EP2099607A1 - Revêtement de bâtiment destiné à être utilisé dans des ensembles de mur externes ayant des façades appliquées à l'état humide - Google Patents

Revêtement de bâtiment destiné à être utilisé dans des ensembles de mur externes ayant des façades appliquées à l'état humide

Info

Publication number
EP2099607A1
EP2099607A1 EP07867910A EP07867910A EP2099607A1 EP 2099607 A1 EP2099607 A1 EP 2099607A1 EP 07867910 A EP07867910 A EP 07867910A EP 07867910 A EP07867910 A EP 07867910A EP 2099607 A1 EP2099607 A1 EP 2099607A1
Authority
EP
European Patent Office
Prior art keywords
water
layer
building
intervening layer
wrap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07867910A
Other languages
German (de)
English (en)
Inventor
Theresa Weston
Barbara K. O'rourke
Mieczyslaw Stachnik
Warren F. Knoff
Wazir Nobbee
Kimdolyn Boone
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/900,996 external-priority patent/US20090075033A1/en
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of EP2099607A1 publication Critical patent/EP2099607A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/625—Sheets or foils allowing passage of water vapor but impervious to liquid water; house wraps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed

Definitions

  • the present invention relates to a building wrap for wrapping the structural components of a building in order to protect the structural components and optional building sheathing from moisture.
  • WRB water resistive barrier
  • house wrap Two sheets of a water resistive barrier
  • buildings wraps can include two layers of Grade D building paper, two layers of asphalt-saturated kraft paper, two layers of building felt, two layers of a conventional polymeric house wrap, or one layer of building paper combined with one layer of polymeric house wrap.
  • Known polymeric house wraps for use as WRBs include, for example, spunbond polyethylene sheet available under the trade name DuPontTM Tyvek®
  • Weather-resistant barriers shall be installed as required in Section 1404.2 and, where applied over wood-based sheathing, shall include a weather-resistant vapor- permeable barrier with a performance at least equivalent to two layers of Grade D paper.
  • the weather resistant barrier that is applied over wood-based sheathing has a water resistance equal to or greater than that of 60 minute Grade D paper and is separated from the stucco by an intervening, substantially non-water-absorbing layer or drainage space.
  • the present invention is directed to a multiple sheet building wrap for wrapping the structural components of a building in order to protect the structural components and optional sheathing from moisture.
  • the building wrap comprises: a. a moisture vapor permeable water-resistive barrier; and b.
  • an intervening layer comprising a porous, liquid permeable sheet having a maximum pore size of between about 20 micrometers and about 150 micrometers and having a hydrostatic head of less than 10 cm selected from the group consisting of woven fabrics, spunbond nonwoven sheets, spunlaced nonwoven sheets, spunbond-meltblown nonwoven sheets, water-absorbent fibrous layers, spunbond-meltblown- spunbond nonwoven sheets and perforated films; wherein the water resistive barrier and the intervening layer are not fully adhered, so that a drainage space is provided between the water resistive barrier and the intervening layer through which liquid water can pass.
  • building wrap comprises: a. a moisture vapor permeable water-resistive barrier; and b. a wettable intervening layer comprising: i. a moisture vapor permeable sheet having a maximum pore size of between about 1 micrometer and about 150 micrometers selected from asphalt-saturated papers, felts, nonwoven fabrics, perforated coated sheets comprising woven tapes, perforated films, laminates thereof, and laminates comprising a nonwoven or woven fabric and a porous moisture vapor permeable film; and ii.
  • the invention is also directed to a process of wrapping the structural components and optional sheathing of a building with the multiple sheet building wrap in order to protect the building structure from moisture.
  • the invention is also directed to a multiple sheet building wrap as described above, further comprising a lath layer adjacent the intervening layer, wherein the water resistive barrier, the intervening layer and the lath layer are attached.
  • the invention is also directed to an external wall assembly of a building utilizing the multiple sheet building wrap as described above.
  • nonwoven fabric refers to a structure of individual strands (e.g. fibers, filaments, or threads) that are positioned in a random manner to form a planar material without an identifiable pattern, as opposed to a knitted or woven fabric.
  • fiber is used herein to include staple fibers as well as continuous filaments. Examples of nonwoven fabrics include meltblown webs, spunbond nonwoven webs, flash spun webs, staple-based webs including carded and air-laid webs, spunlaced webs, and composite sheets comprising more than one nonwoven web.
  • plexifilamentary as used herein, means a three-dimensional integral network or web of a multitude of thin, ribbon-like, film-fibril elements of random length and with a mean film thickness of less than about 4 micrometers and a median fibril width of less than about 25 micrometers.
