EP2091726A2 - Membrane d'étanchéité à l'eau autocollante - Google Patents

Membrane d'étanchéité à l'eau autocollante

Info

Publication number
EP2091726A2
EP2091726A2 EP07839853A EP07839853A EP2091726A2 EP 2091726 A2 EP2091726 A2 EP 2091726A2 EP 07839853 A EP07839853 A EP 07839853A EP 07839853 A EP07839853 A EP 07839853A EP 2091726 A2 EP2091726 A2 EP 2091726A2
Authority
EP
European Patent Office
Prior art keywords
layer
membrane
accordance
cushion material
waterproof
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Withdrawn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
EP07839853A
Other languages
German (de)
English (en)
Other versions
EP2091726A4 (fr
Inventor
Dan Ben-Daat
Jon M. Jensen
Gary W. Whittemore
Brian J. Whelan
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.)
Sika Technology AG
Original Assignee
Sika Technology AG
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 US11/881,245 external-priority patent/US20080104917A1/en
Application filed by Sika Technology AG filed Critical Sika Technology AG
Publication of EP2091726A2 publication Critical patent/EP2091726A2/fr
Publication of EP2091726A4 publication Critical patent/EP2091726A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
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    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
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    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
    • Y02B80/32—Roof garden systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/14—Layer or component removable to expose adhesive
    • Y10T428/1476—Release layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2835—Web or sheet containing structurally defined element or component and having an adhesive outermost layer including moisture or waterproof component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2848—Three or more layers

