Shingle having ribs and cavity on its underside

Details Shingle having ribs and cavity on its underside Shingle having ribs and cavity on its underside

E - Fixed Constructions

04

D

E04D 1/20 (2006.01) E04D 1/08 (2006.01) E04D 1/26 (2006.01)

Patent

CA 2219026

A roofing shingle (10, 56, 58, 60) includes organic, resinous material and an inorganic filler material, the shingle (10, 56, 58, 60) having a top surface (12), two side surfaces (14), an upper end (16), and a lower or butt end (18), defining a cavity (40) on the underside of the shingle (10, 56, 58, 60), with ribs (44, 46) positioned within the cavity (40). When applied to a roof, the shingle (10, 56, 58, 60) has the appearance of wooden shake shingle and provides a Class A fire barrier when tested according to ASTM test E108-93 for flame spread, burning brand, and intermittent flame.

Bardeau de toiture (10, 56, 58, 60) renfermant une matière organique résineuse et un matériau inorganique de charge. Ce bardeau (10, 56, 58, 60) présente une face supérieure (12), deux faces latérales (14), une extrémité supérieure (16), et une extrémité inférieure (18) définissant un évidement (40) sur la face inférieure de ce bardeau (10, 56, 58, 60), avec des nervures (44, 46) à l'intérieur de cet évidement (40). Une fois posé sur la toiture, ce bardeau (10, 56, 58, 60) a l'aspect d'un bardeau de fente en bois et présente des caractéristiques de résistance au feu de classe A lorsqu'il est soumis à l'essai E108-93 de l'ASTM en ce qui concerne la propagation de la flamme, la résistance au brandon et les flammes intermittantes.

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