard A4.4
(3) Overlay Board
Asphalt adhered or mechanically fastened. Two layers required over heat-sensitive insulation. (See RGC Guarantee Standard C4.1)
(4) Base Sheet
Adhered to overlay board using asphalt, cold adhesive, self-adhered, mechanical attachment or torch applied according to manufacturer’s specification. Torching directly to wood surfaces is not permitted.
(5) Base Sheet Flashing
Adhered according to manufacturer’s specifications, using cold adhesive, hot asphalt self-adhered or torch applied to cover boards, or mechanically attached membrane. Must be carried over to outside of fascia. Torching directly to wood surfaces is not permitted. (See RGC Guarantee Standards Section 2.1.1, A5.6, and Section 2.1.3, C8.5).
(6) Cap Sheet
Applied according to manufacturer’s printed instructions and RGC Guarantee Standards.
(7) Cap Sheet Flashing
Applied according to manufacturer’s printed instructions and RGC Guarantee Standards up to the top of cant.
(8) Metal Flashing
As required by RGC Guarantee Standards. (See RGC Guarantee Standard A6.9 and A6.10)

1.2 RELATED WORK BY OTHERS

(A) Acceptable Deck
Smooth, dry and clean.
(B) Fascia
Optional.
(C) Wood Blocking
Equal to height of insulation and overlay board, primed wherever in contact with asphalt.

NOTE: Refer to RGC Guarantee Standards for additional requirements.

1 MODIFIED BITUMINOUS MEMBRANE: PROTECTED MEMBRANE

D1.7.2.jpg

1.1 WORK INCLUDED

(1) Base Sheet
Adhered to deck using asphalt, cold adhesive, self-adhered, torch applied membrane or loose laid according to manufacturer’s specification and to RGC Guarantee Standards.
(2) Base Sheet Flashing
Adhered according to manufacturer’s specifications using cold adhesive, self-adhered or torch applied to cover boards, or mechanically attached membrane. Torching directly to wood surfaces is not permitted. Must be carried over to outside of parapet or minimum 200 mm (8") above finished roof surface. (See RGC Guarantee Standards Section 2.1.1, A5.6, and Section 2.1.3, C8.5).
(3) Cap Sheet
Applied according to manufacturer’s printed instructions and RGC Guarantee Standards.
(4) Cap Sheet Flashing
Applied according to manufacturer’s printed instructions and RGC Guarantee Standards to top of parapet or minimum 200 mm (8") above top of finished roof surface.
(5) Insulation
See list of accepted materials in Section 2.2.
(6) Filter Fabric
Metal base flashing required. (See RGC Guarantee Standard A6.9.1.2)
(7) Ballast
Gravel or concrete paving tiles. (See RGC Guarantee Standards Section 2.1.1, A5.2)
(8) Metal Flashing
As required by RGC Guarantee Standards. (See RGC Guarantee Standard A6.9 and A6.10)

1.2 RELATED WORK BY OTHERS

(A) Acceptable Deck
Smooth, dry and clean concrete, coated with proprietary primer.
(B) Plywood Backing
Required on rough concrete or where stripping adhesion is asphalt. Must be primed.
(C) Wood Blocking
Sloped to roof where parapet is over 100 mm (4") in width.

NOTE: Refer to RGC Guarantee Standards for additional requirements.

1 MODIFIED BITUMINOUS MEMBRANE: CURB OPENING

D1.7.4.jpg

1.1 WORK INCLUDED

(1) Gypsum Board
Required when insulation is too thin to span flutes of steel decking (See RGC Guarantee Standard A2.5) or when required as thermal barrier by design authority.
(2) Vapor Retarder
If required by design authority.
(3) Insulation
Mechanically fastened. (See Section 2.2 for accepted materials). (See Section 2.1.1 RGC Guarantee Standard A4.4).
(4) Overlay Board
Asphalt adhered or mechanically fastened. Two layers required over heat-sensitive insulation. (See RGC Guarantee Standard C4.1)
(5) Base Sheet
Adhered to overlay board using asphalt, cold adhesive, self-adhered, mechanical attachment or torch applied according to manufacturer’s specification and to RGC Guarantee Standards. Torching directly to wood surfaces is not permitted.
(6) Base Sheet Flashing
Adhered according to manufacturer’s specifications, using cold adhesive, self-adhered, or torch applied to cover boards, or mechanically attached membrane. Torching directly to wood surfaces is not permitted. (See RGC Guarantee Standards Section 2.1.1, A5.6, and Section 2.1.3, C8.5).
(7) Cap Sheet
Applied according to manufacturer’s printed instructions and to RGC Guarantee Standards.
(8) Cap Sheet Flashing
Applied according to manufacturer’s printed instructions and to RGC Guarantee Standards to top of curb.
(9) Metal Flashing
As required by RGC standards. (See RGC Guarantee Standard A6.9 and A6.10)

