EP4015738A1 - Light shaft assembly - Google Patents
Light shaft assembly Download PDFInfo
- Publication number
- EP4015738A1 EP4015738A1 EP20215543.8A EP20215543A EP4015738A1 EP 4015738 A1 EP4015738 A1 EP 4015738A1 EP 20215543 A EP20215543 A EP 20215543A EP 4015738 A1 EP4015738 A1 EP 4015738A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thermal insulation
- shaft
- light
- shaft wall
- arrangement
- 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
Links
- 238000009413 insulation Methods 0.000 claims abstract description 125
- 230000000903 blocking effect Effects 0.000 claims abstract description 91
- 238000007789 sealing Methods 0.000 claims abstract description 75
- 239000004568 cement Substances 0.000 claims description 26
- 239000000835 fiber Substances 0.000 claims description 26
- 239000000565 sealant Substances 0.000 claims description 20
- 229920000642 polymer Polymers 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000004026 adhesive bonding Methods 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 5
- 239000012815 thermoplastic material Substances 0.000 claims description 4
- 229920001821 foam rubber Polymers 0.000 claims description 3
- 239000013536 elastomeric material Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 description 9
- 238000000465 moulding Methods 0.000 description 9
- 229920002943 EPDM rubber Polymers 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000004858 capillary barrier Effects 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 230000007723 transport mechanism Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052704 radon Inorganic materials 0.000 description 1
- SYUHGPGVQRZVTB-UHFFFAOYSA-N radon atom Chemical compound [Rn] SYUHGPGVQRZVTB-UHFFFAOYSA-N 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F17/00—Vertical ducts; Channels, e.g. for drainage
- E04F17/06—Light shafts, e.g. for cellars
-
- 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
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/762—Exterior insulation of exterior walls
- E04B1/7641—Elements for window or door openings, or for corners of the building
Definitions
- the present invention relates to a light shaft arrangement for arrangement in particular in front of a basement window on a house wall of a building, and to a method for its production.
- Light shafts usually consist of a U-shaped shaft element, which is closed off at the bottom by a base part and defines an upper shaft opening.
- the upper shaft opening is usually covered with a grating or a continuous cover plate. While the grating and possibly also the cover plate are designed to be permeable to air, so that air can circulate between the interior of the shaft and the outside of the building, the floor element is primarily used to seal the light shaft from below in a watertight manner to prevent moisture from penetrating into the building to prevent shaft space.
- the object of the invention is to create an improved light well arrangement for a light well for arrangement on a housing wall and a method for its production, whereby the light well arrangement can be assembled quickly and easily on site and the sealing properties are improved.
- a light shaft arrangement which is used in particular for arrangement in front of a cellar window on a house wall of a building, with a light shaft which has a shaft wall element with a U-shaped or arc-shaped cross section and a floor element which closes the shaft wall element at the bottom, a thermal insulation element which is applied to the end faces of the shaft wall element and base element, and a sealing element which is arranged on the side of the thermal insulation element which is remote from the shaft wall element or base element. Furthermore, a capillary blocking element is provided, which has a light shaft-side section that extends in the shaft wall element and floor element. The capillary blocking element is connected to the thermal insulation element.
- An advantage of the light shaft arrangement according to the invention is that the capillary blocking element is used on the one hand to connect the shaft wall element and base element to the heating element and on the other hand acts as a watertight separating layer.
- the capillary blocking element effectively prevents the capillary transport mechanism in the area where the shaft wall element and base element are connected to the thermal insulation element. i.e. creeping ingress of moisture from the outside of the light well to the inside of the light well is prevented.
- the connection area is prevented from acting as a thermal bridge.
- the shaft wall element and base element are cast together in one piece from concrete and the section of the capillary blocking element on the light shaft side is cast into the shaft wall element and base element.
- This achieves a precisely fitting accommodation of the capillary blocking element in the shaft wall element and base element, which in turn promotes the capillary blocking effect and leads to an improvement in watertightness.
- this results in a form-fitting connection of the capillary blocking element in the direction perpendicular to the shaft wall element and base element.
- At least one projection, and preferably a plurality of projections can be provided on the capillary blocking element in such a way that the capillary blocking element is held in a form-fitting manner in the shaft wall element and base element.
- the capillary blocking element is also held positively in the cast concrete perpendicular to the end faces of the shaft wall element and base element by the projections. i.e. the capillary locking element is secure and cannot be lost connected to the shaft wall element and floor element. This simplifies handling during on-site assembly.
- the capillary transport mechanism is also effectively interrupted along the connection area between shaft wall element and base element with the thermal insulation element and generally in the area of the thermal insulation element.
- the capillary blocking element also results in an improved connection of the shaft wall element and floor element to the thermal insulation element.
- the capillary blocking element is preferably connected to the thermal insulation element by gluing using a hybrid sealant made from MS polymer.
- a hybrid sealant made from MS polymer has the advantage that it is used both for sealing and for bonding.
- the hybrid sealant creates a watertight connection between the capillary barrier element and the thermal insulation element. This is also important insofar as the capillary effect is present not only in the direction perpendicular to the plane of the thermal insulation element and the shaft wall element, but in all directions.
- the thermal insulation element can be provided continuously in a U-shape or arc shape on the end faces of the shaft wall element and floor element. This results in thermal insulation in the entire connection area between the shaft wall element and floor element with the building wall. Accordingly, when the shaft wall element and floor element are installed in the building, continuous thermal insulation can be achieved between the shaft wall element and floor element with the wall surrounding the window.
- the capillary blocking element is preferably provided continuously along the connection area between the shaft wall element and the base element with the thermal insulation element. This in turn results in an interruption of the capillary effect in the entire connection area between the shaft wall element and the floor element with the thermal insulation. Accordingly, in the installed state of the shaft wall element and floor element on the building, improved watertightness can be achieved the connection between the shaft wall element and floor element can be achieved with the thermal insulation element.
- the capillary blocking element is advantageously designed in the form of a strip or bar.
- the capillary blocking element is easy to handle with it.
- the section forming the capillary blocking element can be drawn off in the desired length from an endless strip-shaped supply and cut to length accordingly.
- the capillary blocking element preferably runs in planes parallel to the planes of the adjoining walls of the shaft wall element and base element.
- the capillary blocking element runs slightly obliquely to the planes of the adjacent walls of the shaft wall element and the base element.
- the ratio of the thickness of the side wall element and base element to the thickness of the capillary blocking element is between 5 and 30, preferably at least 10 and 20. In this area, the capillary blocking element optimally fulfills both functions, namely the connection function and the capillary blocking function.
- the capillary blocking element is preferably made of a water-impermeable and deformable material.
- the watertightness of the material is relevant for the function as a capillary blocking element, while the deformability of the material is important in the production of the light shaft arrangement for adapting the capillary blocking element to the shape of the end faces of the shaft wall element and the bottom wall element.
- the capillary blocking element consists of a thermoplastic material, watertightness and elastic deformability can be guaranteed.
- the thermoplastic material is a thermoplastic synthetic material.
- the advantage is that a thermoplastic can be brought into the U-shape corresponding to the end faces of the shaft wall element and floor element by a simple heat treatment due to its dimensional stability in a range of approximately -20°C to +80°C and its heat deformability. Due to the inherent rigidity of the thermoplastic material, a dimensionally stable capillary blocking element can be produced.
- the capillary locking element consists of an elastomer material
- the capillary blocking element behaves flexibly due to its rubber-elastic properties.
- a heat treatment to give the capillary blocking element a specific shape, such as a U-shape or arc shape, is then not necessary.
- the thermal insulation element consists of a thermal insulation strip which is laterally enclosed by two fiber cement panels. This ensures that the thermal insulation strip is protected against damage both before installation and during installation.
- the thermal insulation strip preferably consists of an extruded polystyrene (XPS), which is suitable as an insulating material for insulating the outer walls of a basement. Since the XPS material is also water-resistant, it is also possible to prevent water or moisture from penetrating the interior of the manhole.
- other foamed insulating materials can also be used as material for the thermal insulation strips. This can be z. B. be expanded polystyrene (EPS) or polyurethane (PUR).
- the fiber cement panels can be provided with an additional surface coating to prevent weather influences and to prevent water absorption.
- the fiber cement panels have a density of at least 1,350 kg/m 3 .
- the sealing element is preferably provided continuously along the end face of the thermal insulation element. This results in a seal against the ingress of water or moisture in the entire connection area of the thermal insulation element with the building wall. Accordingly, when the light well arrangement is installed in the building, an effective seal can be achieved in the connection area of the thermal insulation element with the building wall that surrounds the window.
- the sealing element is designed in the form of a strip.
- the capillary blocking element is thus easy to handle and can also be made available in rolls for large-scale production. It only has to be cut to length accordingly.
- the sealing element has at least one projection section, which extends on the side facing away from the shaft wall element and base element.
- the protruding section has the advantage of being held against the building wall can be squeezed or squeezed. If the building wall surfaces are not flat or smooth, the projection portion can be pressed against the building wall to compensate for the unevenness for improved waterproofing. This makes both the watertight on-site assembly and the workload much easier. In addition, more pressure can be applied to the narrower projection portions when pressed, so that the sealing is improved.
- the projection section is also continuous, in particular arranged in a U-shape.
- the sealing element preferably has at least three projection sections which extend on the side facing away from the shaft wall element and base element.
- the protruding sections are each spaced apart in the thickness direction of the shaft wall element and base element, resulting in deflection spaces between the protruding sections into which the protruding sections can deviate laterally when pressed against the building wall. Should cavities still be present between the projections in the installed state, these can advantageously provide additional thermal insulation.
- the sealing element consists of foam rubber with a density of between 400 g/dm 2 and 1000 g/dm 2 , preferably of between 400 g/dm 2 and 500 g/dm 2 density, and more preferably of between 400 g/dm 2 and 450 g/dm 2 .
