EP0399952B1 - Bande pour étancher une construction - Google Patents

Bande pour étancher une construction Download PDF

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Publication number
EP0399952B1
EP0399952B1 EP90810361A EP90810361A EP0399952B1 EP 0399952 B1 EP0399952 B1 EP 0399952B1 EP 90810361 A EP90810361 A EP 90810361A EP 90810361 A EP90810361 A EP 90810361A EP 0399952 B1 EP0399952 B1 EP 0399952B1
Authority
EP
European Patent Office
Prior art keywords
layer
strip according
foam
strip
support layer
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.)
Expired - Lifetime
Application number
EP90810361A
Other languages
German (de)
English (en)
Other versions
EP0399952A1 (fr
Inventor
Peter Schneider
Werner Spaniol
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.)
Huber and Suhner AG
Original Assignee
Huber and Suhner 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
Application filed by Huber and Suhner AG filed Critical Huber and Suhner AG
Priority to AT90810361T priority Critical patent/ATE88778T1/de
Publication of EP0399952A1 publication Critical patent/EP0399952A1/fr
Application granted granted Critical
Publication of EP0399952B1 publication Critical patent/EP0399952B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6809—Reverse side strips

Definitions

  • the invention relates to a permanently elastic web for sealing a building and the use of a material web according to claim 15.
  • German utility model G 81 34 333 it is known to provide permanently elastic tapes for joints with a stretchable fabric.
  • the fabric is embedded just below the surface and is used, among other things, to protect the tape against mechanical stress, e.g. to make them more resistant when walking.
  • a composite seal which consists of two elastic materials without a carrier layer.
  • One of the layers is impermeable to water and the other layer is permeable to water.
  • the overall arrangement contains a number of water passages, so that a seal is created in which water is passed through a filter.
  • the purpose of this foam combination is that one of the foam layers can rot in a targeted manner.
  • vapor barrier For sealing larger openings, especially in the area of pitched roofs, material webs with different characteristics are mainly used today: The sealing on the inside is carried out by means of a vapor barrier. Usually polyolefin (polyethylene) foils are applied under thermal insulation materials. The diffusion resistance of such vapor barriers is approximately S D ⁇ 130 m.
  • perforated sheets can be welded with the usual methods (hot air or heating wedge). Such a weldability is important with regard to the reliable and permanent connection of several webs.
  • the perforation of the webs is, on the one hand, quite complex and, on the other hand, there are only selective vapor passages in the perforation area, which can lead to condensation in the event of more steam.
  • the object of the invention is to avoid the disadvantages of the known, in particular to propose a web for sealing a building that is simple and economical to manufacture has sufficient mechanical strength for the intended use, is waterproof and still avoids problems caused by trapped water vapor.
  • the invention deliberately and surprisingly turns away from the prior art: Instead of the mechanically stressable, permanently elastic tape used for sealing tapes, e.g. according to DE-GM 81 34 333 is still provided on the surface with a fabric for protection, the invention proposes the use of a sheet of open-cell foam. It has been shown in accordance with the invention that open-cell foam is outstandingly suitable as a covering sheet: on the one hand, the foam layer ensures sufficient water-tightness, e.g. against rainwater. On the other hand, the open-cell structure allows optimal steam passage, so that moisture that has penetrated can quickly escape through the web. In the area of the connection, especially the gluing to the structure, the web has a carrier layer, which ensures the required strength.
  • the carrier layer can also optimally be used as a substrate during manufacture, i.e. be used when foaming the foam layer.
  • the backing layer takes on mechanical forces when welding or gluing and e.g. even if the sealed opening changes due to expansion, so that the foam layer is protected from destruction.
  • the web can be welded using thermoplastic material for the foam layer.
  • a textile backing layer particularly a knitted fabric or a nonwoven
  • the fleece or the knitted fabric can be produced in such a way that the stretchability, especially the stretching direction of the backing layer, roughly matches the stretchability of the foam layer. Before the foam layer can tear under load, the backing layer absorbs the mechanical forces.
  • a fabric, a fleece, a paper layer or another carrier material can also be used.
  • the web according to the invention can be produced particularly advantageously if a nonwoven is used as the carrier layer, which is immersed in a flowable, prepared thermoplastic material and thereby coated.
  • Foamed PVC is particularly suitable as a foam layer with regard to economical production, diffusion and durability.
  • the open-cell structure of the foam can be achieved particularly reliably using a mechanical gassing process.
  • Latex made of polyurethane or acrylate can be used advantageously.
