Waterproofing Guide Specifications (Hot-applied Rubberized Asphalt Waterproofing Systems)

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

Edit and amend to suit required purpose.

PROJECT No. (OPTIONAL) Section 07 55 56.14 PROJECT NAME (OPTIONAL) HOT FLUID APPLIED RUBBERIZED ASPHALT WATERPROOFING

Part 1 General

1.1 SECTION INCLUDES: .1 Materials and installation for hot applied rubberized asphalt (HARA) waterproofing in a protected membrane (PMR) systems.

1.2 REFERENCES

.1 RCABC Guarantee Corp. (RGC)

.1 RCABC Guarantee Corp. RCABC Roofing Practices Manual-[Latest Edition]

.2 RGC Guarantee Standards [E Waterproofing]

.2 American Society for Testing and Materials International, (ASTM).

.1 ASTM C1177/C1177M-[01], Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing.

.3 Canadian General Standards Board (CGSB).

.1 CGSB 37-GP-9Ma-[83], Primer, Asphalt, Unfilled, for Asphalt Roofing, Dampproofing.

.2 CAN/CGSB-37.29- [M89], Rubber-Asphalt Sealing Compound

.3 CAN/CGSB-37.51- [M90], Application for Hot-Applied Rubberized Asphalt, for Roofing and Waterproofing

.4 Canadian Standards Association (CSA International)

.1 CSA-A231.2-[95(R2000)], Precast Concrete Pavers.

.5 Health Canada/Workplace Hazardous Materials Information System (WHMIS)

.1 Material Safety Data Sheets (MSDS)

.6 Underwriters' Laboratories of Canada (ULC)

.1 CAN/ULC-S701-[01], Standard for Thermal Insulation, Polystyrene, Boards and Pipe Covering.

1.3 SUBMITTALS: .1 Provide submittals in accordance with Section [01 33 00 - Submittal Procedures] [___].; .2 Provide the owner with an "RGC Waterproofing System Record" upon completion of this contract. (Includes RoofStar Guarantee, copies of Inspection Reports, Membrane Moisture Survey Report and a Maintenance Guide.)

.3 Product Data:

.1 Provide [two] [___] copies of most recent technical waterproofing components data sheets describing materials' physical properties and include product characteristics, performance criteria, physical size, finish and limitations.

.2 Provide [two] [___] copies of WHMIS MSDS in accordance with Section [01 35 29.06 - Health and Safety Requirements] [01 35 43 - Environmental Procedures], and indicate VOC content for:

.1 Primers.

.2 Adhesives

.3 Sealers

.4 Geosynthetic or Geocomposites Drainage Board

.5 Filter fabric.

.6 Test and Evaluation Reports: submit laboratory test reports certifying compliance of [Thermoplastic] [and] [and] [membrane] with specification requirements.

.7 Manufacturer's Installation Instructions: indicate special precautions required for installation of the membrane.

.8 Manufacturer's field report: in accordance with Section [01 45 00 - Quality Control] [___].

.9 Reports: indicate procedures followed ambient temperatures and wind velocity during application, [and] [___].

.10 Sustainable Design Submittals:

.1 LEED Submittals: in accordance with [Section 01 35 21 - LEED Requirements] [___].

1.4 QUALITY ASSURANCE

.1 Sustainability Standards Certification:

.1 Recycled Content: [provide listing of recycled content products used, including details of required percentages or recycled content materials and products, showing their costs and percentages of [post-consumer] [and] [post-industrial] content, and total cost of materials for project] [___].

.2 Regional Materials: provide evidence that project incorporates required percentage [10] [20] % of regional materials/products, showing their cost, distance from project to furthest site of extraction or manufacture, and total cost of materials for project.

.2 Workmanship Standards:

.1 Conform to the latest Guarantee Standards of the RCABC Guarantee Roofing Corp. (RGC) as published in the "RGC Roofing Practices Manual" for a five (5) year Waterproofing 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.

.3 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) year Waterproofing 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) year Waterproofing Guarantee Program.

.3 Inspection costs for this Guarantee are included in this contract.

.5 Membrane Moisture Survey (Scan):

.1 Perform using an independent Moisture Detection company acceptable to RGC, [the owner, and the consultant] namely: (name of Moisture Detection Company). Perform using an independent Moisture Detection company acceptable to [the owner, and the consultant] to be assigned by [the owner, and the consultant or RGC].

