Products / FTR-Value Glass Facer Polyiso Insulation

FTR-Value Glass Facer is a polyisocyanurate roof insulation board with a closed-cell foam core bonded to coated glass facers on both sides, made to ASTM C1289 Type II, Class 2, Grade 2 (20 psi) or Grade 3 (25 psi). It comes in 4 by 4 foot and 4 by 8 foot boards from 1.0 to 4.0 inches thick for single, multi-layer and tapered installations, with a long-term thermal resistance of about 5.7 per inch. The data sheet states UL and FM Global classify it as a component of FiberTite roofing systems as Class A (UL 790) and Class 1A (FM 4470), and cites ICC-ES report ESR-1456.