KIT FOR CREATING A VEGETABLE WALL ELEMENT

Description

[0001] The invention relates to a kit for constructing a plantable wall element, comprising a housing part having a front installation opening and an inner cavity defined by a rear wall, a left side wall, a right side wall, and a housing base of the housing part, wherein the rear wall, the side walls, and the housing base are designed to be watertight, and the rear wall is connected to the side walls and the housing base, and the latter to the side walls, in a watertight manner, with at least one wall component having at least one planting opening, which can be inserted into the installation opening of the housing part and connected to it in such a way that the wall component extends in the vertical direction, and at least one cavity is formed between the surface defined by the planting opening and the rear wall of the housing part, which cavity can be filled with a planting substrate in such a way,that a plant rooted in the planting substrate can grow through the planting opening onto the front side of the wall component facing away from the cavity.

[0002] Such a kit is known from WO 2005 / 005747 A2. It comprises a housing part with two parallel side walls and a base plate arranged in a horizontal plane, which connects the side walls in an approximately U-shaped manner. The housing part also has a rear wall arranged at right angles to the planes defined by the side walls and at right angles to the plane of the base plate. The side walls and the base plate define a cavity that is open at the front and at the top.

[0003] The side walls have vertical grooves on their facing inner sides, between which a wall component matching the grooves can be inserted from above into the cavity so that it rests against the base plate. The wall component extends vertically and is penetrated transversely to its plane of extension by a plurality of planting openings arranged in a matrix in several rows and several columns. A cavity is formed between the wall component inserted in the grooves and the rear wall, which can be filled with soil or another suitable planting substrate. This can be poured into the inner cavity from above. Plants rooted in the planting substrate can grow through the planting openings onto the front side of the wall component facing away from the cavity.

[0004] At its upper edge, on the back side facing away from the interior cavity, the rear wall has a strip-like projection. The underside of the projection has a groove that can be hooked into a sheet metal support profile. The support profile is designed as a U-profile extending horizontally with both U-legs pointing upwards. One of the legs is screwed to a building wall, and the other leg, with its free end facing away from the U-shaped crosspiece, engages from below into the groove of the strip-like projection. To prevent it from being lifted out, the rear wall of the housing section can be drilled through with a self-drilling screw that is screwed to the support strip. Mineral wool insulation panels are applied to the building wall above and below the U-shaped crosspiece of the U-profile. With the exception of the point where the U-shaped crosspiece of the U-profile is located, they cover the rear wall seamlessly, even behind the housing section.A disadvantage, however, is that the U-profile creates a thermal bridge that penetrates the insulation layer formed by the insulation panels. The green wall element is designed to be mounted externally on a building wall's thermal insulation composite layer. However, this has the disadvantage that the building façade is fragmented by the green wall element, which can have an adverse impact on the building's design.

[0005] The previously known kit for creating a plantable wall element also includes an irrigation system for the plant substrate and the plants rooted therein. The irrigation system has a horizontal polyethylene hose with water outlets in the interior cavity above the substrate cavity.

[0006] DE 10 2020 121 022 A1 further discloses a plantable wall element having a vertically oriented slatted grid that defines a cavity in the wall element that can be filled with plant substrate. The slatted grid has a first number of first bars and a second number of second bars. The first bars are oriented vertically, and the second bars are oriented horizontally. The first and second bars define planting openings through which plants rooted in the planting substrate can grow through the planting openings onto the front side of the slatted grid facing away from the cavity. The slatted grid can be arranged on a wall at a distance from the wall. A moisture-impermeable and heat-insulating layer can be arranged between the cavity and the wall. This wall element is therefore also mounted externally onto a thermal insulation composite layer of a building wall.

[0007] The cavity of the previously known greenable wall element can also be formed between two spaced-apart louvre grids. These are arranged between two precast concrete, non-thermally insulated stud elements, which have grooves on their facing, vertically oriented narrow sides in which the louvre grids are held.

[0008] From WO 2010 / 025837 A1, a kit for creating a greenable wall element according to the preamble of claim 1 is also known.

