WALL ELEMENT FOR THERMAL INSULATION OF AN INTERIOR WALL SURFACES

Description

[0001] The invention relates to a wall element for thermal insulation of an interior wall surface comprising an elastic insulation panel.

[0002] Furthermore, the invention relates to a method for thermal insulation of an interior wall surface, wherein the method comprises at least one repetition of the following steps: Providing a wall element with an elastic insulation board; attaching the wall element to an interior wall surface, wherein a first end face of the elastic insulation panel is flush with a second end face of another elastic insulation panel of an already attached wall element.

[0003] Not least due to steadily rising energy costs and a greater awareness of the threats posed by climate change, increasing energy efficiency in all areas is becoming increasingly important. Heating is becoming a particular focus in this context because, on the one hand, large amounts of energy must be used, but on the other hand, energy-saving measures are sometimes relatively easy to implement. According to the Austrian Energy Agency, both the heating costs and the associated CO2 emissions of a renovated building can be 50 percent lower than those of an unrenovated building. In addition to renovating doors and windows, for example, heat loss through exterior walls can be reduced by thermally insulating them. Typically, this involves attaching insulation to the exterior wall surface. The insulation must be weatherproof or appropriately clad.If an existing building is subsequently provided with such insulation, a relatively high effort and associated costs can arise.

[0004] Alternatively, or in addition to installing insulation on the exterior wall surface, thermal insulation can be installed on an interior wall surface. This is often simpler and more cost-effective than insulating the exterior wall surface. This is partly because the requirements for thermal insulation in terms of weather resistance are less stringent indoors, and partly because installing thermal insulation on individual floors is easier than insulating an entire exterior building, and can therefore be performed by laypeople.

[0005] For example, a surface covering for walls is known from US Pat. No. 3,385,743 A. The surface covering comprises a veneer layer supported by a paper layer. The paper layer has a polyethylene layer that provides a barrier to moisture and heat. Furthermore, an adhesive layer is provided, which is protected by a removable release liner. To adhere the surface covering to a wall, the release liner is removed.

[0006] DE 20 2006 001 433 U1 describes a thin-layer covering for floors, walls, and ceilings with a supple underlayer and a premium surface layer with real wood veneer. A carrier layer and thermal insulation are provided. Adequate stability of the thin-layer covering is ensured by a sublayer structure.

[0007] CN 2016 49 320 U discloses a decorative composite panel for thermal insulation. The composite panel comprises several layers bonded together. It includes an adhesive layer, an insulation layer, a waterproof layer, a fiberglass layer, and a decorative element.

[0008] A disadvantage of conventional coverings is that gaps between individual elements are not completely sealed. For example, humidity can penetrate into a gap between two flush paper or fiberglass elements. Therefore, the joints must be sealed in a separate step to ensure continuous insulation. Furthermore, conventional coverings exhibit little or no flexibility, making them difficult or impossible to install on curved wall sections.

[0009] A wall for thermal and acoustic insulation is also known from CN 208 518 195 U. The thermal and acoustic insulation wall comprises a thermally insulating inner core, a wooden frame, a horizontal wooden batten, a vertical wooden batten, a longitudinal wooden batten, a connector, a bolt, a baffle, and a skin panel.

[0010] CN 106 013 659 A shows a wall panel. The exterior of the panel is covered with a wooden base layer and a soft sheath.

[0011] EP 1 690 997 B1 shows a ceiling system with replaceable panels. A flexible ceiling panel is disclosed that can be folded or bent while being inserted into an opening in a support grid of a ceiling of a building.

[0012] KR 100 980 142 B1 shows a buffer layer connection structure for a floor formed beneath a final mortar layer and configured to block floor impact sound while supporting an upper load.

[0013] CN 211 369 095 U discloses a rock wool connecting plate comprising a plurality of rock wool strips connected to one another. Through holes are formed in the rock wool strips.

[0014] Furthermore, self-adhesive, flexible insulation mats made of rubber are generally state of the art. Due to their high flexibility, they are versatile and can be attached to water pipes, heating systems, or even walls, for example. The low thermal conductivity and high water vapor diffusion resistance of rubber prevent energy losses and prevent the penetration of water vapor and its interaction with the object to be insulated. Due to the elasticity of rubber, it is possible to install two insulation mats next to each other in such a way that no gap is created between them. This eliminates the need for separate gluing or covering of joints or gaps.

