Patent ID: 7516593
Filing Date: 2009-04-14
Classification: E04D,Y10S

Abstract:
1. A method of applying multiple courses of shingles on a roof, the method comprising: providing an underlying shingle having a front surface with a laying line positioned thereon, the laying line being defined by a near edge and a far edge; coupling the underlying shingle to the roof to form at least a portion of a first course; laying a first overlying shingle on at least a portion of the underlying shingle so that a leading edge of the first overlying shingle is positioned in proximity with the near edge of the laying line, said first overlying shingle including positioning the apex of the first nib so that it extends to the far edge of the laying line and is aligned with a top edge of the underlying shingle; and coupling the first overlying shingle to the roof, wherein the laying line is of a sufficient width such that the laying line is exposed when the leading edge of the first overlying shingle is placed in contacting proximity with the near edge of the laying line providing a second overlying shingle having a trailing edge; laying the second overlying shingle on at least a portion of the underlying shingle so that the trailing edge of the second overlying shingle is positioned in contacting proximity with the far edge of the laying line; the laying line of the underlying shingle is visible when the trailing edge of the second overlying shingle is positioned in contacting proximity with the far edge of the laying line; wherein the second overlying shingle includes a second nib having an apex and protruding from the trailing edge of the second overlying shingle, and a scale having at least two intervally-spaced markings positioned on a front surface of the second overlying shingle, and wherein the method further comprises: