Laminated roofing shingle
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Dec 23, 2004
app pub date -
Jun 17, 2003
filing date -
Jun 17, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A laminated roofing shingle has an increased nailing zone obtained by increasing the width of the backer strip and thinning a portion of the extended backer strip underlying the nailing zone on the upper shingle layer. The thinned portion is of a width such that when a pair of the shingles are stacked one atop the other with their respective backer strips oriented in opposite directions, the respective thinned portions are aligned with one another and are separated only by the upper shingle layer of the lowermost shingle. When stacked and bundled, the extended backer strip portions do not substantially increase the height of the bundle. The height of the bundle may be further reduced by forming a longitudinally extending thinned area in the upper shingle layer overlying the thinned portion of the backer strip. Thinning of both the backer strip portion and the upper layer is achieved by depositing on the asphalt coated mat in these areas, mineral granules of a smaller size than are deposited on the remainder of the weather surfaces of the two shingle layers or a thin self-sticking tape strip.
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Cited Art Landscape
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