Sealing sheets for roofs
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United States of America Patent
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Jun 18, 1991
Grant Date -
N/A
app pub date -
Sep 22, 1988
filing date -
Dec 24, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Sealing system for roofs by means of two successive sealing layers. The first sealing layer is mechanically attached to the support and the second, self-adhesive, sealing layer is attached to the first sealing layer by cold self-adhesion. The first sealing layer comprises sealing sheets made up by the assembling of one asphalt-base sheet reinforced by an armature and of a film of a polymer having a high tear resistance.
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