[0009] The object of the invention is to create a kit for creating a green wall element of the type mentioned above, which – when the green wall element is mounted on the exterior wall of a building with a thermal insulation composite layer – enables a visually appealing building design. Furthermore, the kit should be easy to install on the building during the installation of the thermal insulation composite layer, avoiding thermal bridges.

[0010] The invention is defined by a kit for creating a greenable wall element according to claim 1. Preferred embodiments are defined in the dependent claims.

[0011] According to the invention, this object is achieved in a kit for constructing a greenable wall element of the type mentioned at the outset in that at least the rear wall of the housing part is designed to be thermally insulating, that the housing part has an upper housing wall connected to the rear wall and the side walls, which upper housing wall delimits the inner cavity of the housing part, that for integrating the greenable wall element into a thermal insulation composite layer arranged on an outer wall of a building, plaster connection profiles are provided on the edge of the housing part bordering the installation opening, which profiles have a plaster removal edge and are connected to at least one plastering mesh, that the plastering mesh(es) protrudes on all sides beyond the outer contour of the housing part for plastering into a plaster layer to be applied to an insulating layer of the thermal insulation composite layer adjacent to the wall element,that fastening points are provided on the rear wall of the housing part, to which fastening elements penetrating the rear wall can be attached for anchoring in the outer wall of the building, that the kit has covers for the fastening points which can be connected in a watertight manner to the wall area of ​​the rear wall bordering the fastening point, and that a drip strip is provided on the housing part extending along the lower edge of the installation opening, the edge area of ​​which facing away from the rear wall protrudes from the plane spanned by the plaster stripping edges of the plaster connection profiles.

[0012] Thus, when installing a thermal insulation composite layer on a building, the casing part can be easily integrated into the thermal insulation composite layer such that the side walls and the upper casing wall of the casing part, with their outer or front end faces facing away from the building, are aligned with the surfaces of the insulation panels of the thermal insulation composite layer adjacent to the casing part, facing away from the building. This can be achieved, for example, by first positioning insulation panels on the building wall below the point where the casing part is to be mounted on the building wall in the usual way and then attaching them to the building wall using ETICS dowels, which penetrate the insulation panels and are anchored in the building wall.

[0013] The housing section is then placed on the previously installed insulation panels and secured to the building's exterior wall at the attachment points of its rear wall using fasteners that penetrate the rear wall and are anchored in the building's exterior wall. The covers are then attached to the attachment points to create a watertight seal around the rear wall.

[0014] Preferably, the rear wall of the housing part is additionally attached to the exterior wall of the building with adhesive. The adhesive can be applied to the rear side of the housing part's rear wall facing away from the interior cavity and / or to the exterior wall of the building before positioning the housing part on the exterior wall.

[0015] Once the casing section has been secured to the exterior wall in this way, the remaining thermal insulation composite elements adjacent to the casing section can be mounted on the building wall using ETICS dowels. The plastering mesh provided on the plaster connection profiles of the casing section then extend over the thermal insulation composite elements adjacent to the casing section. In a further step, a reinforcing mesh is applied to the insulation boards adjacent to the casing section and then a reinforcing plaster is applied to the surfaces of the insulation boards adjacent to the casing section facing away from the building wall and to the outer surface areas of the casing section bordering the installation opening in order to fill the reinforcing plaster into the plastering mesh and the reinforcing mesh. If necessary, the reinforcing plaster can be pulled over the plaster strips of the casing section. This creates aThe outer surface of the thermal insulation composite layer above the housing base, facing away from the masonry, creates a completely flat surface all the way to the installation opening, enabling a visually appealing building design. Since the rear wall of the housing section is thermally insulated, cold bridges on the greenable wall element are avoided in the area of ​​the interior cavity.

[0016] After the plaster mesh has been plastered into the reinforcing plaster, a finishing coat can be applied to the reinforcing plaster if required. The wall component is then inserted into the installation opening of the housing component, and the cavity between the rear wall of the housing component and the wall component is filled with the planting substrate. At least one plant can then be planted into the planting substrate through the planting opening(s). This plant will grow through the at least one planting opening onto the side of the wall component facing away from the cavity.

