Products / Atlas ACFoam Nail Base

Nailable roof insulation: a 4 ft x 8 ft non-structural composite panel of ACFoam-II or ACFoam-III polyiso bonded to minimum 7/16 inch OSB or minimum 19/32 inch CDX plywood on the top face. Made to order in nominal thicknesses of 1.5 to 4.5 inches, giving LTTR values from 6.3 to 24.2, at 20 or 25 psi, with a non-halogenated formulation also offered. Manufactured to ASTM C1289 Type V. Approved over wood and steel decks in new and re-roof work under asphalt shingles, standing seam metal, tile and slate; not for vertical or adhered applications. Atlas backs it with a Limited 20-Year Thermal Warranty, a limited warranty on LTTR value.