Terrafoam High-Strength is a closed cell high compressive resistant polystyrene insulation board used in below grade application where large slab loads or lateral earth forces can compress typical insulation.

Terrafoam HS can be used in low temperature applications including commercial and industrial warehouse buildings, sidewalks, water main pipelines, highways, airport taxiways, bridge abutments and approach slabs, pools and reservoirs, underground parking structures, landscaping, skating arenas.

The Terrafoam HS30, 40, 60 and 100 designations indicate maximum compressive strength in pounds per square inch (PSI).

Readily available in-store:

Terrafoam HS40 and Terrafoam HS60.

Other compressive strengths are available by order with minimal lead time!