Thermadapt™ Thermally Adaptive siding, shingles and roofing function by actively changing their shape in response to their environment. When hot and exposed to sunshine, the panels curve out and away from the building structure. This shades the building, acting like an extremely lightweight, very effective second skin. In mild and cool weather, the Thermadapt™ panels lie flat, transferring thermal energy to the underlying subststructure. In cold weather, the panels form concave arches, sealing pocets of dead air against the building, forming a highly insulative barrier.