ENRGY 3® Foil Face and ISO 3™ Foil Face are rigid roof insulation boards composed of a closed cell polyisocyanurate foam core bonded in the foaming process to a tri-lam foil facer on both sides. ENRGY 3 Foil Face and ISO 3 Foil Face meet the physical requirements of ASTM C 1289, Type I, Class I and Federal Specifications HH-I-1972/Gen and HH-I-1972/2.
ENRGY 3 Foil Face and ISO 3 Foil Face provide high thermal value over metal, nailable, and non-nailable roof decks. ENRGY 3 Foil Face and ISO 3 Foil Face, with their low vapor permeability, are excellent choices for cold storage or metal building applications. The foil facers provide a suitable surface for mechanical attachment to a structural deck. ENRGY 3 Foil Face and ISO 3 Foil Face have each been classified by Underwriters Laboratories Inc. as an approved roof insulation component in many Class A ballasted and mechanically attached roof constructions and Roof/Ceiling hourly fire-rated assemblies.