EP0169308B1 - Membrane en matière plastique pour sous-toiture - Google Patents

Membrane en matière plastique pour sous-toiture Download PDF

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Publication number
EP0169308B1
EP0169308B1 EP85103831A EP85103831A EP0169308B1 EP 0169308 B1 EP0169308 B1 EP 0169308B1 EP 85103831 A EP85103831 A EP 85103831A EP 85103831 A EP85103831 A EP 85103831A EP 0169308 B1 EP0169308 B1 EP 0169308B1
Authority
EP
European Patent Office
Prior art keywords
rafters
roof
sheeting
roof lining
polyurethane
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
Application number
EP85103831A
Other languages
German (de)
English (en)
Other versions
EP0169308A3 (en
EP0169308A2 (fr
Inventor
Dieter Dipl.-Ing. Jablonka
Klaus Dipl.-Ing. Urban
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.)
Ewald Dorken & Co KG GmbH
EWALD DORKEN GmbH and Co KG
Original Assignee
Ewald Dorken & Co KG GmbH
EWALD DORKEN GmbH and Co KG
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 Ewald Dorken & Co KG GmbH, EWALD DORKEN GmbH and Co KG filed Critical Ewald Dorken & Co KG GmbH
Priority to AT85103831T priority Critical patent/ATE44066T1/de
Publication of EP0169308A2 publication Critical patent/EP0169308A2/fr
Publication of EP0169308A3 publication Critical patent/EP0169308A3/de
Application granted granted Critical
Publication of EP0169308B1 publication Critical patent/EP0169308B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D12/00—Non-structural supports for roofing materials, e.g. battens, boards
    • E04D12/002—Sheets of flexible material, e.g. roofing tile underlay

Definitions

  • the invention relates to a plastic roof membrane in sheet form for pitched roofs and the like, the roof consisting of beams and rafters, arranged between the rafters thermal insulation material, the rafters and the thermal insulation material by a vapor barrier on the roof inside and the rafters through the roof membrane on the outside of the roof are covered, on which a counter battens is arranged to form a ventilation space and a roof battens, which serves as a support for the roof covering.
  • a known underlayment is formed from a PE film.
  • This well-known roofing membrane is used to protect the roof construction parts underneath and the rooms in the loft conversion from flying snow, rain, dust and soot.
  • the function of this sarking membrane essentially depends on the ventilation of the roof working properly.
  • the ventilation of the roof is of increasing importance, because roof rooms are increasingly being expanded for residential purposes and this results in more usage moisture and new building moisture, which is also driven out by more powerful heating systems.
  • Thin aluminum foils on paper also in one piece with the thermal insulation, are often provided as a vapor barrier.
  • the often inadequate processing by the craftsman or the self-installing handyman means that the function cannot be performed at all or only inadequately, because the thin aluminum foil is pierced or is not properly overlapped at the joints.
  • the planners and structural engineers would have to provide a higher rafter and thus a larger free cross-section so that there is still space for ventilation.
  • the planner especially in the eaves area, would have to provide supply air openings.
  • the perforation has the disadvantage that dripping water can enter capillary from the outside, which means that the desired effect cannot be achieved.
  • the water-repellent finish protects the construction parts and the rooms underneath from thawing snow and rain, as well as dust and soot, while the water vapor permeability of the material should also enable vapor pressure equalization between inside and outside.
  • Such a sarking membrane should therefore also allow direct laying on the thermal insulation.
  • the invention has for its object to provide a sarking membrane of the type mentioned, which is so open to diffusion that there is no need for ventilation, even if the vapor barrier is inadequate, which can be placed directly on the thermal insulation and thus the entire rafter height usable for the thermal insulation, which is also designed so that it largely prevents the formation of dripping water or the like in the event of impact loads, for example when driving out the new building moisture, and which with a significantly lower use of material, namely fleece and coating, a high Has strength and enables large-scale production.
  • the invention proposes that the underlay consists of a polyurethane film which is covered on one side, in the installed position on the inside of the building, with a non-woven layer which is covered with the polyurethane film lie is intimately connected and is largely exposed on the side facing away from this.
  • the term “largely exposed” should be understood to mean that the nonwoven layer is not completely embedded in the PU film, but rather the PU film only lies on one side of the nonwoven.
  • the combination according to the invention of a water-vapor-permeable polyurethane film with a non-woven layer provided by the customer achieves a certain buffer effect, which makes it possible to absorb and store water vapor to a sufficient extent even in the event of shock loads, without this excess water vapor condensing out.
  • the fleece layer thus represents a moisture accumulator that is shielded from the outside by a waterproof, but outstandingly vapor-permeable coating.
  • this sarking membrane according to the invention can also be placed directly on the thermal insulation, it still being irrelevant whether the vapor barrier is provided properly or at all.
  • a particular advantage of the underlay according to the invention can also be seen in the fact that the nonwoven layer serves as a carrier for the film-like PU coating, as a result of which the PU film layer and the nonwoven layer can be made extremely thin, which is advantageous for reasons of material costs.
  • the PU film layer By integrating the network, it is possible to make the PU film layer so thin that it can only be designed for its function with regard to external shielding and water vapor permeability, while the fleece layer is also only to be designed for its desired storage volume.
  • the network practically takes on the supporting function of this combined roofing membrane.
  • the underlay 1 consists of a polyurethane film 2, a mesh 3 made of plastic and a non-woven layer 4, for example a random fiber fleece. In the installed position, the fleece layer 3 is arranged on the inside of the building.
  • the PU film 2 is applied on one side to a nonwoven layer 4 by extrusion and is connected to it in a material-locking manner and without connecting aids.
  • the mesh 3 is arranged between the PU film 2 and the nonwoven layer 4. During manufacture, the mesh 3 is placed on the thin fleece layer 4 and the PU film 2 is extruded onto this layer, whereby it forms an intimate connection with the fleece layer 4 and the mesh 3 is held by the connected layers 2 and 4.
  • the thin PU film 2 is permeable to water vapor, but impermeable to solids and liquids.
  • the fleece layer 4 serves as a liquid store for liquid which temporarily condenses out of the water vapor, which is stored by the fleece layer 4 and is slowly released through the PU film 2 until a vapor pressure equalization is achieved.
  • the fleece layer 4 can be dimensioned to be thinner or thicker in accordance with its desired storage capacity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
  • Prostheses (AREA)
  • Tents Or Canopies (AREA)