  • the diffusion resistance (the diffusion-equivalent air layer thickness) S D is calculated from ⁇ xd, where ⁇ is the diffusion resistance number and d is the material thickness in m.
  • Foam layers with good mechanical properties with diffusion properties according to the invention can be produced if the foam layer is 0.4 to 1.3 mm, preferably 0.5 to 0.9 mm thick.
  • a foam layer 2 made of an open-cell PVC foam is applied to a carrier layer 1 made of a knitted fabric made of synthetic fibers.
  • the carrier layer 1 is rot-proof due to the synthetic fiber material used. In addition, it is vapor-permeable in every respect, so that it forms practically no resistance to water vapor passing through.
  • the carrier layer 1 is approximately 0.25 to 0.50 mm thick.
  • the foam layer 2 is embedded in the surface of the knitted fabric of the carrier layer 1.
  • the total thickness of the tape is preferably about 0.75 mm.
  • the PVC foam is open-celled with a size of the individual cells of approximately 0.002 mm to 0.1 mm.
  • joint edges are used to seal structural joints coated with an adhesive or contact adhesive, whereupon the permanently elastic tape with the carrier layer 1 is applied to the joint area and glued there.
  • FIG. 2 shows a modified exemplary embodiment, in which a permanently elastic layer 3 was already applied to the underside of the carrier layer 1 during the production process.
  • the tape is supplied ready for gluing and there is no need to apply glue.
  • the tape with the backing layer 1 is glued to the two structural parts 4 and 5, so that the tape is held in the area of the joint 6 by the backing layer 1.
  • Mechanical stress e.g. by changing the distance of the building parts 4 and 5 due to thermal expansion, is absorbed by the carrier layer 1.
  • the carrier layer 1 Due to the knitted fabric used, the carrier layer 1 is sufficiently elastic. Water vapor in the joint 6 can easily pass through the carrier layer 1 and the open-cell foam layer 2, so that the joint 6 is reliably dehumidified.
  • the foam density of the PVC foam of the foam layer 2 according to FIG. 2 is 0.60 to 0.90 g / ml, which results in excellent diffusion properties with good mechanical strength and reliable watertightness.
  • FIG. 3 shows a permanently elastic tape with backing layer 1 and foam layer 2 analogous to the exemplary embodiment according to FIG. 2.
  • Two adhesive layers 3 are applied at intervals on the underside of the backing layer 1.
  • Each of the layers 3 is covered by a cover strip 7, which prevents the layer 3 from drying out or losing its adhesive properties. Only immediately before application to structural parts 4 and 5 is the strip 7 removed from each of the adhesive layers 3.
  • FIG. 4 shows the schematic representation of an under-roof sealing membrane in cross section.
  • a glass fleece is provided as carrier layer 1, which has been coated by dipping with a foam layer 2 made of open-cell EVA foam.
  • a scrim 1 a or a fabric made of synthetic fibers is provided, which is attached to the fleece 1 on one side. It can be seen from FIG. 5 that the scrim 1 a can absorb tensile stresses and thus relieves the load on the fleece 1.
  • the scrim 1 a offers practically no resistance to the passage of steam.
  • the fleece 1 is also extremely breathable and also elastic.
  • the glass fleece is also rot-proof and, from this point of view, also ideally suited for the application.
  • the scrim or knitted fabric 1 a can be placed on the fleece 1 or otherwise connected to it. E.g. it could be sewn on. It would also be advantageous to design the backing layer 1 as a knitted fabric or as a knitted fabric (e.g. Malimo technique).
  • the carrier layer 1 can also be a nonwoven made of natural fibers, e.g. Cotton, cellulose or a mixture of natural fibers and synthetic fibers or with a reinforcing fabric or scrim made of synthetic fibers.
  • natural fibers e.g. Cotton, cellulose or a mixture of natural fibers and synthetic fibers or with a reinforcing fabric or scrim made of synthetic fibers.
  • the open-cell foam layer 2 is produced by foaming mechanically incorporated air (whipped foam method).
  • foaming agent foaming in which a blowing agent gas is split off in the heat, which leads to predominantly closed foam structures, foamed structures with very high open cells are achieved with mechanically incorporated air.
  • the open-celled whipped foam can also be applied to the carrier substrate by coating or brushing instead of by dipping.
  • foams can also be made from latices on a different thermoplastic basis, e.g. B. from polymers of urethanes, acrylates or copolymers of ethylene (EVA) and mixtures thereof.
  • the new sheet can be made particularly watertight or particularly reliably watertight if a lacquer or impregnation is provided on the surface at least on one side (on the outside).
  • Polymers of VCVA copolymers, acrylate, urethane, silicones or ethylene copolymers as well as their mixtures have proven successful.
  • blow foams in the various examples have enclosed air bubbles in the order of magnitude of 0.002 mm to 0.30 mm.
  • blow foams were produced in a dynamic foam machine of the type AIR-O-Matic, S1500.
  • joint tapes according to FIGS. 1-3 can also be made wider in order to be used for sealing steep roofs or walls. It is also provided that the sheets according to FIGS. 4 and 5 are designed as narrow strips for sealing joints.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Building Environments (AREA)