1.5 DELIVERY, STORAGE AND HANDLING: .1 Deliver, handle, store and protect materials of this section in accordance with Section [01 61 00 - Common Product Requirements] [___].; .2 Provide and maintain dry, off-ground weatherproof storage.; .3 Stand roll materials on end.; .4 Remove only in quantities required for same day use.; .5 Store insulation protected from [sunlight] [and] [weather] and deleterious materials.; .6 Store materials in accordance with manufacturer's written instructions to prevent damage or loss of performance.

1.6 GUARANTEE AND WARRANTY: .1 For Work of this Section [07 55 56.14 - Hot Fluid Applied Rubberized Asphalt Waterproofing] Provide the RCABC Guarantee Corp. (RGC) Standard Five (5) year Waterproofing Guarantee.; .2 Provide a Membrane Manufacturer [material warranty] for [10] [___] years.

1.7 WASTE MANAGEMENT AND DISPOSAL: .1 Separate waste materials for [reuse] [and] [recycling] in accordance with Section [01 74 21 - Construction/Demolition Waste Management and Disposal] [___].; .2 Remove from site and dispose of packaging materials at appropriate recycling facilities.; .3 Collect and separate for disposal [paper] [plastic] [polystyrene] [corrugated cardboard] packaging material [in appropriate on-site bins] [___] for recycling in accordance with Waste Management Plan.; .4 Separate for [reuse] [and] [recycling] and place in designated containers [Steel] [Metal] [Plastic] waste in accordance with Waste Management Plan.; .5 Place materials defined as hazardous or toxic in designated containers.; .6 Handle and dispose of hazardous materials in accordance with the CEPA, TDGA, Regional and Municipal regulations.; .7 Divert unused metal materials from landfill to metal recycling facility as approved by [Departmental Representative] [Engineer] [Consultant] [___].; .8 Divert unused aggregate materials from landfill to local [quarry] [facility] for reuse as approved by [Departmental Representative] [Engineer] [Consultant] [___].; .9 Unused sealants, caulking and asphalt materials must not be disposed of into sewer system, into streams, lakes, onto ground or in other location where it will pose health or environmental hazard. Divert unused materials to municipal hazardous materials depot approved by [Departmental Representative] [Engineer] [Consultant] [___].; .10 Divert unused geotextiles from landfill to plastic recycling facility for disposal as approved by [Departmental Representative] [Engineer] [Consultant] [___].; .11 Divert unused concrete materials from landfill to local [quarry] [facility] approved by [Departmental Representative] [Engineer] [Consultant] [___].; .12 Divert wood materials from landfill to [recycling] [reuse] [composting] facility approved by [Departmental Representative] [Engineer] [Consultant] [___].; .13 Divert unused gypsum from landfill to gypsum recycling facility for disposal as approved by [Departmental Representative] [Engineer] [Consultant] [___].; .14 Collect, package and store part, unused containers of asphalt, sealing compounds and primers and their contents for recycling and return to recycler in accordance with Waste Management Plan.; .15 Fold up metal banding, flatten and place in designated area for recycling.

1.8 PROJECT/SITE ENVIRONMENTAL REQUIREMENTS

.1 Temperature, relative humidity, moisture content.

.1 Apply HARA membranes only when surfaces and ambient temperatures are within manufacturers' prescribed limits.

.2 Do not install HARA membrane when air and substrate temperature remains below [5 degrees C] [___], or when wind chill gives equivalent cooling effect.

.3 Install HARA membrane on dry substrate, free of snow and ice, use only dry materials and apply only during weather that will not introduce moisture into system.

.2 Safety: Comply with requirements of Workplace Hazardous Materials Information System (WHMIS) regarding use, handling, storage, and disposal of rubberized asphalt, sealing compounds, primers and caulking materials.

Part 2 Products

2.1 COMPATIBILITY: .1 Compatibility between components of system and adjacent materials is essential. Provide written declaration to [Departmental Representative] [Engineer] [Consultant] [___] stating that materials and components, as assembled in system, meet this requirement.

2.2 DECK COVERING - STEEL DECK

.1 Gypsum board: ASTM C1177/C1177M-[01], Glass Mat Gypsum Substrate for Use as Sheathing, [12.7] [15.9] mm thick] [thickness as indicated] or Fibre-mat reinforced cement board to ASTM C1325-04 [Non-Asbestos] [9.5] [12.7] mm thick.

