EP2243888A2 - Système de protection contre l'humidité pour structures de construction, notamment structures de boisement ou de toit ayant des chevrons ou des poutres et analogues - Google Patents

Système de protection contre l'humidité pour structures de construction, notamment structures de boisement ou de toit ayant des chevrons ou des poutres et analogues Download PDF

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Publication number
EP2243888A2
EP2243888A2 EP20100159780 EP10159780A EP2243888A2 EP 2243888 A2 EP2243888 A2 EP 2243888A2 EP 20100159780 EP20100159780 EP 20100159780 EP 10159780 A EP10159780 A EP 10159780A EP 2243888 A2 EP2243888 A2 EP 2243888A2
Authority
EP
European Patent Office
Prior art keywords
vapor barrier
barrier film
closure
diffusion
closure element
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.)
Granted
Application number
EP20100159780
Other languages
German (de)
English (en)
Other versions
EP2243888A3 (fr
EP2243888B1 (fr
Inventor
Peter Bensch
Michael Langkau
Goran Stevanovic
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.)
Saint Gobain Isover G+H AG
Saint Gobain Isover SA France
Original Assignee
Saint Gobain Isover G+H 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.)
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Publication date
Application filed by Saint Gobain Isover G+H AG filed Critical Saint Gobain Isover G+H AG
Priority to PL10159780T priority Critical patent/PL2243888T3/pl
Publication of EP2243888A2 publication Critical patent/EP2243888A2/fr
Publication of EP2243888A3 publication Critical patent/EP2243888A3/fr
Application granted granted Critical
Publication of EP2243888B1 publication Critical patent/EP2243888B1/fr
Active 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
    • 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

