EP3927909B1 - Device to be arranged in a floor construction - Google Patents
Device to be arranged in a floor construction Download PDFInfo
- Publication number
- EP3927909B1 EP3927909B1 EP19709368.5A EP19709368A EP3927909B1 EP 3927909 B1 EP3927909 B1 EP 3927909B1 EP 19709368 A EP19709368 A EP 19709368A EP 3927909 B1 EP3927909 B1 EP 3927909B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- decoupling element
- base plate
- flooring
- screed
- floor construction
- 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.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims description 35
- 238000009408 flooring Methods 0.000 claims description 50
- 239000000463 material Substances 0.000 claims description 35
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 13
- 239000011094 fiberboard Substances 0.000 claims description 11
- 229910052602 gypsum Inorganic materials 0.000 claims description 11
- 239000010440 gypsum Substances 0.000 claims description 11
- 239000012774 insulation material Substances 0.000 claims description 9
- 239000002657 fibrous material Substances 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 239000011490 mineral wool Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 description 9
- 239000000758 substrate Substances 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 239000002023 wood Substances 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/02005—Construction of joints, e.g. dividing strips
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
- E04F15/14—Construction of joints, e.g. dividing strips
- E04F15/142—Dividing strips or boundary strips
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
Definitions
- the invention relates to a device to be arranged in a floor construction according to the independent claim 1.
- the invention contributes to the technical field of floor constructions and in particular to those constructions, which can comprise a layer of screed but is not limited thereto (e.g. oriented strand boards (OSB), high density fiberboards (HDF), medium density fiberboards (MDF), low density fiberboards (LDF) or plywood are also possible).
- OSB oriented strand boards
- HDF high density fiberboards
- MDF medium density fiberboards
- LDF low density fiberboards
- the invention relates to the problem of impact sound reduction (or footfall insulation) and airborne sound insulation in vertical and horizontal directions in such a floor construction as well as the mechanical stability of the layer of screed, e.g. prefabricated screed.
- a dampening layer can be positioned beneath hard flooring. Additionally sound insulating strips can be positioned between the flooring and adjacent walls to decrease the sound transmission to neighbouring rooms, e.g. to the rooms below. via the walls.
- a floor construction can be arranged on a floor substrate or raw floor (respectively a raw ceiling).
- a layer of insulating material which might comprise, or allow to fix, an underfloor heating can be arranged on the floor substrate.
- a layer of screed can be arranged atop the insulating layer as prefabricated screed (also known as dry screed, e.g. gypsum fibre board) or as screed mortar (e.g. flowing screed).
- the above mentioned prefabricated screed or screed mortar may comprise calcium sulfate or cementitious materials (e.g. cement, Portland cement, etc.).
- floor covers such as tile, parquet, vinyl, carpet, etc. can be disposed atop a prefabricated screed or screed mortar.
- Structurally similar elements to the device of this invention are used as expansion or movement joints to avoid crack formation in concrete floors or different screeds.
- these joints generally do not sufficiently decouple acoustically.
- particularly prefabricated screed elements tend to buckle and tilt on impact, because the necessary load transfer of the free ends is often not taken into account.
- the object of the invention is therefore to provide a device to be arranged in a floor construction comprising screed (or any of the other options mentioned above) which overcomes or at least reduces the disadvantages known from the prior art and in particular allows for an easy assembly, for decreasing the sound transmission between adjacent flooring sections, as well as for improving the mechanical stability.
- the invention comprises a device according to claim 1.
- the base plate allows for improving the mechanical stability in the floor construction, wherein the first flooring section and the second flooring section are preferably adjacent flooring sections, more preferably adjacent screed sections, even more preferably adjacent prefabricated screed sections.
- the base plate and the first decoupling element are separate or formed in one piece.
- the base plate and the first decoupling element can be attached to each other, in particular by using separate fastening elements or an adhesive material.
- the material of the base plate e.g. a rigid material
- the material of the first decoupling element e.g. a flexible material
- the base plate comprises a recess, e.g. a groove.
- the recess may have a size and shape to be capable of engaging a first end portion of the first decoupling element in a form fit.
- the first end portion has two edges, which can engage in a rectangular recess.
- the recess extends along the entire base plate and accommodates the first end portion along the entire length.
- the recess is arranged at a top surface of the base plate in a distance of more than 20 mm, in particular more than 40 mm from an edge portion.
