TECHNOLOGY FOCUS - INDUSTRIAL STANDARDS - Preferred Components: The matrix polymer has greater than or equal to 85% transparency measured according to ASTM D1003-00.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The inorganic filler has a particle size of less than or equal to 10 micrometers. The filler comprises magnesium hydroxide, glass (both preferred), silica, quartz, ceramic particles, gypsum, feldspar, calcium silicate, barium metaborate, mica, clays, aluminum trihydroxide, Fuller's earth, calcium hydroxide, pyrophyllite, talc, and/or zinc borate. The filler is present in an amount of 5-80 wt.%.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The assembly further comprises an insulation layer on at least one side of the light absorbing layer. The glazing layer comprises a multiwall sheet comprising a first wall (34), a second wall, and ribs disposed the first and second walls. The first wall has a first wall first surface (40) and a second wall second surface, and the second wall has a second wall first surface and a second wall second surface. An air gap is present between the thermo-responsive layer and the light absorbing layer. The thermo-responsive layer is attached to the second wall second surface, and further comprises a plasticizer. Preferred Method: The method further comprises co-extruding the glazing layer and the thermo-responsive layer or laminating the thermo-responsive layer to a surface of the glazing layer, and co-extruding the light absorbing layer and the thermo-responsive layer or laminating the thermo-responsive layer to a surface of the light absorbing layer.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The plasticizer comprises benzoate esters, aliphatic esters, and/or aryl esters of phosphates.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The matrix polymer has a glass transition temperature of 25-100 degrees C. The matrix polymer has a refractive index of 1.4-1.75. The refractive indices of the inorganic filler and the matrix polymer differ by less than or equal to 0.01 at 25 degrees C. The matrix polymer comprises poly(methyl methacrylate), poly(styrene-co-acrylonitrile) (both preferred), polyesters, polycarbonates, polystyrene, poly(ethyl methacrylate), poly(styrene-co-methyl methacrylate), poly(methyl methacrylate-co-styrene-co-acrylonitrile), copolymers of styrene, acrylonitrile, (meth)acrylic acids, and/or (meth)acrylates. The thermo-responsive layer has a thickness of 25-2500 mu m, and greater than or equal to 10% reflection when exposed to temperatures greater than a glass transition temperature of the matrix polymer.