Difference between revisions of "Roofs - APP Membranes"

Latest revision as of 18:04, 17 June 2024

Division C - Accepted Materials

Roofs: APP Membranes

Accepted Materials for a RoofStar Guarantee The tables and products shown below provide basic material data and links to more information about the materials, including manufacturers' published Technical Data sheets, but this information is not intended for use as a comparison of material performance or quality. It is the sole responsibility 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 RoofStar Guarantee Program (RCABC Guarantee Corp., or RGC) for use in a roof or grade-level waterproofing system that will qualify for a RoofStar Guarantee. The acceptance of these materials by the RGC (RoofStar Guarantee Program) 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, with the exception of BUR membranes for which the reader will find RoofStar Guarantee Program guidelines on traditional built-up roofing systems (BUR) incorporating organic and glass felt primary membranes.

Atactic polypropylene (APP) polymer modifiers are by-products of the polymerization of propylene gas into isotactic polypropylene (used for injection molding and extrusion). APP has a lower melting point and is more compatible with asphalt than isotactic polypropylene.

Bitumens modified with APP can display improved physical and mechanical properties. The improved properties are only possible if the APP is finely dispersed throughout the bitumen to avoid separation during manufacture and service.

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

increased softening point
improved ultraviolet radiation resistance
improved low temperature flexibility

APP-Modified Base Membranes

Click on a manufacturer's name to see the full list of their products accepted for use in the RoofStar Guarantee Program
Manufacturer	Product Name	System Test Type (Wind)	Nominal Membrane Thickness (mm)	Approximate Weight (Kg/m²)	Reinforcement Material	Reinforcement Material Weight (g/m2)	Application
IKO Industries Ltd.	Armourplast Classic	‒	-	‒	‒	-	-
Polyglass USA, Inc.	Polyflex APP (Plastomeric) Membrane	‒	4.00	4.95	Non-woven polyester	Not stated	Heat welded Mechanically fastened

APP-Modified Cap Membranes

Click on a manufacturer's name to see the full list of their products accepted for use in the RoofStar Guarantee Program
Manufacturer	Product Name	System Test Type (Wind)	Nominal Membrane Thickness (mm)	Approximate Weight (Kg/m²)	Reinforcement Material	Reinforcement Material Weight (g/m2)	Application
IKO Industries Ltd.	Armourplast Granular	‒	4.00	4.32	Non-woven polyester	‒	Heat-welded
Polyglass USA, Inc.	Polyflex G APP (Plastomeric) Granulated Cap Sheet	‒	4.50	5.54	Non-woven polyester	‒	Heat-welded

Accepted Materials

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+<big><big>Division C - Accepted Materials</big></big>
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+<big><big><big><big><big>Roofs: APP Membranes</big></big></big></big></big>
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-| style="background-color: #ffffcc; column-width:100%" | <big>ACCEPTED PRODUCTS AND SYSTEMS FOR ROOFSTAR FIVE (5) YEAR, ROOFSTAR TEN (10) YEAR, AND ROOFSTAR FIVE (5) YEAR WATERPROOFING GUARANTEES.</big>
+| style="background-color: #ffffcc; column-width:100%" | {{Template:Accepted Materials Page Header}}
+|}
-The table or tables shown below provide basic material data and links to more information about the materials, including manufacturers' published Technical Data sheets, but this information 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.
+:Atactic polypropylene (APP) polymer modifiers are by-products of the polymerization of propylene gas into isotactic polypropylene (used for injection molding and extrusion). APP has a lower melting point and is more compatible with asphalt than isotactic polypropylene.
-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.
+:Bitumens modified with APP can display improved physical and mechanical properties. The improved properties are only possible if the APP is finely dispersed throughout the bitumen to avoid separation during manufacture and service.
-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.
+:APP modification of bitumens can impart the following changes in properties:
-|}
+:* increased softening point
+:* improved ultraviolet radiation resistance
+:* improved low temperature flexibility
+:<big>APP-Modified Base Membranes</big>
+{{Template:Materials - APP Base Membranes}}
-{{Template:Materials - APP Membranes}}
+:<big>APP-Modified Cap Membranes</big>
+{{Template:Materials - APP Cap Membranes}}
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