[0015] The high flexibility of the insulation mats is advantageous for attaching them to sharply curved objects such as pipes with a relatively small diameter, for example only a few centimeters or decimeters. However, this flexibility has a disadvantage when attaching them to walls, as handling larger sections of a flexible insulation mat is not easy. For example, to attach an insulation mat flat to a wall, each point of the insulation mat must essentially be pressed against the wall separately due to its flexibility. Accordingly, mounting it on a wall is laborious and sometimes only possible with the help of a ladder in order to properly attach higher sections of the insulation mat. In addition, the flexibility and bendability make it difficult to handle the loose insulation mat and to align it on the wall.

[0016] It is therefore an object of the invention to alleviate disadvantages of the prior art and to provide a wall element for thermal insulation of interior wall surfaces which can be easily attached to flat as well as curved interior wall surfaces.

[0017] The object of the invention is achieved by a wall element according to claim 1 and a method according to claim 13. Preferred embodiments are specified in the dependent claims.

[0018] The wall element according to the invention has at least two strip-shaped slats, wherein the at least two strip-shaped slats are spaced apart from one another and arranged parallel to one another on a front side of the elastic insulation board, so that the elastic insulation board is mechanically stabilized by the strip-shaped slats, wherein the strip-shaped slats comprise a wood material.

[0019] In the method according to the invention for thermally insulating an interior wall surface, the wall element has at least two strip-shaped slats, wherein the at least two strip-shaped slats are spaced apart from one another and arranged parallel to one another on a front side of the elastic insulation panel in order to mechanically stabilize the elastic insulation panel during installation. In the method for thermally insulating the interior wall surface, an adhesive surface is provided on a rear side of the elastic insulation panel, wherein the rear side is a side of the elastic insulation panel facing away from the front side, wherein the adhesive surface is covered with a protective film, wherein the installation of the wall element comprises adhering the wall element using the adhesive surface, wherein the method further comprises the following step before the installation of the wall element: Remove the protective film from the adhesive surface.

[0020] Compared to manually applying an adhesive, removing the protective film is significantly easier. This provides a simple method for thermally insulating an interior wall surface.

[0021] The wall element can be used to thermally insulate an interior wall surface. The interior wall surface can, for example, be a wall surface inside a building. The interior wall surface can be part of an exterior wall, namely the side of the exterior wall facing inside the building. The interior wall surface (or wall surface for short) can also be part of a wall that separates two rooms or two residential units within a building. To provide an interior wall surface with thermal insulation, at least one wall element can be attached to the interior wall surface. Typically, it is necessary to attach several wall elements next to each other to insulate an entire interior wall surface. Attaching several smaller wall elements is easier than attaching a single large wall element.

[0022] The elastic insulation board comprises an insulating material, such as rubber or polyurethane foam. The elastic insulation board can be designed as a multi-layer structure. For example, the elastic insulation board can comprise layers of rubber and aluminum foil. In the following, the terms "elastic insulation board" and "insulation board" are used synonymously. The term "insulation board" therefore refers to the "elastic insulation board" and vice versa. To mechanically stabilize the insulation board during installation of the wall element, the wall element has at least two strip-shaped slats. The at least two strip-shaped slats are spaced apart from one another and arranged parallel to one another on a front side of the elastic insulation board. For example, the strip-shaped slats are glued to the front side of the elastic insulation layer.The strip-shaped slats can, for example, be bars with a substantially rectangular, particularly square, cross-section. The strip-shaped slats comprise a wood-based material. In the following, the terms "strip-shaped slat" and "slat" are used synonymously. The term "slat" therefore refers to the "strip-shaped slat," and vice versa.

[0023] The elastic insulation board is also flexible and can therefore be easily attached to curved walls. For example, a wall element can be provided that extends over the entire height of a vertical and flat interior wall surface. For example, the interior wall element can have a length of 1.5 meters to 3 meters, whereby the length of the wall element can correspond, for example, to the height of a room and thus to the height of an interior wall surface. The slats can be aligned parallel to the long side. If the wall element is attached to the interior wall surface, the slats can be aligned vertically from top to bottom parallel to the interior wall surface. Despite the length of the wall element and the height of the interior wall surface, the slats mean that it is not necessary to use a ladder when attaching the wall element.The mechanical stabilization provided by the slats along their length and consequently along the height of the interior wall surface allows the wall element to be easily attached to the interior wall surface. For example, a normal force can be exerted on individual slats, which is then transferred to the insulation board. The slats thus provide stability to the wall element and simplify installation even on flat interior wall surfaces.