Definitions

  • the invention is directed to a self-adhering membrane which may be applied to roof and/or wall structures, particularly "green” roof and plaza deck constructions, including planters, balconies, terraces, foundation walls, tunnel structures, and the like.
  • roof decks frequently are made of structural concrete or metal decking covered with a rigid hardboard, sometimes metal-covered, and covered with a water-proof thermoplastic membrane applied to the outside surface of the concrete, rigid hardboard, or other substrate.
  • the membrane Inasmuch as the membrane is typically of the type customarily used on conventional non-green rooftops, and having a thickness of about 60 or more mils, the membrane must be applied to a very smooth and clean concrete, rigid hardboard, or other rigid surface. Irregularities in the smoothness of the outside surface of the substrate can produce perforations and punctures in the membrane which breach the water-tight integrity of the membrane. The same problem applies to foundation walls, tunnel structures, and the like, of structural concrete or masonry.
  • HRA hot rubberized asphalt
  • Cold-applied liquid products are also used in such applications, best installed in thinner coatings of around 60 mils thickness.
  • Such materials have fewer application issues inasmuch as they are applied at ambient temperatures, but often contain solvents which have odors and repugnant smells, or, when spray- applied, produce air-borne particulates that create a potential hazard for installers, site workers, and building occupants.
  • an object of the invention is to provide a waterproofing membrane for application to a surface of a structure to provide waterproofing and moisture protection to the structure, and which does not provide a medium for lateral migration of water therethrough.
  • a further object of the invention is to provide a method for making a waterproof membrane for application to a surface of a structure .
  • a further object of the invention is to provide a roof/wall, foundation or tunnel structure providing watertight integrity.
  • a still further object of the invention is to provide a method for waterproofing a roof and/or a wall, foundation or tunnel structure.
  • a still further object of the invention is to provide a method for increasing puncture resistance of a thermoplastic membrane for use in water proofing subterranean structures and surfaces .
  • a feature of the present invention is the provision of a membrane for application to a surface of a structure to provide waterproofing and moisture protection to the structure.
  • the membrane includes an outer surface layer of thermoplastic material, a layer of cushion material laminated to, or fused to, or adhered to, an inner surface of the layer of thermoplastic material, a pressure sensitive adhesive bound to a side of the cushion material remote from the thermoplastic layer, and a release liner removably mounted on the remote side of the pressure sensitive adhesive.
  • a method for making a waterproof membrane comprising the steps of providing a layer of cushion material, bonding a layer of waterproof thermoplastic material to a first side of the layer of cushion material, affixing a layer of pressure sensitive adhesive to a second side of the layer of cushion material, and mounting a release liner on a side of the pressure sensitive adhesive remote from the cushion material.
  • a roof/wall, foundation or tunnel structure comprising a substantially rigid substrate, and a laminar membrane adhesively bonded to an outer surface of the substrate .
  • the membrane comprises an outer surface layer of thermoplastic material, a layer of cushion material bound to an inner surface of the layer of thermoplastic material, and a pressure sensitive adhesive bound to a side of the cushion material remote from the thermoplastic layer, and bound to the substrate .
  • a method for waterproofing a structural surface comprises the steps of providing a membrane for application to the surface, the membrane comprising an outer surface layer of thermoplastic material, a layer of cushion material laminated to, or fused to, or adhered to an inner surface of the layer of thermoplastic material, a pressure sensitive adhesive bound to a surface of the cushion material remote from the thermoplastic layer, and a release liner removably- mounted on the remote side of the pressure sensitive adhesive, removing the release liner to expose the pressure sensitive adhesive, and pressing the pressure sensitive adhesive against the structural surface to conform the layer of cushion material to the structural surface and bind the waterproofing membrane to the structural surface.
  • a method for increasing puncture resistance of a thermoplastic membrane for use in water proofing of subterranean structural substrates comprises bonding a layer of cushion material to the thermoplastic membrane, the cushion material comprising a cellular foam material, the cushion material being adapted to conform around minor irregularities in a surface of the structural substrate .
  • FIG. 1 is a diagrammatic sectional view of one form of a portion of a waterproofing membrane illustrative of an embodiment of the invention.
  • FIG. 2 is a diagrammatic sectional view of one form of a portion of a waterproofed roof/wall structure illustrative of a further embodiment of the invention.
  • the illustrative waterproofing membrane 10 includes an outer surface layer 12 of thermoplastic waterproof material, such as vinyl or polyolefin, bonded to a cellular foam backing layer 14 coated with a pressure sensitive adhesive 16.
  • the bonding of the backing layer 14 to the surface layer 12 may be accomplished by adhesive adhering, laminating, extrusion coating, heat sealing, gluing or taping, or the like.
  • a manually removable release liner 18 is mounted on an undersurface 17 of the pressure sensitive adhesive 16 prior to application of the membrane 10 to a roof/wall structure 20 (FIG. 2) .
  • the total composite membrane 10 may be about 120-140 mils or greater, in thickness, including the layer of waterproof material 12, which may be about 60 mils, or greater, in thickness, and the foam backing layer 14, which may be also about 60 mils, or greater, in thickness.
  • the layer 12 may be 0.015 - 0.080 inch in thickness
  • the backing layer 14 may be 0.015 - 0.375 inch in thickness, depending upon the particulars of a specific application or project.
  • the flexible foam backing 14 conforms around minor irregularities in the roof/wall structure 20.
  • the pressure sensitive adhesive 16 provides a strong bond between the membrane 10 and the roof/wall structure 20, even in the presence of water and concrete alkalis.
  • the structure 20 typically is a green roof and/or a plaza deck serving as a roof structure for a work space or habitat therebeneath. Because of the heavy loads associated with such applications, the supporting deck 20 is most often structural concrete. The external environment for such roofs is generally at least damp and often subject to wetness, including pooling or ponding.
