The Amarr 2731 is a durable, energy-efficient commercial door designed to perform in demanding environments. With an R-value of 6.7, it features a robust four-step insulation system that includes tongue and groove construction, polystyrene insulation, weather-stripping, and a thermal break—providing reliable protection from the elements. The eco-friendly insulation is free of CFCs, HFCs, and HCFCs, and is chemically bonded to the steel panels to increase structural integrity and energy efficiency.