  • the film-fibril elements are generally coextensively aligned with the longitudinal axis of the structure and they intermittently unite and separate at irregular intervals in various places throughout the length, width and thickness of the structure to form a continuous three-dimensional network.
  • a nonwoven web of plexifilamentary film-fibril elements is referred to herein interchangeably as a "flash spun plexifilamentary sheet” and a “plexifilamentary film-fibril sheet.”
  • flash spun plexifilamentary sheet and a “plexifilamentary film-fibril sheet.”
  • Examples of plexifilamentary film-fibril structures are flash-spun polyolefin sheet sold by DuPont under the trade name DuPontTM Tyvek® HomeWrap® and DuPontTM Tyvek® StuccoWrap®.
  • the term "water-resistive barrier” also referred to herein as "WRB” refers to a material behind an exterior wall covering of a building that resists liquid water that has penetrated behind the exterior covering from further intruding into the exterior wall assembly.
  • a WRB is capable in its as-received condition (i.e., not subjected to weathering) of meeting the water resistance, moisture vapor permeability and strength requirements of Acceptance Criteria for Water-Resistive Barriers AC38 (effective date July 1 , 2004), published by ICC Evaluation Service, Inc., Whittier, California.
  • the present invention relates to a multiple sheet building wrap for wrapping the sheathing and/or structural components of a building in order to protect the components from liquid water penetration, especially for use in buildings having wet-applied facades such as traditional three-coat stucco or engineered stone (herein referred to interchangeably as "stucco").
  • the multiple sheet building wrap of the invention is moisture vapor permeable so that any moisture on the interior of the building wrap, e.g., moisture contacting the sheathing or structural components wrapped by the building wrap, is permitted to dry.
  • the multiple sheet building wrap includes a moisture vapor permeable WRB layer, an intervening layer (also referred to as "IL") and a drainage space between the WRB layer and the intervening layer.
  • IL intervening layer
  • the WRB may be referred to as being positioned behind or underneath the IL
  • the terms “outer”, “outside” or “exterior” indicate locations farther away from the building and the terms “inner”, “inside” or “interior” indicate locations relatively closer to the building.
  • Liquid water which may happen to penetrate from the exterior of the wall assembly is directed within the intervening layer to the bottom of the wall assembly where it is directed to the exterior of the building.
  • the water could also pass through the intervening layer and be directed by the WRB layer (without wetting the WRB layer) vertically in the drainage space between the intervening layer and the WRB layer as a result of gravity to the bottom of the wall where it is directed to the exterior of the building.
  • the intervening layer is preferably wettable.
  • the layers of the building wrap can be nonabsorbent, facilitating drying through diffusion.
  • the capacity of the building wrap of the invention for drainage and drying make it particularly well suited for use with stucco facades, aiding in the curing of the stucco so that the resulting stucco facade has good flexural strength and reduced incidence of shrinkage cracking.
  • the intervening layer acts as a barrier or filter layer which does not allow significant penetration of stucco therethrough. Stucco penetration is undesirable as it hinders liquid water drainage and moisture vapor permeability of the building wrap.
  • the degree of penetration of stucco through the intervening layer depends on the porosity and water absorbance of the IL material, the size of the particles in the stucco mixture, and the pressure at which the stucco is applied.
  • WRB layers suitable for use in the building wrap of the invention are capable in their initial, as-received condition of meeting the water resistance, moisture vapor permeability and strength requirements of Acceptance Criteria for Water-Resistive Barriers AC38 (effective date July 1 , 2004).
  • the WRB layer is permeable to moisture vapor, having an average moisture vapor transmission rate of at least 35 g/m 2 per 24 hours.
  • Suitable moisture vapor permeable WRBs for use as the WRB layer of the multiple sheet building wrap include porous sheets, which include woven fabrics, such as sheets of woven fibers or tapes, or nonwoven fabrics, such as flash-spun plexifilamentary sheets, spunbond nonwoven sheets, spunbond-meltblown nonwoven sheets, spunbond-meltblown-spunbond (SMS) nonwoven sheets, asphalt-saturated papers, felts and laminates of any of the above including laminates of nonwoven or woven fabrics and a moisture vapor permeable film such as microporous film, perforated film or nonporous breathable film.
  • porous sheets which include woven fabrics, such as sheets of woven fibers or tapes, or nonwoven fabrics, such as flash-spun plexifilamentary sheets, spunbond nonwoven sheets, spunbond-meltblown nonwoven sheets, spunbond-meltblown-spunbond (SMS) nonwoven sheets, asphalt-saturated papers, felts and laminates of any of the above including
