Deck Overlays

Gypsum and Composite Overlay Boards

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	Density: (kg/cu. m)	Compressive Strength: kPa (psi)	Thermal Resistance: RSI (R)
Georgia-Pacific Canada Ltd.	Densdeck Roofguard
	Densdeck Roofguard Prime
USG SecureRock	Gypsum Fibre Roof Board
	Glass-Mat Roof Board

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