  • the structure may also be a foundation wall or an earth sheltered structure or tunnel.
  • the membrane 10 accordingly is designed to protect the structure 20 from the effects of water infiltration which can lead to structural deterioration and interior water damage .
  • the outer surface layer 12 is a thermoplastic flexible sheet, made of vinyl or polyolefin, most commonly with an integral reinforcing material, such as glass fiber, polyester, nylon, or similar material.
  • the backing layer 14 preferably is a cellular foam, such as a non-absorptive closed cell foam.
  • the backing layer 14 is provided with the pressure sensitive adhesive 16 which is factory-applied and protected by the release liner 18 which is removed during application.
  • the laminar membrane 10 has been found to substantially increase puncture resistance, compared to standard prior art membranes which do not include a backing layer.
  • the surface layer 12 extends beyond a side edge 22 of the foam backing layer by about 2-4 inches to provide a selvedge 24.
  • the membrane 10 is shown in width-wise cross section in FIGS. 1 and 2 and is typically provided in rolls which are 6.5 - 12..0 feet in width with, additionally, the 2-4 inch selvedge 24 on one side.
  • the membrane sheets are disposed side-by-side with the foam backing layers 14 tightly abutting each other, and with the selvedge 24 overlapping the top of an adjoining membrane.
  • the selvedge 24 is bonded, as by adhesives, glues, tapes, hot-air or solvent welding, to the overlapped membrane surface layer to provide bonded seams which will not deteriorate in the presence of water, moisture, roots, micro-organisms, and the like.
  • a waterproofing membrane which can be applied directly to concrete and other substances.
  • the membrane finds particular application to green roof, plaza deck, planter, balcony and terrace substrates, foundation walls and tunnels, and is highly resistant to sub-grade environments of constant dampness, high alkalinity, exposure to plant roots, fungi, and bacterial organisms, as well as hydrostatic pressure, including ponded water conditions.
  • the membrane 10 is factory produced in its entirety. ⁇ There is no assembly of the membrane at the work site; even the adhesive 16 by which the membrane 10 is applied to the structural substrate 20, is provided on the membrane and protected until the point of attachment by a readily removable release liner 18.
  • the membrane is made by providing the cellular foam backing, or cushion layer 14, of a selected length and width suitable for subsequent packaging in roll form.
  • the layer of thermoplastic waterproof material 12 is bonded to a first side of the cushion layer 14.
  • the layer of pressure sensitive adhesive 16 is deposited on a second side of the cushion layer 14, and the release liner 18 is mounted on the pressure sensitive adhesive 16 to completely cover the adhesive.
  • the layer of thermoplastic waterproof material 12 extends beyond one side edge 22 of the cushion layer 14. to provide the aforementioned selvedge 24.
  • the assembled membrane components are then wound into roll form suitable for placing on a substrate and un-rolled on the substrate, while manually removing the release liner 18 to place the membrane 10, adhesive side down, on the surface of the substrate 20.
  • a roof/wall structure 30 (FIG. 2) including the substantially rigid substrate 20 and the waterproof membrane 10 adhesively bonded to an outer surface of the substrate, the membrane including the surface layer 12 of thermoplastic waterproof material, the layer 14 of cushion material bound to the surface layer 12, and the pressure sensitive adhesive 16 bound to a side of the cushion material 14 remote from the layer of thermoplastic waterproof material 12, and bound to the substrate 20.
  • the waterproof membrane surface layer 12 is in the form of an elongated strip which extends sideways outwardly from the side edge 22 of the layer 14 of cushion material to form the selvedge 24 (FIG. 1) .
  • the roof/wall structure includes a plurality of the strips of membrane 10 disposed on the substrate 20 lengthwise side-by-side with side edges 22 of their respective cushion portions 14 abutting each other, and the selvedge 24 of one elongated strip overlapping, and heat welded or otherwise adhered to, the surface layer 12 of another elongated strip of like structure .
  • the roof/wall structure thus formed is highly resistant to the aforementioned sub-grade environments.
  • the method includes providing the waterproof membrane 10 for application to the surface, the membrane comprising the outer surface layer 12 of thermoplastic material, the layer of cushion material 14 bound to an inner surface of the layer of thermoplastic material, the pressure sensitive adhesive 16 bound to a side of the cushion material 14 remote from the surface layer 12 of thermoplastic material, and the release liner 18 removably mounted on the pressure sensitive adhesive 16.
  • the method includes the steps of removing the release liner 18 to expose the pressure sensitive adhesive 16, and pressing the pressure sensitive adhesive 16 against the structural surface to conform the layer of cushion material 14 to the structural surface 20 and bind the waterproofing membrane 10 to the structural surface .
  • the method for waterproofing the structural surface further comprises providing the layer 12 of thermoplastic material with a selvedge 24 comprising an extension of the outer layer of waterproof material 12 beyond a side edge 22 of the cellular foam cushion 14, preferably by about 2-4 inches.
  • the selvedge 24 overlaps a neighboring strip of membrane, while the cushion portion 14 of the two strips are in abutting relationship.
  • the selvedge is bound to the neighboring waterproof surface layer, as by heat-welding, adhesively, and the like.
  • thermoplastic membrane 10 for use in water proofing of structural substrates 20
  • the method comprising bonding a layer of cushion material 14 to the thermoplastic membrane 10, the cushion material 14 comprising a cellular foam material, the cushion material being adapted to conform around minor irregularities in a surface of the structural substrate 20.
  • a membrane for application to a surface of a structure to provide waterproof protection to the structure a method for making such a membrane, a roof/wall structure including the membrane, a method for waterproo'fing a structured surface using the aforementioned membrane, and a method for providing increased puncture resistance to a thermoplastic membrane .
  • the laminar structure described above is said to include a waterproof thermoplastic layer, and while such is regarded as a preferred embodiment, it will be apparent to those skilled in the art that a waterproof elastomeric material could also serve as a waterproof layer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Adhesive Tapes (AREA)