  • Suitable flash-spun plexifilamentary WRBs are DuPontTM Tyvek® HomeWrap® and DuPontTM Tyvek® StuccoWrap®, commercially available from DuPont.
  • Suitable flash spun plexifilamentary film-fibril sheet materials can be formed from a variety of polymeric compositions, such as, for example, polyolefins such as polypropylene or high density polyethylene, polyesters, or polyamides.
  • the moisture vapor permeable sheet can be a laminate of a flash spun plexifilamentary sheet with one or more additional layers, such as a laminate comprising a flash spun plexifilamentary sheet and a melt-spun spunbond sheet.
  • Flash spinning processes for forming web layers of plexifilamentary film-fibril strand material are disclosed in U.S. Pat. Nos. 3,081 ,519 (Blades et al.), 3,169,899 (Steuber), 3,227,784 (Blades et al.), 3,851,023 (Brethauer et al.).
  • the WRB layer can also be selected from sheets used in the construction industry including sheets of woven tapes that have been coated with a polymeric film layer and perforated.
  • Microporous films are well known in the art, such as those formed from a mixture of a polyolefin (e.g., polyethylene) and fine particulate fillers, which is melt-extruded, cast or blown into a thin film and stretched, either mono- or bi-axially to form irregularly shaped micropores which extend continuously through the thickness of the film.
  • U.S. Patent No. 5,955,175 discloses microporous films, which have nominal pore size of about 0.2 micrometer.
  • Microporous films can be laminated to nonwoven or woven layers using methods known in the art such as thermal or adhesive lamination.
  • Perforated films are formed by casting or blowing a polymer into a film, followed by mechanically perforating the film, as generally disclosed in European Patent Publication No. EP 1 400 348 A2.
  • the moisture vapor permeable WRB for use in embodiments of the invention can be a low emissivity, breathable house wrap or a roof lining product having a metallized surface, such as those described in U.S. patent application number 10/924,218.
  • Intervening Layer (IL) Intervening Layer
  • the multiple sheet building wrap of the invention includes a porous intervening layer adjacent the exterior surface of the WRB.
  • the intervening layer is moisture vapor permeable and is preferably wettable. Whether a substrate is "wettable" or not depends on how much water beads up on the surface of the substrate. A material is non-wettable if beads of water form upon a surface and the contact angle between the surface and the water are greater than about 90 degrees. On the other hand, a substrate is wettable where water spreads over the surface and the contact angle of beads of water is less than about 90 degrees. The closer the contact angle is to zero, the more wettable the substrate is.
  • the intervening layer has a maximum pore size of between about 20 micrometers and about 150 micrometers, even between about 30 micrometers and about 150 micrometers, even between about 70 micrometers and about 120 micrometers, and is permeable to liquid water, so that if liquid water comes into direct contact with the intervening layer, it will readily pass through the intervening layer and drain through the drainage space between the WRB and the IL. The water is allowed to pass unimpeded as the WRB and the IL are not fully adhered across their entire adjoining surfaces.
  • the pore size of the intervening layer is such that liquid water penetrates the intervening layer, but wet-applied facade materials such as wet stucco do not penetrate through the intervening layer when applied to a lath layer installed adjacent to the outer surface of the intervening layer. Stucco may adhere to or embed itself in the intervening layer, but for proper functioning of the building wrap; stucco should not penetrate through the intervening layer to the WRB.
  • the WRB and IL can be either not attached at all (e.g., a two-ply material which can be co-wound onto a roll and subsequently installed together) or attached in a discontinuous manner (i.e., not continuously adhered over significant surface area).
  • the two layers can be attached by means of adhesive strips, adhesive spots (or spot gluing), or spot welding or ultrasonic bonding in a discrete pattern.
  • the intervening layer has a hydrostatic head of less than 10 cm of water, even less than 6 cm of water, even less than 4 cm of water, and even less than 1 cm or less of water.
  • the intervening layer should have sufficient abrasion resistance to prevent tearing of the intervening layer by manual application of stucco, and have sufficient strength to withstand the installation of the lath and application of stucco.
  • Suitable intervening layers include porous sheets, which include woven fabrics, such as sheets of woven fibers or tapes, nonwoven fabrics, such as flash-spun plexifilamentary sheets, spunbond nonwoven sheets, spunbond-meltblown nonwoven sheets, spunbond-meltblown-spunbond (SMS) nonwoven sheets, asphalt-saturated papers, felts and laminates of any of the above including laminates of nonwoven or woven fabrics and a moisture vapor permeable film such as microporous film, perforated film or nonporous breathable film.
  • woven fabrics such as sheets of woven fibers or tapes
