Roofing system and roofing shingles

E - Fixed Constructions – 04 – D

Patent

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Details

E04D 1/26 (2006.01) E04D 1/36 (2006.01) E04D 5/12 (2006.01) E04D 12/00 (2006.01)

Patent

CA 2603714

A roofing system having a multiplicity of courses of roofing shingles and interply material comprising at least one course of interply material overlapping at least about ten percent of a first course of shingles and a second course of shingles overlapping at least a portion of the interply material and the first course of shingles. More than about 40% of the first course of shingles is exposed after installation. The roofing system has a class A fire resistant rating. Roofing shingles having particular utility in the roofing system of the present invention are also disclosed. In preferred embodiments the shingles have an exposure width of at least about 60% of the shingle, more preferably at least about 64% of the width of the shingle.

Un système de toiture pourvu de plusieurs rangées de bardeaux et de matériel de sous-couche comportant au moins une rangée de matériel de sous-couche chevauchant au moins dix pour cent d'une première rangée de bardeaux et une deuxième rangée de bardeaux chevauchant au moins une partie du matériel de sous-couche et la première rangée de bardeaux. Plus de 40 % de la première rangée de bardeaux est exposée après installation. Le système de toiture détient une cote de résistance au feu de classe A. La présente invention porte également sur un système de toiture pourvu de bardeaux à usage spécifique. Dans les modes de réalisations préférés, la largeur d'exposition des bardeaux est d'au moins 60 % de leur surface et préférablement d'au moins 64 %.

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