[0024] The insulation panel, and consequently the entire wall element, can be bent perpendicular to the main axis of the parallel slats. This makes it particularly easy to install the wall element on curved interior wall surfaces, such as the lateral surfaces of a cylindrical shaft. The slats can be aligned parallel to the direction along which the interior wall surface exhibits no curvature—in the case of a cylindrical shaft, parallel to the main axis of the cylindrical shaft. For example, the wall element can be rotated accordingly to ensure the alignment of the slats. The slats thus also simplify the installation of the wall element on curved interior wall surfaces.

[0025] For thermal insulation of the interior wall surface, a wall element with an elastic insulation panel is provided. The wall element has at least two strip-shaped slats, wherein the at least two strip-shaped slats are spaced apart from one another and arranged parallel to one another on a front side of the elastic insulation panel in order to mechanically stabilize the elastic insulation panel during installation. The wall element is attached to the interior wall surface. A first end face of the elastic insulation panel is flush with a second end face of another elastic insulation panel of an already attached wall element. The first end face and the second end face are perpendicular, in particular perpendicular, to the front side of the elastic insulation panel. The first and the second end faces are each side surfaces of the insulation panel. The shape of the insulation panel can, for example, essentially correspond to a cuboid.In this case, the end faces are essentially normal to the front face, with the front face being parallel to the main extension plane of the insulation board. The insulation board has a back face, with the back face being a side of the insulation board facing away from the front face. The back face can be essentially parallel to the front face. The shape of the insulation board can, for example, correspond to a parallelepiped, with the front and back faces being rectangular. The side faces run along the circumference of the insulation board. The first and second end faces can, for example, be parallel to the main axes of the slats. The first and second end faces can each enclose an angle with the main extension plane of the insulation board such that the sum of these two angles is 180°, with both angles being greater than 0°.When two wall elements are placed side by side, the first end face of one wall element and the second end face of an adjacent wall element are flush with each other. By attaching several adjacent wall elements to an interior wall surface, continuous thermal insulation of the interior wall surface can be achieved.

[0026] An adhesive surface, in particular formed by double-sided adhesive tape, is provided on the back of the insulation board. The adhesive surface is covered with a protective film. The back is a side of the insulation board facing away from the front, the adhesive surface being suitable for permanently fixing the wall element to an interior wall surface. The adhesive surface with the protective film can significantly simplify the installation of the wall element overall, since no separate adhesive needs to be applied to the interior wall surface and / or the wall element during attachment of the wall element. The mechanical stabilization of the insulation board due to the slats also simplifies the installation of the wall element in conjunction with the adhesive surface. On the one hand, the mechanical stabilization makes it easier to remove the protective film from the adhesive surface on the elastic insulation board.On the other hand, the slats prevent the insulation board from rolling up on its own, which also prevents parts of the insulation board from sticking to other parts of the same insulation board.

[0027] The slats can, for example, have a body made of wood-based material. The body can have a back side, whereby the back of the slat can be glued to the front of the flexible insulation board. The slat can further have a front side opposite the back side and two longitudinal side surfaces. A decorative layer can be arranged on the body, whereby the decorative layer can extend at least over the front side of the slat. In addition, the decorative layer can extend over at least one longitudinal side surface of the slat. For example, the decorative layer can comprise a real wood veneer. Alternatively, the decorative layer can comprise a printed plastic film.

