EP4182513B1 - Mehrschichtiges wandelement zum aufbau von trockenwänden sowie trockenwand mit dem wandelement - Google Patents

Mehrschichtiges wandelement zum aufbau von trockenwänden sowie trockenwand mit dem wandelement Download PDF

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Publication number
EP4182513B1
EP4182513B1 EP21742827.5A EP21742827A EP4182513B1 EP 4182513 B1 EP4182513 B1 EP 4182513B1 EP 21742827 A EP21742827 A EP 21742827A EP 4182513 B1 EP4182513 B1 EP 4182513B1
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European Patent Office
Prior art keywords
layer
wall element
element according
support
layers
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English (en)
French (fr)
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EP4182513A1 (de
Inventor
Stephan Kranz
Benjamin Kaplan
Thomas Schilling
Frank CHRISTMANN
Karl-Hans Bugert
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Saint Gobain Placo SAS
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Saint Gobain Placo SAS
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E04C2/243—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 one at least of the material being insulating
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
    • E04C2/52—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits
    • E04C2/521—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits serving for locating conduits; for ventilating, heating or cooling
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2002/001—Mechanical features of panels
    • E04C2002/004—Panels with profiled edges, e.g. stepped, serrated

Definitions

  • the invention relates to a multi-layer wall element for building up drywalls as well as to a drywall comprising at least one wall element.
  • WO 94/26992 discloses a connecting structure for sandwich panels.
  • the sandwich panels have a mineral wool core provided with skin-like layers on both flat sides.
  • a groove and tongue structure is imparted in the mineral wool core, so that two such panels may be stuck together in the type of a groove and tongue joint.
  • the dimensions of the groove and tongue joint are chosen such that, during the sticking together of two such panels, a compression of the mineral wool core takes place locally at the front side.
  • a heat insulating board in particular a walkable, rectangular heat insulating board which is composed of three board.
  • a core board is formed as a polystyrene hard foam board.
  • a bottom-side board is also formed as a polystyrene hard foam board.
  • a cover board is formed of a cover board that is thinner relative to the other boards and is in particular mineral-bound. The boards are arranged to be offset from each other such that a groove is formed at two sides and a tongue is formed at two sides.
  • AU 2018271239 A1 discloses a load bearing module comprising first sheet member and a second sheet member between which an insulating portion is located.
  • the load bearing function of such a load bearing module is provided by additional metal parts having C-shape in cross-section.
  • US 2011/0203193 A1 discloses a laminated insulated timber having at tongue and groove design at corresponding edges along one direction.
  • WO 2014/033333 A1 discloses a panel having a stepped design along its circumference.
  • an outer side of a drywall to be built up is intended to be workable with usual tools/materials for achieving its surface finish (finished surface quality).
  • the multi-layer wall element is to be capable of providing predefined supply channels.
  • drywalls are built up with the multi-layer wall element in accordance with the invention without additional connecting elements apart from screws.
  • the multi-layer wall element in accordance with the invention is easy and straightforward to process especially in the do-it-yourself field.
  • a drywall is to be indicated which can be built up in a simple and low-cost manner.
  • a multi-layer wall element for building up drywalls comprises: an insulating ply with two flat sides of heat or sound insulating material which have a large surface area relative to front sides, wherein a support layer is placed with an inner flat side of the support layer against each flat side of the insulating ply, wherein a cover layer is placed against each outer flat side of the support layers, wherein the cover layers are, along at least two directions R1, R2 which are oriented parallel to a plane E of the support layers and perpendicular to confining edges of the support layer, offset relative to the support layers by a first offset amount V 1 , V 1' and a second offset amount V 2 , V 2' , each of the first offset amount V 1 , V 1' and the second offset amount V 2 , V 2' being larger than zero, wherein the support layer and the insulating ply form a tongue along a first confining edge and along an opposite second confining edge a groove together with both cover layers, whereas at least two tongues and two
  • the wall elements which each per se already form a piece of a completely finished drywall, may be processed without additional connecting elements.
  • the awkward building up of a post and beam structure which is then finished to form a drywall by its facing with plasterboards and filling the cavity with insulation materials may be omitted.
  • a drywall i.e. for the lowermost row of multi-layer wall elements and/or for the wall elements adjoining an existing wall for building up a drywall it may be useful not to provide such an offset at least on one side, so that near the floor a confining edge of the drywall can be established where both the cover layers and the support layers and the insulating layer are flush with each other.
