PROCESS OF SIMULTANEOUSLY MOLDING A PLURALITY OF COMPOSITE SHINGLES
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 shingl e material, such that a weatherable capstock material is pro...
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Format: | Patent |
Sprache: | eng ; fre |
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Zusammenfassung: | 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 shingl e material, such that a weatherable capstock material is provided outside a core materia l, 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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