Laminated roofing shingle

摘要

A shingle is provided having a headlap section and a buttlap section with at least one portion of the buttlap section having a relatively uniform color and/or value and an adjacent portion of the buttlap section having a value gradation from light to dark. A plurality of horizontal striations with transition stripes disposed between adjacent horizontal striations may be used to establish the desired value gradation. An illusion of depth or thickness is created on the portion of the buttlap section having the value gradation. The buttlap section defines in part the exposed weather surface of the associated shingle. The relatively uniform color and/or value portions may be formed on tabs or dragon teeth and the value gradation formed on a backer sheet disposed beneath the tabs. Openings between adjacent tabs expose the associated enhanced value gradation to view. The amount of contrast between adjacent striations may be substantively increased to create the desired illusion of depth or thickness while the transition stripes provide a subtle change in value from one striation to the next striation. The number of horizontal striations and their width may also be varied to provide the desired value gradation.