Template:All Systems - MEMBRANES SBS - Revision history

James Klassen at 22:55, 9 November 2018

2018-11-09T22:55:04Z

James Klassen: /* Material Selection */

2018-07-20T21:35:22Z

‎Material Selection

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James Klassen: /* Material Selection */

2018-07-12T16:00:09Z

‎Material Selection

James Klassen: /* Material Selection */

2018-02-16T19:54:30Z

‎Material Selection

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James Klassen: /* Material Selection */

2017-10-18T22:23:27Z

‎Material Selection

James Klassen: /* General */

2017-08-24T18:11:00Z

‎General

James Klassen: /* Material Selection */

2017-07-11T16:49:07Z

‎Material Selection

James Klassen: /* General */

2017-02-01T16:56:42Z

‎General

James Klassen: /* Wood Decks */

2017-01-26T15:47:56Z

‎Wood Decks

James Klassen: /* {{hilite | Cold-Applied and Self-Adhered Membranes || 2018-January-25 }} */

2017-01-25T21:34:30Z

‎{{hilite | Cold-Applied and Self-Adhered Membranes || 2018-January-25 }}

← Older revision		Revision as of 22:55, 9 November 2018
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	<span class="principles">The '''''RoofStar Guarantee Program''''' accepts cold adhesive applied membranes installed over wood surfaces to manufacturers’ product installation specifications.</span>		<span class="principles">The '''''RoofStar Guarantee Program''''' accepts cold adhesive applied membranes installed over wood surfaces to manufacturers’ product installation specifications.</span>
−
−	~~<div id=SBSPMRA></div>~~

	=== Protected and Modified Protected Membranes ===		=== Protected and Modified Protected Membranes ===

@@ Line 40: / Line 40: @@
 !              colspan="1" rowspan="1" style="vertical-align:center;text-align:center;"      |              <span style="color:#2a4b8d">Torch-<br>Applied  </span>
 !              colspan="1" rowspan="1" style="vertical-align:center;text-align:center;"      |              Thickness
-!              colspan="1" rowspan="1" style="vertical-align:center;text-align:center;"      |              Puncture<br>Resistance
+!              colspan="1" rowspan="1" style="vertical-align:center;text-align:center;"      |              Puncture<br>Resistance (N)
 !              colspan="1" rowspan="1" style="vertical-align:center;text-align:center;"      |              Thickness
-!              colspan="1" rowspan="1" style="vertical-align:center;text-align:center;"      |              Puncture<br>Resistance
+!              colspan="1" rowspan="1" style="vertical-align:center;text-align:center;"      |              Puncture<br>Resistance (N)
 !              colspan="1" rowspan="1" style="vertical-align:center;text-align:center;"      |              Thickness
-!              colspan="1" rowspan="1" style="vertical-align:center;text-align:center;"      |              Puncture<br>Resistance
+!              colspan="1" rowspan="1" style="vertical-align:center;text-align:center;"      |              Puncture<br>Resistance (N)
 |-
 |              rowspan="1" style="text-align:left;"        |              Base Sheet (fibreglass) - Grade 3                ||           2.3          ||                2.2          ||           2.3          ||           2.3          ||           n/a         ||           n/a         ||           n/a         ||           n/a         ||                3.0          ||           n/a

@@ Line 22: / Line 22: @@
 ===Material Selection===
-See [[Flexible Membrane Roofing Systems: SBS|'''Accepted SBS Membranes''']] for '''''RoofStar Guaranteed''''' roof systems.  See also [[RoofStar Guarantee Standards for SBS Roof Systems#SBS4|'''Section 3''']] for special requirements concerning '''''Membrane Roof Systems'''''.
+See [[Flexible Membrane Roofing Systems: SBS|'''Accepted SBS Membranes''']] for '''''RoofStar Guaranteed''''' roof systems.  See also [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBS4|'''Section 3''']] for special requirements concerning '''''Membrane Roof Systems'''''.
 ===Application===

@@ Line 3: / Line 3: @@
 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.
-<p class="reference">NOTE: Fully nailed base sheet and torched cap sheet is considered a single-ply for Guarantee purposes.</p>
+NOTE: Fully nailed base sheet and torched cap sheet is considered a single-ply for Guarantee purposes.
 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.

