2.5-inch Type 4 XPS Rigid Insulation 2-ft x 8-ft stone wool waterproof

waterproof

DuPont Tyvek HomeWrap delivers the optimum balance of properties for superior performance against the elements

Available Thickness: 3/8"

making it ideal for both interior and exterior use

2.5-inch Type 4 XPS Rigid Insulation 2-ft x 8-ft stone wool waterproofDupont Styrofoam Type 4 XPS Rigid Insulation 2. 5 inch x 2 ft x 8 ft. R Value of 12. Compressive strength of 30 psi. 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.