[0028] For example, the insulation board can extend laterally in a longitudinal direction and laterally in a transverse direction, whereby the insulation board extends further in the longitudinal direction than in the transverse direction, whereby the strip-shaped slats are aligned parallel to the longitudinal direction. The ratio between length (in the longitudinal direction) and width (in the transverse direction) can be greater than 1.5, in particular greater than or equal to 2. The insulation board can, for example, have a length of 0.4 m (meters) to 3 m in the longitudinal direction. For example, the insulation board can have a width of 0.2 m to 1 m in the transverse direction. The thickness of the insulation board can, for example, be in a range from 0.3 cm to 2.5 cm. The thickness of the insulation board relates to an extension of the insulation board normal to the main extension plane of the insulation board. The slats can be aligned parallel to the longitudinal direction in order to stabilize the insulation board in the direction of its greatest extension, i.e. in the longitudinal direction.The slats can have a width in the transverse direction of, for example, 2 cm to 4 cm. The length of the slats in the longitudinal direction can essentially correspond to the length of the insulation board in the longitudinal direction. The slats can therefore be significantly longer than they are wide in order to ensure mechanical stabilization, preferably in the longitudinal direction, while at the same time maintaining flexibility transversely. Due to the relatively small width and the normal spacing of the slats to one another (i.e. between the slats), the insulation board and consequently the wall element can be bent in a direction normal to the main axis of the slats, in particular in the transverse direction. For example, the elastic insulation board can be water vapor diffusion-inhibiting, in particular water vapor diffusion-tight. For thermal insulation, it is advantageous if the thermal conductivity of the insulation material is as low as possible in order to avoid a thermal bridge between the interior and the wall as far as possible.It is also advantageous if as little humidity as possible reaches the interior wall surface. If humidity exceeds a level that can, for example, diffuse through the wall, it could condense on the (cold) interior wall surface and thus damage the wall and / or the wall element. In particular, condensed humidity could lead to the formation of mold. On the other hand, due to the high heat capacity of water molecules and the diffusion properties of the water molecules, humidity can effectively contribute to temperature equalization. In order to prevent precisely this temperature equalization between the interior space and the wall via the interior wall surface, water vapor diffusion should therefore at least be inhibited and ideally prevented. For this purpose, the insulation board can be water vapor diffusion-inhibiting, for example with a water vapor diffusion-equivalent air layer thickness (sd value) of at least 100 m (meters).In particular, the elastic insulation board can be water vapor-tight, for example, with a water vapor diffusion-equivalent air layer thickness (sd value) of at least 1500 μm. For example, chloroprene rubber (also known as neoprene) has a water vapor diffusion resistance of 10,000 μm. If the insulation board is made of chloroprene rubber with a thickness of 2 cm, the water vapor diffusion-equivalent air layer thickness is 200 μm (sd value = 10,000 * 0.02 m = 200 μm). Natural rubber also has a water vapor diffusion resistance of 10,000 μm, while butyl rubber, for example, has a water vapor diffusion resistance of 200,000 μm.

[0029] The elastic insulation board can have such an elasticity that unevenness on an interior wall surface of up to 7 mm can be compensated and that a continuous water vapor diffusion-inhibiting insulation layer can be formed on the interior wall surface by means of the elastic insulation board and another elastic insulation board of an adjacent wall element.

[0030] When attaching the wall element, a normal force can act laterally from the first end face of the elastic insulation board onto the second end face of the further elastic insulation board of the already attached wall element, so that the elastic insulation board forms a continuous insulation layer on the inner wall surface with the further elastic insulation board of the already attached adjacent wall element.

[0031] Due to its elasticity, the insulation board is compressed by the normal force on the first end face, i.e. in the area of ​​the end face. The other insulation board of the already attached wall element is also compressed by the normal force on the second end face. This compression and the opposite expansion when the normal force is released ultimately closes and prevents any joints or gaps between two adjacent wall elements. Two adjacent insulation boards therefore form a continuous insulation layer on the inside wall surface. If the insulation board is diffusion-inhibiting, the continuous insulation layer is also water vapor diffusion-inhibiting. If the insulation board is water vapor-tight, the continuous insulation layer is also water vapor diffusion-tight. This means that the local water vapor diffusion-inhibiting orThe water vapor diffusion-tight effect of the continuous insulation layer can be (at least) as effective at the contact points between the insulation panels as it is at the center of a single insulation panel. No gluing or sealing of joints or gaps is necessary.

[0032] Furthermore, the elasticity of the elastic insulation board allows for a coherent bond with the interior wall surface, even if the interior wall surface has unevenness typically up to 7 mm (millimeters). The elastic insulation board can compensate for such unevenness (e.g., by pressing local elevations into the insulation board), thereby preventing air pockets between the interior wall surface and the wall element.

[0033] The elastic insulation board can have an average thermal conductivity of up to 0.04 watts per meter per Kelvin (W / m K). This suppresses heat transfer from the wall to the interior, especially the room air and objects such as furniture.

[0034] The elastic insulation board can, for example, comprise rubber, in particular a rubber elastomer. Both rubber and rubber elastomers can exhibit low thermal conductivity, form water vapor diffusion-inhibiting, particularly water vapor diffusion-tight, layers, and simultaneously offer sufficient elasticity and flexibility. In particular, the elastic insulation board can comprise closed-cell rubber elastomer.

