Kingspan Insulation 4-ft x 8-ft Unfaced Foam Board Insulation

For use as general purpose insulation for roofing, wall, and foundation applications requiring a minimum compressive strength of 25 psi. With its closed-cell structure, it is the most capable foam insulation for direct to ground contact of commonly available insulations. XPS insulation can be used as continuous insulation on interior or exterior walls to help increase the R-value of the walls, and improve the energy efficiency of the entire home or building.