  • nonwoven fabrics such as flash-spun plexifilamentary sheets, spunbond nonwoven sheets, spunbond-meltblown nonwoven sheets, spunbond-meltblown-spunbond (SMS) nonwoven sheets, asphalt-saturated papers, felts and laminates of any of the above including laminates of nonwoven or woven fabrics and a moisture vapor permeable film such as microporous film,
  • the intervening layer can be made wettable by any of various known means, including coating the layer with a composition containing a surfactant in an amount sufficient to impart wettability to the intervening layer, incorporating a hydrophilic polymer additive into the layer and plasma treating the surface of the layer. It has been found that coating the intervening layer with a nonstick release coating including silicone or PTFE desirably facilitates drainage.
  • Spunbond sheets suitable for use as the intervening layer can be made by a process in which multiple spinning beams form multiple layers simultaneously.
  • one surface of the IL can be made to be more hydrophilic than the other by the inclusion of a spun-in hydrophilic additive. It has been found that the less hydrophilic surface preferably faces the stucco facade because the surface tends to pull less of the stucco through the IL, the more hydrophilic surface remains better protected from UV weathering, and better adhesion to tapes used in construction such as flashing materials utilizing butyl based adhesives.
  • Suitable perforated films for use as the intervening layer allow water to drain through perforations under low pressure drop and downward under gravity.
  • Perforated films should be relatively hydrophobic in order to facilitate the flow of water downward rather than laterally.
  • the size of the perforations is small to reduce stucco penetration without restricting the passage of water through the film.
  • the intervening layer can consist of multiple layers of perforated film in which the layers have the same or different perforation size.
  • the intervening layer can be a wettable moisture vapor permeable sheet that is not liquid permeable, or a combination of a wettable moisture vapor permeable sheet attached to a WRB that is not liquid permeable, so that the IL has a maximum pore size of between about 1 micrometer and about 150 micrometers.
  • liquid water is not permitted to pass through the IL, it is directed through the IL by capillary action under gravity to the bottom of the wall.
  • an IL is a carded fibrous layer or a multilayer combination of carded fibrous layers, e.g., layer(s) made from water-absorbent fibers, such as cellulosic (e.g., rayon) staple fibers, or a combination of cellulosic and polyester staple fibers in which the polyester fibers provide strength.
  • water-absorbent fibers also include fibers formed from any known water-absorbing polymer composition, such as those disclosed in PCT Publication Number
  • the carded fibrous layer(s) can be used as the IL either alone or in combination with a WRB layer.
  • the carded fibrous layer(s) can be thermally bonded by incorporating a binder material in the form of binding fibers or powder binder and subjecting the layer(s) to heat to soften or melt the binder.
  • the binding fibers can be single polymer component fibers or bicomponent fibers, e.g., having a lower melting polymer component sheath surrounding a higher melting polymer component core.
  • the pore size of the IL can be controlled by varying the fiber density and denier of the staple fibers and/or the binding fibers used.
  • the water-absorbent fibrous layer(s) preferably has a hydrostatic head of less than 10 cm.
  • the IL can be a composite of a wettable moisture vapor permeable sheet and a water-absorbent fibrous layer(s), wherein the moisture vapor permeable sheet is located toward the interior and the water-absorbent fibrous layer(s) is located toward the exterior.
  • the WRB can be a woven fabric, spunbond nonwoven sheet, spunlaced nonwoven sheet, spunbond-meltblown nonwoven sheet, spunbond- meltblown-spunbond nonwoven sheet or other nonwoven fabric, asphalt- saturated paper, felt, perforated coated sheets comprising woven tapes, laminates thereof, and laminates comprising a nonwoven or woven fabric and a porous moisture vapor permeable film.
  • the manner in which the carded fibrous layer(s) or the composite and the WRB layer are combined must not impede the moisture vapor transmission of the combined intervening layer.
  • spot gluing is a suitable manner of attachment because moisture vapor is permitted to permeate through the IL where the layers are not glued.
  • the adhesion of the water-absorbent fibrous layer(s) to the WRB can be controlled by varying the amount and/or composition of the binder material.
  • the IL when the IL includes a water-absorbent fibrous layer(s) containing polyethylene as a binder material and a WRB containing polyethylene (e.g., DuPont® TyvekTM HomeWrapTM), the water-absorbent fibrous layer(s) can be peeled away from the WRB during installation of the building wrap of the invention for flashing of windows and doors directly to the WRB layer.
  • a water-absorbent fibrous layer(s) containing polyethylene as a binder material and a WRB containing polyethylene e.g., DuPont® TyvekTM HomeWrapTM