[0035] The wood-based material can be, for example, solid wood or a wood-fiber material, in particular a medium-density wood fiber material, a high-density wood fiber material ("HDF"), a particle board, or plywood. For example, the body of the slat can be made of solid wood or a wood-fiber material, in particular a medium-density wood fiber material, a high-density wood fiber material ("HDF"), a particle board, or plywood. The mechanical properties of wood-based materials are particularly well suited to producing strip-shaped slats that ensure mechanical stability of the elastic insulation layer. By arranging the slats on the front side of the insulation layer, which forms the visible side of the wall element during normal use, the slats are visible and accessible in an interior space.Wood-based materials contribute to a pleasant indoor climate and can be used without any concerns regarding toxic properties, for example.

[0036] For example, at least three, in particular at least ten, strip-shaped slats can be provided, with the strip-shaped slats arranged equidistantly on the front side of the elastic insulation panel. The use of multiple strip-shaped slats can improve the mechanical stability of the wall element. The equidistant arrangement of the slats on the front side of the elastic insulation panel can, on the one hand, improve the homogeneity of the mechanical properties of the elastic insulation panel. On the other hand, equidistant, visible slats in rooms are perceived as aesthetically pleasing, thus achieving an improved decorative effect alongside thermal insulation.

[0037] For example, the normal distance between two adjacent slats can correspond to at least 0.1 times and at most 1.5 times the width of a slat. It is advantageous if the normal distance between two adjacent slats of adjacent wall elements corresponds to the normal distance between two adjacent slats on the same wall element. The wall element can have a first outer slat and a second outer slat. The first outer slat is the slat that has the smallest normal distance to the first end face. The second outer slat is the slat that has the smallest normal distance to the second end face. If two wall elements lie next to one another, the first end face of one wall element lies against the second end face of another already attached wall element. Consequently, the first outer slat of the wall element is adjacent to the second outer slat of the other already attached wall element.In order to determine the normal distance between these two slats corresponding to the normal distance between two slats on a wall element, the normal distance of the first outer slat to the first end face can correspond to the normal distance of the second outer slat to the second end face of the (same) wall element or the normal distance between two adjacent wall elements.

[0038] For example, a first longitudinal section of an outer strip-shaped lamella can extend over the front side of the elastic insulation board and a second longitudinal section of the outer strip-shaped lamella can not extend over the front side of the elastic insulation board. The outer lamella has a first plane of symmetry that is normal to the main extension plane of the insulation board and parallel to the main axis of the outer lamella. The first longitudinal section and the second longitudinal section can, for example, lie on different sides with respect to the first plane of symmetry. Alternatively, the first and the second longitudinal section can have different widths, i.e. extensions in the transverse direction. The outer lamella, for example the first outer lamella, can thus partially protrude beyond the front side of the insulation board.This allows a joint between two adjacent wall elements to be concealed by the second longitudinal section of the outer lamella, as the second longitudinal section of the outer lamella extends over the insulation board of the adjacent wall element. Thus, the joint between two adjacent wall elements is concealed by the outer lamella.

[0039] For example, the slats can have a cross-sectional area of ​​at least 36 mm 2< , in particular exactly 165 mm 2<, with the cross-sectional area being normal to a main axis of the slat. The cross-sectional area of ​​the slats has a significant influence on the mechanical properties of the slats and consequently on the mechanical properties of the wall element. A cross-sectional area of ​​at least 36 mm 2< , in particular exactly 165 cm 2<, results in mechanical properties of the wall element that promote easy installation. In particular, this selection ensures sufficient stability without significantly compromising the flexibility of the wall element. The slats can, for example, have a cross-section of 1.8 mm by 20 mm. The slats can, for example, have a transverse width of 20 mm to 40 mm. The slats can, for example, have a thickness of 1.8 mm to 12 mm.

[0040] A sound absorber, in particular a felt layer, can be attached to the front of the elastic insulation panel, wherein the sound absorber is arranged between the elastic insulation panel and the strip-shaped slats. The sound absorber can be a thin, flexible layer, for example made of felt, wool, hemp wool, or MDF, which at least insulates, in particular absorbs, incoming sound. The sound absorber can, for example, extend over the entire front of the insulation panel. In addition, a part of the insulation layer can not extend over the front of the elastic insulation panel. The part of the insulation layer that is not arranged over the front of the elastic insulation layer can, for example, be used to cover a joint between two adjacent wall elements.

[0041] The present invention will be explained in more detail below with reference to exemplary embodiments shown in the drawings, to which, however, it is not intended to be limited, and with reference to the drawings. Fig. 1 shows a front view of a wall element. Fig. 2 shows a side view of the wall element of Fig. 1 from below (in Fig. 1 shown position).