- the distance is sufficient to allow for arranging a portion of a flooring section thereon, preferably on both sides of the first decoupling element. Arranging the flooring section on the base plate with a large contact area between them results in a good mechanical stability of the flooring section.
- the maximum distance from the recess to the edge portion preferably does not exceed 500 mm, more preferably it does not exceed 200 mm.
- the recess can be in a central position but other positions are possible, too.
- the first decoupling element is arranged perpendicular, i.e. at a right angle, to the top surface of the base plate. This arrangement allows the first decoupling element to protrude the flooring sections arranged on both sides of the first decoupling element.
- the base plate comprises a rigid material, which is a cementitious material, or a calcium sulfate material.
- the material is preferably chosen such as to have a high strength to receive compressive forces, which result from supporting the flooring section.
- the rigid base may have a sufficient thickness to support the edges of the first and the second section and may thus prevent deformation and/or stress of the overlying flooring by static or dynamic load.
- the base plate comprises a gypsum fiberboard, a gypsum plasterboard, a wood board or a wooden fiberboard.
- a gypsum fiberboard is particularly preferred, because of its inherent strength and the frequent use in dry construction.
- the base plate has a thickness in the range of 8 mm to 20 mm, preferably in the range of 9 mm to 13 mm. The mentioned range allows for sufficient stability.
- the first decoupling element may have a thickness of 8 mm to 20 mm, preferably a thickness of 10 to 14 mm.
- the first decoupling element has openings arranged therein.
- the openings are of a size and shape to be capable of accommodating underfloor heating pipes therein.
- the device further comprises a second decoupling element arranged on the top surface of the base plate adjacent to the first decoupling element, preferably on both sides.
- the second decoupling element covers more than 40 %, more preferably more than 60 %, even more preferably more than 80% of the surface area on each side of the base plate.
- the second decoupling element covers less than 40 %, e.g. as little as 10 % or less, depending on the material used. Highly efficient material could be applied punctually or as a thin strip or as a strip with recesses. If a flooring section, preferably prefabricated screed, rests on the base plate, the second decoupling element can allow for decreasing the sound transmission from the prefabricated screed to the base element.
- the device further comprises a third decoupling element arranged on the bottom surface of the base plate, i.e. the surface opposite to the first (and the second) decoupling element.
- the third decoupling element comprises a footfall insulation element.
- the device comprises at least a first decoupling element. It may optionally further comprise a second and/or third decoupling element.
- the first decoupling element is made of a flexible material
- the second decoupling element and/or the third decoupling element may each independently be made of a flexible material, in particular a natural flexible material or a synthetic flexible material or combination thereof.
- first decoupling element, the second decoupling element and/or the third decoupling element may each independently be made of one of the following group: mineral wool, polyethylene, natural fiber material, synthetic insulation material, EPS, XPS, expanded rubber, or any combinations thereof.
- the three decoupling elements only first, first and second, first and third, and particularly preferred first, second and third
- Another preferred aspect of the invention relates to a floor construction, comprising at least a first flooring section and at least a second flooring section, wherein a device as described herein is arranged in between, i.e. e.g. in between a first flooring section and a second flooring section.
- the flooring sections are screed, comprising a cementitious material or a calcium sulfate material.
- the flooring sections are screed, preferably prefabricated screed.
- Another aspect of the invention relates to the use of a device as described herein for decreasing sound transmission between flooring sections and/or for stabilizing flooring sections, preferably the edges of flooring sections.
- Fig. 1 illustrates a device 1, which is to be arranged in a floor construction (see Fig. 2 -5 , reference 10) in between a first flooring section and a second flooring section.
- the device is preferably arranged in a floor construction comprising a prefabricated screed in a manner that a base plate 2 is arranged under adjacent prefabricated screed sections and the first decoupling element 3 is arranged in between adjacent prefabricated screed sections.
- the base plate 2 improves the mechanical stability of the floor construction by supporting the flooring sections, in particular the edges of the flooring sections.
- the first decoupling element 3 acoustically decouples the first and second flooring section.
- the advantages of the invention are not limited to flooring sections of prefabricated screed.
- the shown device 1 comprises a base plate 2 of a sufficient width to be capable of supporting the first and second flooring sections (see Fig. 2 - 5 ; reference 11, 12) at their respective side edges.
