Hot bitumen compatible epdm roofing sheet

E - Fixed Constructions – 04 – D

Patent

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Details

E04D 5/10 (2006.01) B32B 25/08 (2006.01) B32B 27/12 (2006.01) E04D 5/06 (2006.01)

Patent

CA 2356358

A roof membrane and a roof system employing an EPDM membrane (11) which is compatible with a bituminous adhesive. The membrane includes an outer layer (12) of polymeric layer such as EPDM bonded to a polyester protective layer (16) which is in turn bonded to a fleecy material (22). This can be adhered to a roof deck surface (24) using hot asphalt or bitumen (26) which bonds the fleecy material to the roof deck in turn holding the EPDM in place. The polyester layer (16) prevents the asphaltic material (26) from attacking and dissolving the EPDM with the fleecy material (22) providing good adhesion between the polyester and the EPDM.

L'invention concerne une membrane et un système pour toiture faisant appel à une membrane EPDM (11) qui est compatible avec un adhésif bitumineux. La membrane comprend une couche extérieure (12) polymère comme de l'EPDM liée à une couche de protection de polyester (16) qui, à son tour, est soudée à un matériau pelucheux (22). Ce système peut être collé à une surface de plancher-terrase (24) à l'aide d'asphalte chaud ou de bitume (26) qui soude le matériau pelucheux au plancher-terrrasse en maintenant ainsi l'EPDM en place. La couche de polyester (16) empêche le matériau asphaltique (26) d'attaquer et de dissoudre l'EPDM avec le matériau pelucheux (22) et assure ainsi une bonne adhésion entre le polyester et l'EPDM.

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