[0042] Fig. 1 shows a wall element 1 for thermal insulation of an interior wall surface (not shown) with an elastic insulation board 2 (see Fig. 2 ) with twelve strip-shaped slats 3. The strip-shaped slats 3 are spaced apart and parallel to each other on a front side 4 (see Fig. 2 ) of the elastic insulation board 2, so that the elastic insulation board 2 is mechanically stabilized by the strip-shaped slats 3. The arrangement of the strip-shaped slats 3 is equidistant. The normal distance between any two adjacent slats 3 is therefore the same. The slats 3 are identical in this exemplary embodiment. Alternatively, the slats 3 can differ from one another. The insulation board 2 extends laterally in a longitudinal direction 5 on the one hand and in a transverse direction 6 on the other. The transverse direction 6 is normal to the longitudinal direction 5. Both the longitudinal direction 5 and the transverse direction 6 are parallel to the main extension plane of the wall element 1 in the state shown, i.e. without bending. The insulation board 2 extends further in the longitudinal direction 5 than in the transverse direction 6. The strip-shaped slats 3 are aligned parallel to the longitudinal direction 5.Thus, the insulation panel 2 is stabilized, particularly in the longitudinal direction 5, while remaining flexible in the transverse direction 6, allowing it to be easily attached to curved interior wall surfaces. In this exemplary embodiment, the strip-shaped slats 3 extend less in the longitudinal direction 5 than the insulation panel 2. The insulation panel 2 extends 2.5 m in the longitudinal direction 5 and 0.6 m in the transverse direction 6. The thickness of the insulation panel is 1.3 cm. The slats 3 extend 247.5 cm in the longitudinal direction 5 and 2.5 cm in the transverse direction 6.

[0043] The wall element 1 has a first outer slat 7 and a second outer slat 8. The first outer slat 7 is the one of the strip-shaped slats 3 that has the smallest normal distance to a first end face 9. The second outer slat 8 is the one that has the smallest normal distance to a second end face 10. The first end face 9 and the second end face 10 are parallel to the longitudinal direction 5 and extend transversely, in this case perpendicularly, to the front face 4. If two wall elements 1 are attached next to one another, the first end face 9 of one wall element 1 rests against the second end face 10 of another already attached wall element (not shown). Consequently, the first outer slat 7 of the wall element 1 is adjacent to the second outer slat 8 of the other already attached wall element.In order to determine the standard distance corresponding to the standard distance between two adjacent slats 3 on the same wall element 1, the sum of the standard distance of the first outer slat 7 to the first end face 9 and the standard distance of the second outer slat 8 to the second end face 10 of the (same) wall element 1 can correspond to the standard distance between two adjacent slats 3 of a wall element 1. In this case, the first outer slat 7 ends at the first end face 9. In the illustrated embodiment, the standard distance of the second outer slat 8 to the second end face 10 corresponds to the standard distance between two adjacent slats 3. If another identical wall element 1 is placed with the first end face 9 against the second end face 10 of the wall element, a total of twenty-four strip-shaped slats 3 can be seen, each arranged equidistantly.

[0044] Alternatively, a first longitudinal section (not marked) of the first outer strip-shaped lamella 7 can extend over the front side 4 of the elastic insulation panel 2 and a second longitudinal section (not marked) of the first outer strip-shaped lamella 7 can not extend over the front side 4 of the elastic insulation panel 2. In this case too, it can be ensured that the first outer lamella 7 of a wall element 1 has a normal distance to the second outer lamella 8 of another already attached wall element, which corresponds to the normal distance between two adjacent lamellas 3 on a wall element 1. For this purpose, an overhang of the first outer lamella 7 can be taken into account. The lamellas 3 each have two longitudinal side surfaces 18 (for details see Fig. 2 ). If the second longitudinal section does not extend over the front side 4 of the elastic insulation panel 2, the second longitudinal section has a longitudinal side surface 18 which also does not extend over the front side 4 of the insulation panel 2. The overhang is the normal distance of the longitudinal side surface 18, which does not extend over the front side 4 of the insulation panel 2, to the first end face 9. In order to set the normal distance of the first outer lamella 7 to the second outer lamella 8 of another already attached wall element to correspond to the normal distance between two adjacent lamellas 3 on the same wall element 1, the normal distance of the second outer lamella 8 to the second end face 10 can correspond to the sum of the normal distance between two lamellas 3 and the overhang.If another identical wall element 1 is placed with the first end face 9 against the second end face 10 of the wall element, a total of twenty-four strip-shaped slats 3 would also be visible in this case, each arranged equidistantly. A joint between two adjacent wall elements 1 would be covered by the first outer slat 7, as the first outer slat 7 extends over the joint.

