THERMOFOAM® Technology increases a homes' comfort and energy efficiency through the reduction of heat loss through the floor. THERMOFOAM® 2′ x 8′ (0.61 m x 2.4 m) insulation panels differ from conventional insulation products by featuring a unique interlocking design providing easier installation and airtightness. ENSURE THE HOME YOU BUILD SAVES THE MAXIMUM AMOUNT OF ENERGY THERMOFOAM® is available in thicknesses of 1 1/4″ (32 mm), 1 7/8″ in (48 mm) and 2 1/2″ (64 mm) and offers R-values up to R-10.6 with three different compressive strengths to better meet the insulation requirements of all types of construction.