[0017] The drip strip located along the lower edge of the installation opening on the housing prevents rainwater or irrigation water that enters the installation opening and is not absorbed by the plant substrate and / or plants from running down the building façade below the installation opening, causing stains and / or streaks on the building façade. The edge of the drip strip facing away from the rear wall preferably has a downward-facing component.

[0018] In a preferred embodiment of the invention, the fastening points each have a countersink let into the front surface of the rear wall facing the inner cavity of the housing part. A tradesperson who mounts the housing part on the outer wall of a building can then first position the housing part with its rear wall on the outer wall and then drill through the bottom of the countersink using a hammer drill, for example, and then, as the drilling progresses, create a hole for anchoring a fastening element, such as an expansion anchor, which passes through the rear wall and has a head part and a shaft, into the outer wall. The countersinks are arranged on the rear wall in such a way that a statically secure anchoring of the housing part to the outer wall of the building is ensured when the fastening elements are inserted through the countersinks in the rear wall into the outer wall and anchored thereto.The head part of the fastening element is preferably completely recessed into the countersink so that it does not protrude beyond the edge area of ​​the rear wall surrounding the countersink.

[0019] In an expedient embodiment of the invention, it is provided that the countersink has a base and a peripheral wall which delimit a receiving space for a head part of the fastening element, that a blind hole is let into the base of the countersink through which the rear wall can be drilled and / or pierced orthogonally to the plane spanned thereby, or that a through-hole is arranged in the base of the countersink, and that the blind hole or the through-hole is spaced from the peripheral wall of the countersink and preferably arranged centrally thereto. When drilling through the rear wall, the blind hole or the through-hole can serve as a centering point for the drill.

[0020] Preferably, the dimensions of the countersink are selected such that a dowel head of an ETICS dowel can be fully countersunk into the blind hole, preferably such that the dowel head is flush with the front surface of the wall area of ​​the rear wall bordering the countersink, facing the inner cavity of the housing part. By using ETICS dowels to attach the housing part to the exterior wall, cold bridges at the attachment points of the rear wall are avoided. Furthermore, the same ETICS dowels can be used to attach the housing part as for attaching the insulation panels adjacent to the housing part. This further simplifies the integration of the greenable wall element into the thermal insulation composite layer of the building.

[0021] In an advantageous embodiment of the invention, the covers for the fastening points are designed as a patch comprising a waterproof film coated on one side with an adhesive layer adhering to the film for bonding to the rear wall of the housing part. The adhesive layer is covered by a removable protective film. The covers for the fastening points are preferably designed as butyl patches.

[0022] In a further development of the invention, the side walls, the housing base, and the upper housing wall comprise at least one layer of a thermally insulating material, with the rear wall preferably having a lower thermal conductivity than this material. Since the wall thickness of the rear wall is reduced compared to the wall thickness of the insulation panels of the ETICS layer adjacent to the housing part, a high-performance insulating material is preferably used for the rear wall, in particular an aerogel, a rigid polyurethane foam, or a rigid polyester foam. Combinations of these materials are also possible. If the rear wall has through holes for fastening elements, the rear wall can also be designed as a vacuum panel. Furthermore, the rear wall can comprise at least one layer of rock wool and / or a renewable insulating material, in particular cork and / or softwood fiber.

[0023] In a preferred embodiment of the invention, the rear wall and / or the housing base and / or the upper housing wall and / or the side walls have at least one layer of an insulating material, which is coated with a waterproof layer, in particular a PVC sealing film or a PVC plate, on its inner surface facing the inner cavity of the housing part and / or on its outer surface facing away from the inner cavity. This improves the waterproofness of the rear wall, the side wall, the upper housing wall or the housing base and makes it more difficult for moisture to diffuse into the insulating material or into the pores of the insulating material. The use of a PVC plate also improves the mechanical strength and flexural rigidity of the layer arrangement formed from the insulating material and the at least one PVC plate, which is particularly advantageous when an aerogel is used as the insulating material.It may even be possible for the rear wall, the housing base, the upper housing wall and / or the side walls to be designed as sandwich panels with at least four layers, each of which has a layer of insulating material and a layer of PVC transversely to their plane of extension.