  • a multi-layer wall element comprising the first offset amount Vi/Vr and the second offset amount V 2 /V 2' in both directions may, of course, be reworked easily by cutting the corresponding regions to form a wall element that is flush on one side.
  • the first offset amount Vi/Vr is larger than the second offset amount V 2 /V 2' .
  • one of the first offset amount Vi/Vr or the second offset amount V 2 /V 2' is larger than the other offset amount
  • tongues of different lengths will result (an offset amount with a larger amount results in a longer tongue than an offset amount with a lower amount).
  • the grooves opposing the corresponding tongues will also be of different depths.
  • the first offset amount Vi/Vr i.e. the offset amount defined as a vertical offset amount in the scope of this application
  • the horizontal offset amount it may, for instance be achieved that a deeper slide-in mount and wider overlapping of two stacked wall elements along their horizontal joint may be achieved.
  • Such enlarged or increased slide-in mount depth along the horizontal confining edges causes only little additional effort for the builder of a drywall since the weight of a wall element supports the mating in the vertical direction. Contrary to this, a weight support does not exist in the direction of vertical joints, so that a lower slide-in mount depth may be expedient there so as to keep the corresponding mating forces low.
  • the first offset amount Vi/Vr may also be smaller than the second offset amount V 2 /V 2' .
  • the first offset amount Vi/Vr is chosen smaller than the second offset amount V 2 /V 2' , i.e. the vertical offset amount smaller than the horizontal offset amount, it is possible to build up drywalls which are particularly bulge-proof in the horizontal direction from multi-layer wall elements modified this way.
  • the first offset amount Vi/Vr is equal to the second offset amount V 2 /V 2' .
  • the slide-in mount depth is, for instance in the case of a square or a rectangular multi-layer wall element, especially with a square element, circumferentially the same, so that the orientation of the wall elements relative to each other need not necessarily be observed.
  • a rectangular wall element it may, for instance, be expedient to raise one of the wall elements on edge, whereas other wall elements are arranged with the broadside down. Since all offset amounts are equal, the slide-in mount depths are equal everywhere.
  • the insulating ply, the support layer and the cover layer are square or rectangular in a viewing direction on flat sides of the plies/layers.
  • At least the support layer and the cover layer are of equal size in a plan view on the flat sides thereof.
  • the surface area of the insulating ply is, in the top view on the flat side thereof, of equal size or slightly larger than that of the support layer, i.e. with oversize.
  • the oversize has to be chosen such that, as a function of the bulk density and/or the elasticity of the insulating ply, a form fit of the support layer is achieved.
  • the glue may bridge a small gap of 1-2 mm.
  • the support layer is formed as a fiber reinforced board, in particular as a plaster fiberboard.
  • a support layer in particular a fiber reinforced board, especially a support layer formed in particular as a plaster fiber board, has proven of value.
  • a fiber reinforced board provides sufficiently high bulge-proofness and expansibility.
  • a board may provide sufficient strength for stapling-screwing connections or for pre-assembly screwing connections which will be explained further below.
  • the cover layer is formed as a paper or cardboard laminated plasterboard.
  • the insulating ply is formed of a fiber material, in particular a mineral fiber material or a glass fiber material, and as a board-shaped insulating ply which comprises, in a non-installed unprocessed state, a bulk density of 50 kg/m 3 or more, in particular of 60 kg/m 3 and more.
  • the insulating ply itself does not merely function as an insulating ply, but can also be provided for a strength-endowing layer being sufficiently pressure and/or tension-proof especially in the thickness direction.
  • EPS expanded polystyrene
  • XPS extruded polystyrene
  • PUR polyurethane
  • PIR polyisocyanurate
  • the insulating ply is glued with the support layers over part of the surface area or over the full surface area.
  • the insulating ply is glued with the support layers e.g. over the full surface area or over part of the surface area. This may especially also contribute to the fact that the multi-layer wall element can be provided as a single manageable component.
  • the cover layers are glued with the support layers over part of the surface area or over the full surface area.
  • a gluing of the cover layers with the support layers over the full surface area or over part of the surface area or punctually may be particularly recommendable so as to obtain a compact wall element as a whole.
  • cover layers may be connected mechanically with the support layers. Clamping is particularly preferred here.
  • front sides of the support layer contact each other and support themselves against each other in the stuck condition of two multi-layer wall elements.
