Rigid Insulation board R10 tongue and groove long sides with shiplap on ends. Sold by the bundle. Thermofoam 20, Thermofoam 30 and Thermofoam 40 20/30/40 PSI



Suitablе for under basement slabs, garage floors, basement walls for continuous insulation, Sidewalks, driveways, and exterior continuous insulation for above grade walls.
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