Thermiser Max Insulated Roll Up Doors can save you up to $972 annually in energy costs, meaning the doors pay for themselves in just 2-4 years! The most energy-efficient insulated rolling door on the market today, with compliance certifications from IECC, ASHRAE, and LEED. The Thermiser Max door delivers a 94% decrease in air infiltration compared to standard products and can help you contribute up to 38 credits in five LEED categories. Top architects, building designers and owners all praise the Thermiser Max® Insulated Door for its energy efficient qualities and climate control options. Built with two layers of steel with foamed in insulation, not only is it an extremely energy efficient door, but one of the most secure insulated rolling doors constructed.