- Sponge rubber has a very high compressive elasticity and very good resilience in the cold (flexibility is retained for more than 5 hours at a temperature of -40° C).
- Foam rubber also has very good resistance to aging, which is why it is a suitable material for long-term applications such as installing light wells on building walls.
- Sponge rubber can be made from natural rubbers and/or synthetic rubbers such as e.g. B.
- EPDM ethylene propylene diene monomer
- fluororubber fluororubber
- silicone or chloroprene
- EPDM with a Shore A hardness of 15° +/- 3° is preferably used to produce the sealing element.
- EPDM has high compressibility and good sealing properties.
- the sealing element can also be provided with a closed outer skin. Due to the high pressure elasticity, the EPDM material can already deform under slight pressure cling firmly to the surface of the building wall to ensure reliable sealing and to be able to adapt to the changed conditions, for example in the event of temperature changes accompanying expansion of adjacent materials, such as the building wall.
- the sealing element is preferably connected to the thermal insulation element by gluing using a hybrid sealant made of MS polymer.
- a hybrid sealant made from MS polymer has the advantage that it is used both for sealing and for bonding.
- the hybrid sealant creates a watertight connection between the sealing element and the thermal insulation element.
- Another advantage of the hybrid sealant is that it can harden with almost no shrinkage, so that no inclusions or gaps are possible.
- a silicone material can be introduced between the sealing element and the thermal insulation element. Since the EPDM material of the sealing element is difficult or impossible to bond, the silicone material is not used as an adhesive in this case but as a filler to create or improve a positive connection between the sealing element and the thermal insulation element and thereby improve the tightness.
- the sealing element can also be fixed to the thermal insulation element with the aid of fastening means such as screws, nails or clips.
- fastening means such as screws, nails or clips.
- the invention also relates to a method for producing a light shaft arrangement, which is used in particular for arrangement in front of a cellar window on a house wall of a building, the light shaft arrangement having a light shaft which has a shaft wall element with a U-shaped cross section and a floor element which closes the shaft wall element at the bottom , further comprising a thermal insulation element, which is applied to the end faces of the shaft wall element and floor element, and a capillary blocking element, with the following steps: providing the thermal insulation element and the capillary blocking element, the capillary blocking element having a section on the light shaft side, which protrudes from the thermal insulation element; Concrete casting of the shaft wall element and base element while receiving the light well-side portion of the capillary barrier element such that the light shaft-side portion extends into the shaft wall element and base element, and curing the cast shaft wall element and base element including the box element-side portion of the capillary barrier element.
- the method further includes the step of providing the capillary barrier element with an insulation-side portion received in the thermal insulation element and connected to the thermal insulation element.
- the thermal insulation element can thus already be equipped with the step of connecting the capillary blocking element to the thermal element with a blocking of the capillary transport mechanism in the connection area between shaft wall element and floor element with the thermal insulation element and in the area of the thermal insulation element itself.
- the method comprises the step of attaching one fiber cement panel to each side of the thermal insulation strip in such a way that the thermal insulation strip is laterally enclosed by the fiber cement panels.
- the method preferably comprises the following steps: providing a sealing element which has at least one projection section; and arranging and gluing the sealing element on the side facing away from the shaft wall element and floor element Side of the thermal insulation element before or after the concrete casting of the shaft wall element and base element such that the projection portion extends on the side facing away from the shaft wall element and base element of the sealing element.
- a unit consisting of thermal insulation element, capillary blocking element and sealing element can be connected to the shaft wall element and floor element in a single work step, namely concrete pouring.
- the gluing step can also be carried out at the factory.
- the light shaft arrangement 2 shown is used for arrangement in front of a basement window on a (not shown) house wall of a building.
- a light shaft 4 first of a shaft wall element 6, which has a U-shaped cross section, and a base element 8, which closes the shaft wall element 6 at the bottom.
- the shaft wall element 6 in turn consists of two parallel flat side wall panels 10, 12, both of which are rectangular in shape, and a rectangular transverse wall panel 14.
- the two side wall panels 10, 12 are connected by the transverse wall panel 14 in such a way that the light shaft 4 has a U-shaped cross section .
- the side wall panels 10, 12 and the transverse wall panel 14 are arranged at right angles to one another.
- the floor element 8 in 1 is provided in the form of a rectangular base plate.
- the side wall panels 10, 12 and the bulkhead panel 14 have the same dimensions (WHD).
- the U-shaped shaft wall element 6 defines an upper light shaft opening 18 which can be covered with a cover element, not shown, such as a cover plate or a cover grille.
- the light shaft 4 is formed in one piece from concrete, i.e. the shaft wall element 6 is cast with the floor element 8 in one piece from concrete.
- the shaft wall element 6 and the floor element 8 can also be separate components which are connected to one another with the aid of appropriate fastening means.
- a thermal insulation element 22 is also applied to the end faces of shaft wall element 6 and floor element 8 .
- the thermal insulation element 22 is arranged continuously along the end faces and runs correspondingly in a U-shape along the end faces.
- a sealing element 24 is in turn applied to the thermal insulation element 22.
- the sealing element 24 is provided on the side of the thermal insulation element 22 facing away from the light shaft 4 or shaft wall element 6 and floor element 8 or on the end face of the thermal insulation element 22.
- the sealing element 24 forms the outermost section of the light shaft arrangement 2 and seals the interior of the light shaft 4 in the installed state from the outside, usually from the surrounding soil.
- the thermal insulation element 22 consists of a thermal insulation strip 26, from which 1 the uppermost end surface 27 can be seen.
- the thermal insulation strip 26 is laterally enclosed by two fiber cement panels 28, 30, which are described in more detail below.
- the thermal insulation strip 26 is enclosed by the sealing element 24 in the installation direction and enclosed towards the light shaft 4 by the shaft wall element 6 and the floor element 8 . That is, the thermal insulation strip 26 is bordered continuously in a circumferential direction, while the upper end surfaces 27, which 1 are still exposed can be sealed with a hybrid sealant made from MS polymer.
- the fiber cement panels 28, 30 also have a U-shaped course.
- the fiber cement panels 28, 30, the thermal insulation element 22 and the sealing element 24 run parallel to one another.
- the fiber cement panels 28, 30 are formed in strips.
- the fiber cement panels 28, 30 are each bonded to the associated adjacent fiber cement panels of the floor element 8 at the respective butt joints, so that the butt joints are sealed.
- On the outer side surfaces of the side wall panels 10, 12 mounting brackets for attachment to the masonry of a building, for. B. by means of screws or bolts.
- FIG. 2 In relation to 2 is a sectional view along the line AA in 1 of the right side wall panel 12 is shown.
- the sectional view shows an outer portion of the side wall panel 12, the thermal insulation element 22 arranged thereon with thermal insulation strips 26 and lateral fiber cement panels 28, 30, and the sealing element 24 arranged on the thermal insulation strip 26.
- the wall thickness of the shaft wall element 6 corresponds approximately to the sum of the thicknesses of the thermal insulation strip 26 and the fiber cement panels 28, 30.
- a capillary blocking element 34 extends in the side wall panel 12 and in the thermal insulation strip 26.
- the capillary blocking element 34 is formed by a flat rectangular profile when viewed in cross-section. The profile is centered in the side wall panel 12 and in the thermal insulation strip 26 respectively.
- a light well-side section 35 of the capillary blocking element 34 extends in the side wall panel 12 and an insulation-side section 36 in the thermal insulation strip 26.
- the capillary blocking element 34 extends in the thermal insulation strip 26 approximately up to Half of the total extension of the thermal insulation strip 26 between the side wall panel 12 and the sealing element 24.
- the capillary blocking element 34 is in the form of a strip, plate or strip. Like the fiber cement panels 28, 30, the thermal insulation strip 26 and the sealing element 24, the capillary blocking element 34 is also provided continuously along the connection area between the side wall panel 12 and the base panel 16 with the thermal insulation strip 26. As further from the synopsis of 1 and 2 shows, the capillary blocking element 34 has a U-shaped profile. The fiber cement panels 28, the thermal insulation strip 26, the sealing element 24 and the capillary blocking element 34 run parallel to one another. In particular, the capillary blocking element 34 extends in planes parallel to the planes of the adjoining walls of the shaft wall element 6 and the bottom element 8. As can further be seen from the combination of FIG 1 and 2 shows that the upper side surfaces of shaft wall element 6, thermal insulation strips 26, fiber cement panels 28, 30, sealing element 24 and capillary blocking element 34 are flush.
- the section 36 of the capillary blocking element 34 on the insulation side is connected to the thermal insulation strip 26 .
- the capillary blocking element 34 is connected to the thermal insulation strip 26 in particular by gluing using a hybrid sealant made from MS polymer.
- the hybrid sealant made of MS polymer can also be provided as a sealing material between the shaft wall section 6 and the thermal insulation strip 26 and/or the fiber cement panels 28, 30.
- the hybrid sealant made from MS polymer is silicone-free, has good adhesive properties, is weather-resistant and can cure with almost no shrinkage.
- the section 35 of the capillary blocking element 34 on the light shaft side is cast into the side wall plate 12, as described in more detail below.
- the thermal insulation element 26 or only the insulating strip 24 or only the fiber cement panels 28, 30 can be connected to the side wall panel 12, e.g. B. be connected by gluing.
- the sealing element 24 is in figure 5 shown in an enlarged sectional view.
- the sealing element 24 is essentially provided as a sealing strip 38 on which three protruding projection sections 40, 42, 44 or 46, 48, 50 are additionally provided on the two flat, opposite sides.
- the three building-side projection sections 40, 42, 44 extend on the side of the sealing strip 38 facing away from the shaft wall element 6 or base element 8, while the projection sections 46, 48, 50 on the light shaft side extend from the opposite side of the sealing strip 38. That is, the boss portions 40, 42, 44 and the boss portions 46, 48, 50 extend from the sealing strip 38 in opposite directions. How further in figure 5 As can be seen, adjacent projection portions 40, 42, 44 and 46, 48, 50, respectively, are spaced apart. While the projecting sections 40, 42, 44 on the building side all have the same longitudinal extent, the central projecting section 48 of the projecting sections 46, 48, 50 on the light shaft side is longer than the two lateral projecting sections 46, 50.
