Roofing system, method and holddown apparatus
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United States of America Patent
Stats
-
Aug 18, 1987
Grant Date -
N/A
app pub date -
Mar 14, 1983
filing date -
Mar 14, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A holddown to be used in conjunction with a headed fastener, a roofing system and a method utilizing the same. The holddown comprises a disc-shaped spring and a body encasing the spring. The fastener is interpositionable within a hole in the body of the holddown and displacement of the fastener applies a compressive force to the holddown. The spring is deformable from an unbiased position to a biased postion by the compressive force. The body is deformable from an unconstrained shape to a constrained shape by the deformation of the spring. The holddown is usable in conjunction with both the fastener and pliant filler to affix roofing material in a watertight relationship to a roof structure and to maintain the same in position against the forces applied by the wind.
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International Classification(s)
Cited Art Landscape
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