Definitions

  • the invention also relates to a vapor barrier film for a moisture protection system and a hook tape, which is used for fastening the vapor barrier film to a wooden stand construction.
  • Timber frame constructions are used in the construction sector mainly for roofs, especially pitched roofs, but also half-timbered buildings.
  • the wooden stand construction also serves to accommodate conventional insulation materials for the purpose of thermal insulation.
  • insulating materials in the form of insulation board or insulation boards between the rafters of the timber frame construction are arranged.
  • the wooden stand construction is then suitably sealed towards the interior of the room.
  • the seal is airtight.
  • the requirements for airtightness are specified in DIN 4108, in particular in Part 7.
  • For the airtightness is crucial in addition to the entire covered area, the quality of the connections to adjacent or penetrating components.
  • the seal is also used for the purpose of moisture protection.
  • vapor barrier films are used, which are present in different embodiments.
  • vapor barrier films are polyethylene films with a constant water vapor diffusion resistance number ⁇ , which in practice is converted into the water vapor diffusion-equivalent air layer thickness, the so-called s d value.
  • s d value for such polyethylene films is the s d value, for example, in the range of about 100 m.
  • wet-adaptive films DE 19 544 120 ), which have a dependent on the ambient humidity changing s d value.
  • Such vapor barrier films accomplish an airtight seal and allow for some vapor diffusion depending on the external environment. This is especially true for wet-adaptive vapor barrier films.
  • Such films open, for example, in the summer, that is, they have a comparatively low vapor diffusion resistance, so that in summer the moisture stored in the wood in the form of water vapor from the wooden stand construction in sunlight and heat can escape.
  • the vapor barrier film is therefore virtually impermeable and the vapor pressure gradient causes the water vapor to migrate inwards out of the wooden structure so that the wooden construction can dry out.
  • the film closes at lower ambient humidity, which is the case especially in winter, that is, it then indicates a higher water vapor diffusion resistance, especially in the case of a film DE 19 544 120 an s d value of 2 to 5 m diffusion-equivalent air layer thickness and thus locks so to speak, so that the penetration of water vapor, which rises from the living rooms, is prevented in the timber frame construction.
  • moisture-adaptive films are also referred to as breathing films.
  • vapor barrier films with a constant water vapor diffusion resistance between 2 to 10 m see EP 1 372 956 ).
  • this Tackerdichtb can not safely prevent a gradual crack propagation starting from the mechanical attachment point, so that a corresponding risk potential remains.
  • nailing or screwing a subsequent correction of the vapor barrier films on the wooden stand construction can hardly be made.
  • the object of the invention is thus to provide for a simple, fast and safe, that is in particular non-destructive sealing of building structures, especially of wood stud or roof structures with rafters or beams by vapor barrier films, with subsequent corrections, that is, a displacement of the vapor barrier film relative to the construction should be possible without further notice.
  • a non-destructive and nevertheless perfectly sealing attachment of the vapor barrier film to beams, rafters and the like of a construction by using a conditional by adhesive fastener that is a closure that is claw-capable or klettdata.
  • Such closures have two closure elements which communicate with one another to form a claw connection, one of which is usually formed with a multiplicity of hooks, that is, barbs, and the other closure element is formed with corresponding loops. Pressing the two closure elements against each other, then the barbs dig into the loops and it results in a solid Krallverbund, but with a corresponding application of force and a loosening of the composite and thus allows a subsequent position correction of the vapor barrier films during installation.
  • This advantage is particularly important in connection with the problem of creating airtight connections in the weight, where the quick, easy production tailor-made blanks is greatly facilitated by the reversible attachment and removal of a vapor barrier film.
  • the vapor barrier film may be equipped with strip-like sealing tapes which extend in the longitudinal direction of the web and thus of the vapor barrier film.
  • the vapor barrier film is covered over its entire surface with a velcro-compatible, ie clingable layer.
  • the clawable closure bands or the full-surface clingable layer are preferably laminated onto the vapor barrier film, wherein the closure bands or the layer are formed from a diffusible nonwoven.
  • a nonwoven material here are polypropylene, polyethylene, polyamide and polyethylene terephthalate.
  • the vapor barrier film itself has a functional layer for the sealing, in which case it is suitable in particular for a moisture-adaptive film known per se, which is produced in particular on a polyamide basis.
  • Polyamide 3, polyamide 4 and polyamide 6 have proven to be particularly suitable.
  • the functional layer is not limited to a moisture-adaptive film but any suitable vapor barrier film, but also vapor barrier film can be used.
  • the functional layer may be provided on its top and / or bottom with a reinforcing layer, which is suitably laminated. Suitable reinforcing layers here are fabrics, scrims and nonwovens, for example glass fiber fabric and the like.
  • closure bands or the full-surface clingable layer and the reinforcement layers are also designed to be open to diffusion.
  • the figure shows two beams of a building construction and here two rafters 1 for a pitched roof and a designated 2 vapor barrier film, which is formed of a longitudinally wound and wound into a roll, some already for the purpose of laying on the rafters 1 of a Roll 3 is settled.
  • the illustrated rafters 1 are components of a pitched roof construction, which is usually introduced between the rafters 1 insulating material, such as mineral wool.
  • insulating material such as mineral wool.
  • Such insulation materials are known per se, so that they need not be described in detail here.
  • the insulation by so-called plate-like Klemmfilze, which wound from one to a roll Insulated material track cut to a certain extent according to the rafter spacing and then introduced with a press fit between the rafters executed.
  • this can be carried out in the form of insulating material webs, which are arranged between the rafters and attached by an underside provided aluminum lamination, which projects laterally over the insulating material web by Antackern on the underside of the rafters 1.
  • Such insulation is complemented by a vapor barrier film arranged on the underside, which is attached to the rafter underside and the insulation to the interior air-tight and seals for the purpose of moisture protection.
  • the vapor barrier film 2 is already rolled to a length greater than the rafter spacing of the two rafters 1.
  • the vapor barrier film 2 is first attached to the left rafter, then then on the right post and is mounted in analog form on other, not shown here rafters.
  • clawable closure elements are provided, namely strip-like closure elements 4a, which are attached to the underside of the rafters 1.
  • the attachment is done in a mechanical manner, such as by tacking, by nails or screws.
  • the attachment can also be done by a conventional adhesive bond, such as by gluing the bands 4a with the rafter bottom.
  • the fastener tapes 4a are also delivered in a winding and removed for assembly from the winding and attached to the rafter bottom, in the illustrated embodiment, the fastener tapes 4a extend substantially over the entire rafter length and cover the rafter bottom throughout the entire rafter length continuously.
  • the fastener tapes 4a may be designed for rafter width, but this is not required. In the illustrated embodiment, the fastener tapes cover a substantial portion of the rafter bottom.
  • the vapor barrier film 2 is provided with a corresponding second closure element, which is here formed by strip-like fastener tapes 4b.
  • these fastener tapes 4b extend in the longitudinal direction of the vapor barrier web, the fastener tapes extending over the entire length of the vapor barrier film and being arranged parallel to one another. It is preferred that the fastener tapes are arranged at a uniform distance from each other.
  • the closure elements 4b may also be provided in sections over the length of the insulating material web and thus not continuously. Preferably, however, a full-surface coverage of the vapor barrier film by a correspondingly flat closure element, which has processing advantages in difficult geometrical conditions with a large proportion of blanks.
  • closure elements 4a and 4b are formed as a clip-like and therefore clawable closure elements, it only needs to be suitably applied to the rafter underside and rolled out for attachment of the vapor barrier film and can then be permanently and permanently connected to the coasting by squeezing the closure elements 4a and 4b.
  • the advantage of this claw closure is not only in the simple assembly but also in that the vapor barrier film can be reversibly deducted to correct corrective measures and reoriented accordingly and can be re-attached by pressure on the fastener tapes 4a with appropriate permanent tight fit.
  • the vapor barrier film is formed of polyamide and prepared as a moisture-adaptive vapor barrier film.
  • it is made of polyamide 3, polyamide 4 or polyamide 6 and has a moisture dependent on the ambient moisture vapor diffusion resistance, which is formed with the proviso that at a relative humidity of the atmosphere surrounding the vapor barrier in the range of 30 to 50% an s d value of 2 to 5 m diffusion-equivalent air layer thickness, and at a relative humidity in the range of 60 to 80% a water vapor Diffusion resistance has an s d value which is less than 1 m diffusion-equivalent air layer thickness.
  • Such a vapor barrier film has the advantage that it allows a drying function in the summer, so that the moisture stored in the wood in the form of water vapor in the sun and heat in summer emerge and thus dry out the wooden structure. That is, the wet-wicking vapor barrier opens, so to speak, in the summer while it closes in winter, taking advantage of its full vapor barrier function, that is, substantially preventing water vapor from rising from the living spaces, leaving little moisture in the structure due to the high vapor diffusion resistance can penetrate.
  • the fastener tapes 4a have a width of 4 to 10 cm, preferably a width of 6 cm, which is dimensioned for all common rafter widths.
  • the fastener tapes 4b have a width of 5 to 40 cm, wherein the width of the single band can decrease with the number of bands.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
EP10159780.5A 2009-04-15 2010-04-13 Système de protection contre l'humidité pour structures de boisement ou de toit ayant des chevrons Active EP2243888B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10159780T PL2243888T3 (pl) 2009-04-15 2010-04-13 System ochrony przed wilgocią dla drewnianych konstrukcji szkieletowych lub konstrukcji dachowych z krokwiami