[0024] In a further development of the invention, it is provided that the housing part has a front housing wall which adjoins the installation opening, that the front housing wall has a left wall region connected to the left side wall and projecting towards the left edge of the installation opening, behind which the inner cavity of the housing part extends, that the front housing wall has a right wall region connected to the right side wall and projecting towards the right edge of the installation opening, behind which the inner cavity of the housing part extends, and that the wall component, when inserted into the installation opening of the housing part and connected to it, extends in the interior cavity beyond the left and right wall areas of the front wall. For an observer of the green wall element, the edge of the wall component is then not visible in the installation opening. This further improves the design of the green wall element and, when viewed from the front, enables a seamless connection of the wall component to the plaster layer adjacent to the installation opening.

[0025] In an advantageous embodiment of the invention, at least two first bars are arranged in the inner cavity of the housing part, which extend in the vertical direction and are fixed to the housing part such that the wall component has a plurality of second bars which can be inserted into the inner cavity of the housing part transversely to the first bars and can be connected therein with the first bars to form a slatted grille such that the planting openings are each delimited by adjacent horizontal and vertical bars. The first and / or second bars are preferably made of aluminum or plastic. This enables the greenable wall element to be lightweight. The static forces acting on the rear wall at the fastening points are correspondingly reduced if the greenable wall element is installed in a thermal insulation composite layer of a building.

[0026] In an expedient embodiment of the invention, it is provided that the first bars each have at least one fastening flange fixed to the rear wall, that the first bars have notches that are open towards the installation opening, and that the second bars can be inserted through the installation opening of the housing part into the notches of the first bars. As a result, the second bars can be easily fastened through the installation opening to the first bars serving as support bars and removed from them again if necessary. The installation of the second bars preferably begins at the lowest notches of the first bars, in order to then mount further second bars in a corresponding manner at the notches located above.After installing every second bar or a group of second bars, the space between the second bars and the rear wall can be filled from above with planting substrate. This can be poured, for example, with a shovel through the installation opening into the space behind the second bars.

[0027] It is advantageous if the notches have a downward-facing component, extending from their open end facing the installation opening to their closed end facing the rear wall. The second slats are then tilted around a horizontal axis in the plane in which the slatted grid extends, for example, at an angle of approximately 45°. This allows the plant substrate, once filled into the cavity, to be better retained by the slatted grid, while still allowing plants rooted in the plant substrate to grow through the planting opening(s) onto the side of the wall component facing away from the cavity.

[0028] In another advantageous embodiment, the wall component has at least one plate part through which at least one planting opening passes transversely to the plane spanned by the plate part, wherein the plate part can be inserted into the installation opening of the housing part and connected to the housing part in such a way that the plate part extends in the vertical direction and at least one cavity is formed between the planting opening and the rear wall of the housing part, wherein the plate part has a collar-shaped or sleeve-shaped projection on at least one planting opening which, when the plate part is inserted into the installation opening, projects into the cavity towards the rear wall relative to an adjacent rear surface area of ​​the plate part and there delimits the planting opening at the top.When the cavity located between the panel and the rear wall above the planting opening is filled with planting substrate, the collar- or sleeve-shaped projection supports the planting substrate falling onto it, preventing it from falling or trickling out of the cavity below the filling point through the planting opening defined by the collar-shaped projection. This allows for easy filling of the cavity with planting substrate. The panel preferably has an insulating layer.

[0029] In a preferred embodiment of the invention, the end edge of the collar-shaped projection facing the rear wall is designed such that its upper end projects further toward the rear wall than its lower end. The end edge of the collar-shaped projection facing the rear wall is preferably spaced from the rear wall to facilitate filling the interior cavity with the substrate and to allow the substrate—when poured into the cavity from above—to better penetrate into the areas of the cavity located below the collar-shaped projection.

[0030] It is advantageous if at least one partial region of the collar-shaped projection that delimits the planting opening at the top has at least one water passage opening. This allows irrigation or rainwater that is arranged in the planting substrate above this partial region to reach plants that have their roots in the planting substrate below the collar-shaped projection through the water passage opening(s). The at least one water passage opening can have one or more slits and / or a perforation. The water passage openings are dimensioned such that they retain the substrate but are permeable to water. The slits preferably have a maximum width of 5 mm. The slits preferably run parallel to the rear wall or to the plane spanned by the wall component.