Claims (5)

1. Membrane en matière plastique de sous-toiture pour toits en pente et analogues dans lesquels le toit est constitué de poutres et de chevrons, un isolant est disposé entre les chevrons, les chevrons et l'isolant sont recouverts, du côté interne du toit, d'un pare-vapeur et, du côté extérieur du toit, les chevrons sont recouverts d'une sous-toiture sur laquelle est disposé un contre- lattis avec formation d'un espace d'aération, ainsi qu'un lattis qui sert de support à la couverture du toit, caractérisé en ce que la sous-toiture (1) consiste en une membrane en polyuréthane (2) qui est recouverte du côté tourné vers la construction, en position de montage, d'un voile (4) relié intimement à la membrane en polyuréthane (2), et dégagé sur toute la largeur, du côté opposé à celle-ci.
2. Sous-toiture selon la revendication 1, caractérisée en ce que la membrane en polyuréthane (2) est renforcée par un réseau moulé (3).
3. Sous-toiture selon les revendications 1 et 2, caractérisée en ce que la feuille en polyuréthane (2) est disposée d'un côté sur le voile (4), par exemple un voile polyéthylène, et est y est reliée par liaison de la matière, sans agent de liaison, avec interposition du réseau (3) en matière plastique (par exemple du polyéthylène), entre la feuille en polyuréthane (2) et le voile (4).
4. Sous-toiture selon une des revendications 1 à 3, caractérisée en ce que le poids de la sous-toiture (1) est de 100 g/m2 environ avec le réseau (3).
EP85103831A 1984-07-13 1985-03-29 Membrane en matière plastique pour sous-toiture Expired EP0169308B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85103831T ATE44066T1 (de) 1984-07-13 1985-03-29 Unterspannbahn aus kunststoff.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3425794 1984-07-13
DE3425794A DE3425794A1 (de) 1984-07-13 1984-07-13 Unterspannbahn aus kunststoff

