Air sealed roof assembly having secondary air seals isolated from unstable perimeter penetration and protrusion areas
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United States of America Patent
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-
Dec 28, 1999
Grant Date -
N/A
app pub date -
Jun 1, 1995
filing date -
Jun 1, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A laterally air permeable roof assembly having seals at perimetrical edges of the roof and at all penetrations of the roof assembly includes secondary air seals spaced from the perimetrical air seals and the protrusion air seals such that the secondary air seals are isolated from unstable areas of the roof. The unstable areas of the roof are areas which experience a high degree of expansion and contraction in different planes.
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