4-inch Type 4 XPS Rigid Insulation 2-ft x 8-ft PSL Hanger Installed with screws

Installed with screws

This flexibility ensures the expected R-value is achieved and maintained

3 & 4 hour rated floor and wall assemblies

does not absorb moisture to maintain insulating value

high strength adhesive anchoring system

4-inch Type 4 XPS Rigid Insulation 2-ft x 8-ft PSL Hanger Installed with screwsDupont Styrofoam Type 4 XPS Rigid Insulation 4 inch x 2 ft x 8 ft. R Value of 20. Compressive strength of 30psi. 8 sheets per bundle. DuPont Styrofoam Brand SM30 Extruded Polystyrene Foam Insulation is ideal for use in foundations, floor slabs, attics and crawlspaces, where it resists water pickup a characteristic that allows it to maintain its high R value.