Rigid Foam vs Fiberglass Insulation Major Differences Rigid Foam Insulation Rigid foam insulation consists of panels sold in 4by8foot sheets in a variety of thicknesses from 1/4 to 2 inches It is also sold in large bundled panels, joined at the ends accordionstyle for use as an exterior sheathing materialIn Climate Zones 2 and 3, you'll need R38 of rigid foam (about 10 or 11 inches of EPS, 8 inches of XPS, or 7 inches of polyiso);Pourinplace insulation Spray insulation polyol blends Compatible with polyester and polyether polyol formulations, the surfactants simplify the mixing of polyols and blowing agents, maintain the blowing agents in the emulsion or solution, and provide excellent emulsion stability
Bsi 116 Interior Spray Foam Building Science Corporation