Publications (3)

Publication Number Publication Date
EP0169308A2 EP0169308A2 (fr) 1986-01-29
EP0169308A3 EP0169308A3 (en) 1987-03-04
EP0169308B1 true EP0169308B1 (fr) 1989-06-14

Family

ID=6240521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103831A Expired EP0169308B1 (fr) 1984-07-13 1985-03-29 Membrane en matière plastique pour sous-toiture

Country Status (3)

Country Link
EP (1) EP0169308B1 (fr)
AT (1) ATE44066T1 (fr)
DE (2) DE3425794A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0708212A1 (fr) 1994-10-20 1996-04-24 Ewald Dörken Ag Membrane de sous-toiture, en particulier pour toits inclinés isolés thermiquement
WO1997030244A2 (fr) * 1996-02-13 1997-08-21 Klöber, Johannes Bande sous-jacente a pouvoir de diffusion pour toiture et son procede de fabrication
DE19725451A1 (de) * 1997-06-16 1998-12-24 Caplast Kunststoffverarbeitung Verbund aus Trägerschicht und geschäumter Kunststoffschicht, insbesondere für Unterspannbahnen
WO1999055983A1 (fr) 1998-04-29 1999-11-04 Lafarge Braas Roofing Accessories Gmbh & Co. Materiau plat etanche a l'eau et permeable a la vapeur d'eau
DE102008033891A1 (de) 2008-07-18 2010-02-04 Ipt Gmbh & Co. Kg Grundmaterial mit mehrschichtig, wenigstens einseitig aufgebrachter, wässriger, mit Füll- und Zuschlagstoffen versehener, lösemittelfreier Beschichtung auf Acrylatbasis, deren Zusammensetzung/en, Herstellung und Verwendung

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3914041C1 (en) * 1989-04-28 1990-07-12 Paul Bauder Gmbh & Co, 7000 Stuttgart, De Under-trussing web used in roof constructions - has hydrophilic nonwoven laid on bottom of web and having carrier coated with bitumen on both sides
DE4008043A1 (de) * 1990-03-14 1991-09-19 Hoechst Ag Traegerbahn fuer dachunterspannbahnen
GB9210229D0 (en) † 1992-05-13 1992-07-01 Don & Low Holdings Ltd Improvements in and relating to liquid impermeable and liquid vapour permeable laminates
EP0700779A3 (fr) 1994-08-10 1996-06-26 Von Borries Horst Bandes perméables pour la construction et procédé pour leurs fabrications
DE19504017A1 (de) * 1995-02-07 1996-08-08 Borries Horst Von Diffusionsoffene Baufolie und Verfahren zu ihrer Herstellung
DE4442380A1 (de) 1994-11-29 1996-05-30 Wolff Walsrode Ag Wasserdichte und atmungsaktive Flächengebilde aus Harzmischungen thermoplastischer Polyurethane
WO1996018781A1 (fr) * 1994-12-12 1996-06-20 Klöber, Johannes Feuille de diffusion, notamment sous la forme d'une feuille armee de sous-couche pour toits
WO1996037668A1 (fr) * 1995-05-22 1996-11-28 Akzo Nobel N.V. Barriere d'air et son utilisation dans des toitures
AU5894896A (en) * 1995-05-22 1996-12-11 Akzo Nobel N.V. Insulating subfloor web for roofs and its use
DE29511308U1 (de) * 1995-07-13 1995-10-26 Christian Heinrich Sandler GmbH & Co. KG, 95126 Schwarzenbach a d Saale Wasserdampfdurchlässige Dachunterspannbahn
EP0767284B1 (fr) * 1995-10-07 1999-07-28 Paul Bauder GmbH & Co. Membrane et support de sous-toiture perméable à la vapeur
DE29602475U1 (de) * 1996-02-13 1996-04-18 Spielau, Paul, Dipl.-Chem. Dr., 53844 Troisdorf Diffusionsoffene Dachunterspannbahn
DE19716583A1 (de) * 1997-04-21 1998-10-22 Kloeber Johannes Diffusionsfolie, insbesondere in Form einer Unterspannbahn für Dächer
DE19823419A1 (de) * 1998-05-26 1999-12-02 Kloeber Johannes Zwischen-Sparren-Dämmsystem
DE10012997B4 (de) * 2000-03-16 2008-09-18 Metallhandelgesellschaft Wanzleben mbH - mewa-, Anordnung einer Kondensat-Absorptions-Matte
DE102005035246A1 (de) 2005-07-25 2007-02-01 Ewald Dörken Ag Verfahren zur Herstellung einer Bahn
DE102006000655A1 (de) * 2006-01-03 2007-07-05 Matthias Chachulski Dachkonstruktion
DE102006044754A1 (de) 2006-08-18 2008-02-21 Ewald Dörken Ag Bahn und Klebeband
DE102012111168A1 (de) 2012-11-20 2014-05-22 Monier Roofing Components Gmbh Dachunterspannbahn mit Gewebestreifengitter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE951394C (de) * 1949-07-19 1956-10-25 Papierfabrik Palm O H G Wandueberzug fuer Raeume mit wechselnder Luftfeuchtigkeit
DE1792213U (de) * 1959-01-13 1959-07-16 Wilhelm Dr Fux Folienbahn aus kunststoff in schichtform.
DE6606037U (de) * 1968-01-03 1970-07-30 Bemberg Ag Verbundfolie mit einer aus einem gitterfoermigen flaechengebilde bestehenden verstaerkungseinlage
DE1945686A1 (de) * 1969-09-10 1971-03-18 Metallgesellschaft Ag Dachunterspannbahn
DE7604764U1 (de) * 1976-02-18 1977-07-07 Hildener Filz Produktion Gmbh & Co Kg, 4010 Hilden Matte zur aufnahme von oel
NO780771L (no) * 1978-03-06 1979-09-07 Platon As Undertaksduk.
DE3118468A1 (de) * 1981-05-09 1982-11-25 Fa.Hans Klöber, 5828 Ennepetal Anordnung an mit einer folienartigen unterspannbahn ausgestatteten pfannenbestueckten daechern
DE3145547C2 (de) * 1981-11-17 1985-02-07 Christian Heinrich Sandler GmbH & Co KG, 8676 Schwarzenbach Matte zur Aufnahme von organischen Flüssigkeiten, vorzugsweise Öl

