3” Styrofoam Brand sheets have an insulation value of R-15. They are commonly used as foundation insulation in cold climates where the extreme temperatures can cause foundation damage due to the freeze thaw cycles. Although typically used on the outside of the foundation, 3” STYROFOAM™ sheets can also be used on the inside providing additional protection from the cold outside temperature.


Additional Information
Application : Construction, Packaging, Arts & Crafts
Density : Various
Insulation Value : R-15