E - Fixed Constructions – 04 – D
Patent
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.
Jacobs Gregory F.
Kalkanoglu Husnu M.
Kim Joong Y.
Mackinnon Thomas K.
Snyder Richard Allan
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Certainteed Corporation
LandOfFree
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