초록 ▼

A drainage-promoting wrap includes an elongate web of a weather-resistive membrane and a series of separate, laterally spaced-apart, elongate filament spacers bonded to a face of the membrane. The filaments are preferably extruded polymeric filaments and have depressions formed therein providing tra

A drainage-promoting wrap includes an elongate web of a weather-resistive membrane and a series of separate, laterally spaced-apart, elongate filament spacers bonded to a face of the membrane. The filaments are preferably extruded polymeric filaments and have depressions formed therein providing transverse drainage paths across the filaments. Preferably, the filaments extend substantially parallel to each other and to a longitudinal axis of the elongate membrane. In addition, preferably the membrane is made of a polymeric material so that the filaments are thermally bonded to the face of the membrane. Wall and roof assemblies utilizing the wrap and methods of making the wrap are provided.

대표청구항 ▼

The invention claimed is: 1. A drainage-promoting wrap, comprising: an elongate strip of weather-resistive membrane storable in a spiral roll; and a series of separate, laterally spaced-apart, elongate spacers bonded to a face of said weather-resistive membrane, said elongate spacers being polymeri

The invention claimed is: 1. A drainage-promoting wrap, comprising: an elongate strip of weather-resistive membrane storable in a spiral roll; and a series of separate, laterally spaced-apart, elongate spacers bonded to a face of said weather-resistive membrane, said elongate spacers being polymeric filaments; each of said separate, laterally spaced-apart, polymeric filaments being of a thickness that projects to a predetermined height from said face of said membrane and having a series of depressions formed therein that do not extend to said predetermined height and that provide a series of drainage paths transversely across said filaments; and each of said separate spaced-apart polymeric filaments being a continuous extruded filament that extends in a longitudinal direction on said elongate membrane, including an alternating array of said depressions and full-size filament sections, and being free from intersection with any other filament on said membrane. 2. A drainage-promoting wrap according to claim 1, wherein said series of depressions are located at spaced intervals along a length of each filament and are formed by flattened sections of said filaments. 3. A drainage-promoting wrap according to claim 2, wherein said filaments extend substantially parallel to one another and do not intersect. 4. A drainage-promoting wrap according to claim 3, wherein said filaments extend substantially parallel to a longitudinal axis of said elongate membrane. 5. A drainage-promoting wrap according to claim 2, wherein said weather-resistive membrane is made of a non-polymeric material, and wherein said filaments are bonded to said membrane via sonic bonding, adhesive bonding, or mechanical bonding techniques. 6. A drainage-promoting wrap according to claim 2, wherein said weather-resistive membrane is made of a polymeric material, and wherein said filaments are bonded to said membrane via thermal bonding or sonic bonding. 7. A drainage-promoting wrap according to claim 6, wherein said polymeric material of said weather-resistive membrane is selected from a group consisting of a woven thermoplastic material, a non-woven thermoplastic material, polypropylene, high density polyethylene, nylon, polyester, and polyolefin. 8. A drainage-promoting wrap according to claim 6, wherein said polymeric filaments are made of a material selected from a group consisting of nylon, polypropylene, polyester, polyolefin, and polyethylene. 9. A drainage-promoting wrap, consisting of: an elongate strip of weather-resistive membrane storable in a spiral roll; and a series of separate, laterally spaced-apart, elongate spacers each separately bonded to a face of said weather-resistive membrane, said elongate spacers being polymeric filaments that are sufficiently spaced-apart such that a portion of said face of said membrane is exposed between each adjacent pair of said separate spaced-apart elongate filaments; each of said separate spaced-apart elongate polymeric filaments having a series of depressions formed therein that provide a series of drainage paths transversely across said filaments, each of said depressions being formed by a flattened section of said elongate filament, and each of said flattened sections being fused to said membrane to bond said filament to said membrane; and each of said separate spaced-apart elongate polymeric filaments being continuous extruded filament that extends in a longitudinal direction on said elongate membrane, including an alternating array of said depressions and full-size filament sections, and being free from intersection with other ones of said separate spaced-apart elongate polymeric filaments. 10. A method of making a drainage-promoting building wrap according to claim 9, comprising the steps of: bonding the series of separate, laterally spaced-apart, elongate polymeric filaments on the face of the elongate strip of the weather resistive membrane by flattening said filaments at spaced intervals to create the drainage paths extending transversely across said filaments. 11. A method according to claim 10, wherein said filaments are bonded to said face of said elongate strip such that said filaments extend in a longitudinal direction on said elongate strip. 12. A method according to claim 11, wherein said filaments are bonded to said face of said elongate strip such that the filaments do not intersect. 13. A method according to claim 12, wherein said weather-resistive membrane is made of a non-polymeric material, and wherein said filaments are bonded to said membrane via sonic bonding, adhesive bonding, or mechanical bonding techniques. 14. A method according to claim 12, further comprising the step of extruding said series of polymeric filaments onto said face of said membrane or a surface of a conveyer, before said bonding step. 15. A method according to claim 14, wherein said weather resistive membrane is made of a polymeric material and wherein, during said bonding step, said extruded polymeric filaments are thermally bonded to said membrane. 16. A method according to claim 15, further comprising the step of rolling said membrane into a spiral roll after said flattening step. 17. A method according to claim 10, further comprising the step of applying the series of polymeric filaments as a series of pre-extruded polymeric filaments onto the face of the membrane, before said bonding step.