Method of forming a waterproof roof

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United States of America Patent

PATENT NO 4670071
SERIAL NO

06664002

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Abstract

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A roofing method comprises applying to a roof deck a self-adhesive sheet comprising an adhesive and waterproofing layer of bituminous compound so that the sheet adheres to the deck over an area of 10-50% of the total sheet area and water vapor passing through the deck may escape laterally; rendering the upper surface of the sheet adhesive, for example by torching; optionally applying insulation board and a further self-adhesive sheet, and applying a final waterproofing sheet. The use of hot bitumen is completely avoided, the formation of waterproof and insulated roofs is simplified and economies are offered.

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Patent Owner(s)

Patent OwnerAddress
COAL INDUSTRY (PATENTS) LIMITEDHOBART HOUSE GROSVENOR PLACE LONDON SW1X K7AE

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cooper, Gregory R Swanwick, GB2 1 32
Pragnell, Robert J Cheltenham, GB2 2 37

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