Accepted Materials - Hot-applied Rubberized Asphalt Roof Assemblies

To view materials in any section listed below, click on the EXPAND button located at the right hand side of this page

1 Air and Vapour Control

The RCABC does not list air or vapour barriers in the Accepted Materials section of this Manual, as their performance is not guaranteed by the RoofStar Guarantee Program. For more about air and vapour barriers and specific requirements for the RoofStar Guarantee Program, select any of the Low Slope Membrane Roof Systems. This cross-reference is listed for information only.

2 Deck Overlay Board and Wall Sheathing

Deck overlays are materials installed over decks to render the surface suitable for waterproofing materials. Click on a manufacturer's name to see the full list of their products accepted for use in the RoofStar Guarantee Program

* Use treated plywood over concrete deck surfaces
Manufacturer	Product Name	Product Type	Thickness mm (in.)	Weight (lb/square foot)	Comp. Strength (psi, nominal)	Acceptable Application
	Plywood	Plywood overlay	12.7 (1/2) min.	Variable	-	All decks*
Georgia-Pacific Canada Ltd.	DensDeck Roofboard	Moisture-resistant gypsum core board	6.4 (1/4)	1.100	500-900	All decks
Georgia-Pacific Canada Ltd.	DensDeck Roofboard	Moisture-resistant gypsum core board	12.7 (1/2)	1.950	500-900	All decks
Georgia-Pacific Canada Ltd.	DensDeck Roofboard	Moisture-resistant gypsum core board	15.9 (5/8)	2.500	500-900	All decks
Georgia-Pacific Canada Ltd.	DensDeck® Prime with EONIC Roof Board	Moisture-resistant gypsum core board	6.4 (1/4)	1.150	900	All decks
Georgia-Pacific Canada Ltd.	DensDeck® Prime with EONIC Roof Board	Moisture-resistant gypsum core board	12.7 (1/2)	1.975	900	All decks
Georgia-Pacific Canada Ltd.	DensDeck® Prime with EONIC Roof Board	Moisture-resistant gypsum core board	15.9 (5/8)	2.550	900	All decks
USG (CGC) SecureRock	Securerock Glass-Mat Roof Board	Moisture-resistant gypsum core board	6.4 (1/4)	1.200	700-1000	All decks
USG (CGC) SecureRock	Securerock Glass-Mat Roof Board	Moisture-resistant gypsum core board	12.7 (1/2)	2.000	700-1000	All decks
USG (CGC) SecureRock	Securerock Glass-Mat Roof Board	Moisture-resistant gypsum core board	15.9 (5/8)	2.700	700-1000	All decks
USG (CGC) SecureRock	Securerock Gypsum Fibre Roof Board	Moisture-resistant gypsum core board	6.4 (1/4)	1.570	1800	All decks
USG (CGC) SecureRock	Securerock Gypsum Fibre Roof Board	Moisture-resistant gypsum core board	9.5 (3/8)	1.960	1800	All decks
USG (CGC) SecureRock	Securerock Gypsum Fibre Roof Board	Moisture-resistant gypsum core board	12.7 (1/2)	2.760	1800	All decks
USG (CGC) SecureRock	Securerock Gypsum Fibre Roof Board	Moisture-resistant gypsum core board	15.9 (5/8)	3.200	1800	All decks
USG (CGC) SecureRock	Securerock Coated Ultralight Glass Mat Roof Board*	6.4 (1/4)	1.200	700-1000	700-1000	All decks
USG (CGC) SecureRock	Securerock Coated Ultralight Glass Mat Roof Board*	12.7 (1/2)	1.700	700-1000	700-1000	All decks
USG (CGC) SecureRock	Securerock Coated Ultralight Glass Mat Roof Board*	15.9 (5/8)	2.200	700-1000	700-1000	All decks
USG (CGC) SecureRock	Securerock Ultralight Glass Mat Roof Board	Moisture-resistant gypsum core board	6.4 (1/4)	1.200	700-1000	All decks
USG (CGC) SecureRock	Securerock Ultralight Glass Mat Roof Board	Moisture-resistant gypsum core board	12.7 (1/2)	1.700	700-1000	All decks
USG (CGC) SecureRock	Securerock Ultralight Glass Mat Roof Board	Moisture-resistant gypsum core board	15.9 (5/8)	2.200	700-1000	All decks