- the projection sections 46, 48, 50 on the light well side are in corresponding recesses 52, 54, 56, which in 3 are specified, added to the end faces of the thermal insulation strip 26 and in particular the central projection section 48 on the light shaft side is accommodated in the recess 54 with the introduction of hybrid sealant made of MS polymer 37 .
- Due to the hybrid sealant made of MS polymer 37 present in the recess 54 there is a shortage of accommodation space, as a result of which the projection section 48 pressed into the recess 54 presses the adjacent sections of the thermal insulation strip 26 laterally outwards and thus for better holding of the adjacent projection sections 46, 50 in the Recesses 52, 56 provides. This is made possible by the fact that the hybrid sealant made from MS polymer can cure with almost no shrinkage.
- the protruding sections 40, 42, 44 or 46, 48, 50 are approximately mushroom-shaped, funnel-shaped or wedge-shaped in order to obtain a form-fitting connection.
- the mushroom-shaped, funnel-shaped or wedge-shaped cross-sectional shapes of the projection sections with the corresponding recesses 52, 54, 56 in the thermal insulation strip 26 create a snap-in connection.
- a hybrid sealant made of MS polymer which also serves as an adhesive at the same time, can also be used to connect the sealing element 24 and the thermal insulation strip 26 .
- 3 shows the in 2 The section shown is an exploded view showing sidewall panel 12, thermal insulation member 22 with fiber cement panels 28, 30 in place and associated capillary blocking member 34, and sealing member 24 individually and spaced apart.
- 3 shows the hybrid sealant made of MS polymer 37 introduced into the recess 54.
- a plurality of projections 58 is formed on the capillary blocking element 34 .
- the projections 58 contribute to the positive connection of the capillary blocking element 34 with the hardened shaft wall element 6 and base element 8 .
- the capillary blocking element 34 is continuously provided with a plurality of projections 58 on the flat sides, which extend perpendicularly to the plane of the capillary blocking element 34 and form a sawtooth-shaped profiling of the capillary blocking element 34.
- the sawtooth-shaped profiling of the flat sides enables a form-fitting connection with the side wall panel 12. Facing end faces of the side wall panel 12 and the thermal insulation element 22 abut one another.
- an adhesive and/or a sealant can be introduced between the adjoining surfaces of the side wall panel 12 and the thermal insulation element 22 .
- a different profile can also be used, such as a wave-shaped, a triangular, or a rectangular or stepped profile.
- the projections can also not be continuous on the side surface of the capillary blocking element 34, but can only be provided in sections.
- the capillary blocking element 34 could have no protrusions 58 in the portion that is accommodated in the thermal insulation element 22, but only in the portion that is connected to the side wall panel 12.
- the capillary blocking element can be strip-shaped as such but with a wavy or zigzag course.
- one or more projections in the form of retaining legs can also be provided on the capillary blocking element 34 .
- the holding leg or legs can protrude from the capillary blocking element at an angle or at right angles in such a way that they act as barbs in the poured concrete.
- the holding legs are firmly engaged with the side wall panel 12 .
- the casting mold 60 comprises a body molding 62 for shaping the inside of the light shaft and a molding end section 64 which is used to form the front section of the light shaft arrangement 2 which faces the building when installed.
- the body molding 62 and the molding end section 64 are attached to a base plate 66 .
- the molding end portion 64 has three recesses 68 which extend around the body molding 62 in a U-shape and which are adapted to receive the three boss portions 40, 42, 44 of the sealing element 24, which are in figure 5 can be seen serve.
- a circumferential U-shaped wall section 70 is formed on each of the two outer sides, which serves to form an edge and to connect the sealing element 24 to the thermal insulation element 22, the fiber cement panels 28, 30 and the thermal insulation element 22 to the capillary blocking element 34 to be held in position during concrete pouring.
- a thermal insulation element 22 and a capillary blocking element 34 are first provided.
- the capillary blocking element 34 has a section 35 on the light shaft side, which protrudes from the thermal insulation element 22 .
- the capillary blocking element 34 can also be provided with a section 36 on the insulation side, which is accommodated in the thermal insulation element 22 and connected to the thermal insulation element 22 .
- a fiber cement panel 28, 30 is attached to the sides of the thermal insulation element 22 in such a way that the thermal insulation element 22 is laterally enclosed by the fiber cement panels 28, 30.
- a sealing element 24 is then provided which has at least one protruding section 40, 42, 44 or 46, 48, 50.
- the sealing element 24 is now arranged in the molded part end section 64 in such a way that the projection sections 40 , 42 , 44 are received in the complementary recesses 68 of the molded part end section 64 .
- the thermal insulation element 22, which is already connected to the capillary blocking element 34 was brought together with the sealing element 24 located in the molding end section 64 in such a way that the projection sections 46, 48, 50 of the sealing element 24 are accommodated in the complementary recesses 52, 54, 56 in the thermal insulation element 22.
- a hybrid sealant made of MS polymer 37 can be introduced into at least one of the complementary recesses 48 for sealing and bonding purposes.
- the sealing element 24 and the thermal insulation element 22 are arranged with the capillary blocking element 34 for concrete pouring.
- the sealing member 24 and thermal insulation member 22 may be bonded together prior to placement in the end molding portion 64 and placed in the end molding portion 64 as a unit.
- the shaft wall element 6 and the base element 8 are then cast in concrete, taking up the section 35 of the capillary blocking element 34 on the light shaft side, in such a way that the section 35 of the capillary blocking element 34 on the light shaft side extends in the shaft wall element 6 and base element 8 .
- the cast shaft wall element 6 and base element 8 are cured.
- the curing takes place while creating a form-fitting connection of the light shaft-side section 35 of the capillary blocking element 34 with the shaft wall element 6 and base element 8.
- a light shaft arrangement 2 was produced, which is used in particular for arrangement in front of a basement window on a house wall of a building, the light shaft arrangement 2 having a light shaft 4, a shaft wall element 6 with a U-shaped cross section and a floor element 8, which closes off the shaft wall element 6 at the bottom, a thermal insulation element 22 which is applied to the end faces of the shaft wall element 6 and the base element 8, and a capillary blocking element 34.
Abstract
Die Lichtschachtanordnung (2) dient insbesondere zur Anordnung vor einem Kellerfenster an einer Hauswand eines Gebäudes und umfasst einen Lichtschacht (4), der ein Schachtwandelement (6) mit einem U- oder bogenförmigen Querschnitt und ein Bodenelement (8), welches das Schachtwandelement (6) nach unten abschließt, aufweist. Ein Wärmedämmelement (22) ist an Stirnflächen von Schachtwandelement (6) und Bodenelement (8) aufgebracht und ein Dichtelement (24) ist an der dem Schachtwandelement (6) bzw. dem Bodenelement (8) abgewandten Seite des Wärmedämmelements (22) angeordnet. Weiterhin ist ein Kapillar-Sperrelement (34) vorgesehen, das einen lichtschachtseitigen Abschnitt aufweist, der sich in dem Schachtwandelement (6) und Bodenelement (8) erstreckt. Das Kapillar-Sperrelement (34) ist mit dem Wärmedämmelement (22) verbunden.The light shaft arrangement (2) is used in particular for arrangement in front of a cellar window on a house wall of a building and comprises a light shaft (4) which has a shaft wall element (6) with a U-shaped or arc-shaped cross section and a floor element (8) which holds the shaft wall element (6 ) terminates at the bottom. A thermal insulation element (22) is applied to the end faces of the shaft wall element (6) and base element (8) and a sealing element (24) is arranged on the side of the thermal insulation element (22) facing away from the shaft wall element (6) or the base element (8). Furthermore, a capillary blocking element (34) is provided, which has a section on the light shaft side, which extends in the shaft wall element (6) and base element (8). The capillary blocking element (34) is connected to the thermal insulation element (22).
Description
Die vorliegende Erfindung betrifft eine Lichtschachtanordnung zur Anordnung insbesondere vor einem Kellerfenster an einer Hauswand eines Gebäudes, sowie ein Verfahren zu deren Herstellung.The present invention relates to a light shaft arrangement for arrangement in particular in front of a basement window on a house wall of a building, and to a method for its production.
Lichtschächte bestehen üblicherweise aus einem U-förmigen Schachtelement, das nach unten durch ein Bodenteil abgeschlossen ist und eine obere Schachtöffnung definiert. Die obere Schachtöffnung wird zumeist mit einem Gitterrost oder einer durchgängigen Abdeckplatte abgedeckt. Während der Gitterrost und ggf. auch die Abdeckplatte luftdurchlässig gestaltet sind, so dass eine Luftzirkulation zwischen dem Schachtinnenraum und der Außenumgebung des Gebäudes gewährleistet ist, dient das Bodenelement vor allen Dingen dazu, den Lichtschacht nach unten wasserdicht abzudichten, um ein Eindringen von Feuchtigkeit in den Schachtraum zu verhindern.Light shafts usually consist of a U-shaped shaft element, which is closed off at the bottom by a base part and defines an upper shaft opening. The upper shaft opening is usually covered with a grating or a continuous cover plate. While the grating and possibly also the cover plate are designed to be permeable to air, so that air can circulate between the interior of the shaft and the outside of the building, the floor element is primarily used to seal the light shaft from below in a watertight manner to prevent moisture from penetrating into the building to prevent shaft space.
