Template:BUR Membranes - Revision history

James Klassen: /* Self-Adhering */

2017-01-25T21:35:09Z

‎Self-Adhering

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

2017-01-25T21:34:52Z

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

James Klassen: /* Cold-applied (Adhered) Membranes */

2017-01-25T21:32:22Z

‎Cold-applied (Adhered) Membranes

James Klassen: /* Material Selection */

2016-11-10T22:48:55Z

‎Material Selection

James Klassen: /* Mechanically Attached */

2016-11-10T22:43:34Z

‎Mechanically Attached

James Klassen: /* Wood Decks */

2016-11-10T22:09:41Z

‎Wood Decks

James Klassen: /* Membrane Lap Preparation */

2016-11-10T19:21:43Z

‎Membrane Lap Preparation

James Klassen: /* Bitumen (Asphalt) Requirements */

2016-11-10T19:19:29Z

‎Bitumen (Asphalt) Requirements

James Klassen: /* Bitumen (Asphalt) Requirements */

2016-11-10T19:19:02Z

‎Bitumen (Asphalt) Requirements

James Klassen: /* Bitumen (Asphalt) Requirements */

2016-11-10T19:18:46Z

‎Bitumen (Asphalt) Requirements

@@ Line 103: / Line 103: @@
 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.
 <div id=SBSCOLD></div>
 ==== {{hilite | Cold-Applied and Self-Adhered Membranes || 2018-January-25 }}  ====

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 ==== {{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>

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 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.
-==== Cold-applied (Adhered) Membranes ====
+==== {{hilite | Cold-Applied and Self-Adhered Membranes || 2018-January-25 }}  ====
-Base and cap sheets of all cold adhesive-applied roof systems must be installed in the same work day.  Phased installation of base and cap sheet membranes is not permitted.
+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>

@@ Line 22: / Line 22: @@
 ===Material Selection===
-See [[Flexible Membrane Roofing Systems: BUR|'''Accepted BUR Membrane Components and Systems''']] for '''''RoofStar Guaranteed''''' roof systems.
+See [[Flexible Membrane Roofing Systems: BUR|'''Accepted BUR Membrane Components and Systems''']] for '''''RoofStar Guaranteed''''' roof systems. See also [[RoofStar Guarantee Standards for BUR Roof Systems#BUR4|'''Section 4''']] for special requirements concerning '''''Membrane Roof Systems'''''.
 ====Bitumen (Asphalt) Requirements====

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 On all adhered flexible membrane roof slopes that exceed 1:24 (½" 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 Standard test method (latest edition) for the dynamic wind uplift resistance of mechanically attached membrane roofing systems.
+When applicable, all mechanically fastened flexible membrane systems installed under '''''RoofStar Guarantee''''' shall conform to the CSA A123.21 Standard test method (latest edition) for the dynamic wind uplift resistance of mechanically attached membrane roofing systems.
 '''Mechanically Attached Base Sheet'''

@@ Line 59: / Line 59: @@
 ===Application===
 ====Wood Decks====
-Direct torch (open flame) to wood surfaces is NOT permitted (ref. to 'mop/torch' BUR membrane systems). 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:
+Direct torch (open flame) to wood surfaces is NOT permitted (i.e., when applying 'mop/torch' BUR membrane systems). 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.

← Older revision		Revision as of 19:21, 10 November 2016
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	====Membrane Lap Preparation====		====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.

	===Material Selection===		===Material Selection===

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 <big>For hot asphalt adhered modified bitumen roofing membranes</big>
-:.1 It is essential that the asphalt temperature be <b>no lower</b> than 205&deg;C (400&deg;F) on the rooftop, and that maximum mopping distance from the roll not exceed 1 m (3'). A wave of liquid asphalt must be visible in front of the roll as it is being applied.
+:# It is essential that the asphalt temperature be <b>no lower</b> than 205&deg;C (400&deg;F) on the rooftop, and that maximum mopping distance from the roll not exceed 1 m (3'). A wave of liquid asphalt must be visible in front of the roll as it is being applied.
-:.2 For all applications <b>other than</b> protected membrane applications, the use of Type 3 asphalt is mandatory, unless the membrane manufacturer specifies a higher grade.
+:# For all applications <b>other than</b> protected membrane applications, the use of Type 3 asphalt is mandatory, unless the membrane manufacturer specifies a higher grade.
-:.3 For protected and modified protected membrane systems, use Type 2 or Type 3 asphalt for slopes up to 1:24 (1/2" in 12"). For slopes of 1:24 (1/2" in 12") to 1:4 (3" in 12"), use Type 3 asphalt only, unless the membrane manufacturer specifies a higher grade.
+:# For protected and modified protected membrane systems, use Type 2 or Type 3 asphalt for slopes up to 1:24 (1/2" in 12"). For slopes of 1:24 (1/2" in 12") to 1:4 (3" in 12"), use Type 3 asphalt only, unless the membrane manufacturer specifies a higher grade.
 ====Gravel====