.2 EcoLogo certified.

.3 Recycled content:

.1 Contain minimum [10] % by weight of recycled material in core of finished product.

.2 Contain minimum [20] % by weight of FGD gypsum and [5] % by weight of recycled material in core.

2.3 PRIMERS: .1 Asphalt primer: to [CGSB 37-GP-9Ma] [___], VOC content [___].

2.4 RUBBERIZED ASPHALT: .1 Hot applied rubberized asphalt: to [CAN/CGSB-37.50] [___], VOC content [___].

2.5 REINFORCEMENT: .1 Membrane reinforcement: fabric, glass mat or spun-bonded polyester as recommended by membrane manufacturer and compliant with RGC Guarantee Standards E.; .2 Crack and joint reinforcement: elastomeric sheet, Butyl, EPDM or Chloroprene rubber, uncured neoprene thickness minimum [1.6] mm.

2.6 PROTECTION LAYER: .1 Protection Board: [4.5] [6] mm thick asphalt core board with non-woven glass facers, or internal glass fibres reinforcement, as recommended by the membrane manufacturer [___].

2.7 POLYSTYRENE INSULATION

.1 Extruded polystyrene (XPS): to CAN/ULC-S701, Type [4], thickness [[___] mm] [as indicated], [square] [shiplapped] [vented] edges.

.1 EcoLogo certified

.2 Recycled content: [minimum [___] % [recycled material per total weight of single batch] [as average percentage of recycled content for consecutive 12 month period]].

.3 VOC content: [CFC free] [and] [HCFC free] [without ozone depletion potential greater than zero], RSI indicated.

.4 Only polystyrene insulations listed on CGSB Qualified Products List (51 GP Series) are acceptable for use on this project.

2.8 SEALERS: .1 Plastic cement: [to CAN/CGSB -37.5, cutback asphalt type] [hot rubberized asphalt membrane] [recycled content [___]].; .2 Sealing compound: to [CAN/CGSB-37.29] [___], rubber asphalt type [recycled content [___].; .3 Sealant: [Asbestos-free sealant, compatible with systems materials, recommended by system manufacturer] [Caulking - see Section 07 92 10 - Joint Sealing [___]].

2.9 FASTENERS: .1 Sheathing to steel substrate: No.10 flat head, self tapping, Type A or AB, corrosive resistant plated screws.

2.10 FILTER FABRIC: .1 UV resistant, black woven polyolefin fabric for installation between insulation and stone ballast in protected membrane system. Fabric to meet recommendation of insulation manufacturer.

2.11 BALLAST: .1 Stone: [19 to 32] [___] mm size, well graded round or crushed stone, opaque, non-porous, washed, free from fines, splinters, ice and snow.; .2 Paving slabs: to [CSA A231.2] [___], [[___] x [___] x [___] mm thick] [of sizes indicated] [natural] [exposed aggregate] [integral coloured] [air entrained] precast concrete paving slabs having non-slip finish with [51] [___] mm plain margin around perimeter.; .3 [Unit masonry] brick, tile or stone placed on sand and or gravel beds [compliant with RoofStar guarantee standard E11] require moisture monitoring sensor grid on top of the waterproofing membrane in order to locate breaches in membranes. [Refer to 1.5.5 QUALITY ASSURANCE]; .4 [Solid Wearing Courses] cast-in place concrete protection slabs [split-slab] and asphalt paving wearing courses [inaccessible wearing courses] shall be [compliant with RoofStar guarantee standard E11], incorporate surface score lines [indents]. Score lines shall be straight edged grid patterns [squares, rectangles, diamonds, etc.] to facilitate cutting. Indents shall be spaced at a maximum of [2 metres] apart in any direction.

2.12 GEOSYNTHETIC DRAINAGE CORES and GEOCOMPOSITES: .1 Molded [dimpled] [woven] plastic grids, a minimum of [9.5 mm (3/8") thick] or greater [CCMC Listing No. _____] shall provide uniform support and traffic-bearing properties for overburdens and wearing courses. Geosynthetic drainage cores and geocomposites with factory laminated filter fabric accepted and listed by RoofStar Guarantee Program.

2.13 PAVER PEDESTALS: .1 Pedestals and levelling plates made of high density polyethylene with integral spacer ribs on upper surface.