1.2 RELATED WORK BY OTHERS

(A) Acceptable Deck
(B) Wood Blocking
Minimum 200 mm (8") in height. (See asphalt adhered or mechanically fastened. Two layers required over heat-sensitive insulation. (See RGC Guarantee Standard A5.6.2) Cant is optional.

NOTE: Refer to RGC Guarantee Standards for additional requirements.

1 MODIFIED BITUMINOUS MEMBRANE: CLAMPING COPPER DRAIN

D1.7.5.jpg

1.1 WORK INCLUDED

(1) Gypsum Board
Required when insulation is too thin to span flutes of steel decking or as thermal barrier when specified by the design authority. (See RGC Guarantee Standard A2.5)
(2) Vapor Retarder
If required by design authority.
(3) Insulation
Mechanically fastened where possible. (See Section 2.2 for accepted materials and RGC Guarantee Standard A4.4).
(4) Overlay Board
Asphalt adhered or mechanically fastened. Two layers required over heat-sensitive insulation. (See RGC Guarantee Standard C4.1)
(5) Base Sheet
Adhered to overlay board using asphalt, cold adhesive, self-adhered, mechanical attachment or torch applied according to manufacturer’s specification and to RGC Guarantee Standards. Torching directly to wood surfaces is not permitted.
(6) Mastic
Compatible mastic accepted by the membrane manufacturer.
(7) Base Sheet Flashing
Adhered according to manufacturer’s specifications and to RGC Guarantee Standards.
(8) Cap Sheet
Applied according to manufacturer’s printed instructions and to RGC Guarantee Standards.

1.2 RELATED WORK BY OTHERS

(A) Acceptable Deck (B) Clamping Copper Drain: Primed and mechanically fastened. Installed in bed of compatible mastic.

NOTE
Refer to RGC Guarantee Standards for additional requirements.
Leader size is determined by design authority using the calculation found in the BC Building Code at Appendix P.7.4.10 and Sectionle 7.4.10.11 (Sectionle 7.4.10.10 for gutters) in conjunction with the 15 minute rainfall value from the National Building Code, Appendix C.

1 MODIFIED BITUMINOUS MEMBRANE: TWO PART CABLE FLASHING

D1.7.6.jpg

1.1 WORK INCLUDED

(1) Gypsum Overlay Board
Required when insulation is too thin to span flutes of steel decking or as thermal barrier when specified by the design authority. (See RGC Guarantee Standard A2.5).
(2) Vapour Retarder
If required by design authority.
(3) Insulation
Mechanically fastened where possible. (See Section 2.2 for accepted materials and RGC Guarantee Standard A4.4).
(4) Insulation Overlay
As required. See RGC Guarantee Standard C4.1
(5) Base Sheet
Adhered to overlay board using asphalt, cold adhesive, self-adhered, mechanical attachment or torch applied according to manufacturer’s specification and to RGC Guarantee Standards. Torching directly to wood surfaces is not permitted.
(6) Mastic
Compatible with membrane
(7) Base Sheet Flashing
Adhered according to manufacturer’s specifications, using cold adhesive, self-adhered or torch applied. Must be carried up flashing and terminate under hood flange. Torching directly to wood surfaces is not permitted. (See RGC Guarantee Standards Section 2.1.1, A5.6, and Section 2.1.3, C8.5).
(8) Cap Sheet
Applied according to manufacturer’s printed instructions and to RGC Guarantee Standards.
(9) Cap Sheet Flashing
Applied according to manufacturer’s printed instructions and to RGC Guarantee Standards. Must be carried up flashing and terminate under hood flange.

1.2 RELATED WORK BY OTHERS

(A) Acceptable Deck
(B) Wood Blocking
(C) Two Piece Flashing
Assembled around protrusion, laid in bed of compatible mastic on top of base sheet. Mechanically fasten two componentstogether and fasten flange to wood blocking or deck.

NOTE: Refer to RGC Guarantee Standards for additional requirements.