Claims (15)

  1. Bande pour rendre une construction (6) étanche, caractérisée par une couche de support (1) pour l'absorption de forces de traction en cas de contrainte mécanique et, appliquée sur celle-ci, une couche de produit alvéolaire (2) étanche à l'eau présentant une structure à alvéoles ouvertes et une valeur de résistance à la diffusion (SD) inférieure ou égale à 1,3 m.
  2. Bande selon la revendication 1, caractérisée en ce que la couche de support (1) consiste en un produit plan textile.
  3. Bande selon la revendication 2, caractérisée en ce que la couche de support (1) consiste en un tissu à mailles.
  4. Bande selon la revendication 3, caractérisée en ce que la couche de support (1) consiste en un non-tissé.
  5. Bande selon la revendication 4, caractérisée en ce que le non-tissé contient des fibres de verre.
  6. Bande selon la revendication 4, caractérisée en ce que le non-tissé contient des fibres naturelles de coton et/ou de la laine artificielle.
  7. Bande selon l'une des revendications 4 à 6, caractérisée en ce que le non-tissé est renforcé par une structure ou un tissu de fibres synthétiques.
  8. Bande selon l'une des revendications précédentes, caractérisée en ce que la couche de produit alvéolaire (2) est une mousse de PVC à alvéoles ouvertes.
  9. Bande selon la revendication 8, caractérisée en ce que la couche de produit à alvéoles ouvertes (2) est fabriqué à partir d'un latex en matériau thermoplastique.
  10. Bande selon la revendication 9, caractérisée en ce que le matériau thermoplastique contient des polymères d'uréthanne et/ou d'acrylates et/ou des copolymères d'éthylène (EVA) ou de chlorure de vinyle (VSVAC).
  11. Bande selon l'une des revendications précédentes, caractérisée en ce que la couche de produit alvéolaire (2) fait 0,4 à 1,3 mm d'épaisseur.
  12. Bande selon la revendication 11, caractérisée en ce que le produit alvéolaire (2) fait 0,5 à 0,9 mm d'épaisseur.
  13. Bande selon l'une des revendications précédentes, caractérisée en ce qu'il est prévu, sur la face de la couche de support (1) opposée à la couche de produit alvéolaire (2), au moins par sections, une couche de colle (3) destinée à relier la bande et les éléments (5, 6) de la construction.
  14. Bande selon l'une des revendications précédentes, caractérisée en ce qu'elle est pourvue au moins unilatéralement d'un revêtement hydrophobe.
  15. Utilisation d'une bande de matériau comportant une couche de support, notamment un produit plan textile et, sur celle-ci, une couche de produit à alvéoles ouvertes étanche à l'eau, pour rendre des constructions étanches à la pénétration d'eau, la couche de produit alvéolaire présentant une valeur de résistance à la diffusion (SD) inférieure ou égale à 1,3 m.
EP90810361A 1989-05-25 1990-05-16 Bande pour étancher une construction Expired - Lifetime EP0399952B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90810361T ATE88778T1 (de) 1989-05-25 1990-05-16 Bahn zum abdichten eines bauwerks.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1960/89A CH678871A5 (fr) 1989-05-25 1989-05-25
CH1960/89 1989-05-25