- a first decoupling element 3 Attached to the base plate 2 is a first decoupling element 3, which is of a material (i.e. soft and flexible) to be capable of decreasing the sound transmission when mounted between the first and second flooring sections.
- the base plate 2 and the first decoupling element 3 are fixed to each other in a form fit.
- the base plate 2 has a recess 21 of a rectangular cross-section with a size, which allows for form fittingly accommodating a first end portion 31 of the first decoupling element 3.
- the first end portion 31 is shown in Fig. 1 as the lower edge of the first decoupling element 3.
- the recess 21 is arranged at a top surface 211 of the base plate 2, which extends along the entire base plate 2 in a distance of more than 20 mm (preferably more than 40 mm) from both opposite edge portions 212.
- the first decoupling element 3 is arranged perpendicular to the top surface 211 of the base plate 2.
- the base plate 2 comprises a rigid material (i.e. cementitious material, or calcium sulfate material).
- the base plate 2 comprises a gypsum fiberboard, a gypsum plasterboard, a wood board or a wooden fiber board.
- the base plate 2 has a thickness in the range of 8 mm to 20 mm (preferably 9 mm to 13 mm).
- the illustrated first decoupling element 3 is made of a flexible material, which can be a natural material or a synthetic material.
- the first decoupling element 3 is made of one of the following group: mineral wool, polyethylene, natural fiber material, synthetic insulation material, EPS, XPS, expanded rubber or combinations thereof.
- the first decoupling element 3 might comprise openings of a size and shape to be capable of accommodating underfloor heating pipes therein.
- the size and shape is to be chosen inter alia according to the size of the room and the dimensions of the underfloor heating in which the floor construction is to be arranged.
- a second decoupling element 4 is arranged on both sides of the base plate 2 adjacent to the first decoupling element 3.
- the second decoupling element 4 may be made of one of the following group: mineral wool, polyethylene, natural fiber material, synthetic insulation material, EPS, XPS, expanded rubber or combinations thereof, preferably of expanded rubber.
- the second decoupling element 4 allows for reducing the transmission of sound from the flooring section to the base element 2.
- the illustrated example further comprises a third decoupling element 5 arranged on the bottom surface 213 of the base plate 2.
- the third decoupling element 5 may be made of one of the following group: mineral wool, polyethylene, natural fiber material, synthetic insulation material, EPS, XPS, expanded rubber or combinations thereof, preferably of synthetic insulation material. Therefore, good results concerning footfall insulation are achieved.
- Fig. 2 a first example for a floor construction 10 is shown, in which the device of Fig. 1 only with the first decoupling element is arranged.
- the device 1 is arranged with the base plate 2 directly on the floor substrate 6.
- the base plate 2 has a width in the range of 50 mm to 200 mm (e.g. 100 mm) and is a gypsum fiber board of a thickness in the range of 8 mm to 20 mm (e.g. 9 mm or 13 mm) with a central recess (see reference 21 in Fig. 1 ).
- the shown base plate 2 provides a surface of a width in the range of 40 mm to 50 mm (e.g. 44 mm) to arrange a respective flooring section thereon. In between the first flooring section 11 and the second flooring section 12, the first decoupling element 3 is arranged.
- the first decoupling element 3 is a mineral wool strip of a width in the range of 8 mm to 20 mm (e.g. 12 mm) and a height in the range of 50 mm to 150 mm (e.g. 100 mm).
- the first flooring section 11 and the second flooring section 12 are a calcium sulfate based prefabricated screed of gypsum fiber material with a thickness in the range of 15 mm to 25 mm (e.g. 18 mm or 23 mm). On top of the prefabricated screed sections 11 and 12, a floor covering may be arranged.
- a second example for a floor construction 10 is shown, in which the device 1 of Fig. 1 with the first and a special form of the second decoupling element is arranged.
- a decoupling element 13 preferably a footfall insulation element is integrally formed at the first screed section 11 and the second screed section 12 which are for example gypsum fiber boards having an insulation material fixed at the lower surface.
- the decoupling element 13 corresponds to the second decoupling element 4.
- the decoupling element 13 is preferably made of the same material as the second decoupling element 4, e.g. natural fiber material.
- a third example for a floor construction 10 is shown, in which the device 1 of Fig. 1 with the first and the third decoupling element is arranged.
- the illustrated example further comprises a third decoupling element 5 arranged on the bottom surface of the base plate 2, e.g. made of synthetic insulation material.