[0031] In a preferred embodiment of the invention, the kit comprises an irrigation system with at least one water line, which has at least one water outlet opening, preferably arranged above the at least one planting opening, for irrigating the plant substrate in the inner cavity. If the greenable wall element is arranged in a thermal insulation composite layer of a building, this water line can be connected to a supply line that runs frost-protected in or behind the thermal insulation composite layer.

[0032] Exemplary embodiments of the invention are explained in more detail below with reference to the drawing. It shows: Fig. 1 a three-dimensional representation of a housing part of a kit for creating a greenable wall element of a kit, wherein the housing part has a front installation opening and an inner cavity located behind it, Fig. 2 a representation similar Fig. 1, but in the inner cavity a slatted grate is arranged, which extends in the vertical direction, Fig. 3 a vertical section through the Fig. 2 shown arrangement along the Fig. 8 level marked IV, Fig. 4 an enlarged section of Fig. 3 , which shows an area around the upper edge of the installation opening, Fig. 5 an enlarged section of Fig. 3 , the bottom area of ​​the housing part and the lower end of the louvre grate, Fig. 6 a horizontal section through the Fig. 2 shown arrangement along the Fig. 8 level marked IV, Fig. 7 a partial cross-section through a green wall element mounted on the outer wall of a building, Fig. 8 a front view of the Fig. 2 shown arrangement, with fastening points in the rear wall of the housing part shown in dashed lines, Fig. 9 a representation similar Fig. 2, but instead of the horizontal slats of the slatted grid, there is a wall component in the inner cavity, which has several plate parts, each of which is penetrated by several planting openings, Fig. 10 a vertical section through the Fig. 9 shown arrangement along the Fig. 12 plane marked X, Fig. 11 a horizontal section through the Fig. 9 shown arrangement along the Fig. 12 plane marked XI, Fig. 12 a front view of the Fig. 9shown arrangement, wherein fastening points in the rear wall and hidden edges of components bordering the planting openings are shown in dashed lines, Fig. 13 a vertical section through a partial area of ​​a plate part of the wall component, wherein the cutting plane runs orthogonal to the plane spanned by the plate part through a planting opening, and Fig. 14 a plan view of a substantially sleeve-shaped component which is inserted into a hole in the plate part and borders the planting opening.

[0033] A kit for creating a green wall element has a box-shaped housing part 1 with a front installation opening 2 and an inner cavity 3 behind it ( Fig. 1). The inner cavity 3 is defined by a rear wall 4, a left side wall 5, a right side wall 6, a housing base 7, and an upper housing wall 8 of the housing part 1. The side walls 5, 6 are arranged parallel to one another and spaced apart by the inner cavity 3. When the green wall element is mounted on a building, the side walls 5, 6 are arranged in vertical planes.

[0034] The housing base 7 and the upper housing wall 8 are also spaced apart from each other by the inner cavity 3. The planes in which the housing base 7 and the upper housing wall 8 extend are arranged orthogonally to the two planes spanned by the side walls 5, 6 and transversely to the plane spanned by the rear wall 4.

[0035] The back panel 4, the side panels 5, 6, the housing base 7, and the upper housing panel 8 are each designed to be watertight. The back panel 4 is connected to the side panels 5, 6, the housing base 8, and the upper housing panel 8 in a watertight manner. Furthermore, the side panels 5, 6 are connected to the housing base 7 and the upper housing panel 8 in a watertight manner.

[0036] The housing part 1 also has a front housing wall 9, which borders the installation opening 2. The front housing wall 9 has an upper wall region 9A connected to the upper housing wall 8 and protruding relative to the latter in the direction of the upper edge of the installation opening 2, a right wall region 9B connected to the right side wall 6 and protruding relative to the latter in the direction of the right edge of the installation opening 2, and a left wall region 9C connected to the left side wall 5 and protruding relative to the latter in the direction of the left edge of the installation opening 2. The front housing wall 9 is watertightly connected to the upper housing wall 8, the right side wall 6, and the left side wall 5.