Zunehmend werden Lichtschächte werksseitig vorgefertigt und zur Vor-Ort-Montage ausgeliefert. Zur Anbringung der vorgefertigten Lichtschächte an Gebäuden ist es bekannt, zwischen den Anschlussflächen bzw. den Stirnseiten des Schachtelements und des Bodenteils mit der Gebäudewand ein Dicht- und Dämmmaterial anzuordnen. Da dieser Arbeitsvorgang an der Einbaustelle vor Ort am Gebäude erfolgt, muss auch unter erschwerten Bedingungen am Einbauort, z.B. witterungsbedingt, die Qualität der Dicht- und Dämmverbindung dennoch sichergestellt sein.Increasingly, light wells are prefabricated at the factory and delivered for on-site assembly. To attach the prefabricated light shafts to buildings, it is known to arrange a sealing and insulating material between the connecting surfaces or the end faces of the shaft element and the base part with the building wall. Since this work process takes place at the installation site on the building, the quality of the sealing and insulating connection must still be ensured even under difficult conditions at the installation site, e.g. due to the weather.
Der Erfindung liegt die Aufgabe zugrunde, eine verbesserte Lichtschachtanordnung für einen Lichtschacht zur Anordnung an einer Gehäusewand sowie ein Verfahren zu deren Herstellung zu schaffen, wobei die Lichtschachtanordnung schnell und in einfacher Weise vor Ort montiert werden kann und die Dichteigenschaften verbessert sind.The object of the invention is to create an improved light well arrangement for a light well for arrangement on a housing wall and a method for its production, whereby the light well arrangement can be assembled quickly and easily on site and the sealing properties are improved.
Diese Aufgabe wird durch die Merkmale der Ansprüche 1 und 19 gelöst.This object is solved by the features of claims 1 and 19.
Erfindungsgemäß wird eine Lichtschachtanordnung, die insbesondere zur Anordnung vor einem Kellerfenster an einer Hauswand eines Gebäudes dient, vorgeschlagen, mit einem Lichtschacht, der ein Schachtwandelement mit einem U- oder bogenförmigen Querschnitt und ein Bodenelement, welches das Schachtwandelement nach unten abschließt, aufweist, einem Wärmedämmelement, das an Stirnflächen von Schachtwandelement und Bodenelement aufgebracht ist, und einem Dichtelement, das an der dem Schachtwandelement bzw. Bodenelement abgewandten Seite des Wärmedämmelements angeordnet ist. Weiterhin ist ein Kapillar-Sperrelement vorgesehen ist, das einen lichtschachtseitigen Abschnitt aufweist, der sich in dem Schachtwandelement und Bodenelement erstreckt. Das Kapillar-Sperrelement ist mit dem Wärmedämmelement verbunden.According to the invention, a light shaft arrangement is proposed, which is used in particular for arrangement in front of a cellar window on a house wall of a building, with a light shaft which has a shaft wall element with a U-shaped or arc-shaped cross section and a floor element which closes the shaft wall element at the bottom, a thermal insulation element which is applied to the end faces of the shaft wall element and base element, and a sealing element which is arranged on the side of the thermal insulation element which is remote from the shaft wall element or base element. Furthermore, a capillary blocking element is provided, which has a light shaft-side section that extends in the shaft wall element and floor element. The capillary blocking element is connected to the thermal insulation element.
Ein Vorteil der erfindungsgemäßen Lichtschachtanordnung besteht darin, dass das Kapillar-Sperrelement einerseits zur Verbindung von Schachtwandelement und Bodenelement mit dem Wärmeelement dient und andererseits als eine wasserdichte Trennschicht fungiert. Durch das Kapillar-Sperrelement wird der kapillare Transportmechanismus im Bereich der Verbindung von Schachtwandelement und Bodenelement mit dem Wärmedämmelement wirksam unterbunden. D. h. es wird ein schleichendes Eindringen von Feuchtigkeit von der Außenseite des Lichtschachts zur Innenseite des Lichtschachts verhindert. Zusätzlich wird verhindert, dass der Verbindungsbereich als eine Wärmebrücke wirkt.An advantage of the light shaft arrangement according to the invention is that the capillary blocking element is used on the one hand to connect the shaft wall element and base element to the heating element and on the other hand acts as a watertight separating layer. The capillary blocking element effectively prevents the capillary transport mechanism in the area where the shaft wall element and base element are connected to the thermal insulation element. i.e. creeping ingress of moisture from the outside of the light well to the inside of the light well is prevented. In addition, the connection area is prevented from acting as a thermal bridge.
Bei einer bevorzugten Ausgestaltung sind das Schachtwandelement und Bodenelement zusammen einstückig aus Beton gegossen und der lichtschachtseitige Abschnitt des Kapillar-Sperrelements ist in das Schachtwandelement und das Bodenelement eingegossen. Hierdurch wird eine passgenaue Aufnahme des Kapillar-Sperrelements in dem Schachtwandelement und Bodenelement erreicht, was wiederum die kapillare Sperrwirkung begünstigt und zu einer Verbesserung der Wasserdichtigkeit führt. Zudem resultiert hieraus eine Formschlussverbindung des Kapillar-Sperrelements in Richtung senkrecht zu dem Schachtwandelement und Bodenelement. Es besteht aber auch die Möglichkeit Schachtwandelement und Bodenelement getrennt betonzugießen und anschließend wasserdicht miteinander zu verbinden.In a preferred embodiment, the shaft wall element and base element are cast together in one piece from concrete and the section of the capillary blocking element on the light shaft side is cast into the shaft wall element and base element. This achieves a precisely fitting accommodation of the capillary blocking element in the shaft wall element and base element, which in turn promotes the capillary blocking effect and leads to an improvement in watertightness. In addition, this results in a form-fitting connection of the capillary blocking element in the direction perpendicular to the shaft wall element and base element. However, there is also the possibility of pouring concrete into the shaft wall element and floor element separately and then connecting them together in a watertight manner.
Bei einer weiteren bevorzugten Ausgestaltung können an dem Kapillar-Sperrelement mindestens ein Vorsprung, und bevorzugt mehrere Vorsprünge, derart vorgesehen sein, dass das Kapillar-Sperrelement in dem Schachtwandelement und Bodenelement formschlüssig gehalten ist. Durch die Vorsprünge ist das Kapillar-Sperrelement, zusätzlich zur Formschlussverbindung in Richtung senkrecht zu dem Schachtwandelement und Bodenelement, auch senkrecht zu den Stirnseiten von dem Schachtwandelement und Bodenelement formschlüssig in dem Betonguss gehalten. D. h. das Kapillar-Sperrelement ist sicher und unverlierbar mit dem Schachtwandelement und Bodenelement verbunden. Hierdurch wird die Handhabung bei der Vor-Ort-Montage vereinfacht.In a further preferred embodiment, at least one projection, and preferably a plurality of projections, can be provided on the capillary blocking element in such a way that the capillary blocking element is held in a form-fitting manner in the shaft wall element and base element. In addition to the positive connection in the direction perpendicular to the shaft wall element and base element, the capillary blocking element is also held positively in the cast concrete perpendicular to the end faces of the shaft wall element and base element by the projections. i.e. the capillary locking element is secure and cannot be lost connected to the shaft wall element and floor element. This simplifies handling during on-site assembly.
Wenn das Kapillar-Sperrelement weiterhin einen dämmungsseitigen Abschnitt aufweist, der sich in dem Wärmedämmelement erstreckt und mit diesem verbunden ist, wird auch der kapillare Transportmechanismus entlang des Verbindungsbereichs zwischen Schachtwandelement und Bodenelement mit dem Wärmedämmelement sowie allgemein im Bereich des Wärmedämmelements wirksam unterbrochen. Durch das Kapillar-Sperrelement erfolgt zudem eine verbesserte Verbindung des Schachtwandelements und Bodenelements mit dem Wärmedämmelement.If the capillary blocking element also has an insulation-side section that extends into the thermal insulation element and is connected to it, the capillary transport mechanism is also effectively interrupted along the connection area between shaft wall element and base element with the thermal insulation element and generally in the area of the thermal insulation element. The capillary blocking element also results in an improved connection of the shaft wall element and floor element to the thermal insulation element.
Vorzugsweise ist das Kapillar-Sperrelement mit dem Wärmedämmelement durch Verkleben unter Verwendung eines Hybriddichtstoffes aus MS Polymer verbunden. Die Verwendung eines Hybriddichtstoffes aus MS Polymer hat den Vorteil, dass er sowohl zur Abdichtung als auch zur Verklebung dient. Der Hybriddichtstoff schafft eine wasserdichte Verbindung zwischen dem Kapillar-Sperrelement und dem Wärmedämmelement. Dies ist auch insofern wichtig, als dass die kapillare Wirkung nicht nur in Richtung senkrecht zur Ebene von Wärmedämmelement und Schachtwandelement sondern in sämtlichen Richtungen vorhanden ist.The capillary blocking element is preferably connected to the thermal insulation element by gluing using a hybrid sealant made from MS polymer. The use of a hybrid sealant made from MS polymer has the advantage that it is used both for sealing and for bonding. The hybrid sealant creates a watertight connection between the capillary barrier element and the thermal insulation element. This is also important insofar as the capillary effect is present not only in the direction perpendicular to the plane of the thermal insulation element and the shaft wall element, but in all directions.
Weiterhin kann das Wärmedämmelement an den Stirnflächen von Schachtwandelement und Bodenelement durchgängig in einer U- oder Bogenform vorgesehen sein. Hierdurch erfolgt eine Wärmedämmung im gesamten Anschlussbereich zwischen Schachtwandelement und Bodenelement mit der Gebäudewand. Dementsprechend kann im Einbauzustand von Schachtwandelement und Bodenelement am Gebäude eine durchgängige Wärmeisolierung zwischen dem Schachtwandelement und Bodenelement mit der Wand, die das Fenster umgibt, erreicht werden.Furthermore, the thermal insulation element can be provided continuously in a U-shape or arc shape on the end faces of the shaft wall element and floor element. This results in thermal insulation in the entire connection area between the shaft wall element and floor element with the building wall. Accordingly, when the shaft wall element and floor element are installed in the building, continuous thermal insulation can be achieved between the shaft wall element and floor element with the wall surrounding the window.