[0045] A sound absorber 11, in this case a felt layer, is arranged between the insulation panel 2 and the slats 3 (for details see Fig. 2 ).

[0046] Fig. 2 shows a side view of the wall element 1 from Fig. 1 The sound absorber 11 is arranged between the insulation panel 2 and the slats 3. The sound absorber 11 is attached to the front side 4 of the insulation panel 2. The slats 3 are glued to the sound absorber 11.

[0047] The strip-shaped slats 3 comprise a wood-based material 12, in this case solid wood. The elastic insulation panel 2 comprises a rubber elastomer 13 and is water vapor diffusion-resistant with an sd value of approximately 500 m. The elastic insulation panel 2 has such elasticity that unevenness on an interior wall surface of up to 2 mm can be compensated for and that, by means of the elastic insulation panel 2 and another elastic insulation panel (not shown) of an adjacent wall element (not shown), a continuous water vapor diffusion-tight insulation layer (not shown) can be formed on the interior wall surface. The average thermal conductivity of the elastic insulation panel 2 is less than 0.04 watts per meter per Kelvin (W / m K), in this case approximately 0.03 watts per meter per Kelvin (W / m K).

[0048] An adhesive surface (not shown), in this case formed by double-sided adhesive tape, is provided on a rear side 14 of the insulation panel 2. The rear side 14 is a side of the insulation panel 2 facing away from the front side 4. To protect the adhesive surface from contaminants such as dust, the adhesive surface is covered with a protective film (not shown). The adhesive surface is suitable for permanently fixing the wall element to an interior wall surface. During the intended use of the wall element 1, the rear side 14 of the insulation panel 2 is adhered to an interior wall surface by means of the adhesive surface and thus attached to the interior wall surface.

[0049] The strip-shaped slats 3 have a cross-sectional area 19 of more than 36 mm 2 , in this case approximately 165 mm 2 , with the cross-sectional area 19 being normal to a main axis of the slat 3. The width of the slats 3 in the transverse direction 6 is 2.5 cm, and the height, ie the thickness, of the slats 3 is 0.66 cm.

[0050] The slats 3 have a body 15 made of wood-based material, in this case solid wood. The body 15 has a rear side 16, wherein the rear side 16 of the slat 3 is glued to the sound absorber 11. The body 15 of the slat 3 further has a front side 17 opposite the rear side 16, as well as two longitudinal side surfaces 18. As an alternative to the illustrated embodiment, a decorative layer can be arranged on the body 15, wherein the decorative layer can extend at least over the front side 17 of the slat. In addition, the decorative layer can extend over at least one longitudinal side surface 18 of the body 15 of the slat 3. For example, the decorative layer can comprise a real wood veneer.

[0051] For thermal insulation of an interior wall surface with wall element 1 from the Figuren 1 and 2the following steps are carried out at least once and, if necessary, repeated until the interior wall surface is completely covered with wall elements 1. Providing a wall element 1; removing the protective film from the adhesive surface; attaching the wall element 1 to the interior wall surface by gluing it onto the adhesive surface, wherein the first end face 9 of the elastic insulation panel 2 is flush with the second end face 10 of another elastic insulation panel of an already attached wall element, wherein the first end face 9 and the second end face 10 are perpendicular to the front face 4 of the elastic insulation panel 2. When attaching the wall element 1, a normal force acts laterally from the first end face 9 of the elastic insulation panel 2 onto the second end face 10 of the other elastic insulation panel of the already attached wall element, such that the elastic insulation panel 1 forms a continuous insulation layer on the interior wall surface with the other elastic insulation panel of the already attached adjacent wall element.

[0052] Depending on its total area, an interior wall surface can be fitted with Wall Elements 1 within a few hours. Time-consuming and complicated work steps such as adhesive filler, joint filling, gluing, plastering, and / or painting are no longer necessary thanks to the use of Wall Elements 1. The thermal insulation achieved with Wall Elements 1 can lead to energy savings of approximately 20% to 50%.