Abstract

L'invention concerne une membrane qui s'applique sur une surface d'une structure pour conférer à celle-ci une étanchéité à l'eau. La membrane comprend une couche de surface en matière thermoplastique ou élastomère, une couche de matière coussin scellée à la couche de matière thermoplastique ou élastomère, un adhésif autocollant lié à l'autre face de la matière coussin et une feuille antiadhésive placée amovible sur l'adhésif autocollant.
EP07839853A 2006-11-02 2007-10-30 Membrane d'étanchéité à l'eau autocollante Withdrawn EP2091726A4 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US85615506P 2006-11-02 2006-11-02
US93478507P 2007-06-15 2007-06-15
US11/881,245 US20080104917A1 (en) 2006-11-02 2007-07-26 Self-adhering waterproofing membrane
PCT/US2007/022938 WO2008057343A2 (fr) 2006-11-02 2007-10-30 Membrane d'étanchéité à l'eau autocollante

Publications (2)

Publication Number Publication Date
EP2091726A2 true EP2091726A2 (fr) 2009-08-26
EP2091726A4 EP2091726A4 (fr) 2012-08-01

Family

ID=40886601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07839853A Withdrawn EP2091726A4 (fr) 2006-11-02 2007-10-30 Membrane d'étanchéité à l'eau autocollante

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Country Link
EP (1) EP2091726A4 (fr)
CA (1) CA2598886C (fr)
WO (1) WO2008057343A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6787653B2 (ja) * 2015-06-05 2020-11-18 スリーエム イノベイティブ プロパティズ カンパニー セメント系材料の表面を覆蓋する粘着シート、及びセメント系構造物の製造方法
EP3802123A4 (fr) * 2018-06-04 2022-03-09 GCP Applied Technologies Inc. Membrane d'imperméabilisation à l'eau résistant à la gueule de poisson

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2105256A (en) * 1981-09-04 1983-03-23 Coal Ind Laminated sheet
US20040244315A1 (en) * 2002-11-01 2004-12-09 Rust Paul Raymond Roofing system and self-bridging tape for modular building construction roof joints
WO2006111582A2 (fr) * 2005-04-22 2006-10-26 Sika Technology Ag Procede et feuille d'impermeabilisation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030054127A1 (en) * 1998-02-18 2003-03-20 Raphael Heifetz Sealing sheet assembly for construction surfaces and methods of making and applying same
US6235365B1 (en) * 1998-12-18 2001-05-22 W. R. Grace & Co.-Conn. Waterproofing membrane having release sheet cutting system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2105256A (en) * 1981-09-04 1983-03-23 Coal Ind Laminated sheet
US20040244315A1 (en) * 2002-11-01 2004-12-09 Rust Paul Raymond Roofing system and self-bridging tape for modular building construction roof joints
WO2006111582A2 (fr) * 2005-04-22 2006-10-26 Sika Technology Ag Procede et feuille d'impermeabilisation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2008057343A2 *

Also Published As

Publication number Publication date
WO2008057343A3 (fr) 2008-07-17
WO2008057343A2 (fr) 2008-05-15
CA2598886A1 (fr) 2008-05-02
CA2598886C (fr) 2012-03-20
EP2091726A4 (fr) 2012-08-01

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