Asphalt roofing products surfaced with naturally colored...

Details Asphalt roofing products surfaced with naturally colored... Asphalt roofing products surfaced with naturally colored...

E - Fixed Constructions

04

D

E04D 1/22 (2006.01) E04D 1/00 (2006.01) E04D 1/12 (2006.01) E04D 5/02 (2006.01) E04D 5/12 (2006.01)

Patent

CA 2253921

A roofing product includes a base sheet (10), a coating of an adhesive composition (52) on the base sheet, and a surface layer (44) of granules adhered to the coating (52), the roofing product including a tab portion (38) which is normally exposed on a roof, where the surface layer of the tab portion (38) includes naturally colored rock granules alone or in combinaison with artificially colored rock granules. In another embodiment, the surface layer of the tab portion (68) includes a blend of at least there different kinds of granules selected, at least one of which is naturally colored rock granules. Preferably the granules have a particle size from about 2.0 mm to about 0.3 mm.

Le produit de couverture de la présente invention comporte une feuille de base (10), un revêtement (52) constitué d'une composition adhésive recouvrant la feuille de base et une couche superficielle (44) de granulés collés audit revêtement (52). Ledit produit de couverture comporte un volet (38) qui est normalement exposé aux intempéries sur le toit et dont la couche superficielle comporte des granulés de roche naturellement colorés éventuellement combinés à des granulés de roche colorés artificiellement. Dans une autre réalisation, la couche superficielle du volet (68) comporte un mélange d'au moins trois types différents de granulés sélectionnés, l'un au moins des composants du mélange étant constitué de granulés de roche colorés naturellement. De préférence, les granulés utilisés possèdent une grosseur particulaire comprise entre environ 2,0 mm et environ 0,3 mm.

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