- the third decoupling element 5 is in direct contact with the floor substrate 6 and may preferably be present for footfall insulation.
- a fourth example for a floor construction 10 is shown, in which the device 1 of Fig. 1 with the first and the second decoupling element is arranged.
- a second decoupling element 4 is arranged on both sides.
- the second decoupling element 4 allows for reducing the transmission of sound from the flooring sections 11, 12 to the base element 2, i.e. by use of an expanded rubber.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Floor Finish (AREA)
Description
- The invention relates to a device to be arranged in a floor construction according to the
independent claim 1. - The invention contributes to the technical field of floor constructions and in particular to those constructions, which can comprise a layer of screed but is not limited thereto (e.g. oriented strand boards (OSB), high density fiberboards (HDF), medium density fiberboards (MDF), low density fiberboards (LDF) or plywood are also possible). The invention relates to the problem of impact sound reduction (or footfall insulation) and airborne sound insulation in vertical and horizontal directions in such a floor construction as well as the mechanical stability of the layer of screed, e.g. prefabricated screed.
- In construction, there is an increase in efforts to reduce sound transmission within and between rooms and/or storeys of a building. New norms such as DIN 4109-1:2018-01 specify sound transmission limits, particularly for apartment buildings, hotels and hospitals, that are often not achieved. To reduce the sound transmission, e.g. the vertical sound transmission, a dampening layer can be positioned beneath hard flooring. Additionally sound insulating strips can be positioned between the flooring and adjacent walls to decrease the sound transmission to neighbouring rooms, e.g. to the rooms below. via the walls.
- For example, a floor construction can be arranged on a floor substrate or raw floor (respectively a raw ceiling). A layer of insulating material which might comprise, or allow to fix, an underfloor heating can be arranged on the floor substrate. A layer of screed can be arranged atop the insulating layer as prefabricated screed (also known as dry screed, e.g. gypsum fibre board) or as screed mortar (e.g. flowing screed). Among others, the above mentioned prefabricated screed or screed mortar may comprise calcium sulfate or cementitious materials (e.g. cement, Portland cement, etc.). Typically, floor covers such as tile, parquet, vinyl, carpet, etc. can be disposed atop a prefabricated screed or screed mortar.
- Structurally similar elements to the device of this invention are used as expansion or movement joints to avoid crack formation in concrete floors or different screeds. However, these joints generally do not sufficiently decouple acoustically. In addition, particularly prefabricated screed elements tend to buckle and tilt on impact, because the necessary load transfer of the free ends is often not taken into account.
- In conventional floor constructions it is known to arrange a resilient partition strip at expansion joints in the screed layer of a floor construction. For example, in the state of the art,
DE 197 44 350 A1 discloses a strip that is fixed by a U-shaped fastening bracket which cannot separate adjacent screed sections acoustically. The fastening bracket is of a solid material and allows the propagation of sound waves along the plane of the surface of the floor construction. This results in poor impact sound and poor airborne sound properties of the floor construction. Another disadvantage is that the fastening bracket has no means to support a screed element from below. Hence, the use of these fastening brackets in e.g. a dry screed layer would result in the dry screed elements sinking into the insulation layer below, especially in the case of a vertical impact on the edge of the dry screed element. - Moreover, it is known from
DE 295 18 574 U1 to arrange a T-shaped profile to form an expansion joint in a screed. The T-shaped profile comprises a first cardboard angle element and a second cardboard angle element in between which an insulation material is placed. However, this expansion joint requires many parts and the cardboard material is disadvantageous at the construction site because of its structural weakness, in particular in the presence of water. Also, this expansion joint cannot prevent the edges of the screed from breaking off or sinking into the insulation below. The documentDE102014014503 A1 also discloses a profile for expansion joint. - The document
FR2966848 A1 claim 1. - The object of the invention is therefore to provide a device to be arranged in a floor construction comprising screed (or any of the other options mentioned above) which overcomes or at least reduces the disadvantages known from the prior art and in particular allows for an easy assembly, for decreasing the sound transmission between adjacent flooring sections, as well as for improving the mechanical stability.
- The object of the invention is solved by a device according to the subject matter of the
independent claim 1. - The subject matter of the dependent claims relate to preferred technical aspects.
