Large-panel doors’ sweeping views don’t always translate into energy savings. A wood interior facing on a thermally isolated aluminum frame reduces thermal conductivity, increasing the insulating value of Panda’s TS.13 large panel lift-and-slide door without sacrificing aesthetics. A glass-fiber-reinforced polyamide iso-bar strengthens the unit while the wood prevents thermal bridging. The door is available in custom colors with three finishes. panda-windows.com