Classifications

• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
  • E06B1/62—Tightening or covering joints between the border of openings and the frame or between contiguous frames
• • 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
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
  • E06B1/62—Tightening or covering joints between the border of openings and the frame or between contiguous frames
  • E06B2001/628—Separate flexible joint covering strips; Flashings

Definitions

• the invention relates to a multilayer, vapor barrier, vapor retarding or vapor diffusion open film sheet for the construction sector, consisting of a water and airtight, in particular thermoplastic, plastic as a middle layer and plasterable outer layers of nonwoven, fabric, technical knitted fabric, knitting, glass fibers, reinforced paper, films and the like and an edge-side self-adhesive layer.
• the middle layer can also be formed as a composite material made of plastic and aluminum foil.
• curtain-type facades in which the windows are attached to the load-bearing structure by appropriate constructions (predominantly for larger objects, office buildings, etc.), single or double-skin facades and Thermal insulation composite systems and so-called perforated windows, in which the windows in the area of the supporting structure are more or less installed within the opening (predominantly residential buildings, smaller industrial buildings or municipalities).
• foils In order to make the connection of the windows to the building watertight and airtight and windproof in the case of curtain-type facades, it is state of the art to seal this area with foils.
• These foils usually consist of EPDM or butyl, TPO or PVC, polyethylene, polyester, polyurethane or laminated aluminum foils.
• the foils are either glued to the facade element and on the structure and / or mechanically attached.
• the essential task of all these foils is to ensure the wind and air tightness, and in some cases also water tightness, of the connections and joints.
• another property of the foils is important.
• the question of whether a diffusion-open or diffusion-braking or -blocking film is used depends on the point at which the film is or can be installed. If the film is installed on the so-called warm side, i.e. at a point at which the temperature due to the isothermal calculation does not fall below the critical dew point temperature, water vapor diffusion braking or barrier films are used. If the film is installed on the so-called cold side, i.e. at a point where the temperature is beyond the critical dew point temperature, films that are open to water vapor diffusion must be used so that the moisture condensing behind the film in winter can diffuse out again in the summer period.
• the building material with the lowest ⁇ value is decisive for the diffusion current. So if only the connection between the window and the load-bearing structure, if necessary also 1 to 2 cm on the load-bearing structure, is sealed with a sealant or a film with high water vapor diffusion resistance, but at the same time a porous outer wall brick is used, as is usually the case today is, the diffusion current wanders around this seal and is thus able to penetrate into the connection area between the structure and the window. There the water vapor can condense to water.
• vapor barrier foils on the room side when converting pitched roofs or for lightweight constructions of flat roofs, which are intended to prevent or reduce the penetration of water vapor into the roof structure, especially in the thermal insulation material, so that less water vapor migrates into the structure than can diffuse out in dry periods.
• vapor barrier films also ensure airtightness and / or windproofness.
• DIN 4108 the thermal insulation regulation
• the air and windproof connection to the masonry of the gable or the outer walls, to the chimney and to penetrations of all kinds is of particular importance.
• the building material with the lowest ⁇ value is decisive for the diffusion current. So if the connection between the vapor barrier film of the roof and the building is only sealed with a 2 cm wide profile, foam tape, sealant or similar, the diffusion flow is able to move around this area so that it condenses the water vapor within the Thermal insulation is coming. To prevent this, it would be necessary to pull the vapor barrier onto the masonry in a suitable width.
• the invention is therefore based on the object to achieve an absolutely airtight and windproof connection directly at the construction site, the connection area being supposed to be considerably denser than water vapor according to the technical requirements of the current state of the art.
• the width of the vapor barrier film web is 5 to 80 cm, in particular 10 to 40 cm, and that the thickness of the film web and the type of adhesive and the width of the self-adhesive layer are coordinated with one another in this way are, so that the vapor barrier film web can be permanently attached to window profiles made of plastic, aluminum, wood or the like and / or conventional water vapor barrier films made of polyolefins or the like solely by gluing and without mechanical fastening.
• the above-described conversion of the water vapor diffusion flow around the seal is reduced so much by a correspondingly wide pasting of the structure that it is ensured that in the dry periods more and more water vapor can diffuse out than can diffuse into the connection area in the cold season ,
• this requires the above-mentioned wide pasting of the building body, which is possible with the film width which is considerably larger according to the invention, the sealing film having to be plasterable because of the wide pasting and is also according to the invention.
• the sealing methods used so far are not suitable for this.