- The invention comprises a device according to
claim 1. - The base plate allows for improving the mechanical stability in the floor construction, wherein the first flooring section and the second flooring section are preferably adjacent flooring sections, more preferably adjacent screed sections, even more preferably adjacent prefabricated screed sections.
- According to a preferred technical aspect, the base plate and the first decoupling element are separate or formed in one piece. In case of a separate construction, the base plate and the first decoupling element can be attached to each other, in particular by using separate fastening elements or an adhesive material. In the case that the base plate and the first decoupling element are formed in one piece, the material of the base plate (e.g. a rigid material) is different to the material of the first decoupling element (e.g. a flexible material).
- Preferably, the base plate comprises a recess, e.g. a groove. The recess may have a size and shape to be capable of engaging a first end portion of the first decoupling element in a form fit. In one example, the first end portion has two edges, which can engage in a rectangular recess. Preferably, the recess extends along the entire base plate and accommodates the first end portion along the entire length.
- Advantageously, the recess is arranged at a top surface of the base plate in a distance of more than 20 mm, in particular more than 40 mm from an edge portion. The distance is sufficient to allow for arranging a portion of a flooring section thereon, preferably on both sides of the first decoupling element. Arranging the flooring section on the base plate with a large contact area between them results in a good mechanical stability of the flooring section. The maximum distance from the recess to the edge portion preferably does not exceed 500 mm, more preferably it does not exceed 200 mm. The recess can be in a central position but other positions are possible, too.
- According to another advantageous aspect, the first decoupling element is arranged perpendicular, i.e. at a right angle, to the top surface of the base plate. This arrangement allows the first decoupling element to protrude the flooring sections arranged on both sides of the first decoupling element.
- The base plate comprises a rigid material, which is a cementitious material, or a calcium sulfate material.
- The material is preferably chosen such as to have a high strength to receive compressive forces, which result from supporting the flooring section. The rigid base may have a sufficient thickness to support the edges of the first and the second section and may thus prevent deformation and/or stress of the overlying flooring by static or dynamic load.
- In another preferred aspect, the base plate comprises a gypsum fiberboard, a gypsum plasterboard, a wood board or a wooden fiberboard. A gypsum fiberboard is particularly preferred, because of its inherent strength and the frequent use in dry construction. According to a preferred aspect, the base plate has a thickness in the range of 8 mm to 20 mm, preferably in the range of 9 mm to 13 mm. The mentioned range allows for sufficient stability.
- According to a preferred aspect, the first decoupling element may have a thickness of 8 mm to 20 mm, preferably a thickness of 10 to 14 mm.
- According to a preferred aspect, the first decoupling element has openings arranged therein. The openings are of a size and shape to be capable of accommodating underfloor heating pipes therein.
- In another preferred aspect, the device further comprises a second decoupling element arranged on the top surface of the base plate adjacent to the first decoupling element, preferably on both sides. Preferably, the second decoupling element covers more than 40 %, more preferably more than 60 %, even more preferably more than 80% of the surface area on each side of the base plate. However, it is also conceivable that the second decoupling element covers less than 40 %, e.g. as little as 10 % or less, depending on the material used. Highly efficient material could be applied punctually or as a thin strip or as a strip with recesses. If a flooring section, preferably prefabricated screed, rests on the base plate, the second decoupling element can allow for decreasing the sound transmission from the prefabricated screed to the base element.
- It is advantageous, if the device further comprises a third decoupling element arranged on the bottom surface of the base plate, i.e. the surface opposite to the first (and the second) decoupling element. In one example, the third decoupling element comprises a footfall insulation element.
- The device comprises at least a first decoupling element. It may optionally further comprise a second and/or third decoupling element. The first decoupling element is made of a flexible material, the second decoupling element and/or the third decoupling element may each independently be made of a flexible material, in particular a natural flexible material or a synthetic flexible material or combination thereof.
- It is particularly preferred that the first decoupling element, the second decoupling element and/or the third decoupling element may each independently be made of one of the following group: mineral wool, polyethylene, natural fiber material, synthetic insulation material, EPS, XPS, expanded rubber, or any combinations thereof. According to a preferred aspect of the present invention, it is further possible that many combinations of the three decoupling elements (only first, first and second, first and third, and particularly preferred first, second and third) each made from different or the same materials are present in the device as described.
