EP1669509B1 - Pare-vapeur, notamment pour des constructions de toiture - Google Patents

Pare-vapeur, notamment pour des constructions de toiture Download PDF

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Publication number
EP1669509B1
EP1669509B1 EP04029021A EP04029021A EP1669509B1 EP 1669509 B1 EP1669509 B1 EP 1669509B1 EP 04029021 A EP04029021 A EP 04029021A EP 04029021 A EP04029021 A EP 04029021A EP 1669509 B1 EP1669509 B1 EP 1669509B1
Authority
EP
European Patent Office
Prior art keywords
sheet
support layer
vapour barrier
diffusion
barrier according
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.)
Not-in-force
Application number
EP04029021A
Other languages
German (de)
English (en)
Other versions
EP1669509A1 (fr
Inventor
Gerhard Bauder
Fritz Ekkehard
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.)
Paul Bauder & Co KG GmbH
Original Assignee
Paul Bauder & Co KG GmbH
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 Paul Bauder & Co KG GmbH filed Critical Paul Bauder & Co KG GmbH
Priority to AT04029021T priority Critical patent/ATE389762T1/de
Priority to EP04029021A priority patent/EP1669509B1/fr
Priority to DE502004006605T priority patent/DE502004006605D1/de
Publication of EP1669509A1 publication Critical patent/EP1669509A1/fr
Application granted granted Critical
Publication of EP1669509B1 publication Critical patent/EP1669509B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 vapor barrier web, in particular for roof structures, with a diffusion-open carrier layer and with a diffusion-tight film resting thereon.
  • Such webs are used for example in the rehabilitation of pitched roofs, however, problems may arise when using such webs that due to the water vapor barrier properties moisture is accumulated, which can not escape.
  • a roofing membrane which has side by side diffusion-open and diffusion-tight portions which must be produced in a relatively complicated manner, that the vapor barrier path is constructed differently in the adjacent areas, for example by juxtaposing diffusion-open and diffusion-tight sections, which are then interconnected at their junctions must be, or by impregnation of the sections to be formed diffusion-tight.
  • a vapor barrier of the type described above in that the film and the carrier layer are diffusion-tight and permanently interconnected by in parallel and spaced connection strips, that at least some of the arranged between two adjacent connecting strips film sections of the diffusion-tight film of the support layer detachably rest on this and at their the connecting strip facing two sides have at least one parallel to the connecting strip running tear seam.
  • Such a configuration makes it possible to detach individual film sections between two adjacent connecting strips from the carrier layer and to remove them from the vapor barrier web by tearing open the two tear seams.
  • a diffusion-open area In the thus exposed area of the carrier layer thus creates a diffusion-open area, while in the areas of the carrier layer, which remain covered by the film, a diffusion-tight area is formed.
  • diffusion-open means a water-vapor-tightness of a diffusion-equivalent air layer thickness s d ⁇ 0.5 m
  • diffusion-tight means that the water vapor-tightness of the vapor barrier sheet corresponds to a diffusion-equivalent air layer thickness s d ⁇ 2m.
  • the tear seam is formed as a perforated seam.
  • the tear seam is formed as a linear weakening of the film, for example by a smaller layer thickness or by the use of less solid film material in the region of the tear seam.
  • the distance may be a few millimeters.
  • the tear seam is arranged in the region of the connecting strip.
  • the film is connected in the region of the connecting strip with the carrier layer in the manner of a separating weld, which forms the tear seam.
  • separating welds are known from the production of foil bag, by the welded connection of the film with the underlying carrier layer, the material of the film is weakened in the weld and can tear at train, the weld of the unstripped film section is maintained.
  • the detachable from the carrier layer film sections can rest loosely on the carrier layer.
  • the detachable from the carrier layer film sections on their support layer facing side are coated with an adhesive, which defines this at planar contact of the film portion of this on the carrier layer and which adheres to the film portion during detachment of the film portion of the carrier layer and is removed therewith from the carrier layer.
  • an adhesive which defines this at planar contact of the film portion of this on the carrier layer and which adheres to the film portion during detachment of the film portion of the carrier layer and is removed therewith from the carrier layer.
  • the connecting strips extend transversely to the longitudinal direction of a film web.
  • the distance between adjacent connecting strips can be between 5 cm and 30 cm, for example, a distance of about 10 cm is favorable.
  • the user then has the option of very finely adapting the diffusion properties of the vapor barrier sheet to the structural conditions, for example in the area of a rafter or in the area between two rafters.
