Shingle with improved blow-off resistance
AssigneeCertainTeed Corporation
InventorsHusnu M. Kalkanoglu, Robert L. Jenkins, Stephen A. Koch
Life of this patent
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Abstract
A wind-resistant shingle and a method of making it is provided in which the rear surface of the shingle is provided with an attached reinforcement layer, which resists upwardly wind-applied bending torque when the shingle is installed on a roof, such that the failure of the shingle when it is bent beyond its elastic limit, is resisted until the shingle has absorbed a high percentage of applied torque.
Claims20
A wind-resistant shingle having front and rear surfaces, a width defined by upper and lower edges and a length defined by right and left edges, comprising:
- (a) a base layer of mat having front and rear surfaces;
- (b) a coating of asphaltic material on both front and rear surfaces of the mat;
- (c) coatings of granular material on the asphaltic material on both front and rear surfaces which together with said base layer of mat and coatings of asphaltic material comprise a first thickness layer;
- (d) a longitudinal fastening zone between right and left shingle edges, generally intermediate said upper and lower edges;
- (e) a generally longitudinal wind-resistant second thickness layer of a substantially thinner dimension than said first thickness layer adhered to said lower surface of said shingle, against the outer surface of granular material on the surface thereof, and extending at least substantially between right and left edges of the shingle;
- (f) said wind-resistant layer extending at least partially lower than the fastening zone, toward the lower edge of the shingle;
- and
- (g) said wind-resistant layer comprising a plurality of crossing strands of reinforcing material.
The method of making a wind-resistant shingle having front and rear surfaces, a width defined by upper and lower edges and a length defined by right and left edges, comprising:
- (a) providing a base layer of mat having front and rear surfaces;
- (b) providing a coating of asphaltic material on both front and rear surfaces of the mat;
- (c) providing coatings of granular material on the asphaltic material on both front and rear surfaces;
- (d) providing a longitudinal fastening zone between right and left shingle edges, generally intermediate said upper and lower shingle edges;
- (e) providing a generally longitudinal wind-resistant layer adhered to the lower surface of the shingle, against the outer surface of the granular material on the surface thereof, extending at least substantially between right and left edges of the shingle;
- (f) having the wind-resistant layer extend at least partially lower than the fastening zone, toward the lower edge of the shingle;
- and
- (g) providing for the wind-resistant layer, a plurality of crossing strands of reinforcing material.
A wind-resistant shingle having front and rear surfaces, a width defined by upper and lower edges and a length defined by right and left edges, comprising:
- (a) a base layer of mat having front and rear surfaces;
- (b) a coating of asphaltic material on both front and rear surfaces of the mat;
- (c) coatings of granular material on the asphaltic material on both front and rear surfaces which, together with said base layer of mat and coatings of asphaltic material comprise a first thickness layer;
- (d) a longitudinal fastening zone between right and left shingle edges, generally intermediate said upper and lower edges;
- (e) a generally longitudinal wind-resistant second thickness layer of a substantially thinner dimension than said first thickness layer adhered to said lower surface of said shingle, against the outer surface of granular material on the surface thereof, and extending at least substantially between right and left edges of the shingle;
- (f) said wind-resistant layer extending at least partially lower than the fastening zone, toward the lower edge of the shingle;
- and
- (g) said wind-resistant layer comprising a material selected from the group consisting of:
- (i) thin fabric;
- (ii) plastic film;
- (ii) paper;
- (iv) parchment;
- and
- (v) foil
- reinforcement embedded in the asphaltic layer on the lower surface of the shingle.
Dependencies are inferred from the claim text.