Static structures (e.g. – buildings) – Lapped multiplanar surfacing; e.g. – shingle type – Plural tabs or facing elements simulator
Patent
1993-07-19
1995-03-28
Friedman, Carl D.
Static structures (e.g., buildings)
Lapped multiplanar surfacing; e.g., shingle type
Plural tabs or facing elements simulator
52557, 52555, 52518, E04D 112
Patent
active
054005582
ABSTRACT:
A roofing shingle is provided for shingling a roof with overlapped shingles, wherein the exposed portion of the shingle is selected to be of a height in the installed condition relative to the overall height of the shingle that enhances material utilization, to be at least approximately 44.4% efficient. This is accomplished by using an exposure height of 8 inches relative to an overall shingle height of 18 inches. The shingles are preferably constructed to have either 3 or 4 tabs, thereby having a ratio of exposure height to tab width of either 0.667 or 0.889, respectively. A larger exposure allows one to obtain 200 shingles for each 300 lineal feet of sheet shingle material, when the shingles have 18 inch overall height, and further allows an overall saving in the number of nails required to install a roof. The invention also contemplates variations in tab width within a given shingle and variations in number of tabs from about one to nine tabs in a given shingle.
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Hannah Marcia G.
Mehrer George W.
Noone Michael J.
Quaranta Joseph
Stahl Kermit E.
Canfield Robert J.
Certain-Teed Corporation
Friedman Carl D.
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