@@ Line 22: / Line 22: @@
 ===Material Selection===
-See [[Flexible Membrane Roofing Systems: SBS|'''Accepted SBS Membranes''']] for '''''RoofStar Guaranteed''''' roof systems.  See also [[RoofStar Guarantee Standards for SBS Roof Systems#SBS4|'''Section 4''']] for special requirements concerning '''''Membrane Roof Systems'''''.
+See [[Flexible Membrane Roofing Systems: SBS|'''Accepted SBS Membranes''']] for '''''RoofStar Guaranteed''''' roof systems.  See also [[RoofStar Guarantee Standards for SBS Roof Systems#SBS4|'''Section 3''']] for special requirements concerning '''''Membrane Roof Systems'''''.
 ===Application===

@@ Line 7: / Line 7: @@
 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.
+Both the base sheet and cap sheet must be installed in a parallel direction (not at 90° to each other).
 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.
@@ Line 17: / Line 17: @@
 ====Membrane Lap Preparation====
 * 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.

← Older revision		Revision as of 15:47, 26 January 2017
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	===Application===		===Application===
−	~~====Wood Decks====~~
−
−	Direct torch (open flame) to wood surfaces is NOT permitted. All wood surfaces, decks, walls, blocking, cants, etc., MUST be protected from torch (open flame) by an acceptable separation or overlay material. Acceptable options include:
−
−	.1 '''RoofStar-accepted self-adhered and cold adhesive applied membranes''' - install over wood surfaces to manufacturers' product installation specifications. 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. Metal wall base flashing is optional with these application methods.
−
−	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. 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.
−
−	.2 '''Mechanically Attached Base Sheet''' - Cover wood surfaces with a minimum 40-lb 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.
−
−	.3 '''RoofStar-accepted asphalt core overlay boards (minimum thickness 4.5 mm (3/16") nominal) or insulation and insulation overlay boards specifically designed for torch applications''' - mechanically attach 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. Alternatively a mechanically attached minimum 25-lb asphalt coated fibreglass base sheet conforming to CAN / CSA – A123.16 – M88 (R1996), Type II or 30-lb non-perforated felt conforming to CSA A123.3-M may be used prior to installing asphalt core overlay boards on wood decks. Metal wall base flashing is optional with these application methods. Wood surfaces must be “dry mop” dry, no pooling or standing water permitted.
−
−	.4 '''Hot Asphalt Adhered''' - Install modified bituminous stripping (flashing) membranes to manufacturers’ installation specifications with conventional Type 3 or 4 oxidized asphalt or Type 3 or 4 SEBS modified asphalt. The asphalt temperature must conform to the membrane manufacturer's minimum application temperature and minimum +205°C (+400°F) as required by '''''RoofStar Guarantee Standards'''''. Metal base flashing is required on all vertical surfaces, walls, curbs, etc. when hot asphalt is used to adhere stripping (flashing) membranes.
−
	====Cold Weather====		====Cold Weather====

@@ Line 71: / Line 71: @@
 ==== {{hilite | Cold-Applied and Self-Adhered Membranes || 2018-January-25 }}  ====
 When the base sheet and cap sheet membrane {{hilite | assemblies are self-adhered or applied using a cold adhesive, the cap sheet membrane must be installed on a clean, dry base.  Therefore, barring extreme circumstances, and to comply with the manufacturer’s requirements, the base and cap sheets || 2018-January-25 }} must be installed and completed {{hilite | together on || 2018-January-25 }} the same work day. {{hilite | This standard does not apply where torch-applied cap membranes will be bonded to a self-adhering base membrane. || 2018-January-25 }}  Specifications and manufacturers’ written application instructions must be strictly followed. Phased installation of membranes is <u>not</u> permitted.
 <span class="principles">The '''''RoofStar Guarantee Program''''' accepts cold adhesive applied membranes installed over wood surfaces to manufacturers’ product installation specifications.</span>