Method and apparatus for creating a scored hinge in a hip or ridge cap shingle
AssigneeBmic LLC
InventorOlan T. Leitch
Life of this patent
Estimating the term…
Abstract
A cap shingle configured to be installed over a hip or ridge of a roof structure, and a method for creating scored hinge lines in hip and ridge cap shingles during manufacturing while minimizing the likelihood of breakage along the scored hinge lines due to lane tension are disclosed. The method includes forming score lines with a scoring cylinder across lanes of shingle material just before the lanes are cut into individual cap shingles with a pattern cutter. The scoring cylinder and pattern cutter are controlled so that the score lines are consistently applied along the centerlines of the cap shingles.
Claims13
A roof structure, comprising:
- a hip or ridge;
- a plurality of cap shingles positioned along the hip or ridge, each cap shingle of the plurality of cap shingles comprising:
- (1) two separate layers of shingle material,
- wherein the layers include:
- (i) a top layer formed from a first web of shingle material comprising:
- an exposure portion;
- and
- a headlap portion configured to connect to an adjacent cap shingle along the hip or ridge;
- and
- (ii) a bottom layer formed from a second web of shingle material and positioned along a lower surface of the top layer, the bottom layer comprising:
- at least one score line at least partially extending through the bottom layer;
- and
- a slot in the bottom layer beginning at a forward edge of the bottom layer and extending toward the headlap portion;
- and
- (2) an adhesive material applied between the top and bottom layers so as to adhere the top layer to the bottom layer;
- wherein the slot is configured to facilitate bending of the bottom layer as the cap shingle is positioned over the hip or ridge with the bottom layer remaining adhered to the top layer.
A roof structure, comprising:
- a hip or ridge;
- a plurality of cap shingles positioned along the hip or ridge, each cap shingle of the plurality of cap shingles comprising:
- (1) two separate layers of shingle material, including:
- (i) a top layer formed from a first web of shingle material and comprising:
- an exposure portion;
- and
- a headlap portion configured to attach to an adjacent cap shingle along the hip or ridge;
- (ii) a bottom layer formed from a second web of shingle material and positioned along a lower surface of the top layer, the bottom layer comprising:
- at least one score line at least partially extending through the bottom layer;
- and
- a slot formed in the bottom layer beginning at a forward edge of the bottom layer and extending to an intermediate point along the bottom layer;
- and
- (2) an adhesive material applied between the top and bottom layers so as to adhere the top layer to the bottom layer;
- wherein the slot is formed through the bottom layer such that a portion of the top layer is exposed therethrough;
- wherein the slot is configured to facilitate bending of the bottom layer as the cap shingle is positioned over the hip or ridge with the bottom layer remaining adhered to the top layer.
Dependencies are inferred from the claim text.