- Another preferred aspect of the invention relates to a floor construction, comprising at least a first flooring section and at least a second flooring section, wherein a device as described herein is arranged in between, i.e. e.g. in between a first flooring section and a second flooring section.
- Particularly preferred, the flooring sections are screed, comprising a cementitious material or a calcium sulfate material. In another preferred aspect, the flooring sections are screed, preferably prefabricated screed.
- Another aspect of the invention relates to the use of a device as described herein for decreasing sound transmission between flooring sections and/or for stabilizing flooring sections, preferably the edges of flooring sections.
- In the following, the invention will be explained in more detail with reference to the drawings. Like reference numerals denote similar features throughout the drawings. The drawings depict:
- Fig. 1
- a device comprising three decoupling elements (first decoupling element, second decoupling element and third decoupling element) to be arranged in a floor construction in between a first flooring section and a second flooring section according to an embodiment of the invention;
- Fig. 2
- a floor construction according to a first example in which the device of
Fig. 1 with only the first decoupling element is arranged; - Fig. 3
- a floor construction according to a second example in which the device of
Fig. 1 is arranged with the first and a special form of the second decoupling element; - Fig. 4
- a floor construction according to a third example in which the device of
Fig. 1 is arranged with the first and the third decoupling element; and - Fig. 5
- a floor construction according to a fourth example in which the device of
Fig. 1 is arranged with the first and the second decoupling element. -
Fig. 1 illustrates adevice 1, which is to be arranged in a floor construction (seeFig. 2 -5 , reference 10) in between a first flooring section and a second flooring section. The device is preferably arranged in a floor construction comprising a prefabricated screed in a manner that abase plate 2 is arranged under adjacent prefabricated screed sections and thefirst decoupling element 3 is arranged in between adjacent prefabricated screed sections. Hereby, thebase plate 2 improves the mechanical stability of the floor construction by supporting the flooring sections, in particular the edges of the flooring sections. In addition, thefirst decoupling element 3 acoustically decouples the first and second flooring section. In any case, the advantages of the invention are not limited to flooring sections of prefabricated screed. - The shown
device 1 comprises abase plate 2 of a sufficient width to be capable of supporting the first and second flooring sections (seeFig. 2 - 5 ;reference 11, 12) at their respective side edges. - Attached to the
base plate 2 is afirst decoupling element 3, which is of a material (i.e. soft and flexible) to be capable of decreasing the sound transmission when mounted between the first and second flooring sections. - The
base plate 2 and thefirst decoupling element 3 are fixed to each other in a form fit. - The
base plate 2 has arecess 21 of a rectangular cross-section with a size, which allows for form fittingly accommodating afirst end portion 31 of thefirst decoupling element 3. Thefirst end portion 31 is shown inFig. 1 as the lower edge of thefirst decoupling element 3. Therecess 21 is arranged at atop surface 211 of thebase plate 2, which extends along theentire base plate 2 in a distance of more than 20 mm (preferably more than 40 mm) from bothopposite edge portions 212. In this example, thefirst decoupling element 3 is arranged perpendicular to thetop surface 211 of thebase plate 2. - In the shown example, the
base plate 2 comprises a rigid material (i.e. cementitious material, or calcium sulfate material). - It is of particular advantage when the
base plate 2 comprises a gypsum fiberboard, a gypsum plasterboard, a wood board or a wooden fiber board. In the shown example, thebase plate 2 has a thickness in the range of 8 mm to 20 mm (preferably 9 mm to 13 mm). - The illustrated
first decoupling element 3 is made of a flexible material, which can be a natural material or a synthetic material. For example, thefirst decoupling element 3 is made of one of the following group: mineral wool, polyethylene, natural fiber material, synthetic insulation material, EPS, XPS, expanded rubber or combinations thereof. - According to a variant, which needs no further illustration, the
first decoupling element 3 might comprise openings of a size and shape to be capable of accommodating underfloor heating pipes therein. Hence, the size and shape is to be chosen inter alia according to the size of the room and the dimensions of the underfloor heating in which the floor construction is to be arranged. - In the shown example, at the
