PremiumCoat System over Recovery Boards

 

 

 

 

 

 

 

 

 

 

 

When do I use Recovery Boards/Rigid Insulation?

A recovery board (also referred to as "rigid insulation") is often used when the existing roof substrate is severely "alligatored" (see asphaltic roof substrate page) or when the roof lacks positive drainage.

Recovery boards are also used when a tar & gravel roof is present.  After removing the loose gravel, recovery boards are installed to create a smooth surface to which the PremiumCoat System can be applied.

 

Items needed:

					PremiumCoat FoundationCoat
					PremiumCoat Fabric & Brushes (multiple sizes)
					PremiumCoat FinishCoat

Acceptable Recovery Boards:
(always check with local building codes and Hydro-Stop Specifications when installing a recovery board in your area)

• ISO (polyisocyanurate) - 1.5" minimum thickness
• EPS (expanded polystyrene) - 1.5" minimum thickness, 
                                           minimum 1.5 lb/ft³ density
• Tapered ISO or EPS - 1.5" minimum thickness, 
                                           minimum 1.5 lb/ft³ density
• Plywood (non-treated) - 3/4 inch minimum thickness 
                                           tongue and groove exterior B&C grade
• Densdeck / Securock - 1/2 inch thickness

PremiumCoat is a reinforced acrylic roofing SYSTEM.  As an acrylic, it remains permanently flexible. Since PremiumCoat is fluid-applied, it is directly attached to the roof: every nook and cranny. No need for flashing accesories - PremiumCoat fully encapsulates all roof details, making them part of the seamless roof system.

 

 

 

 

 How do I apply the PremiumCoat System when using a Recovery Board?
**Note: always refer to the Hydro-Stop Specification for application instructions.