  • the cut geometry is chosen such that the support layers absorb and support the generated upsetting forces for a substantial part in particular in the vertical direction.
  • the support layers absorb and support the generated upsetting forces for a substantial part in particular in the vertical direction.
  • front sides of adjacent cover layers form a gap therebetween in the stuck condition of two wall elements.
  • front sides of the insulating plies contact each other in the stuck condition of two wall elements.
  • the multi-layer wall element is adapted with respect to its cut such that an individual element preferably weighs less than 25 kg, in particular preferably less than 20 kg.
  • the support layer and/or the insulating ply have groove-shaped channels for accommodating supply lines, e.g. electrical supply lines and/or water/heating supply lines.
  • a multi-layer wall element 1 in accordance with the invention serves for building up a drywall 2 (cf. Figure 2 ).
  • the construction of the wall element 1 in accordance with the invention will be explained in detail in the following by means of Figure 1 .
  • the wall element 1 in accordance with the invention is formed in the embodiment pursuant to Figure 1 with multiple layers, in particular with 5 layers, and comprises a central insulating ply 3.
  • a respective support layer 5 is positioned against flat sides 4 of the insulating ply 3, wherein an inner flat side 5a of the support layer 5 faces the flat side 4 of the insulating ply 3.
  • Flat sides are generally meant to be main sides of board-shaped elements whose surface area is distinctly larger in relation to front sides 6 of the board-shaped elements.
  • Respective cover layers 7 are placed against an outer flat side 5b of the support layers 5.
  • Figure 1 merely one of the cover layers 7 is illustrated. The other one is hidden due to the perspective illustration.
  • the cover layer 7 and/or the cover layers 7 is/are offset in at least two directions R1, R2 from the corresponding support layers 5.
  • the directions R1 and R2 run parallel to or with parallel offset to an imagined plane E of the support layer 5 which in turn runs parallel to one of the inner flat side 5a or the outer flat side 5b.
  • the directions R1 and R2 be defined as running perpendicular to confining edges 8. This results in a first offset amount V 1 along the direction R1 and a second offset amount V 2 along the direction R2 by which the cover layer 7 is offset relative to the support layer 5.
  • a first offset amount Vi/Vr equal according to amount and a second offset amount V 2 /V 2' equal according to amount exists between the cover layer 7 and the support layer 7. Due to an arrangement of this kind the support layers 5 form, together with the insulating ply 3, a tongue 10 at the respective confining edges 8 illustrated in Figure 1 since they project along the confining edges 8 over the cover layers 7.
  • the first offset amount V 1 and the second offset amount V 2 and correspondingly the first offset amount Vr and the second offset amount V 2' are larger than zero, so that at least two tongues 10 and at least two grooves 11 are formed per multi-layer wall element 1.
  • the first offset amount V 1 may be larger according to amount than the second offset amount V 2 (the same applies for the corresponding offset amounts V 1' , V 2' ).
  • the afore-mentioned first offset amounts V 1 , V 1' may also be smaller than the second offset amounts V 2 and V 2' . Likewise, they may be equal.
  • Matching wall elements 1 can always be stuck on top of each other or into each other.
  • a smaller first offset amount Vi/Vr in the vertical direction as compared to the horizontal second offset amount V 2 / V 2' may, for instance, be useful in the case of a plurality of wall elements 1 mated in advance in the horizontal direction, so that a smaller slide-in mount depth in the vertical direction facilitates the placing of a "row of wall elements" of a plurality of wall elements 1 mated in advance in the horizontal direction.
  • the plies/layers In a viewing direction on flat sides of the plies/layers (3; 5; 7) they are preferably of rectangular or square design. Any other outside cuts that may be mated to full-faced walls without gaps are theoretically also imaginable. Hexagonal edge cuts may, for instance, also be imaginable, whereas square or rectangular elements should probably be the ones that can best be handled in practice.
  • a plurality of wall elements 1 are stacked as intended (cf. Figure 2 ), the dimensions of the individual layers (5, 7) and plies (insulating ply 3) are coordinated such that the support layers 5 of two adjacent wall elements 1 contact each other both in the horizontal and in the vertical directions, wherein preferably a material bonded connection, especially a gluing 12, is provided for building up a drywall 2.
  • a gap 13 is provided between the cover layers 7 of adjacent wall elements 1, so that the dimensions of the cover layers 7 are expediently chosen to be somewhat smaller for achieving this object than the extension in terms of surface area of the support layers 5.