Darüber hinaus ist auch das Kapillar-Sperrelement entlang des Verbindungsbereichs zwischen dem Schachtwandelement und Bodenelement mit dem Wärmedämmelement vorzugsweise durchgängig vorgesehen. Hierdurch erfolgt wiederum eine Unterbrechung der Kapillarwirkung im gesamten Verbindungsbereich zwischen Schachtwandelement und Bodenelement mit der Wärmedämmung. Dementsprechend kann im Einbauzustand von Schachtwandelement und Bodenelement am Gebäude eine verbesserte Wasserdichtigkeit der Verbindung zwischen dem Schachtwandelement und Bodenelement mit dem Wärmedämmelement erreicht werden.In addition, the capillary blocking element is preferably provided continuously along the connection area between the shaft wall element and the base element with the thermal insulation element. This in turn results in an interruption of the capillary effect in the entire connection area between the shaft wall element and the floor element with the thermal insulation. Accordingly, in the installed state of the shaft wall element and floor element on the building, improved watertightness can be achieved the connection between the shaft wall element and floor element can be achieved with the thermal insulation element.
Vorteilhafterweise ist das Kapillar-Sperrelement streifen- oder leistenförmig ausgebildet. Das Kapillar-Sperrelement ist damit gut handzuhaben. Um Lichtschachtanordnungen in unterschiedlichen Größen herzustellen, kann der das Kapillar-Sperrelement bildende Abschnitt in gewünschter Länge von einem endlosen streifenförmigen Vorrat abgezogen und entsprechend abgelängt werden.The capillary blocking element is advantageously designed in the form of a strip or bar. The capillary blocking element is easy to handle with it. In order to produce light well arrangements in different sizes, the section forming the capillary blocking element can be drawn off in the desired length from an endless strip-shaped supply and cut to length accordingly.
Um die bestmögliche Kapillar-Sperrwirkung entlang des Verbindungsbereichs von Schachtwandelement und Bodenelement mit dem Wärmedämmelement sicherzustellen, verläuft das Kapillar-Sperrelement bevorzugt in Ebenen parallel zu den Ebenen der angrenzenden Wände des Schachtwandelements und des Bodenelements. Es besteht jedoch auch die Möglichkeit, dass das Kapillar-Sperrelement leicht schräg zu den Ebenen der angrenzenden Wände des Schachtwandelements und des Bodenelements verläuft. Das Verhältnis der Dicke des Seitenwandelements und Bodenelements zur Dicke des Kapillar-Sperrelements beträgt zwischen 5 und 30, vorzugsweise mindestens 10 und 20. In diesem Bereich erfüllt das Kapillar-Sperrelement optimal beide Funktionen, nämlich die Verbindungsfunktion und die Kapillar-Sperrfunktion.In order to ensure the best possible capillary blocking effect along the connection area of shaft wall element and base element with the thermal insulation element, the capillary blocking element preferably runs in planes parallel to the planes of the adjoining walls of the shaft wall element and base element. However, there is also the possibility that the capillary blocking element runs slightly obliquely to the planes of the adjacent walls of the shaft wall element and the base element. The ratio of the thickness of the side wall element and base element to the thickness of the capillary blocking element is between 5 and 30, preferably at least 10 and 20. In this area, the capillary blocking element optimally fulfills both functions, namely the connection function and the capillary blocking function.
Das Kapillar-Sperrelement besteht vorzugsweise aus einem wasserundurchlässigen und verformbaren Material. Die Wasserdichtigkeit des Materials ist für die Funktion als Kapillar-Sperrelement relevant während die Verformbarkeit des Materials bei der Herstellung der Lichtschachtanordnung zur Anpassung des Kapillar-Sperrelements an den Verlauf der Stirnseiten von Schachtwandelement und Bodenwandelement von Bedeutung ist.The capillary blocking element is preferably made of a water-impermeable and deformable material. The watertightness of the material is relevant for the function as a capillary blocking element, while the deformability of the material is important in the production of the light shaft arrangement for adapting the capillary blocking element to the shape of the end faces of the shaft wall element and the bottom wall element.
Sofern das Kapillar-Sperrelement aus einem Thermoplastmaterial besteht, können Wasserdichtigkeit und elastische Verformbarkeit gewährleistet werden. Bei dem Thermoplastmaterial handelt es sich um einen thermoplastischen Kunststoff. Der Vorteil ist, dass ein thermoplastischer Kunststoff aufgrund seiner Formstabilität in einem Bereich von in etwa - 20°C bis +80°C und seiner Wärmeverformbarkeit durch eine einfache Wärmebehandlung in die U-Form entsprechend den Stirnflächen von Schachtwandelement und Bodenelement gebracht werden kann. Aufgrund der Eigensteifigkeit des thermoplastischen Kunststoffes kann ein formstabiles Kapillar-Sperrelement hergestellt werden. Für den Fall, dass das Kapillar-Sperrelement aus einem Elastomermaterial besteht, verhält sich das Kapillar-Sperrelement aufgrund seiner gummielastischen Eigenschaften flexibel. Eine Temperaturbehandlung, um das Kapillar-Sperrelement eine bestimmte Form, etwa in die U-Form oder Bogenform, zu bringen, ist dann nicht erforderlich.If the capillary blocking element consists of a thermoplastic material, watertightness and elastic deformability can be guaranteed. The thermoplastic material is a thermoplastic synthetic material. The advantage is that a thermoplastic can be brought into the U-shape corresponding to the end faces of the shaft wall element and floor element by a simple heat treatment due to its dimensional stability in a range of approximately -20°C to +80°C and its heat deformability. Due to the inherent rigidity of the thermoplastic material, a dimensionally stable capillary blocking element can be produced. In the event that the capillary locking element consists of an elastomer material, the capillary blocking element behaves flexibly due to its rubber-elastic properties. A heat treatment to give the capillary blocking element a specific shape, such as a U-shape or arc shape, is then not necessary.
Weiterhin ist es bevorzugt, wenn das Wärmedämmelement aus einem Wärmedämmstreifen besteht, der seitlich von zwei Faserzementplatten eingeschlossen ist. Hierdurch wird der Schutz des Wärmedämmstreifens vor Beschädigung sowohl vor dem Einbau als auch im Einbauzustand gewährleistet. Vorzugsweise besteht der Wärmedämmstreifen aus einem extrudierten Polystyrol (XPS), das als Dämmmaterial für die Dämmung von Kelleraußenwänden geeignet ist. Da das XPS-Material auch wasserbeständig ist, kann zudem ein Eindringen von Wasser oder Feuchtigkeit in das Schachtinnere verhindert werden. Darüber hinaus können als Material für den Wärmedämmstreifen auch andere geschäumte Dämmstoffe verwendet werden. Hierbei kann es sich z. B. um expandiertes Polystyrol (EPS) oder um Polyurethan (PUR) handeln. Die Faserzementplatten können mit einer zusätzlichen Oberflächenbeschichtung zur Verhinderung von Witterungseinflüssen und gegen die Aufnahme von Wasser versehen sein. Die Faserzementplatten weisen eine Dichte von mindestens 1.350 kg/m3 auf.Furthermore, it is preferred if the thermal insulation element consists of a thermal insulation strip which is laterally enclosed by two fiber cement panels. This ensures that the thermal insulation strip is protected against damage both before installation and during installation. The thermal insulation strip preferably consists of an extruded polystyrene (XPS), which is suitable as an insulating material for insulating the outer walls of a basement. Since the XPS material is also water-resistant, it is also possible to prevent water or moisture from penetrating the interior of the manhole. In addition, other foamed insulating materials can also be used as material for the thermal insulation strips. This can be z. B. be expanded polystyrene (EPS) or polyurethane (PUR). The fiber cement panels can be provided with an additional surface coating to prevent weather influences and to prevent water absorption. The fiber cement panels have a density of at least 1,350 kg/m 3 .
Das Dichtelement ist vorzugsweise durchgängig entlang der Stirnseite des Wärmedämmelements vorgesehen. Hierdurch erfolgt eine Abdichtung gegen das Eindringen von Wasser oder Feuchtigkeit im gesamten Anschlussbereich des Wärmedämmelements mit der Gebäudewand. Dementsprechend kann im Einbauzustand der Lichtschachtanordnung am Gebäude eine wirksame Abdichtung im Verbindungsbereich des Wärmedämmelements mit der Gebäudewand, die das Fenster umgibt, erreicht werden.The sealing element is preferably provided continuously along the end face of the thermal insulation element. This results in a seal against the ingress of water or moisture in the entire connection area of the thermal insulation element with the building wall. Accordingly, when the light well arrangement is installed in the building, an effective seal can be achieved in the connection area of the thermal insulation element with the building wall that surrounds the window.
Des Weiteren ist es bevorzugt, wenn das Dichtelement streifenförmig ausgebildet ist. Damit ist das Kapillar-Sperrelement gut handzuhaben und kann praktischerweise auch in Rollen zur Fertigung in hohen Stückzahlen bereitgestellt werden. Es muss lediglich noch ein entsprechendes Ablängen erfolgen.Furthermore, it is preferred if the sealing element is designed in the form of a strip. The capillary blocking element is thus easy to handle and can also be made available in rolls for large-scale production. It only has to be cut to length accordingly.
