Firestone ISO 95+ polyiso insulation offers high-energy efficiency through the highest R-value ratings per inch versus other insulation materials. Compatible with all types of commercial roofing systems, the lightweight, easy-to-handle insulation is especially suited for direct application on FM approved and UL classified steel roof deck assemblies. Standard flat Firestone ISO 95+ Insulation is available in board sizes of 4’ x 4’ and 4’ x 8’ and in thicknesses from 1” to 4”.
Firestone ISO 300 Insulation offers a closed-cell polyiso foam core laminated to a polymer coated glass-fiber mat facer for outstanding moisture resistance and performance. ISO 300 Insulation was especially designed for cold-applied modified bitumen roofing systems, because it maximizes coverage rates of adhesives and achieves enhanced code approvals for some assemblies. ISO 300 Insulation can be used also with all other Firestone Roofing Systems.
Technical Database Quick Links