The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 1987
Filed:
Oct. 23, 1984
Applicant:
Inventors:
Gregory R Cooper, Swanwick, GB;
Robert J Pragnell, Cheltenham, GB;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04B / ; B32B / ; C09J / ; A61F / ;
U.S. Cl.
CPC ...
156 71 ; 156 82 ; 156247 ; 156337 ; 428 40 ; 428137 ; 428291 ;
Abstract
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.