The Terrafoam(r) expanded polystyrene (EPS) insulation sheet provide effective long term thermal performance as an insulation component for wall, foundation, floor and roof assemblies. R-Value increases as temperature decreases, highest insulation effectiveness at low temperature extremes. It has excellent resistance to frost and thaw, low moisture absorption and will not degrade. It is a safe and hypoallergenic material that prevents mold growth.
R-3.7 @ 24°C (75°F) and R-4 @ 0°C (75°F)
Expanded polystyrene (EPS)
Insulation for interior and exterior system. Ideal for siding, roofing, foundations, under slabs, floors, walls and more.