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0708212A1 (fr) 1994-10-20 1996-04-24 Ewald Dörken Ag Membrane de sous-toiture, en particulier pour toits inclinés isolés thermiquement
WO1997030244A2 (fr) * 1996-02-13 1997-08-21 Klöber, Johannes Bande sous-jacente a pouvoir de diffusion pour toiture et son procede de fabrication
DE19725451A1 (de) * 1997-06-16 1998-12-24 Caplast Kunststoffverarbeitung Verbund aus Trägerschicht und geschäumter Kunststoffschicht, insbesondere für Unterspannbahnen
WO1999055983A1 (fr) 1998-04-29 1999-11-04 Lafarge Braas Roofing Accessories Gmbh & Co. Materiau plat etanche a l'eau et permeable a la vapeur d'eau
DE102008033891A1 (de) 2008-07-18 2010-02-04 Ipt Gmbh & Co. Kg Grundmaterial mit mehrschichtig, wenigstens einseitig aufgebrachter, wässriger, mit Füll- und Zuschlagstoffen versehener, lösemittelfreier Beschichtung auf Acrylatbasis, deren Zusammensetzung/en, Herstellung und Verwendung
DE202008017740U1 (de) 2008-07-18 2010-05-27 Ipt Gmbh & Co. Kg Grundmaterial mit mehrschichtig, wenigstens einseitig aufgebrachter, wässriger, mit Füll- und Zuschlagstoffen versehener, lösemittelfreier Beschichtung auf Acrylatbasis, deren Zusammensetzung/en, Herstellung und Verwendung

Also Published As

Publication number Publication date
DE3571057D1 (en) 1989-07-20
EP0169308A3 (en) 1987-03-04
EP0169308A2 (fr) 1986-01-29
ATE44066T1 (de) 1989-06-15
DE3425794A1 (de) 1986-01-23

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