2.14 FIXING BARS: .1 Metal bars 3 mm thick x 25 mm wide, predrilled for fasteners at 225 mm on centre.

Part 3 Execution

3.1 SUBSTRATE EXAMINATION

.1 Examine substrates and immediately inform [Departmental Representative] [Engineer] [Consultant] [___] in writing of defects.

.2 Prior to beginning of Work ensure:

.1 Substrates are firm, straight, smooth, dry, free of snow, ice or frost, contamination and swept clean of dust and debris.

.2 Curbs have been built.

.3 Drains have been installed at proper elevations relative to finished surfaces.

.4 Sleeves, vents, pipes and other items passing through substrates receiving work of this Section are properly and rigidly installed.

3.2 PREPARATION - PROTECTION: .1 Cover walls, walks [, sloped roofs] [___] and adjacent work where materials hoisted or used.; .2 Use warning signs and barriers. Maintain in good order until completion of Work.; .3 Clean off drips and smears of bituminous material immediately.; .4 Dispose of rain water away from face of building until drains or hoppers installed and connected.; .5 Protect from traffic and damage. Comply with precautions deemed necessary by [Departmental Representative] [Engineer] [Consultant] [___].; .6 Place plywood runways over work to enable movement of material and other traffic.; .7 At end of each day's work or when stoppage occurs due to inclement weather, provide protection for completed Work and materials out of storage.; .8 Seal and ballast exposed edges.; .9 Free substrates from curing compounds, dust and loose particles, grease, paint, frost, form oil and other material detrimental to bond of membrane materials.; .10 Heat membrane in double shell indirect fired melter using high flash point oil as heat transfer medium. Equip melter with positive mechanically operated agitator, and thermometers. Under no circumstances is membrane material to be heated in direct heating kettle.

3.3 PREPARATION OF CONCRETE DECK: .1 Prepare decks as per RGC Guarantee Standards E, concrete deck preparation.; .2 Apply primer to dry substrate in accordance with [CAN/CGSB-37.51] [___].

3.4 DECK COVERING FOR STEEL DECK: .1 Lay [Glass Mat Gypsum Board] or [Cementitous Board] with tightly butted joints.

3.5 MEMBRANE: .1 Install hot applied rubberized asphalt, reinforcement fabric and flashings in accordance with [CAN/CGSB-37.51] [___].; .2 Ensure continuity of building envelope air barrier.

3.6 OVERLAY BOARD: .1 Protection Board: [4.5] [6] mm thick asphalt core board with non-woven glass facers, or internal glass fibres reinforcement, as recommended by the membrane manufacturer] [___].; .2 Install protection board while rubberized asphalt membrane is still "tacky". Lap 10 to 25 mm to ensure complete coverage or install SBS modified bituminous membrane while rubberized asphalt membrane is still hot.

3.7 INSULATION APPLICATION

.1 Apply insulation loose laid immediately after application of separation sheet.

.1 Butt insulation boards tightly, in parallel rows with staggered end joints.

.2 Cut and fit around peripheries and items passing through insulation.

3.8 FILTER FABRIC APPLICATION: .1 Apply continuous layer of filter fabric un-bonded over installed insulation lapping joints 300 mm minimum.; .2 Cut fabric around drains, vents and other penetrations and extend up protrusions and place under metal flashings.

3.9 BALLAST AND PROTECTIVE COVERING: .1 Apply stone ballast, as soon as possible after placement of [fabric] [insulation], at minimum rate of [75] [___] kg/m².; .2 Spread stone ballast to an even thickness over entire area. Extend ballast over base of metal flashings by 100 mm.; .3 Spread additional stone ballast around perimeter for width of 1200 mm to increase ballast weight to [___] kg/m².; .4 Install paving slabs over fabric on paver levelling pads accurately aligned and levelled. Shim up as required to obtain smooth surface transition from slab to slab. Allow space between slabs to permit drainage of surface water.

3.10 PROTECTION OF COMPLETED WORK: .1 Ensure membrane is undamaged before application of protection board.; .2 Apply protection board to cover membrane [at locations as indicated] [below grade] [below concrete] [below paving].

3.11 CLEANING: .1 Clean Work in accordance with Section [01 74 11 - Cleaning] [___].; .2 Clean to [Departmental Representative's] [Engineer] [Consultant's] [___] approval, soiled surfaces, spatters, and damage caused by Work of this Section.; .3 Check area drains to ensure cleanliness and proper function, and remove debris, equipment and excess material from site.

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