[0037] The side walls 5, 6, the housing base 7, and the upper housing wall 8 each have at least one layer of insulating material. The insulating material of the rear wall 4 has a lower thermal conductivity than the insulating material of the side walls 5, 6, the housing base 7, and the upper housing wall 8. The insulating material of the side walls 5, 6, the housing base 7, and the upper housing wall 8 can comprise at least one layer of extruded polystyrene (XPS) and / or rock wool. The insulating layer is coated with a waterproof PVC sealing film, at least on its inner surface facing the inner cavity 3 of the housing part 1.

[0038] As in Fig. 2 and 3As can be seen, the kit for creating the plantable wall element also has a wall component 10 which, in the use position, is arranged in the inner cavity 3 of the housing part 1 in such a way that the plane in which the wall component 10 extends is parallel to the plane spanned by the rear wall 4 and with its longitudinal edges parallel to the planes spanned by the side walls. The wall component 10 can be inserted into the installation opening 2 of the housing part 1, detachably connected to the housing part 1 and removed therefrom. When the wall component 10 is connected to the housing part 1, at least one cavity 11 is formed between the wall component 10 and the rear wall 4, which cavity can be filled with a planting substrate. The planting substrate can be potting soil, for example.

[0039] The wall component 10 has a plurality of planting openings 12 through which plants rooted in the planting substrate located in the cavity 11 can grow onto the front side of the wall component facing away from the cavity 11.

[0040] To integrate the greenable wall element into a thermal insulation composite layer arranged on an external wall of a building, plaster connection profiles 13A, 13B, 13C, 13D are provided on the edge of the housing part surrounding the installation opening, each of which has a plaster removal edge 14 and is connected to a plaster mesh 15A, 15B, 15C, 15D assigned to it ( Fig. 8). An upper plaster connection profile 13A is arranged on the front edge of the upper housing wall 8 facing away from the rear wall 4, a right plaster connection profile 13B is arranged on the front edge of the right side wall 6 facing away from the rear wall 4, a left plaster connection profile 13C is arranged on the front edge of the left side wall 5 facing away from the rear wall 4, and a lower plaster connection profile 13D is arranged on the front edge of the housing base 7 facing away from the rear wall 4. The upper plaster connection profile 13A and the lower plaster connection profile 13D each extend continuously from the left plaster connection profile 13C to the right plaster connection profile 13B.

[0041] As in Fig. 4As can be seen, the upper plaster connection profile 13A has two parallel leg parts 16, 17 which are connected to one another in a U-shape by a U-shaped crosspiece 18. The upper wall region 9A is arranged between the leg parts 16, 17 in such a way that the inner leg part 16 comes into contact with the inner surface of the upper wall region 9A facing the inner cavity 3 and the outer leg part 17 comes into contact with the outer surface of the upper wall region 9A facing away from the inner cavity 3. As a result, the upper plaster connection profile 13A is positively connected to the edge of the upper wall region 9A adjacent to the installation opening 2.

[0042] In a corresponding manner, the right plaster connection profile 13B is positively connected to the edge of the right wall area 9B adjacent to the installation opening 2, and the left plaster connection profile 13B is positively connected to the edge of the left wall area 9C adjacent to the installation opening 2. The right plaster connection profile 13B and the left plaster connection profile 13C each have two parallel leg parts 16, 17, which are connected to each other in a U-shape by a U-shaped crosspiece 18. If necessary, the plaster connection profiles 13A, 13B, 13C can be glued to the edge of the corresponding wall area 9B adjacent to the installation opening 2.

[0043] On the inside of the U-shaped crossbar 18 of the plaster connection profiles 13A, 13B, 13C facing away from the leg parts 16, 17, an edge strip 19 is formed on the U-shaped crossbar 18, which borders the installation opening. Fig. 4It can be seen that the edge strip 19 is designed as a hollow chamber profile with a substantially rectangular cross-section. Fig. 4 It can be seen that the plaster removal edge 14 is bead-shaped and projects away from the inner cavity 3 relative to the front surface of the outer leg part 17 facing away from the front wall 9 of the housing part 1.

