Patent 8240100 was granted and assigned to CertainTeed on August, 2012 by the United States Patent and Trademark Office.
A multiple-layer laminated shingle and a method of making the shingle are provided, in which at least one adhesive of high temperature resistance is applied for securing the shingle layers together, to reduce reliance on a roofer having to fasten (via nails, staples or other fasteners) through a narrow headlap zone of a posterior shingle layer in order to secure the posterior shingle layer to a roof; such that a vertically wide portion of the headlap area of the anterior shingle layer is presented to the roofer as a nailing zone.