Process of simultaneously molding a plurality of composite...

Details Process of simultaneously molding a plurality of composite... Process of simultaneously molding a plurality of composite...

E - Fixed Constructions

04

D

E04D 1/22 (2006.01) B29C 49/00 (2006.01) B32B 3/26 (2006.01) E04D 1/20 (2006.01) E04D 1/28 (2006.01)

Patent

CA 2490373

A process of simultaneously molding either a plurality of composite shingles or double walled shingles or other substantially planar exterior building products is provided, each being comprised of two or more layers of thermoplastic shingle material, such that a weatherable capstock material is provided outside a core material, in the form of a composite parison that is then blow molded in a hollow mold, to produce novel shingles according to the process. Ventilation and/or insulation can be provided to a hollow interior between spaced apart walls of a double walled shingle.

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