1 MODIFIED BITUMINOUS MEMBRANE: MECHANICAL CURB OPENING

D1.7.7.jpg

1.1 WORK INCLUDED

(1) Gypsum Overlay Board
Required when insulation is too thin to span flutes of steel decking (See RGC Guarantee Standard A2.5) or when required as thermal barrier by design authority.
(2) Vapour Retarder
If required by design authority.
(3) Insulation
Mechanically fastened where possible. (See Section 2.2 for accepted materials and Guarantee Standard A4.4).
(4) Insulation Overlay
As required. See RGC Guarantee Standard C4.1
(5) Base Sheet
Adhered to overlay board using asphalt, cold adhesive, self-adhered, mechanical attachment or torch applied according to manufacturer’s specification. Torching directly to wood surfaces is not permitted.
(6) Base Sheet Flashing
Adhered according to manufacturer’s specifications, using cold adhesive, hot asphalt, self-adhered or torch applied to cover boards, or mechanically attached membrane. Must be tucked under metal flange and mechanically attached to nailing strip. (See RGC Guarantee Standards Section 2.1.1, A5.6, and Section 2.1.3, C8.5).
(7) Cap Sheet
Applied according to manufacturer’s printed instructions and to RGC Guarantee Standards.
(8) Cap Sheet Flashing
Applied according to manufacturer’s printed instructions and to RGC Guarantee Standards. Must be tucked under metal flange and mechanically attached to the nailing strip.
(9) Metal Base Flashing
Mechanically fasten, standing seam at corners. Full width base flashing optional on flexible membranes. Partial skirt flashing minimum 75 mm (3") required on mechanical curbs that require flashing under metal flange. (See Detail Section 8.3.5).

1.2 RELATED WORK BY OTHERS

(A) Acceptable Deck
(B) Rigid Insulation
(C) Mechanical Curb
Minimum 200 mm (8") and maximum 300 mm (12") above finished roof surface.
NOTE
  • Some mechanical curbs are designed to allow membrane flashing to be carried up onto metal flange, as illustrated. Install according to manufacturers’ instructions.
  • Refer to RGC Guarantee Standards for additional requirements

1 MODIFIED BITUMINOUS MEMBRANE: PRE-CURB PLANTER WALL PROTECTED MEMBRANE ROOF ASSEMBLY

D1.7.8.jpg

D1.7.8a.jpg

1.1 WORK INCLUDED

(1) Primer
Application method and coverage rate as approved by Primary Membrane Manufacturer.
(2) Primary Roof Membrane
Modified Bituminous base and cap sheet membranes installed as per manufacturer’s published application specifications.
(3) Pre-Curb (Start-Up Curb) Membrane Flashing
Modified Bituminous base and cap sheet membrane flashing installed as per manufacturer’s published application specifications.
(4) Proprietary liquid membrane flashing System
RGC accepted Liquid Membrane Flashing System(s) (Refer to RPM Section2.2, Section 5.2) or hot melt SBS modified bitumen. Install as per the Manufacturer’s published instructions.
(5) Inside
Planter Wall Membrane Flashing: Adhered according to manufacturer’s specifications using cold adhesive, self- adhered or torch applied membrane. Torching directly to wood surfaces is not permitted. Carry membrane flashing plies to reglet termination near top of planter wall (stagger membrane seal minimum 300mm (6”).
(6) Reglet
Metal Counter Flashing: As required by RGC Guarantee Standards. (See RGC Guarantee Standard A6.9)
(7) Plaza Deck Assembly
Extruded polystyrene insulation and filter mat over primary roof membranes. Concrete pavers placed above pre-curb membrane flashing height, on proprietary pedestals. Note: membrane flashing is not permitted above pre-curb membrane flashing on plaza deck side of planter walls.

1.2 RELATED WORK BY OTHERS

(A) Acceptable Deck
Concrete slab shown. Each planter area must have a drain through the roof deck.
(B) Pre- Curb
Minimum of 100mm (4”) in height above concrete deck, smooth dry and clean.
(C) Cast over Concrete Planter Wall
Form on top of membrane sealed Pre-curbs or Start-up curbs.
(D) Re-Bar
Placed a centre of Pre-curb.
(E) Reglet
Premanufactured purpose-made reglet cast in concrete wall or saw-cut.
(F) Alternate Termination
Horizontal Reglet alternative to premanufactured purpose-made reglet cast in concrete wall or saw-cut on vertical surface of inside planter walls.

NOTE: Refer to RGC Guarantee Standards for additional requirements.

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