• additional measures e.g. B. by spanning the film with plaster base or the like.
• the thickness of the film web is 0.3 to 1 mm, in particular 0.4 to 0.7 mm.
• the self-adhesive layer have a width of 10 to 50 mm, in particular 20 to 30 mm.
• the invention also relates to a window frame with a glued and / or clamped-in diffusion-blocking or diffusion-open film web according to the invention.
• window frames can already be factory-equipped with the film web, so that they only need to be used on the construction site and the film web needs to be glued and plastered.
• the film web according to the invention can be used particularly advantageously for sealing the connections of window frames to load-bearing structures in the case of curtain-type facades and in the case of single-layer or multi-layer facades and facades to be coated with thermal insulation composite systems.
• the film web according to the invention consists in sealing the connections of vapor barrier films arranged below a roof structure to the outer walls, the chimney and / or other penetrations of the roof.
• the film web according to the invention is used in the version which blocks water vapor diffusion. It is also advantageous to use the film web according to the invention in the water vapor diffusion barrier design as a full-surface sealing of roofs to achieve wind and air tightness as a water vapor diffusion brake or barrier.
• FIG. 1 shows a section through an outer wall part in the area of a window in the case of a facade equipped with a thermal insulation composite system with the use of the film web according to the invention in the water vapor diffusion-blocking design on the inside of the window,
• FIG. 2 shows a section according to FIG. 1, but according to the prior art
• FIG. 3 shows a section through the connection of a roof to the masonry with the use of a film web according to the invention in a design that blocks water vapor diffusion
• FIG. 4 shows a section according to FIG. 3, but according to the prior art
• FIG. 6 shows a section through an outer wall part, in the area of the window with the use of two film webs according to the invention on the inside in the water vapor diffusion barrier version, on the outside in the water vapor diffusion open version.
• Support materials (substrates) for the film according to the invention can be nonwovens, woven fabrics, technical knitted fabrics and ropes made of synthetic and natural fibers and glass, as well as reinforced paper and films, provided that they form an adhesive bond to the melt and the adhesive and meet the product requirements.
• the basis weights of the substrates can be from 20 g / m 2 to 300 g / m 2 , preferably 80 g / m 2 to 100 g / m 2 .
• two polyester needle fleece, each with 80 g / m 2 are used.
• Thermoplastic materials are used as the intermediate layer, which as a film have the properties of being watertight and airtight and to a certain extent impermeable to water vapor or open to water vapor diffusion, and also to connect the two substrates to one another.
• polyolefins are preferably used for the vapor retarding or vapor barrier area (sd value> 2 m to 100 m) and for the diffusion-open area (sd value) ⁇ 2 m) copolyamides, copolyesters or thermoplastic polyurethanes.
• the sd value indicates the thickness of an air layer that has the same resistance to water vapor diffusion as the material.
• an aluminum foil can also be laminated. This almost completely prevents water vapor diffusion through the product and increases the sd value to significantly more than 100 m depending on the thickness of the aluminum foil.
• the weight per unit area of the plastic layer can be between 20 g / m 2 and 250 g / m 2 according to the requirement profile and is preferably between 80 g / m 2 and 130 g / m 2 .
• an LDPE intermediate layer with 130 g / m 2 is used.
• the polymer granulate used for the middle layer of the film web is in the extruder liquefied under temperature and pressure.
• the melt is deposited in the cooled nip between the substrates and cooled to room temperature.
• the solidified mass connects the fleeces to the product.
• the sealing film can be mechanically, e.g. B. by clamping, and / or by means of a self-adhesive strip, which can also already be applied to the sealing membrane, or glued by using a special polymer.
• the sealing film is glued to the structure with a special polymer, which is supplied in standard cartridges or plastic bags. This has the advantage that by applying an appropriate amount of the special polymer, the unevenness of the surface of the building structure that is customary on the construction site can be efficiently and safely compensated for.
• the film can be plastered with all the usual plastering techniques. It can be painted over or, which is important for thermal insulation composite systems, covered with insulation materials using all commercially available adhesives.
• a very important advantage of the invention is that this film has a thickness of 0.3 to 0.7 mm, preferably 0.55 mm, compared to the previous materials, and is therefore very thin, that it is glued, coated and plastered on both sides can be that even with large widths, it does not have to be mechanically fastened nor spanned with plaster supports. It is extremely robust and tear-resistant, which is important for everyday construction site use.
• the membrane can not only be used as a connection seal for conventional wind and / or vapor barrier films that are already in use today, it can also be used over the entire roof area as a wind and vapor barrier.
• the overlaps are then with a contact tape, e.g. B. based on butyl, acrylic, or with sealants or the like.
• the vapor barrier is pulled around in the connection area to the wall.
• the width of the gluing on the mural depends on the building physics.
