The tongue and groove edge treatment of STYROFOAM™ Brand Insulation - Tongue and Groove helps boards fit snugly against one another, for a smooth, even surface that aids in blocking air infiltration.

STYROFOAM™ Brand Tongue and Groove Insulation features tongue and groove edges on all four sides of 2' x 8' boards 1" thick or less and on the long edges of all other boards. The lightweight, moisture-resistant and thermally efficient Type IV extruded polystyrene foam insulation is suited for a wide range of residential and commercial construction applications.

Building Code Compliance

Complies with ASTM C578 Type IV. Meets IBC/IRC requirements for foam plastic insulation. See ESR-2142, BOCA-ES RR 21-02, ICBO-ES ER-2257. UL Classified, see Classification Certificate D369. Calif. Std. Reg. # CA T064. Florida Building Code FL 3835.

STYROFOAM™ Brand Tongue and Groove Insulation CAD Details

U.S. Residential

U.S. Commercial