Weiterhin weist in einer bevorzugten Ausgestaltung das Dichtelement mindestens einen Vorsprungabschnitt auf, der sich auf der vom Schachtwandelement und Bodenelement abgewandten Seite erstreckt. Der Vorsprungabschnitt hat den Vorteil, dass er gegen die Gebäudewand gedrückt oder gepresst werden kann. Sind die Gebäudewandflächen nicht eben oder glatt, kann der Vorsprungabschnitt für eine verbesserte Wasserdichtigkeit zum Ausgleich der Unebenheiten gegen die Gebäudewand gedrückt werden. Hierdurch werden sowohl die wasserdichte Montage Vorort als auch der Arbeitsaufwand wesentlich erleichtert. Zudem kann beim Andrücken mehr Druck auf die schmäleren Vorsprungabschnitte aufgebracht werden, sodass die Abdichtung verbessert ist. Wie das Dichtelement ist auch der Vorsprungabschnitt durchgängig, insbesondere in einer U-Form angeordnet. Mit den Vorsprungabschnitten ist die Lichtschachtanordnung schließlich auch mit einem Schutz gegen das Eindringen von gesundheitsschädlichen Radongasen aus dem Erdreich in den Lichtschachtinnenraum versehen.Furthermore, in a preferred embodiment, the sealing element has at least one projection section, which extends on the side facing away from the shaft wall element and base element. The protruding section has the advantage of being held against the building wall can be squeezed or squeezed. If the building wall surfaces are not flat or smooth, the projection portion can be pressed against the building wall to compensate for the unevenness for improved waterproofing. This makes both the watertight on-site assembly and the workload much easier. In addition, more pressure can be applied to the narrower projection portions when pressed, so that the sealing is improved. Like the sealing element, the projection section is also continuous, in particular arranged in a U-shape. Finally, with the protruding sections, the light shaft arrangement is also provided with protection against the ingress of harmful radon gases from the ground into the interior of the light shaft.
Vorzugsweise weist jedoch das Dichtelement mindestens drei Vorsprungabschnitte, die sich auf der vom Schachtwandelement und Bodenelement abgewandten Seite erstrecken. Die Vorsprungabschnitte sind jeweils in Dickenrichtung von Schachtwandelement und Bodenelement beabstandet, wodurch sich zwischen den Vorsprungabschnitten Ausweichräume ergeben, in welche die Vorsprungabschnitte beim Andrücken gegen die Gebäudewand seitlich ausweichen können. Sollten im Einbauzustand zwischen den Vorsprüngen noch Hohlräume vorhanden sein, können diese in vorteilhafter Weise für eine zusätzliche Wärmeisolierung sorgen.However, the sealing element preferably has at least three projection sections which extend on the side facing away from the shaft wall element and base element. The protruding sections are each spaced apart in the thickness direction of the shaft wall element and base element, resulting in deflection spaces between the protruding sections into which the protruding sections can deviate laterally when pressed against the building wall. Should cavities still be present between the projections in the installed state, these can advantageously provide additional thermal insulation.
Mit besonderem Vorteil besteht das Dichtelement aus Moosgummi mit einer Dichte von zwischen 400 g/dm2 und 1000 g/dm2, vorzugsweise von zwischen 400 g/dm2 und 500 g/dm2 Dichte, und mehr bevorzugt von zwischen 400 g/dm2 und 450 g/dm2. Moosgummi verfügt über eine sehr hohe Druckelastizität und ein sehr gutes Rückstellvermögen bei Kälte (Flexibilität bleibt bei einer Temperatur von -40° C über 5 Stunden erhalten). Moosgummi hat überdies eine sehr gute Alterungsbeständigkeit, weshalb es bei auf längere Zeit ausgelegte Anwendungen wie etwa der Montage von Lichtschächten an Gebäudewänden als Material geeignet ist. Moosgummi kann aus Naturkautschuken und/oder aus synthetischen Kautschuken wie z. B. aus Ethylen-Propylen-Dien-Monomer (EPDM), Fluorkautschuk, Silikon oder Chloropren bestehen. Bevorzugt wird jedoch EPDM mit einer Shore A Härte 15° +/- 3° zur Herstellung des Dichtelements verwendet. EPDM verfügt über eine hohe Kompressibilität und gute Dichteigenschaften. Für eine weiter verbesserte Dichteigenschaft kann das Dichtelement zusätzlich mit einer geschlossenen Außenhaut versehen sein. Aufgrund der hohen Druckelastizität kann sich das EPDM-Material bereits unter leichtem Druck fest an die Fläche der Gebäudewand anschmiegen, um eine zuverlässige Abdichtung sicherzustellen und um sich z.B. im Falle der durch Temperaturveränderungen einhergehenden Ausdehnungen von angrenzenden Materialien, wie etwa der Gebäudewand, an die veränderten Gegebenheiten anpassen zu können.With particular advantage, the sealing element consists of foam rubber with a density of between 400 g/dm 2 and 1000 g/dm 2 , preferably of between 400 g/dm 2 and 500 g/dm 2 density, and more preferably of between 400 g/dm 2 and 450 g/dm 2 . Sponge rubber has a very high compressive elasticity and very good resilience in the cold (flexibility is retained for more than 5 hours at a temperature of -40° C). Foam rubber also has very good resistance to aging, which is why it is a suitable material for long-term applications such as installing light wells on building walls. Sponge rubber can be made from natural rubbers and/or synthetic rubbers such as e.g. B. consist of ethylene propylene diene monomer (EPDM), fluororubber, silicone or chloroprene. However, EPDM with a Shore A hardness of 15° +/- 3° is preferably used to produce the sealing element. EPDM has high compressibility and good sealing properties. For a further improved sealing property, the sealing element can also be provided with a closed outer skin. Due to the high pressure elasticity, the EPDM material can already deform under slight pressure cling firmly to the surface of the building wall to ensure reliable sealing and to be able to adapt to the changed conditions, for example in the event of temperature changes accompanying expansion of adjacent materials, such as the building wall.
Darüber hinaus ist das Dichtelement mit dem Wärmedämmelement vorzugsweise durch Verkleben unter Verwendung eines Hybriddichtstoffes aus MS Polymer verbunden. Die Verwendung eines Hybriddichtstoffes aus MS Polymer hat wiederum den Vorteil, dass er sowohl zur Abdichtung als auch zur Verklebung dient. Der Hybriddichtstoff schafft eine wasserdichte Verbindung zwischen dem Dichtelement und dem Wärmedämmelement. Ein weiterer Vorteil des Hybriddichtstoffes ist, dass er nahezu schwundfrei aushärten kann, so dass keine Einschlüsse oder Zwischenräume möglich sind. Zusätzlich oder alternativ kann zwischen dem Dichtelement und dem Wärmedämmelement ein Silikonmaterial eingebracht werden. Da das EPDM-Material des Dichtelements schlecht bis gar nicht verklebbar ist, wird das Silikonmaterial in diesem Fall jedoch nicht als Klebstoff sondern als Füllstoff eingesetzt, um eine Formschlussverbindung zwischen dem Dichtelement und dem Wärmedämmelement herzustellen bzw. zu verbessern und dadurch die Dichtigkeit zu verbessern. Alternativ kann eine Fixierung des Dichtelements an dem Wärmedämmelement aber auch mit Hilfe von Befestigungsmitteln wie etwa Schrauben, Nägel oder Klammern, erfolgen. Es ist jedoch klar, dass durch die Anordnung der Vorsprungabschnitte des Dichtelements in dem Wärmedämmelement und infolge des Andrückens des Lichtschachts gegen die Gebäudewand, wenn der Lichtschacht montiert ist, eine sichere Fixierung des Dichtelements insbesondere senkrecht zu den Stirnflächen von Schachtwandelement und Bodenelement bereits sichergestellt ist. Die Verwendung von Silikonmaterial oder Hybriddichtstoff dient vor allen Dingen zur Abdichtung.In addition, the sealing element is preferably connected to the thermal insulation element by gluing using a hybrid sealant made of MS polymer. The use of a hybrid sealant made from MS polymer has the advantage that it is used both for sealing and for bonding. The hybrid sealant creates a watertight connection between the sealing element and the thermal insulation element. Another advantage of the hybrid sealant is that it can harden with almost no shrinkage, so that no inclusions or gaps are possible. Additionally or alternatively, a silicone material can be introduced between the sealing element and the thermal insulation element. Since the EPDM material of the sealing element is difficult or impossible to bond, the silicone material is not used as an adhesive in this case but as a filler to create or improve a positive connection between the sealing element and the thermal insulation element and thereby improve the tightness. Alternatively, the sealing element can also be fixed to the thermal insulation element with the aid of fastening means such as screws, nails or clips. However, it is clear that the arrangement of the protruding sections of the sealing element in the thermal insulation element and as a result of the light shaft being pressed against the building wall when the light shaft is installed, secure fixing of the sealing element, in particular perpendicular to the end faces of the shaft wall element and floor element, is already ensured. The use of silicone material or hybrid sealant is primarily used for sealing.
Die Erfindung betrifft auch ein Verfahren zur Herstellung einer Lichtschachtanordnung, die insbesondere zur Anordnung vor einem Kellerfenster an einer Hauswand eines Gebäudes dient, wobei die Lichtschachtanordnung einen Lichtschacht, der ein Schachtwandelement mit einem U-förmigen Querschnitt und ein Bodenelement, welches das Schachtwandelement nach unten abschließt, weiterhin ein Wärmedämmelement, das an Stirnflächen von Schachtwandelement und Bodenelement aufgebracht ist, und ein Kapillar-Sperrelement, umfasst, mit folgenden Schritten: Bereitstellen des Wärmedämmelements und des Kapillar-Sperrelements, wobei das Kapillar-Sperrelement einen lichtschachtseitigen Abschnitt aufweist, der von dem Wärmedämmelement abragt; Betongießen des Schachtwandelements und Bodenelements unter Aufnahme des lichtschachtseitigen Abschnitts des Kapillar-Sperrelements derart, dass sich der lichtschachtseitige Abschnitt in dem Schachtwandelement und Bodenelement erstreckt, und Aushärten des gegossenen Schachtwandelements und Bodenelements unter Einschluss des schachtelementseitigen Abschnitts des Kapillar-Sperrelements.The invention also relates to a method for producing a light shaft arrangement, which is used in particular for arrangement in front of a cellar window on a house wall of a building, the light shaft arrangement having a light shaft which has a shaft wall element with a U-shaped cross section and a floor element which closes the shaft wall element at the bottom , further comprising a thermal insulation element, which is applied to the end faces of the shaft wall element and floor element, and a capillary blocking element, with the following steps: providing the thermal insulation element and the capillary blocking element, the capillary blocking element having a section on the light shaft side, which protrudes from the thermal insulation element; Concrete casting of the shaft wall element and base element while receiving the light well-side portion of the capillary barrier element such that the light shaft-side portion extends into the shaft wall element and base element, and curing the cast shaft wall element and base element including the box element-side portion of the capillary barrier element.
