Abstract: A method of manufacturing an exterior facing layer for vinyl siding, including molding a pattern of depressions and protuberances into a sheet of a thermoplastic polymer simulating cedar shake shingles, and concurrently molding an extension to the molded plank incorporating an integrally molded hinge connection. Thereafter, the extension is folded over the plank edge in a mechanical bending sequence and bonded thereto. In another embodiment of the invention, a foam filler material may be poured into the molded facing layer cavities and a metallic foil backing bonded thereto so as to form a laminar siding construction.
Abstract: An insulating vinyl siding adapted to be applied as siding units for home installation and assembled with other similar units. The siding is composed of a preformed thermoplastic polymer facing, a thermal barrier formed by a foam filler, and a metallic foil backing.