| 摘要 |
<p>The invention relates to a method of reducing humping of a laminated roofing shingle (40) when the shingle is stacked with others of the shingle. The shingle includes a longitudinal central area (56) having an overlay (30) laminated with an underlay (32). The method involves providing a depression (58, 60) in the shingle that extends through at least a portion of the central area. In another embodiment, the invention is a method of reducing humping of a laminated roofing shingle including an overlay, an underlay, and an adhesive (88) between the overlay and the underlay in an area of the shingle. The method involves providing a depression in the shingle that extends through at least a portion of the adhesive area. In a further embodiment, the invention is a method of reducing humping of a roofing shingle having a sealant (94) in an area of the shingle. The method involves providing a depression in the shingle that extends through at least a portion of the sealant area.</p> |