Mit dem erfindungsgemäßen Verfahren können Arbeitsschritte bei der Herstellung eingespart werden. Das Betongießen des Schachtwandelement und Bodenelements erfolgt gleichzeitig mit der Schaffung einer Formschlussverbindung zwischen dem Kapillar-Sperrelement, das mit dem Wärmedämmelement verbunden ist, mit dem Schachtwandelement und Bodenelement in einem einzigen Arbeitsschritt. Dementsprechend entfällt jeweils ein separater Schritt zur Anbringung des Kapillar-Sperrelements und zur Anbringung des Wärmedämmelements. Die erforderlichen Herstellungsschritte können im Rahmen der Vorfertigung komplett werkseitig erfolgen.With the method according to the invention, work steps in the production can be saved. The concrete pouring of the shaft wall element and floor element takes place simultaneously with the creation of a positive connection between the capillary locking element, which is connected to the thermal insulation element, with the shaft wall element and floor element in a single work step. Accordingly, a separate step for attaching the capillary blocking element and for attaching the thermal insulation element is eliminated. The necessary manufacturing steps can be carried out completely at the factory as part of the prefabrication.
Vorzugsweise umfasst das Verfahren weiterhin den Schritt des Bereitstellens des Kapillar-Sperrelements mit einem dämmungsseitigen Abschnitt, der in dem Wärmedämmelement aufgenommen und mit dem Wärmedämmelement verbunden ist. Das Wärmedämmelement kann somit bereits mit dem Schritt des Verbindens des Kapillar-Sperrelements mit dem Wärmeelement gleichzeitig auch mit einer Sperre des kapillaren Transportmechanismus im Verbindungsbereich zwischen Schachtwandelement und Bodenelement mit dem Wärmedämmelement sowie im Bereich des Wärmedämmelements selbst ausgestattet werden.Preferably, the method further includes the step of providing the capillary barrier element with an insulation-side portion received in the thermal insulation element and connected to the thermal insulation element. The thermal insulation element can thus already be equipped with the step of connecting the capillary blocking element to the thermal element with a blocking of the capillary transport mechanism in the connection area between shaft wall element and floor element with the thermal insulation element and in the area of the thermal insulation element itself.
Weiterhin umfasst das Verfahren den Schritt des Anbringens von je einer Faserzementplatte an den Seiten des Wärmedämmstreifens derart, dass der Wärmedämmstreifen seitlich von den Faserzementplatten eingeschlossen wird. Der Vorteil ist, dass die Faserzementplatten fest mit dem Wärmedämmstreifen verbunden sind noch bevor das hierdurch entstandene Wärmedämmelement mit dem Schachtwandelement und Bodenelement verbunden wird.Furthermore, the method comprises the step of attaching one fiber cement panel to each side of the thermal insulation strip in such a way that the thermal insulation strip is laterally enclosed by the fiber cement panels. The advantage is that the fiber cement panels are firmly connected to the thermal insulation strip even before the resulting thermal insulation element is connected to the shaft wall element and floor element.
Schließlich umfasst das Verfahren vorzugsweise die folgenden Schritte: Bereitstellen eines Dichtelements, das mindestens einen Vorsprungabschnitt aufweist; und Anordnen und Verkleben des Dichtelements an der dem Schachtwandelement und Bodenelement abgewandten Seite des Wärmedämmelements vor oder nach dem Betongießen des Schachtwandelements und Bodenelements derart, dass sich der Vorsprungabschnitt auf der vom Schachtwandelement und Bodenelement abgewandten Seite des Dichtelements erstreckt. Speziell bei der Alternative, bei der das Dichtelement vor dem Betongießen angebracht wird, kann eine Einheit bestehend aus Wärmedämmelement, Kapillar-Sperrelement und Dichtelement werkseitig in einem einzigen Arbeitsschritt, nämlich dem Betongießen, mit dem Schachtwandelement und Bodenelement verbunden werden. Bei der Alternative, bei der das Dichtelement nach dem Betongießen angebracht wird, kann der Schritt zum Verkleben ebenfalls bereits werkseitig erfolgen.Finally, the method preferably comprises the following steps: providing a sealing element which has at least one projection section; and arranging and gluing the sealing element on the side facing away from the shaft wall element and floor element Side of the thermal insulation element before or after the concrete casting of the shaft wall element and base element such that the projection portion extends on the side facing away from the shaft wall element and base element of the sealing element. Especially with the alternative in which the sealing element is attached before the concrete is poured, a unit consisting of thermal insulation element, capillary blocking element and sealing element can be connected to the shaft wall element and floor element in a single work step, namely concrete pouring. In the alternative, in which the sealing element is attached after the concrete has been poured, the gluing step can also be carried out at the factory.
Weitere Merkmale und Vorteile der vorliegenden Erfindung werden unter Bezugnahme auf die Zeichnungen beschrieben.
- Fig. 1
- ist eine perspektivische Ansicht einer bevorzugten Ausführungsform der Lichtschachtanordnung gemäß der vorliegenden Erfindung;
- Fig. 2
- ist eine Schnittansicht entlang der Linie A-A in
Fig. 1 eines Schachtwandelements des Lichtschachts der Lichtschachtanordnung gemäß der vorliegenden Erfindung; - Fig. 3
- ist eine Explosionsdarstellung der Ansicht in
Fig. 2 ; - Fig. 4
- ist eine vergrößerte Seitenansicht eines Details des Schachtwandelements in
Fig. 2 ; - Fig. 5
- ist eine Schnittansicht des Dichtelements der Lichtschachtanordnung in den
Fig. 1 ,2 und3 ; und - Fig. 6
- ist eine Seitenansicht einer Gießform zur Verwendung bei dem Verfahren zur Herstellung einer Lichtschachtanordnung gemäß der vorliegenden Erfindung.
- 1
- Figure 12 is a perspective view of a preferred embodiment of the light stack assembly in accordance with the present invention;
- 2
- is a sectional view taken along the line AA in
1 a duct wall element of the light duct of the light duct assembly according to the present invention; - 3
- is an exploded view of the view in
2 ; - 4
- Fig. 12 is an enlarged side view of a detail of the shaft wall element in Fig
2 ; - figure 5
- 13 is a sectional view of the sealing member of the light stack assembly in FIGS
1 ,2 and3 ; and - 6
- Figure 12 is a side view of a mold for use in the method of making a light stack assembly in accordance with the present invention.
In
Wie in der perspektivischen Darstellung in
Wie in
Vorliegend ist der Lichtschacht 4 einstückig aus Beton gebildet, d.h. das Schachtwandelement 6 ist mit dem Bodenelement 8 in einem Stück aus Beton gegossen. Jedoch können das Schachtwandelement 6 und das Bodenelement 8 auch getrennte Komponenten sein, die mit Hilfe entsprechender Befestigungsmittel miteinander verbunden sind.In the present case, the
An den Stirnflächen von Schachtwandelement 6 und Bodenelement 8 ist weiterhin ein Wärmedämmelement 22 aufgebracht. Das Wärmedämmelement 22 ist durchgängig entlang der Stirnflächen angeordnet und verläuft entsprechend U-förmig entlang der Stirnflächen. Wiederum auf das Wärmedämmelement 22 aufgebracht ist ein Dichtelement 24. Das Dichtelement 24 ist an der dem Lichtschacht 4 bzw. Schachtwandelement 6 und Bodenelement 8 abgewandten Seite des Wärmedämmelements 22 bzw. an der Stirnseite des Wärmedämmelements 22 vorgesehen. Das Dichtelement 24 bildet den äußersten Abschnitt der Lichtschachtanordnung 2 und dichtet den Innenraum des Lichtschachts 4 im Einbauzustand nach außen, üblicherweise zum umgebenden Erdreich hin, ab.A
Das Wärmedämmelement 22 besteht aus einem Wärmedämmstreifen 26, von dem in
Wie das Wärmedämmelement 22 und das Dichtelement 24 haben auch die Faserzementplatten 28, 30 einen U-förmigen Verlauf. Die Faserzementplatten 28, 30, das Wärmedämmelement 22 und das Dichtelement 24 verlaufen parallel zueinander. Die Faserzementplatten 28, 30 sind streifenförmig gebildet. Darüber hinaus sind die Faserzementplatten 28, 30 jeweils mit den zugeordneten angrenzenden Faserzementplatten des Bodenelements 8 an den jeweiligen Stoßfugen miteinander verklebt, sodass die Stoßfugen abgedichtet sind. An den äußeren Seitenflächen der Seitenwandplatten 10, 12 können Befestigungswinkel zur Befestigung am Mauerwerk eines Gebäudes, z. B. mittels Schrauben oder Bolzen, angebracht sein.Like the
In Bezug auf
