Lightweight cementitious roofing
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 28, 1994
Grant Date -
N/A
app pub date -
Apr 30, 1992
filing date -
Apr 30, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lightweight roofing shingle or tile having an elongated body with top and bottom surfaces that taper lengthwise of the body, the body having laterally spaced, elongated edges; the body having a mid-region and a recess sunk upwardly into the mid-region, from the bottom surface; the recess extending widthwise of the body to intersect the body laterally spaced edges whereby the recess is adapted to receive a batten to support the body mid-region when installed on a roof. A secondary taper on the tile bottom surface engages the roof to provide leverage resisting wind up-lift forces exerted on the lightweight tile acting to rotate the tile about a nailing point fulcrum.
First Claim
Family
International Classification(s)
Cited Art Landscape
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