Dow Styrofoam Perimate, 2 1/8"x2'x8'
1_0700254 MFG #: 101347
Styrofoam Perimate Insulation is a Type IV extruded polystyrene foam insulation with patented dovetail grooves on one face. On the long edges it has shiplap edges. Styrofoam Perimate Insulation is for both commercial and residential applications. It is used on exterior foundation walls to assist water drainage away from the foundation and is suitable for use in pervious, semi-pervious, and practically impervious soils. It is moisture resistant, durable, and lightweight.