4-inch Type 4 XPS Rigid Insulation 2-ft x 8-ft PSL Hanger Self-sealing when penetrated with self-tapping

Self-sealing when penetrated with self-tapping screws

to handle in 1 hour

high strength adhesive anchoring system

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

Fire-resistant due to its high melting temperature

4-inch Type 4 XPS Rigid Insulation 2-ft x 8-ft PSL Hanger Self-sealing when penetrated with self-tappingDupont 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.