Protected membrane roof system for high traffic roof areas
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United States of America Patent
Stats
-
Apr 21, 1987
Grant Date -
N/A
app pub date -
Dec 24, 1984
filing date -
Dec 24, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An insulated roofing system is provided in which a waterproof membrane is applied to the roof deck. Extruded panels of closed cell polystryrene foam are provided on top of the membrane, thus protecting the membrane from thermal cycling, ultraviolet rays, and physical damage. The foam panels provide excellent insulation and are resistant to water. A waterproof plastic film is bonded to the under surface of each panel positively to exclude water. The foam panels are extruded and are provided on the upper surface with integral ribs spaced by grooves. Concrete panels are laid directly on top of the polystyrene foam and lie gravitationally on the ribs. The ribs provided for ventilation and moisture removal on hot, dry days.
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Cited Art Landscape
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