  • the gap 13 may be expedient so that, for instance, during the jointing of the drywall 2 the achieving of the desired finished surface quality is somewhat easier to accomplish with a gap and/or the jointing material is retained better in the gap 13.
  • a gap 13a may also be provided. It is, however, preferred that adjacent insulating plies 3 of adjacent wall elements 1 contact each other so as to avoid possible acoustic bridges due to gaps 13a generated.
  • the density of the fiber material available in a finished wall element 2 may deviate both to the top and to the bottom.
  • the manufacturing of a wall element 1 in accordance with the invention it is, however, an object to incorporate the insulating ply 3 both in the thickness direction and in two-dimensional directions of the insulating ply 3 preferably unbraced, i.e. preferably with unchanged bulk density, so that usually the indicated bulk density of, for instance, 50 kg/m 3 or 60 kg/m 3 or more is approximately maintained.
  • the insulating ply 3 is glued with the support layers 5 at the flat sides 4 thereof. Specifically if, as mentioned above, the required minimum bulk densities of the fiber materials are used, it is surprising that such gluing between the support layers and the insulating ply does not necessitate an additional stiffening of the wall element 1 in the thickness direction if a suitable insulating material (fiber material) is chosen.
  • a suitable insulating material fiber material
  • an individual wall element does not weigh more than 25 kg, preferably not more than 20 kg, so as to render its manageability on a building site, especially also in constricted environments such as, for instance, in the case of renovations of old buildings, easy to handle.
  • the intended gluing 12 contribute substantially to the overall stability of the drywall 2 built.
  • a possibly applied glue which may, for instance, be an epoxy resin glue, an acrylic glue, or another suitable glue which is especially suited for fiber boards
  • a possibly applied glue which may, for instance, be an epoxy resin glue, an acrylic glue, or another suitable glue which is especially suited for fiber boards
  • suitable drywall connecting elements such as e.g. screws 15, to connect two adjacent wall elements 1 in the groove and tongue region thereof with one another, wherein the screws 15 are retained well in the higher-strength material of the support layer 5 as compared to the material of the cover layer 7.
  • Figure 3 illustrates such an assembly situation by way of example in a direction extending in the horizontal direction (first offset amount Vi).
  • Figure 3 also illustrates by way of example an embodiment (upper wall element 1) in which the second offset amount V 2 is smaller in the horizontal direction than the offset amount in the vertical direction.
  • Figure 3 illustrates an embodiment in which, for instance, a channel 16 is formed in one of the insulating plies 3 which may, for instance, be provided for the laying of cables or other supply lines (e.g. water lines).
  • a channel 16 is formed in one of the insulating plies 3 which may, for instance, be provided for the laying of cables or other supply lines (e.g. water lines).
  • such a channel 16 may also be provided in other plies, for instance, in the support layer 5, which is, however, not shown in the Figures.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Building Environments (AREA)

Claims (16)

  1. Mehrschichtiges Wandelement zur Erstellung von Trockenbauwänden (2)
    - mit einer Dämmlage (3) mit zwei relativ zu Stirnseiten (6) großflächigen Flachseiten (4) aus wärme- und oder schalldämmenden Material,
    - wobei gegen jede Flachseite (5a; 5b) der Dämmlage (3) eine Tragschicht (5) mit einer inneren Flachseite (5a) der Tragschicht (5) gesetzt ist,
    - wobei gegen jede äußere Flachseite (5b) der Tragschichten (5) eine Deckschicht (7) gesetzt ist, wobei
    die Deckschichten (7) entlang wenigstens zwei Richtungen (R1, R2), die parallel zu einer Ebene (E) der Tragschicht (5) und senkrecht zu Begrenzungskanten (8) der Tragschichten (5) ausgerichtet sind, um einen ersten Versatzbetrag (V1/V1') und einen zweiten Versatzbetrag (V2/V2') bezüglich der Tragschicht (5) versetzt sind, wobei sowohl der erste Versatzbetrag (V1/V1') als auch der zweite Versatzbetrag (V2/V2') größer als Null ist, wobei die Tragschichten (5) und die Dämmlage (3) entlang einer ersten Begrenzungskante (8) eine Feder (10) und entlang einer gegenüberliegenden zweiten Begrenzungskante (8) zusammen mit beiden Deckschichten (7) eine Nut (11) bilden, wobei zumindest zwei Federn (10) und zwei Nuten (11) gebildet werden.