[0044] The plaster mesh 15A, 15B, 15C, 15D each covers the front surface of the respective outer leg part 17 facing away from the front wall 9 of the housing part 1 and is welded and / or otherwise firmly connected thereto. The plaster mesh 15A, 15B, 15C, 15D are arranged in a plane that runs approximately parallel to the plane spanned by the front wall 9 or the installation opening 2 ( Fig. 4 and 5). The edge area of ​​the plaster mesh 15A, 15B, 15C, 15D remote from the installation opening 2 protrudes beyond the outer contour of the housing part 1. If the housing part 1 is installed in a thermal insulation composite layer of a building, these edge areas cover insulation panels of the thermal insulation composite layer adjacent to the housing part 1, so that the insulation panels and the front housing wall 9 can be plastered continuously and without interruption up to the installation opening 2 or up to the plaster connection profiles 13A, 13B, 13C, 13D.

[0045] As in Fig. 5As can be seen, the lower plaster connection profile 13D is designed as a plug-in profile having a plug-in leg 20 that is inserted into a groove recessed in the front end face of the housing base 7 and fixed there with the aid of adhesive. In addition, the lower plaster connection profile 13D has a T-shaped crosspiece 21 that is connected to the plug-in leg 20 in a T-shape. An approximately square hollow chamber profile is formed on the edge region of the T-shaped crosspiece 21 adjacent to the installation opening 2, which protrudes from the front end face of the housing base 7 and forms the plaster removal edge 14D. The lower edge region of the T-shaped crosspiece 21 is welded and / or firmly connected in some other way to a lower plaster mesh 15D.

[0046] In Fig. 5It can also be seen that a drip strip 22 extending along the lower edge of the installation opening 2 is provided on the lower plaster connection profile 13D, the edge region of which, facing away from the rear wall 4, has a downward-facing component and protrudes beyond the plane defined by the plaster stripping edges 14, 14. The projection of the edge region beyond this plane is preferably approximately 10 mm and is dimensioned such that dripping water running downwards from the installation opening via the drip strip 22 does not come into contact with the exterior facade of the building.

[0047] For fastening the housing part 1 to a building's exterior wall (e.g., masonry, concrete wall, etc.), fastening points 4 are provided on the rear wall of the housing part 1, to which fastening elements penetrating the rear wall 4 can be attached for anchoring in the building's exterior wall. The fastening points 23 are arranged on the rear wall 4 in such a way that a structurally secure anchoring of the housing part 1 to the exterior wall is ensured if ETICS dowels are used as fastening elements, which are inserted through the rear wall into the exterior wall at the fastening points 23 and anchored therein.

[0048] The kit for creating the plantable wall element includes covers 24 for the fastening points 23, which can be connected in a watertight manner to the wall area of ​​the rear wall 4 surrounding the fastening point 23. The covers 24 are designed as butyl patches comprising a waterproof film coated on one side with an adhesive layer that adheres to the film for connection to the rear wall 4 of the housing part. The adhesive layer is covered with a protective film that can be removed from the film during assembly of the kit to adhere the butyl patch to the rear wall 4.

[0049] As in Fig. 3 and 6As can be seen, the fastening points 23 each have a countersink 25 that is recessed into the front surface of the rear wall facing the inner cavity 3 of the housing part 1. The dimensions of the countersink 25 are selected such that a dowel head of an ETICS dowel 26 can be completely countersunk into the countersink 25.

[0050] A blind hole is recessed into the bottom of the countersink 25, through which the rear wall 4 can be drilled and / or pierced using a hammer drill perpendicular to the plane spanned by it. The blind hole is located centrally to the countersink 25, and its diameter approximately corresponds to the diameter of the shaft of the ETICS anchor 26.

[0051] In the Fig. 2 to 8In the embodiment shown, a plurality of first bars 27 are arranged in the inner cavity 3 of the housing part 1, which bars extend in the vertical direction and are offset from one another transversely to their longitudinal extent. The wall component 10 has a plurality of second bars 28, which can be inserted transversely to the first bars 27 into the inner cavity 3 of the housing part 1 and can be connected therein with the first bars 27 to form a slatted grille in such a way that the planting openings 12 are each delimited by adjacent vertical bars 27 and horizontal bars 28.

[0052] The first rods 27 are attached to the rear wall 4 by means of adhesive at their mounting flanges. If necessary, they can also be positively connected to the rear wall 4, the housing base 7, and / or the upper housing wall 8.