  • the distances between adjacent connection strips can be the same everywhere along a film, it would also be possible to form different widths of film sections through different distances of the connection strips, if desired.
  • the diffusion-tight film may be, for example, a polyethylene film or a polypropylene film, preferably the thickness of these films is between 0.01 mm and 1 mm.
  • the carrier layer may be formed in a manner known per se as a diffusion-open carrier layer, for example, the carrier layer may have a carrier fleece with a microporous film applied thereto, optionally this layer structure may also be coated with a further nonwoven.
  • the carrier layer may have a carrier fleece with a microporous film applied thereto, optionally this layer structure may also be coated with a further nonwoven.
  • monolithic, vapor-permeable films which, if appropriate, carry a nonwoven on the upper side and / or lower side.
  • the vapor barrier sheet 1 shown in the drawing has a carrier layer 2, on which a film 3 is placed.
  • the support layer can be constructed differently, it is essential that this support layer is open to diffusion, so for example allows the diffusion of water vapor.
  • the carrier layer 2 may be constructed of a non-woven of polyester, polypropylene or polyethylene having a basis weight between 10 and 100 g / m 2 .
  • a microporous film of polyethylene or polypropylene may be applied with a basis weight of 10 to 50 g / m 2 .
  • This layer structure may additionally be covered by another nonwoven, which may also consist of polyester, polypropylene or polyethylene of similar basis weights.
  • the carrier layer 2 is formed by a monolithic, vapor-permeable film which consists wholly or partly of a hydrophilic thermoplastic polyurethane, a hydrophilic polyether-polyamide block copolymer or a hydrophilic polyester, with basis weights in the order of 10 to 100 g / m 2 . Also on this monolithic, vapor-permeable film can be placed at the top and / or bottom of a nonwoven of the type described.
  • any other structure of a carrier layer is possible, provided that this carrier layer is designed to be open to diffusion.
  • this film may for example consist of polyethylene or polypropylene and have a thickness between 0.01 and 1 mm.
  • the film 3 completely covers the carrier layer 2, the film 3 and the carrier layer 2 are connected to one another in parallel and spaced from each other connecting strip 4, which extend transversely to the longitudinal direction of the vapor barrier web 1.
  • connecting strips 4 are the film 3 and the Carrier layer 2 by interposition of an adhesive strip 5 connected to each other, the connection can also be made by welding the film 3 with the carrier layer 2 along the connecting strip 4.
  • the film 3 and the carrier layer 2 are diffusion-tightly connected to one another, between adjacent connecting strips 4, the film 3 lies flat on the carrier layer 2.
  • the film section 6 between two adjacent connecting strips 4 is shown arched, but this is only the better clarity of Dampfsperrbahn excessives shown so, in fact, the film section 6 lies flat against the support layer 2.
  • This system may be a loose system, but it is also possible to produce a detachable bond between the film section 6 and the carrier layer 2 in this area, for example by a pressure-sensitive adhesive applied to the film 3, which is removed when a film section 6 is removed from the carrier layer 2 dissolves from this and adheres to the film section 6.
  • the film sections 6 arranged between two adjacent connection strips 4 can be detached one by one from the carrier layer 2 and torn off.
  • the foil sections 6 have separating lines on their sides facing the connecting strip 4, in the exemplary embodiment of FIG. 1 These are formed for example by the formation of the connection between the film 3 and carrier layer 2 in the manner of a separating weld, as they are known from foil bags and similar items.
  • the films 3 can be separated, with the peeling off a film section 6 of the adjacent film section with the carrier layer 2 remains diffusion-tight.
  • the distances of the connecting strips 4 may be selected differently or the same, for example, they may be on the order of 10 cm, so that relatively narrow film sections 6 can be deducted. In this way it is possible for the publisher to adapt the size of the diffusion-open areas very precisely to the structural conditions, while the remaining vapor barrier web 1 remains diffusion-tight.
  • FIG. 2 is similar to that of the FIG. 1 Corresponding parts therefore bear the same reference numerals.
  • the connecting strip is not designed in the manner of a separating weld, but permanently executed.
  • tear seams 7, 8 extending parallel to the connecting strips 4 are arranged in the film sections 6, along which the film sections 6 can be torn off from the film remaining on the carrier layer.
  • the tear seams 7, 8 are relatively far away from the connecting strips 4, they can also be arranged closer to these.
  • connection strips 4 and the adhesive strips 5 are formed relatively wide. It would be quite possible, this narrower form, in particular, the tear seams can zoom very close to these very narrow connection strip.