  • the water-absorbent fibrous layer(s) can be peeled away from the WRB during installation of the building wrap of the invention for flashing of windows and doors directly to the WRB layer.
  • An optional prefilter layer can be included over the IL to act as a further filter for the fines of the stucco to protect the IL from clogging and to further facilitate drainage of water.
  • the prefilter layer can be a woven or nonwoven fabric which is permeable to liquid water, having essentially no resistance to hydrostatic pressure (i.e., hydrohead of about zero).
  • the prefilter layer advantageously has a liquid flow rate of at least about 85 gal/min/ft 2 according to ASTM D 4491 , and advantageously has an apparent opening size of about 0.425 mm according to ASTM 4751. Suitable materials for use as the prefilter layer include woven geotextiles and spunbond nonwovens.
  • the optional prefilter layer can be either attached to the IL by spot welding or co-wound with the IL, so that it can be conveniently transported, handled and installed with the IL.
  • one or both of the sheets of the building wrap are durable when exposed to UV radiation, extreme temperatures and repeated exposure to water.
  • the WRB and IL may each be formed from a variety of polymeric compositions.
  • One or both of the sheets of the multiple sheet building wrap can be textured such as by creping to form vertical drainage channels between the WRB and the intervening layer. Alternatively, both of the sheets can be flat or untextured.
  • the multiple sheet building wrap can further include a layer of lath material attached to the IL.
  • the lath material can be any flexible material capable of holding and supporting stucco or other wet-applied facade material. This allows the multiple sheet building wrap and the lath to be conveniently and economically installed together in one step.
  • the WRB layer of the multiple sheet building wrap can be installed in a first step, followed by the installation of a composite sheet including the IL attached to a lath layer.
  • ASTM refers to the American Society of Testing Materials.
  • ISO refers to the International Standards Organization.
  • TAPPI refers to Technical Association of Pulp and Paper Industry. Drainage Test was used to rate the degree of drainage of water when applied to test samples of building wrap having stucco applied.
  • the stucco included 3 parts sand, 1 part Portland cement, and enough water to make a consistent slurry.
  • Rectangular test wall modules were constructed from OSB panels, forming a wall 48 in (122 cm) wide by 16 in (41 cm) high. SaranTM wrap
  • Pore Size was measured using the Capillary Flow Porometer method and follows ASTM F316-86 and F778.
  • wettability of a surface was determined by spraying the surface with water and observing the contact angles and the behavior of the water droplets on the surface.
  • intervening layer samples were combined with a WRB layer of DuPontTM Tyvek® HomeWrap® spunbond polyethylene or DuPontTM Tyvek® StuccoWrap® spunbond polyethylene to form samples of building wrap which were subsequently subjected to drainage testing.
  • the resulting drainage rating data are provided in Table 1.
  • the 60 minute building paper, available from Fortifiber, Reno, NV was combined with a second layer of 60 minute building paper as is conventional in the trade, rather than a WRB layer of DuPontTM Tyvek® HomeWrap® spunbond polyethylene.
  • intervening layers were made from BrantTM SBPP (spunbond polypropylene) nonwoven fabric with a 100 gsm basis weight, available from Fitesa (Gravatai, Brazil). Some of the intervening layers were creped, and some of the intervening layers were treated with release coatings as indicated in Table 1. Release coatings 7442 and 7291 available from Huron Technologies (Leslie, Ml); DryFilm WDL- 5WTM PTFE based release coating from DuPont; and 1152, a wax-based release coating from Michelman (Cincinnati, OH), were used.
  • Examples 8 and 9 which contained a hydrophilic additive as noted above had a hydrostatic head of about 4.9 cm.
  • Example 7 which consisted of a carded layer of rayon and PET staple fibers attached to a WRB. Poorer drainage was demonstrated by the 60 minute building paper (Comparative Example 7) and Comparative Examples 5 and 6,which were non-wettable, that is, they did not contain a hydrophilic additive.
  • Examples 10 and11 illustrate the importance of the percentage of the water-absorbent fibers when such fibers are included in the IL.
  • Example 10 having 26% rayon fibers, demonstrated a good combination of drainage and
  • Example 12 included a woven polypropylene geotextile having a loose weave, (available from US Fabrics, Cincinnati, OH) and therefore having no resistance to hydrostatic pressure.
  • the prefilter layer reduced the amount of fines from the stucco that became embedded in the IL, providing better drainage through the IL.
  • the prefilter also reduced the effect of the water absorption of the rayon fibers on the stucco because it provided a separation layer between the IL and the stucco.
  • a woven polypropylene slit film having a tight weave available from Joe M. Almand, Inc., Atlanta, GA
  • the tight weave of the prefilter would not permit water to pass through, therefore drainage was very poor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)