Claims

1. A wall element (1) for thermal insulation of an interior wall surface, comprising an elastic insulating panel (2) and at least two slat-shaped lamellas (3), wherein the at least two slat-shaped lamellas (3) being spaced apart from one another and arranged parallel to one another on a front side (4) of the elastic insulating panel (2), so that the elastic insulating panel (2) is mechanically stabilised by the slat-shaped lamellas (3), characterised in that the slat-shaped lamellas (3) comprise engineered wood (12), wherein an adhesive surface is provided on a rear side (14) of the insulating panel (2), wherein the adhesive surface is covered with a protective film, wherein the rear side (14) is a side of the insulating panel (2) facing away from the front side (4), wherein the adhesive surface is suitable for permanently fixing the wall element (1) to an interior wall surface.

2. The wall element (1) according to claim 1, characterised in that the insulating panel (2) extends laterally in a longitudinal direction and laterally in a transverse direction, wherein the insulating panel (2) extends further in the longitudinal direction (5) than in the transverse direction (6), wherein the slat-shaped lamellas (3) are aligned parallel to the longitudinal direction (5).

3. The wall element (1) according to any one of claims 1 or 2, characterised in that the elastic insulating panel (2) is water vapour diffusion-inhibiting, in particular water vapour diffusion-tight.

4. The wall element (1) according to claim 3, characterised in that the elastic insulating panel (2) has such an elasticity that unevennesses on an interior wall surface of up to 7 mm can be compensated for, and that a continuous water vapour diffusion-inhibiting insulating layer (2) can be formed on the interior wall surface by means of the elastic insulating panel and a further elastic insulating panel of an adjacent wall element.

5. The wall element (1) according to any one of the preceding claims, characterised in that said elastic insulating panel (2) has an average thermal conductivity of at most 0.04 watts per metre per kelvin (W / m K).

6. The wall element (1) according to any one of the preceding claims, characterised in that the elastic insulating panel (2) comprises rubber, in particular a rubber elastomer (13).

7. The wall element (1) according to any one of the preceding claims, characterised in that the wood-based material (12) is solid wood or engineered wood, in particular a medium-density wood fibre material, high-density wood fibre material ("HDF"), a wood chip material or plywood.

8. The wall element (1) according to any one of the preceding claims, characterised in that at least three, in particular at least ten, slat-shaped lamellas (3) are provided, wherein the slat-shaped lamellas (3) are arranged equidistantly on the front side of the elastic insulating panel.

9. The wall element (1) according to any one of the preceding claims, characterised in that a first longitudinal section of an outer slat-shaped lamella extends across the front side (4) of the elastic insulating panel (2), and a second longitudinal section of the outer slat-shaped lamella does not extend across the front side of the elastic insulating panel (2).

10. The wall element (1) according to any one of the preceding claims, characterised in that the slat-shaped lamellas (3) have a cross-sectional area (19) of at least 36 mm2, in particular exactly 165 mm2, wherein the cross-sectional area (19) is normal to a main axis of the lamella.

11. The wall element (1) according to any one of the preceding claims, characterised in that the adhesive surface is formed by double-sided adhesive tape.

12. The wall element (1) according to any one of the preceding claims, characterised in that a sound absorber (11), in particular a felt layer, is attached to the front side (4) of the elastic insulating panel (2), wherein the sound absorber (11) is arranged between the elastic insulating panel (2) and the slat-shaped lamellas (3).

13. A method for the thermal insulation of an interior wall surface, wherein the method comprises at least one repetition of the following steps: - providing a wall element (1) according to any of claims 1 to 12 with an elastic insulating panel wherein the wall element (1) has at least two slat-shaped lamellas (3), wherein the at least two slat-shaped lamellas (3) are spaced apart from one another and are arranged parallel to one another on a front side (4) of the elastic insulating panel (2) in order to mechanically stabilise the elastic insulating panel (2) during the attachment, wherein an adhesive surface is provided on the rear side (14) of the elastic insulating plate (2), wherein the rear side (14) is a side of the elastic insulating plate (2) facing away from the front side (4), wherein the adhesive surface is covered with a protective film; - removing the protective film from the adhesive surface; - attaching the wall element (1) to an interior wall surface, wherein a first end face (9) of the elastic insulating panel (2) flushes with a second end face (10) of a further elastic insulating panel of an already fastened wall element, wherein attaching the wall element (1) comprises adhering the wall element (1) by means of an adhesive surface.

14. The method according to claim 13, characterised in that, when attaching the wall element 1, a normal force from the first end face (9) of the elastic insulating panel (2) acts laterally on the second end face (10) of the further elastic insulating panel of the already fastened wall element, so that the elastic insulating panel (2) forms a continuous insulating layer on the interior wall surface with the further elastic insulating panel of the already fastened adjacent wall element (1).