  2. Mehrschichtiges Wandelement nach Anspruch 1, dadurch gekennzeichnet, dass der erste Versatzbetrag (V1/V1') kleiner, größer oder gleich dem zweiten Versatzbetrag (V2/V2') ist.
  3. Mehrschichtiges Wandelement nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Dämmlage (3), die Tragschicht (5) und die Deckschicht (7) in einer Blickrichtung auf die Flachseiten (4; 5a; 5b) der Lagen/Schichten quadratisch oder rechteckig sind.
  4. Mehrschichtiges Wandelement nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass wenigstens die Tragschicht (5) und die Deckschicht (7) in einer Draufsicht auf deren Flachseiten gleich groß sind.
  5. Mehrschichtiges Wandelement nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Dämmlage (3) in der Draufsicht auf deren Flachseite (4) flächenmäßig die gleiche Größe wie die Tragschicht (5) oder ein Übermaß zu der Tragschicht (5) aufweist.
  6. Mehrschichtiges Wandelement nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Tragschicht (5) als faserverstärkte Platte, insbesondere als Gipsfaserplatte ausgebildet ist.
  7. Mehrschichtiges Wandelement nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Deckschicht (7) als papier- oder pappkaschierte Gipsplatte ausgebildet ist.
  8. Mehrschichtiges Wandelement nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Dämmlage (3) aus einem Faserwerkstoff, insbesondere einem mineralischen Faserwerkstoff oder einem Glasfaserwerkstoff ausgebildet ist und als plattenförmige Dämmlage (3) in einem nicht verbauten Rohzustand eine Netto-Rohdichte von 50 kg/m3 oder mehr, insbesondere von 60 kg/m3 und mehr aufweist.
  9. Mehrschichtiges Wandelement nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Dämmlage (3) mit den Tragschichten (5) teil-oder vollflächig verklebt ist.
  10. Mehrschichtiges Wandelement nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Deckschichten (7) mit den Tragschichten (5) teil- oder vollflächig verklebt oder mechanisch verbunden, insbesondere geklammert sind.
  11. Mehrschichtiges Wandelement nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass Stirnseiten (6) der Tragschicht (5) derart ausgebildet und eingerichtet sind, dass sie sich im zusammengestecktem Zustand zweier mehrschichtiger Wandelemente (1) gegenseitig berühren und gegeneinander abstützen.
  12. Mehrschichtiges Wandelement nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass Stirnseiten (6) benachbarter Deckschichten (7) derart ausgebildet und eingerichtet sind, dass sie im zusammengesteckten Zustand zweier Wandelemente (1) zwischen sich einen Spalt (13) bilden.
  13. Mehrschichtiges Wandelement nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass Stirnseiten (6) der Dämmlagen (3) derart ausgebildet und eingerichtet sind, dass sie sich im zusammengesteckten Zustand zweier Wandelemente (1) berühren.
  14. Mehrschichtiges Wandelement nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass das mehrschichtige Wandelement (1) hinsichtlich seines Beschnittes derart angepasst ist, dass ein Einzelelement bevorzugt weniger als 25 kg, besonders bevorzugt weniger als 20 kg wiegt.
  15. Mehrschichtiges Wandelement nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Tragschicht (5) und/oder die Dämmlage (3) nutförmige Kanäle zur Aufnahme von Versorgungsleitungen, z. B. elektrische Versorgungsleitungen und/oder Wasser-/Heizungsversorgungsleitungen aufweisen.
  16. Trockenbauwand mit wenigstens einer mehrschichtigen Wandelement nach einem der Ansprüche 1 bis 16.
EP21742827.5A 2020-07-15 2021-07-13 Mehrschichtiges wandelement zum aufbau von trockenwänden sowie trockenwand mit dem wandelement Active EP4182513B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020118711.4A DE102020118711A1 (de) 2020-07-15 2020-07-15 Mehrschichtiges Wandelement zur Erstellung von Trockenbauwänden sowie Trockenbauwand aufweisend das Wandelement
PCT/EP2021/069490 WO2022013232A1 (en) 2020-07-15 2021-07-13 Multi-layer wall element for building up drywalls as well as drywall comprising the wall element

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EP4182513A1 EP4182513A1 (de) 2023-05-24
EP4182513B1 true EP4182513B1 (de) 2024-04-24

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