Abstract

L'invention concerne un revêtement de bâtiment à multiples feuilles, pour revêtir les composants structuraux d'un bâtiment afin de protéger de l'humidité les composants structuraux sous-jacents. Le revêtement de bâtiment est en particulier utile sous des façades telles que du stuc appliqué à l'état humide ou des pierres reconstituées, démontrant une bonne évacuation d'eau liquide et une bonne perméabilité à la vapeur d'eau. Le revêtement de bâtiment est un composite d'une barrière résistant à l'eau et d'une couche d'intervention poreuse servant de barrière au stuc lorsqu'il est appliqué. L'invention concerne également une construction de mur extérieur incorporant un tel revêtement de bâtiment.
EP07867910A 2006-12-27 2007-12-20 Revêtement de bâtiment destiné à être utilisé dans des ensembles de mur externes ayant des façades appliquées à l'état humide Withdrawn EP2099607A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US87728006P 2006-12-27 2006-12-27
US11/900,996 US20090075033A1 (en) 2007-09-14 2007-09-14 Building wrap for use in external wall assemblies having wet-applied facades
PCT/US2007/026112 WO2008085394A1 (fr) 2006-12-27 2007-12-20 Revêtement de bâtiment destiné à être utilisé dans des ensembles de mur externes ayant des façades appliquées à l'état humide

Publications (1)

Publication Number Publication Date
EP2099607A1 true EP2099607A1 (fr) 2009-09-16

Family

ID=39284119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07867910A Withdrawn EP2099607A1 (fr) 2006-12-27 2007-12-20 Revêtement de bâtiment destiné à être utilisé dans des ensembles de mur externes ayant des façades appliquées à l'état humide

Country Status (3)