top surface 211 of the base plate 2 asecond decoupling element 4 is arranged on both sides of thebase plate 2 adjacent to thefirst decoupling element 3. In this example, thesecond decoupling element 4 may be made of one of the following group: mineral wool, polyethylene, natural fiber material, synthetic insulation material, EPS, XPS, expanded rubber or combinations thereof, preferably of expanded rubber. Thesecond decoupling element 4 allows for reducing the transmission of sound from the flooring section to thebase element 2. - The illustrated example further comprises a
third decoupling element 5 arranged on thebottom surface 213 of thebase plate 2. In this example, thethird decoupling element 5 may be made of one of the following group: mineral wool, polyethylene, natural fiber material, synthetic insulation material, EPS, XPS, expanded rubber or combinations thereof, preferably of synthetic insulation material. Therefore, good results concerning footfall insulation are achieved. - In
Fig. 2 a first example for afloor construction 10 is shown, in which the device ofFig. 1 only with the first decoupling element is arranged. - In the illustrated
floor construction 10, thedevice 1 is arranged with thebase plate 2 directly on thefloor substrate 6. Thebase plate 2 has a width in the range of 50 mm to 200 mm (e.g. 100 mm) and is a gypsum fiber board of a thickness in the range of 8 mm to 20 mm (e.g. 9 mm or 13 mm) with a central recess (seereference 21 inFig. 1 ). The shownbase plate 2 provides a surface of a width in the range of 40 mm to 50 mm (e.g. 44 mm) to arrange a respective flooring section thereon. In between thefirst flooring section 11 and thesecond flooring section 12, thefirst decoupling element 3 is arranged. At the sides of thefirst decoupling element 3 anotherdecoupling element 8, preferably a footfall insulation element is arranged. Thefirst decoupling element 3 is a mineral wool strip of a width in the range of 8 mm to 20 mm (e.g. 12 mm) and a height in the range of 50 mm to 150 mm (e.g. 100 mm). Thefirst flooring section 11 and thesecond flooring section 12 are a calcium sulfate based prefabricated screed of gypsum fiber material with a thickness in the range of 15 mm to 25 mm (e.g. 18 mm or 23 mm). On top of theprefabricated screed sections - In
Fig. 3 , a second example for afloor construction 10 is shown, in which thedevice 1 ofFig. 1 with the first and a special form of the second decoupling element is arranged. - In this example, a
decoupling element 13, preferably a footfall insulation element is integrally formed at thefirst screed section 11 and thesecond screed section 12 which are for example gypsum fiber boards having an insulation material fixed at the lower surface. In this special embodiment thedecoupling element 13 corresponds to thesecond decoupling element 4. Thus, thedecoupling element 13 is preferably made of the same material as thesecond decoupling element 4, e.g. natural fiber material. - In
Fig. 4 , a third example for afloor construction 10 is shown, in which thedevice 1 ofFig. 1 with the first and the third decoupling element is arranged. - The illustrated example further comprises a
third decoupling element 5 arranged on the bottom surface of thebase plate 2, e.g. made of synthetic insulation material. Thethird decoupling element 5 is in direct contact with thefloor substrate 6 and may preferably be present for footfall insulation. - In
Fig. 5 , a fourth example for afloor construction 10 is shown, in which thedevice 1 ofFig. 1 with the first and the second decoupling element is arranged. - At the top surface of the base plate 2 a
second decoupling element 4 is arranged on both sides. Thesecond decoupling element 4 allows for reducing the transmission of sound from theflooring sections base element 2, i.e. by use of an expanded rubber. - However, combinations of the examples as shown above are possible as long as they fall within the scope of the appended claims, and may have further advantages.
Claims (16)
- Device (1) to be arranged in a floor construction (10) in between a first flooring section (11) and a second flooring section (12), the device (1) comprising a base plate (2) capable of supporting the first and second flooring section (11, 12) and attached to the base plate (2) a first decoupling element (3) capable of decreasing the sound transmission between the first and second flooring section (11, 12),wherein the first decoupling element (3) is made of a flexible material,characterized in thatthe base plate (2) comprises a rigid material, which is a cementitious material or a calcium sulfate material.
- Device (1) according to claim 1, wherein the base plate (2) and the first decoupling element (3) are separate or formed in one piece.
- Device (1) according to claim 1 or 2, wherein the base plate (2) comprises a recess (21), the recess (21) having a size and shape to be capable of engaging a first end portion (31) of the first decoupling element (3) in a form fit.
- Device (1) according to claim 3, wherein the recess (21) is arranged at a top surface (211) of the base plate (2) in a distance of more than 20 mm, in particular more than 40 mm from an edge portion (212).