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009017486A DE102009017486A1 (de) 2009-04-15 2009-04-15 Feuchteschutzsystem für Baukonstruktionen, insbesondere Holzständer- oder Dachkonstruktionen mit Sparren oder Balken und dergleichen

Publications (3)

Publication Number Publication Date
EP2243888A2 true EP2243888A2 (fr) 2010-10-27
EP2243888A3 EP2243888A3 (fr) 2011-11-16
EP2243888B1 EP2243888B1 (fr) 2015-10-07

Family

ID=42371373

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10159780.5A Active EP2243888B1 (fr) 2009-04-15 2010-04-13 Système de protection contre l'humidité pour structures de boisement ou de toit ayant des chevrons

Country Status (4)

Country Link
EP (1) EP2243888B1 (fr)
DE (1) DE102009017486A1 (fr)
DK (1) DK2243888T3 (fr)
PL (1) PL2243888T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10513853B2 (en) 2016-03-24 2019-12-24 Owens Corning Intellectual Capital, Llc Roof covering and method of applying the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19514420C1 (de) 1995-04-19 1997-03-06 Fraunhofer Ges Forschung Dampfbremse für den Einsatz zur Wärmedämmung von Gebäuden
EP1372956A1 (fr) 2001-03-08 2004-01-02 Biologische Insel Lothar Moll GmbH & Co. KG Utilisation d'ionomeres destines a l'etancheite de matieriaux isolants
DE202005010317U1 (de) 2005-06-30 2005-09-29 Superglass Dämmstoffe GmbH System zur raumklimatischen Abdichtung von Gebäudeständerwerken
DE202005016200U1 (de) 2005-10-13 2005-12-22 Saint-Gobain Isover G+H Ag Dampfbremsfolie für die Wärmedämmung von Gebäuden

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2263375A1 (de) * 1972-12-23 1974-07-04 Braas & Co Gmbh Abdeckung grossflaechiger unterlagen, insbesondere von daechern und waenden mittels kunststoffbahnen
DE4100902A1 (de) * 1990-02-26 1991-08-29 Huels Troisdorf Verfahren zum befestigen von folien oder bahnen zu abdichtungszwecken an einem untergrund
EP1795654A3 (fr) * 2000-04-26 2008-08-06 Velcro Industries B.V. (NL) Procédé de retenue de sol ou de confinement de flux d'eau à l'aide d'une membrane environnementale
US20030070391A1 (en) * 2000-04-26 2003-04-17 Tachauer Ernesto S. Fastening with wide fastening membrane

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19514420C1 (de) 1995-04-19 1997-03-06 Fraunhofer Ges Forschung Dampfbremse für den Einsatz zur Wärmedämmung von Gebäuden
EP1372956A1 (fr) 2001-03-08 2004-01-02 Biologische Insel Lothar Moll GmbH & Co. KG Utilisation d'ionomeres destines a l'etancheite de matieriaux isolants
DE202005010317U1 (de) 2005-06-30 2005-09-29 Superglass Dämmstoffe GmbH System zur raumklimatischen Abdichtung von Gebäudeständerwerken
DE202005016200U1 (de) 2005-10-13 2005-12-22 Saint-Gobain Isover G+H Ag Dampfbremsfolie für die Wärmedämmung von Gebäuden

Also Published As

Publication number Publication date
DK2243888T3 (en) 2016-01-18
EP2243888A3 (fr) 2011-11-16
EP2243888B1 (fr) 2015-10-07
PL2243888T3 (pl) 2016-04-29
DE102009017486A1 (de) 2010-10-21

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