Country Link
EP (1) EP2099607A1 (fr)
JP (1) JP2010514962A (fr)
WO (1) WO2008085394A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10920028B2 (en) * 2014-06-18 2021-02-16 Dupont Safety & Construction, Inc. Plexifilamentary sheets
EP3237699A1 (fr) 2014-12-22 2017-11-01 3M Innovative Properties Company Articles barrières à l'air et à l'eau
CA2995982A1 (fr) 2015-08-18 2017-02-23 3M Innovative Properties Company Article formant barriere a l'air et a l'eau avec une couche poreuse et une gaine
US11105099B2 (en) 2018-01-08 2021-08-31 Low & Bonar Inc. Extruded mat

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2987090B2 (ja) * 1995-09-04 1999-12-06 フクビ化学工業株式会社 モルタル下地シート
US6355333B1 (en) * 1997-12-09 2002-03-12 E. I. Du Pont De Nemours And Company Construction membrane
US20060194494A1 (en) * 2001-02-20 2006-08-31 Lubker John W Ii Protective drainage wraps
US20060194495A1 (en) * 2001-02-20 2006-08-31 Lubker John W Ii Protective drainage wraps
US7972981B2 (en) * 2002-03-15 2011-07-05 Fiberweb, Inc. Microporous composite sheet material
US20030199217A1 (en) * 2002-04-15 2003-10-23 Reemay, Inc. Housewrap with drainage channels
JP3940338B2 (ja) * 2002-08-22 2007-07-04 セーレン株式会社 モルタル下地シート
WO2004052641A1 (fr) * 2002-12-10 2004-06-24 Saint Gobain Technical Fabrics Tissu respirant impermeable a l'eau et resistant au dechirement
US7487624B2 (en) * 2004-01-09 2009-02-10 E.I. Du Pont De Nemours And Company Breathable waterproof laminate structure
WO2006080907A1 (fr) * 2005-01-24 2006-08-03 Saint-Gobain Technical Fabrics Canada, Ltd. Matériau perméable aux vapeurs d’eau, résistant à l’eau liquide

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008085394A1 *

Also Published As

Publication number Publication date
JP2010514962A (ja) 2010-05-06
WO2008085394A1 (fr) 2008-07-17

Similar Documents

Publication Publication Date Title
US7805907B2 (en) Breathable low-emissivity metalized sheets
CA2438615C (fr) Enveloppes de drainage protectrices
US7487624B2 (en) Breathable waterproof laminate structure
EP2736710B1 (fr) Revêtement mural absorbant acoustique renfermant une couche de fibres multilobees
EP2736711B1 (fr) Revêtement mural absorbant acoustique
KR20160055873A (ko) 기피제 재료를 포함한 프리프레그, 코어, 복합물 및 물품
EP2748385B1 (fr) Revêtement mural pour confort thermique et acoustique
CA3035791A1 (fr) Substrat multicouche destine aux materiaux de toiture
GB2496244A (en) Laminated non-woven fabric, comprising meltblown and spunbonded layers, for roofing underlay
WO2008085394A1 (fr) Revêtement de bâtiment destiné à être utilisé dans des ensembles de mur externes ayant des façades appliquées à l'état humide
DK1756379T3 (en) Thin reflective insulation to roof substrates
ES2899912T3 (es) Sustratos compuestos ignífugos para membranas bituminosas
US20090075033A1 (en) Building wrap for use in external wall assemblies having wet-applied facades
WO1999029978A1 (fr) Membrane de construction
DE202004007543U1 (de) Abdichtungsbahn für Gebäude
US20090158683A1 (en) Multiple sheet building wrap for use in external wall assemblies having wet-applied facades
JP2010275842A (ja) 屋根用下地材とこれに使用される透湿性野地板
EP2122077A1 (fr) Revêtement de bâtiment à plusieurs feuilles utilisé dans des ensembles de paroi externe à façades appliquées à l'état humide
JPH01162852A (ja) 遮蔽布およびその製造方法
ES2929338T3 (es) Procedimiento para la producción de materiales compuestos laminados
EP1447212A1 (fr) Structure comprenant un voile de fibres de verre obtenu par voie humide et un voile de fibres organiques
DE10116477A1 (de) Dampfdiffusionsoffene und wasserdichte Dachunterspannbahn
US20240271015A1 (en) Self-adhering article
US20230094417A1 (en) Protective wrap for regulating fluid infiltration and methods of making, installing, and using the same
JP2009062674A (ja) 建築用下地シート

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20090720

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20100212

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20131212

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20140423