A Type IV extruded polystyrene foam insulation with tongue and groove edges.
For a wide range of commercial and residential applications
Contains an average of 20% pre-consumer recycled content certified by UL Environment Inc.
Tongue and groove edges help boards fit snugly against one another
Tongue and groove on all four sides of 2' x 8' boards 1" thick or less and on the long edges of all other boards
Lightweight Moisture resistance
Minimum compressive strength of 25 psi