Publications (2)

Publication Number Publication Date
EP0399952A1 EP0399952A1 (fr) 1990-11-28
EP0399952B1 true EP0399952B1 (fr) 1993-04-28

Family

ID=4222626

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810361A Expired - Lifetime EP0399952B1 (fr) 1989-05-25 1990-05-16 Bande pour étancher une construction

Country Status (4)

Country Link
EP (1) EP0399952B1 (fr)
AT (1) ATE88778T1 (fr)
CH (1) CH678871A5 (fr)
DE (1) DE59001290D1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5374477A (en) * 1993-02-09 1994-12-20 Minnesota Mining And Manufacturing Company Barrier laminate and method for sealing gaps in building construction
US5733824A (en) * 1995-06-07 1998-03-31 Bay Mills Ltd Hand-tearable moisture barrier laminate
EP1088944A3 (fr) * 1999-09-29 2002-01-23 Uzin Utz Aktiengesellschaft Joint d'étanchéité
DE20306689U1 (de) * 2003-04-29 2004-09-02 Iso-Chemie Gmbh Dichtungsband
DE20306687U1 (de) * 2003-04-29 2004-09-02 Iso-Chemie Gmbh Dichtungsband
DE102004059812A1 (de) * 2004-12-10 2006-06-29 Ewald Dörken Ag Dampfbremse zum Einsatz in Gebäuden
GB2444121A (en) * 2006-12-08 2008-05-28 Robert Edward Bell Joint sealing tape
AT518547B1 (de) * 2016-11-17 2017-11-15 Horst Dipl Ing Resch Vorratsrolle für ein Dichtungsband
DE102018114770A1 (de) * 2018-06-20 2019-12-24 tremco illbruck GmbH Folieneinrichtung, insbesondere Fassadenfolie
CN110130508A (zh) * 2019-05-28 2019-08-16 五冶集团上海有限公司 一种水池伸缩缝的防水方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU54653A1 (fr) * 1967-10-11 1969-07-03
DE2702330C3 (de) * 1977-01-21 1983-12-08 Basf Farben + Fasern Ag, 2000 Hamburg Verfahren zum Herstellen einer großflächigen elastischen fugenlosen Beschichtung
DE8134333U1 (de) * 1981-11-25 1982-04-01 Kriszeleit, Johannes, 6370 Oberursel "dauerelastisches band zum abdichten von bauwerksfugen"
DE3150021C1 (de) * 1981-12-17 1987-11-12 Dynamit Nobel Ag, 5210 Troisdorf Mehrschichtige Dichtungsbahn aus elastomeren Kunststoffen und einer Verstaerkungseinlage
CH674749A5 (en) * 1988-01-28 1990-07-13 Huber+Suhner Ag Sealing tape - for structural joints made of specified material with adhesive strips

Also Published As

Publication number Publication date
ATE88778T1 (de) 1993-05-15
EP0399952A1 (fr) 1990-11-28
DE59001290D1 (de) 1993-06-03
CH678871A5 (fr) 1991-11-15

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