| abstract |
An upper layer exposed to the surrounding environment and a lower layer in contact with the roof structure, the upper layer comprising at least two layers of a polymeric material comprising a special effect pigment with a sufficient amount of metal-like appearance to give a metal-like appearance Providing materials and methods for the provided roofing materials. As the polymer material, a thermoplastic olefin resin, a vinyl chloride resin, or other materials can be used. In addition, the polymeric material includes UV stabilizers and / or flame retardants, smoke suppressants or other fillers. [Selection figure] None |