Wie weiter zu sehen, erstreckt sich in der Seitenwandplatte 12 und in dem Wärmedämmstreifen 26 ein Kapillar-Sperrelement 34. Das Kapillar-Sperrelement 34 wird von einem im Querschnitt betrachtet flachen rechteckförmigen Profil gebildet. Das Profil ist mittig jeweils in der Seitenwandplatte 12 und in dem Wärmedämmstreifen 26 aufgenommen. Dabei erstreckt sich ein lichtschachtseitiger Abschnitt 35 des Kapillar-Sperrelements 34 in der Seitenwandplatte 12 und ein dämmungsseitiger Abschnitt 36 in dem Wärmedämmstreifen 26. Das Kapillar-Sperrelement 34 erstreckt sich in dem Wärmedämmstreifen 26 in etwa bis zur Hälfte der Gesamterstreckung des Wärmedämmstreifens 26 zwischen Seitenwandplatte 12 und Dichtelement 24.As can further be seen, a
Das Kapillar-Sperrelement 34 ist streifen-, platten- oder leistenförmigen ausgebildet. Wie die Faserzementplatten 28, 30, der Wärmedämmstreifen 26 und das Dichtelement 24, ist auch das Kapillar-Sperrelement 34 durchgängig entlang des Verbindungsbereichs zwischen Seitenwandplatte 12 und Bodenplatte 16 mit dem Wärmedämmstreifen 26 vorgesehen. Wie weiterhin aus der Zusammenschau von
Der dämmungsseitige Abschnitt 36 des Kapillar-Sperrelements 34 ist mit dem Wärmedämmstreifen 26 verbunden. Das Kapillar-Sperrelement 34 ist mit dem Wärmedämmstreifen 26 insbesondere durch Verkleben unter Verwendung eines Hybriddichtstoffes aus MS Polymer verbunden. Zur Verbindung des Dichtelements mit dem Wärmedämmelement kann der Hybriddichtstoff aus MS Polymer auch zwischen dem Schachtwandabschnitt 6 und dem Wärmedämmstreifen 26 und/oder den Faserzementplatten 28, 30 als Dichtmaterial vorgesehen sein. Der Hybriddichtstoff aus MS Polymer ist silikonfrei, zeichnet sich durch eine gute Hafteigenschaft aus, ist witterungsbeständig, und kann fast schwundfrei aushärten. Demgegenüber ist der lichtschachtseitige Abschnitt 35 des Kapillar-Sperrelements 34 in die Seitenwandplatte 12 eingegossen, wie nachfolgend näher beschrieben. Zusätzlich kann auch das Wärmedämmelement 26 oder nur der Dämmstreifen 24 oder es können nur die Faserzementplatten 28, 30 mit der Seitenwandplatte 12, z. B. mittels Verkleben, verbunden sein.The
Das Dichtelement 24 ist in
Bezugnehmend auf die
In der vergrößerten Detailansicht in
Neben der in
Alternativ können an dem Kapillar-Sperrelement 34 auch ein oder mehrere Vorsprünge in Form von Halteschenkeln vorgesehen sein. Der bzw. die Halteschenkel können derart schräg oder rechtwinklig von dem Kapillar-Sperrelement abstehen, dass sie im gegossenen Beton als Widerhaken fungieren. Damit stehen im ausgehärteten Zustand des Betons die Halteschenkel mit der Seitenwandplatte 12 fest im Eingriff.Alternatively, one or more projections in the form of retaining legs can also be provided on the
Unter Verwendung der Gießform 60, die in
Anschließend wird ein Dichtelement 24 bereitgestellt, das mindestens einen Vorsprungabschnitt 40, 42, 44 bzw. 46, 48, 50 aufweist. Das Dichtelement 24 wird nun in dem Formteil-Endabschnitt 64 derart angeordnet, dass die Vorsprungabschnitte 40, 42, 44 in den komplementären Ausnehmungen 68 des Formteil-Endabschnitts 64 aufgenommen sind. Danach wird das Wärmedämmelement 22, das bereits mit dem Kapillar-Sperrelement 34 verbunden wurde, mit dem in dem Formteil-Endabschnitt 64 befindlichen Dichtelement 24 derart zusammengeführt, dass die Vorsprungabschnitte 46, 48, 50 des Dichtelements 24 in den komplementären Ausnehmungen 52, 54, 56 in dem Wärmedämmelement 22 aufgenommen sind. Zusätzlich kann vor dem Zusammenführen von Dichtelement 24 und Wärmedämmelement 22 in mindestens einer der komplementären Ausnehmungen 48 ein Hybriddichtstoff aus MS Polymer 37 zum Abdichten und Verkleben eingebracht werden. Nun sind das Dichtelement 24 und das Wärmedämmelement 22 mit dem Kapillar-Sperrelement 34 zum Betongießen angeordnet. Alternativ können das Dichtelement 24 und das Wärmedämmelement 22 vor dem Anordnen in dem Formteil-Endabschnitt 64 miteinander verbunden werden und als eine Einheit in dem Formteil-Endabschnitt 64 angeordnet werden.A sealing
Des Schachtwandelement 6 und das Bodenelement 8 werden anschließend unter Aufnahme des lichtschachtseitigen Abschnitts 35 des Kapillar-Sperrelements 34 aus Beton gegossen, und zwar derart, dass sich der lichtschachtseitige Abschnitt 35 des Kapillar-Sperrelements 34 in dem Schachtwandelement 6 und Bodenelement 8 erstreckt.The
Schließlich erfolgt das Aushärten des gegossenen Schachtwandelements 6 und Bodenelements 8. Das Aushärten erfolgt dabei unter Schaffung einer Formschlussverbindung des lichtschachtseitigen Abschnitts 35 des Kapillar-Sperrelements 34 mit dem Schachtwandelement 6 und Bodenelement 8.Finally, the cast
Mit dem vorstehenden Verfahren gemäß einer Ausführungsform der Erfindung wurde eine Lichtschachtanordnung 2 hergestellt, die insbesondere zur Anordnung vor einem Kellerfenster an einer Hauswand eines Gebäudes dient, wobei die Lichtschachtanordnung 2 einen Lichtschacht 4, der ein Schachtwandelement 6 mit einem U-förmigen Querschnitt und ein Bodenelement 8, welches das Schachtwandelement 6 nach unten abschließt, weiterhin ein Wärmedämmelement 22, das an Stirnflächen von Schachtwandelement 6 und Bodenelement 8 aufgebracht ist, und ein Kapillar-Sperrelement 34 umfasst.With the above method according to an embodiment of the invention, a
Claims (22)
einem Lichtschacht (4), der ein Schachtwandelement (6) mit einem U- oder bogenförmigen Querschnitt und ein Bodenelement (8), welches das Schachtwandelement (6) nach unten abschließt, aufweist,
einem Wärmedämmelement (22), das an Stirnflächen von Schachtwandelement (6) und Bodenelement (8) aufgebracht ist, und
einem Dichtelement (24), das an der dem Schachtwandelement (6) bzw. dem Bodenelement (8) abgewandten Seite des Wärmedämmelements (22) angeordnet ist,
dadurch gekennzeichnet, dass
weiterhin ein Kapillar-Sperrelement (34) vorgesehen ist, das einen lichtschachtseitigen Abschnitt aufweist, der sich in dem Schachtwandelement (6) und Bodenelement (8) erstreckt, und das mit dem Wärmedämmelement (22) verbunden ist.Light shaft arrangement (2), in particular for arrangement in front of a cellar window on a house wall of a building
a light shaft (4) which has a shaft wall element (6) with a U-shaped or arc-shaped cross section and a base element (8) which closes off the shaft wall element (6) at the bottom,
a thermal insulation element (22) which is applied to the end faces of the shaft wall element (6) and floor element (8), and
a sealing element (24) which is arranged on the side of the thermal insulation element (22) facing away from the shaft wall element (6) or the floor element (8),
characterized in that
furthermore, a capillary blocking element (34) is provided which has a light shaft-side section which extends in the shaft wall element (6) and floor element (8) and which is connected to the thermal insulation element (22).
Bereitstellen des Kapillar-Sperrelements (34) mit einem dämmungsseitigen Abschnitt (36), der in dem Wärmedämmelement (22) aufgenommen und mit dem Wärmedämmelement (22) verbunden ist.The method of claim 19, further comprising:
Providing the capillary blocking element (34) with an insulation-side section (36) which is accommodated in the thermal insulation element (22) and connected to the thermal insulation element (22).
Anbringen von je einer Faserzementplatte (28, 30) an den Seiten des Wärmedämmelements (22) derart, dass das Wärmedämmelement (22) seitlich von den Faserzementplatten (28, 30) eingeschlossen wird.The method of claim 19 or 20, further comprising:
Attaching one fiber cement panel (28, 30) to each side of the thermal insulation element (22) in such a way that the thermal insulation element (22) is laterally enclosed by the fiber cement panels (28, 30).
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Citations (5)
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DE20103200U1 (en) * | 2001-02-22 | 2001-06-13 | Hain Josef Gmbh & Co Kg | Light well |
DE20115404U1 (en) * | 2001-09-18 | 2001-11-22 | Hain Josef Gmbh & Co Kg | Light well |
DE202005000441U1 (en) * | 2005-01-13 | 2005-03-24 | Hieber Alexander | Prefabricated U-shaped concrete component, as a building light shaft, has a seal at the end sides of the legs with a waterproof barrier film and sealing layers |
DE202013100162U1 (en) * | 2013-01-11 | 2013-03-28 | Mea Bausysteme Gmbh | Light shaft with seal |
DE202014005637U1 (en) * | 2014-07-10 | 2014-07-29 | Alexander Hieber | Shaft, in particular light shaft |
-
2020
- 2020-12-18 EP EP20215543.8A patent/EP4015738B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20103200U1 (en) * | 2001-02-22 | 2001-06-13 | Hain Josef Gmbh & Co Kg | Light well |
DE20115404U1 (en) * | 2001-09-18 | 2001-11-22 | Hain Josef Gmbh & Co Kg | Light well |
DE202005000441U1 (en) * | 2005-01-13 | 2005-03-24 | Hieber Alexander | Prefabricated U-shaped concrete component, as a building light shaft, has a seal at the end sides of the legs with a waterproof barrier film and sealing layers |
DE202013100162U1 (en) * | 2013-01-11 | 2013-03-28 | Mea Bausysteme Gmbh | Light shaft with seal |
DE202014005637U1 (en) * | 2014-07-10 | 2014-07-29 | Alexander Hieber | Shaft, in particular light shaft |
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