• the film is glued to the wall former using a special polymer. After the polymer has dried completely, the sealing film can be plastered over with any mortar customary on the construction site, or pasted over or painted over.
• the film is used in widths of 50 to 500 mm, preferably 100 to 300 mm, depending on the building physics. It can be glued on one side to the vapor barrier using an adhesive strip or special polymer or sealant. Preferably, however, the film is already provided with a self-adhesive strip which produces the wind and airtight connection between the sheets of the large-area vapor barrier of the roof and the film strip according to the invention which can be plastered over. The film strip itself is glued to the masonry using a special polymer as described above.
• the foil strip can be used in an appropriate width, which is matched to the sd value of the building material, so that it is ensured that a correspondingly high water vapor diffusion resistance is achieved in the connection area in addition to the air and windproofness, which guarantees that the diffusing moisture is always lower than that which can diffuse out again in the dry periods.
• a windproof window connection is shown on the inside using the film sheet according to the invention in a vapor-blocking design.
• a window frame 1 is connected to the facade 2 in the usual way.
• the air- and windproof connection of the window frame 1 to the load-bearing masonry 3 is now important, which prevents the diffusion of water vapor from diffusing.
• the vapor barrier film 4 according to the invention is glued to the profile of the window frame 1.
• the film web 4 has an approximately 2 cm wide self-adhesive strip on one edge.
• the other edge of the film web 4 is glued to the supporting masonry 3, which can of course also be a concrete wall, by means of an adhesive paste 5.
• the interior plaster 6 can then be applied to this part of the film web 4 glued to the masonry 3 in a conventional manner in only a small thickness.
• connection according to the invention of the film web 4 shown in FIG. 3 in a vapor-blocking design in the area of roofs initially shows, in a manner known per se, roof beams 8, a gable wall 9, roof tiles 10 and the interior plaster 6 on the gable wall 9.
• a roofing membrane 11 Between the roof beams 8 and the roof tiles 10 is a roofing membrane 11 and on the inside of the roof beams 8 a water vapor barrier film 12 is arranged in a known manner.
• a film web 4 is glued to the water vapor barrier film 12 by means of a 3 cm wide self-adhesive edge 13.
• the other edge of the film web 4 is glued to the gable wall 9 with an adhesive paste 5.
• the interior plaster 6 is applied to the part of the film web 4 glued to the gable wall 9 and the remaining part of the gable wall 9.
• the width of the glued-on film web 4 can be adapted according to the building physics requirements.
• the water vapor barrier film 12 is by means of mechanical elements, for. B. a nailed / doweled roof batten 14, attached to the gable wall 9. Even if an elastic strand or a foam round profile 15 is arranged between the water vapor barrier film 12 and the gable wall 9, a reliable seal cannot be achieved, since the surface of the gable wall 9, unlike shown in FIG. 4, is usually rough and irregular. Another disadvantage also lies in the fact that the connection of the water vapor barrier film 12 to the gable wall 9 cannot be plastered over in the prior art without additional measures having to be provided.
• FIG. 5 shows a windproof window connection on the outside using the film web according to the invention in a diffusion-open design.
• a window frame 1 is connected in the usual way to the heat-insulating, load-bearing masonry.
• the air- and windproof, watertight but water vapor diffusion-open connection of the window frame 1 to the load-bearing masonry 16 is now important.
• the film web 4a according to the invention is glued to the profile of the window frame 1.
• the film web 4a has an approximately 2 cm wide self-adhesive strip on its one edge.
• the other edge of the film web 4a is by means of a Adhesive paste 5 glued to the supporting masonry 16.
• the outer plaster 17 can then be applied in a conventional manner to this part of the film web 4a adhered to the masonry 16.
• FIG. 6 shows a combined seal on the inside and outside with the water vapor diffusion braking or water vapor diffusion open film webs according to the invention.
• a window frame 1 is connected in a conventional manner to the load-bearing masonry 3.
• the water vapor diffusion barrier film web according to the invention is now attached on the inside, as explained in FIG. 1, the water vapor diffusion open film web according to the invention on the outside, as explained in FIG. 5.
• An interior plaster of the usual thickness can then be applied to the inside of the water vapor diffusion-blocking film web 4 and an exterior plaster or, as shown here, a thermal insulation system to the outside of the water vapor diffusion open film 4a.

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• Engineering & Computer Science (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Architecture (AREA)
• Building Environments (AREA)
• Laminated Bodies (AREA)
• Tents Or Canopies (AREA)
• Storage Of Web-Like Or Filamentary Materials (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

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• 2000
  • 2000-11-03 EP EP00974504A patent/EP1228281B1/fr not_active Expired - Lifetime
  • 2000-11-03 DE DE10054478A patent/DE10054478A1/de not_active Withdrawn
  • 2000-11-03 DE DE50015217T patent/DE50015217D1/de not_active Expired - Lifetime
  • 2000-11-03 PL PL00355626A patent/PL355626A1/xx not_active Application Discontinuation
  • 2000-11-03 WO PCT/EP2000/010825 patent/WO2001034922A1/fr not_active Ceased
  • 2000-11-03 AT AT00974504T patent/ATE398712T1/de not_active IP Right Cessation

Patent Citations (3)

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