Insulperm Insulation Board

Insulperm is a patented, premium-quality nominal 1 pcf- (16 kg/m³) density expanded polystyrene insulation board. It serves as the primary insulator of Siplast Lightweight Insulating Concrete Systems and, when used in a stair-stepped configuration, is the base for the system’s slope-to-drain capability. Configured to give the system composite strength and ensure release of moisture vapor, Insulperm is a lightweight expanded polystyrene insulation board that adds little dead load to the assembly.

• Supplied in two-foot by four-foot (.61 m x 1.22 m) boards in thicknesses from one-inch (25 mm).
• Designs used with concrete substrate construction may allow unlimited thickness of Insulperm Insulation Board.