Rmax Nailable Base-3 is an energy-efficient thermal insulation board composed of an environmentally sound closed-cell polyisocyanurate (polyiso) foam core bonded to a nailing panel on the top surface and a glass fiber/organic mat facer on the bottom surface. The standard nailing surface of Nailable Base-3 is 7/16 OSB (APA rated). Nailable Base-3 is approved for use in new roof constructions over steel, wood, non-combustible and certain types of nailable roof decks. Rmax Nailable Base-3 is designed for use with concrete, slate or clay roofing tiles, as well as, wood shakes, asphalt shingles and metal panel roof systems.

Features:

• Concrete roofing tiles
• Wood shakes
• Metal panel roofing
• Slate roofing tiles
• Clay roofing tiles
• Asphalt shingles (limited)