The Thermiser Max and Therm-Master exceed 2012 International Energy Conservation Code air-infiltration requirements by 34%. A propriety sealing system, thermally broken guide construction, and curtains with foamed-in-place insulation combine to achieve independently confirmed values of .66 cu. ft./min./sq. ft. Each insulated rolling steel door provides LEED post-industrial and pre-consumer recycled content and durable design credits. Retrofit kits are available for other brands as well.