Questions and Answers for Owens Corning FOAMULAR 250 2 in. x 2 ft. x 8 ft. R-10 Tongue and Groove Rigid Foam Board Insulation Sheathing

A:  Hello Yuri, We would advise that you verify your Local Building Code to confirm the required/recommended R-value for your exterior walls. The Foamular would provide an R-value of 5 per inch. You may also consider the labor involved to cut the Foamular to fit between the cavity space. Thank you for your inquiry.

A:  Hello AndyinImlay, The difference in the Foamular 150 and Foamular 250 is the compressive strength which is measured in pounds per square inch. PSI is the weighted force that can be applied to a product prior to it breaking or being crushed. Foamular 150 has a PSI of 15 and Foamular 250 has a PSI of 25. Another popular product for hobbyist includes the Foamular Project Panel which has a PSI of 15. Due to your type of project the PSI tends not to be a huge factor, therefore either product would meet your needs. Thank you for the inquiry.

A:  Hello Cameron, Owens Corning recommends covering FOAMULAR® extruded polystyrene (XPS) rigid insulation as soon as possible following installation due to the potential for damage from ultra-violet light. If FOAMULAR® insulation is not covered immediately, it is recommended that it be covered within 60 days. Thank you for your inquiry!

A:  Hello JK36, Owens Corning Foamular products are combustible and must be covered by a 15 minute thermal barrier such as 1/2" drywall. We do not recommend leaving it exposed as a temporary ceiling. Thank you for your inquiry!

A:  Hello John, Owens Corning Foamular 250 can be used on a basement interior concrete wall. You will want to ensure any moisture issues are corrected prior to installation. Thank you for your inquiry!

A:  Hello Nate, to properly answer you question we will need some additional information. Please contact Owens Corning at 1-800-Get-Pink (438-7465). Thank you for your inquiry!

A:  Hello Jack, Owens Corning Foamular 250 can be used in some under slab applications. You will need to verify the compressive strength needed for your application. The Foamular 250 has a compressive strength of 25 psi. Thank you for your inquiry!

A:  Hello Josef, the weight of one board of Foamular 250 2"x48"x96" is approximately 8.32 lbs. Thank you for your inquiry!