Protective drainage wraps

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 5/02 (2006.01) E04B 5/00 (2006.01)

Patent

CA 2650792

A protective drainage wrap comprises a porous layer, a breathable solid layer portion and a plurality of fibers, filaments, tapes or yarn. The porous layer is adapted to allow water to pass therethrough. The breathable solid layer portion is adapted to allow water vapor to pass therethrough while preventing or inhibiting water from passing therethrough. The plurality of fibers, filaments, tapes or yarn is located between and attached to the porous layer and the breathable solid layer portion. The plurality of fibers, filaments, tapes or yarn forms a plurality of channels to assist in forming a drainage path for draining liquid water from the protective drainage wrap.

La présente invention concerne une enveloppe de drainage protectrice qui comprend une couche poreuse, une partie couche solide respirante et une pluralité de fibres, filaments, rubans ou fils. La couche poreuse est conçue pour permettre à l'eau de la traverser. La partie couche solide respirante est conçue pour permettre à la vapeur d'eau de la traverser tout en empêchant ou inhibant le passage de l'eau. La pluralité de fibres, filaments, rubans ou fils se trouve entre et est fixée à la couche poreuse et la partie couche solide respirante. La pluralité de fibres, filaments, rubans ou fils forme une pluralité de canaux qui participent à la formation d'un passage de drainage destiné à drainer de l'eau liquide depuis l'enveloppe de drainage protectrice.

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