Patent ID: 8752351

Claim:
A roofing shingle comprising: an asphalt coated overlay sheet including a headlap portion and a tab portion; an asphalt coated underlay sheet secured to the overlay sheet such that a region of the underlay sheet overlaps a region of the headlap portion of the overlay sheet; wherein the overlay sheet has a non-uniform thickness; and a reinforcement material secured to the headlap portion of the overlay sheet, wherein the reinforcement material is configured to improve nail pull-through; granules adhered to the asphalt coated overlay sheet and to the asphalt coated underlay sheet; wherein the reinforcement material and the headlap portion provide a nail pull-through value that is at least 13.3 percent greater than an otherwise identical shingle having no such reinforcement material; and wherein the weight of the shingle is less than an otherwise identical shingle having no such reinforcement material, because there are substantially no granules in a portion of the overlay sheet covered by the reinforcement material.