Claims (13)

  1. Nappe pare-vapeur (1), en particulier pour des constructions de toiture, comprenant une couche porteuse (2) ouverte à la diffusion et une feuille (3) étanche la diffusion posée sur celle-ci, caractérisée en ce que la feuille (3) et la couche porteuse (2) sont reliées l'une à l'autre de manière étanche à la diffusion et durable par des rubans de liaison (4) qui s'étendent en parallèle et à la distance les uns des autres, en ce que quelques-uns au moins des tronçons de feuille (6), de la feuille étanche à la diffusion (3), agencés entre deux rubans de liaisons voisins (4) reposent sur la couche porteuse (2) en étant détachables vis-à-vis de celle-ci, et présentent sur leurs deux côtés tournés vers les rubans de liaison (4) au moins une couture arrachable (7, 8) qui s'étend parallèlement au ruban de liaison (4).
  2. Nappe pare-vapeur selon la revendication 1, caractérisée en ce que la couture arrachable (7, 8) est réalisée sous forme de ligne de perforations.
  3. Nappe pare-vapeur selon la revendication 1, caractérisée en ce que la couture arrachable est réalisée sous forme d'un affaiblissement de forme linéaire de la feuille (3).
  4. Nappe pare-vapeur selon l'une des revendications précédentes, caractérisée en ce que la couture arrachable (7, 8) est agencée à côté du ruban de liaison (4).
  5. Nappe pare-vapeur selon la revendication 1, caractérisée en ce que la couture arrachable est agencée dans la région du ruban de liaison (4).
  6. Nappe pare-vapeur selon la revendication 5, caractérisée en ce que la feuille (3) est reliée à la couche porteuse (2) dans la région du ruban de liaison (4) à la manière d'un cordon de soudure de séparation qui forme la couture arrachable.
  7. Nappe pare-vapeur selon l'une des revendications précédentes, caractérisée en ce que les tronçons de feuille (6) détachables de la couche porteuse (2) reposent de façon lâche sur la couche porteuse (2).
  8. Nappe pare-vapeur selon l'une des revendications 1 à 6, caractérisée en ce que les tronçons de feuille (6) détachables de la couche porteuse (2) sont revêtus d'une colle sur leurs côtés tournés vers la couche porteuse (2) qui, lors d'un contact surfacique du tronçon de feuille (6) immobilise celui-ci sur la couche porteuse (2) et qui, lors du détachement du tronçon de feuille (6) depuis la couche porteuse (2), adhère au tronçon de feuille (6) et est enlevée avec celui-ci vis-à-vis de la couche porteuse (2).
  9. Nappe pare-vapeur selon l'une des revendications 1 à 6, caractérisée en ce que la feuille (3) est reliée à la couche porteuse (2) au moyen d'un adhésif qui reste au moins partiellement sur la couche porteuse (2) lorsqu'on détache un tronçon de feuille (6), ledit adhésif ne menant à aucune limitation sensible du caractère ouvert à la diffusion de la couche porteuse (2).
  10. Nappe pare-vapeur selon l'une des revendications précédentes, caractérisée en ce que les rubans de liaison (4) s'étendent perpendiculairement à la direction longitudinale de la nappe pare-vapeur (1).
  11. Nappe pare-vapeur selon l'une des revendications précédentes, caractérisée en ce que la distance de rubans de liaisons voisins (4) est entre 5 cm et 30 cm.
  12. Nappe pare-vapeur selon l'une des revendications précédentes, caractérisée en ce que la feuille (3) est une feuille de polyéthylène ou une feuille de polypropylène.
  13. Nappe pare-vapeur selon l'une des revendications précédentes, caractérisée en ce que la feuille (3) présente une épaisseur entre 0,1 mm et 1 mm.
EP04029021A 2004-12-08 2004-12-08 Pare-vapeur, notamment pour des constructions de toiture Not-in-force EP1669509B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT04029021T ATE389762T1 (de) 2004-12-08 2004-12-08 Dampfsperrbahn, insbesondere für dachkonstruktionen
EP04029021A EP1669509B1 (fr) 2004-12-08 2004-12-08 Pare-vapeur, notamment pour des constructions de toiture
DE502004006605T DE502004006605D1 (de) 2004-12-08 2004-12-08 Dampfsperrbahn, insbesondere für Dachkonstruktionen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04029021A EP1669509B1 (fr) 2004-12-08 2004-12-08 Pare-vapeur, notamment pour des constructions de toiture

Publications (2)

Publication Number Publication Date
EP1669509A1 EP1669509A1 (fr) 2006-06-14
EP1669509B1 true EP1669509B1 (fr) 2008-03-19

Family

ID=34927683

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04029021A Not-in-force EP1669509B1 (fr) 2004-12-08 2004-12-08 Pare-vapeur, notamment pour des constructions de toiture

Country Status (3)

Country Link
EP (1) EP1669509B1 (fr)
AT (1) ATE389762T1 (fr)
DE (1) DE502004006605D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011120199A1 (de) 2010-12-09 2012-06-14 Peter Brinkmann Dampfsperrbahn

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19651843C1 (de) 1996-12-13 1998-03-26 Braas Gmbh Unterhalb der Dacheindeckung verlegbare Bahn
WO2000037751A1 (fr) * 1998-12-21 2000-06-29 Icopal A/S Pare-vapeur d'eau et son procede de fabrication
DE20021125U1 (de) * 2000-12-14 2001-02-22 Boerner Georg Chem Werk Unterlagsbahn für Dach- und sonstige Bauwerksabdichtungen
DE20120812U1 (de) * 2001-12-21 2003-04-30 Doerken Ewald Ag Dachabdichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011120199A1 (de) 2010-12-09 2012-06-14 Peter Brinkmann Dampfsperrbahn

Also Published As

Publication number Publication date
DE502004006605D1 (de) 2008-04-30
ATE389762T1 (de) 2008-04-15
EP1669509A1 (fr) 2006-06-14

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