- Device (1) according to any of claims 1 to 4, wherein the first decoupling element (3) is arranged perpendicular to the top surface (211) of the base plate (2).
- Device (1) according to any one of the preceding claims, wherein the base plate (2) comprises a gypsum fiberboard or a gypsum plasterboard.
- Device (1) according to any one of the preceding claims, wherein the base plate (2) has a thickness in the range of 8 mm to 20 mm, preferably in the range of 9 mm to 13 mm.
- Device (1) according to any one of the preceding claims, wherein the first decoupling element (3) has openings arranged therein, the openings are of a size and shape to be capable of accommodating underfloor heating pipes therein.
- Device (1) according to any one of the preceding claims, further comprising a second decoupling element (4) arranged on the top surface (211) of the base plate (2) adjacent to the first decoupling element (3), preferably on both sides.
- Device (1) according to any one of the preceding claims, further comprising a third decoupling element (5) arranged on a bottom surface (213) of the base plate (2).
- Device (1) according to claims 9 and/or 10, wherein the first decoupling element (3), as well as the second decoupling element (4) and/or the third decoupling element (5) are each independently made of a flexible material, in particular a natural flexible material or a synthetic flexible material or combination thereof.
- Device (1) according to claims 9, 10 or 11, wherein the first decoupling element (3), the second decoupling element (4) and/or the third decoupling element (5) are each independently made of one of the following group: mineral wool, polyethylene, natural fiber material, synthetic insulation material, EPS, XPS, expanded rubber or any combinations thereof.
- Floor construction (10) comprising at least a first flooring section (11) and second flooring section (12), characterized in that it further comprises a device (1) according to any one of the preceding claims which is arranged in between,
- Floor construction (10) according to claim 13, wherein the flooring sections (11, 12) are screed, comprising a cementitious material or calcium sulfate material.
- Floor construction (10) according to claim 13, wherein the flooring sections (11, 12) are screed, preferably prefabricated screed.
- Use of a device (1) according to any of the claim 1-12 for decreasing sound transmission between flooring sections and/or for stabilizing flooring sections, preferably the edges of flooring sections.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2019/000048 WO2020169168A1 (en) | 2019-02-19 | 2019-02-19 | Device to be arranged in a floor construction |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3927909A1 EP3927909A1 (en) | 2021-12-29 |
EP3927909C0 EP3927909C0 (en) | 2024-04-03 |
EP3927909B1 true EP3927909B1 (en) | 2024-04-03 |
Family
ID=65686792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP19709368.5A Active EP3927909B1 (en) | 2019-02-19 | 2019-02-19 | Device to be arranged in a floor construction |
Country Status (2)
Country | Link |
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EP (1) | EP3927909B1 (en) |
WO (1) | WO2020169168A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2966848A1 (en) * | 2010-11-03 | 2012-05-04 | Christophe Cailleau | Device for delimitation of vegetation area and surrounding area in e.g. park, has partition strip connected by one of its longitudinal edges to longitudinal line of face of elongate sole plate to form sole portions |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29518574U1 (en) | 1995-11-23 | 1996-03-14 | Schnepf Waltraud | Expansion joint and shuttering profile for screeds |
DE19744350A1 (en) | 1997-02-11 | 1998-08-20 | Helmut Bornemann | Resilient jointing strip for cast floor expansion joints |
DE102014014503A1 (en) * | 2013-12-17 | 2015-06-18 | Kingspan Gefinex Gmbh | Floor construction with expansion joint strip |
DE202017104270U1 (en) * | 2017-07-18 | 2018-10-24 | Ardex Anlagen Gmbh | Panel storage for a plate-shaped flooring and Bodenbelagsanordung with a plate storage |
-
2019
- 2019-02-19 WO PCT/EP2019/000048 patent/WO2020169168A1/en active Application Filing
- 2019-02-19 EP EP19709368.5A patent/EP3927909B1/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2966848A1 (en) * | 2010-11-03 | 2012-05-04 | Christophe Cailleau | Device for delimitation of vegetation area and surrounding area in e.g. park, has partition strip connected by one of its longitudinal edges to longitudinal line of face of elongate sole plate to form sole portions |
Also Published As
Publication number | Publication date |
---|---|
WO2020169168A1 (en) | 2020-08-27 |
EP3927909C0 (en) | 2024-04-03 |
EP3927909A1 (en) | 2021-12-29 |
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