[0053] When the second rods 28 are inserted into the notches of the first rods 27, they engage with their one axial end behind the left wall area 9C of the front housing wall 9 and with their other axial end behind the right wall area 9B of the front housing wall 9. The horizontal dimension of the second rods 28 is therefore greater than the clear width which the installation opening 2 has in the horizontal direction or parallel to the housing base 7.

[0054] The first bars 27 are each designed as angle profiles with a fastening flange for fixing to the rear wall 4 and with a connecting leg arranged transversely to the fastening flange. The latter has a plurality of notches offset parallel to one another in the vertical direction, each of which is open towards the installation opening 2. From their open end to their opposite closed end, the notches each have a downward-facing component. As a result, the second bars 28, when connected to the first bars to form the louvre grille - starting from the installation opening 2 towards the rear wall 4 - have a downward-facing component ( Fig. 3 and 5 This prevents the plant substrate from trickling out of the planting openings 12 when it is filled from above into the cavity 11 located between the wall component 10 and the rear wall 4.

[0055] During assembly of the wall component 10, the lowest second bars 28 are first inserted into the corresponding notches of the first bars 27, and then the cavity formed between these second bars and the rear wall 4 is filled with substrate. Subsequently, further second bars 28 are mounted on top of the first bars 27, in order to subsequently also fill the cavity 11 located between the further second bars 28 and the rear wall 4 with substrate. If necessary, the above-mentioned steps are repeated until all second bars 28 are installed in the interior cavity and backfilled with planting substrate. Plants can then be planted into the planting substrate through the planting openings 12.

[0056] In another, in Fig. 9 to 14In the illustrated embodiment of the invention, the wall component 10' has, instead of the second bars 28, a plurality of plate parts 10A, 10B, 10C, each of which is penetrated by a plurality of planting openings 12 transversely to the plane spanned by the plate part 10A, 10B, 10C. The plate parts 10A, 10B, 10C can each be inserted into the installation opening 2 of the housing part 1 and connected to the housing part 1 in such a way that the plate parts 10A, 10B, 10C extend in the vertical direction and at least one cavity 11 is formed between the planting openings 12 and the rear wall 4 of the housing part 1, which cavity can be filled with planting substrate. When the plate parts 10A, 10B, 10C are installed in the inner cavity 3 of the housing part 1, they engage with their one axial end behind the left wall area 9C of the front housing wall 9 and with their other axial end behind the right wall area 9B of the front housing wall 9.The horizontal dimension of the plate parts 10A, 10B, 10C is therefore larger than the clear width which the installation opening 2 has in the horizontal direction or parallel to the housing base 7.

[0057] The structure of the housing part corresponds to the one in the Fig. 9 to 12 The embodiment shown essentially corresponds to that shown in the Fig. 1 to 8 shown embodiment, so that the description for the latter embodiment applies accordingly to the first embodiment.

[0058] As in Fig. 9 to 11As can be seen, the plate parts 10A, 10B, 10C each have a collar-shaped or sleeve-shaped projection 29 at each planting opening 12, which, when the plate part 10A, 10B, 10C is inserted into the installation opening 2, projects towards the rear wall 4 into the cavity 11 relative to an adjacent rear surface area of ​​the plate part 10A, 10B, 10C and there delimits the planting opening 12 at the top. The projection 29 is arranged on a sleeve-shaped component 30, which is inserted into the Figs. 13 and 14 is shown. The plate parts 10A, 10B, 10C each have an opening for each planting opening 12, through which a section of the sleeve-shaped component 30 passes. Each sleeve-shaped component 30 has a flange-like edge 31 at one of its axial ends, with which it rests flatly against the front side of the plate part 10A, 10B, 10C.

[0059] The projection 29 projecting from the rear side of the plate part 10A, 10B, 10C is provided at the end of the sleeve-shaped component 30 remote from the flange-like edge 31 and is partially beveled on its front side and arranged on the plate part 10A, 10B, 10C such that the upper end of the sleeve-shaped component 30 projects further toward the rear wall 4 than its lower end. As shown in Figs. 13 and 14 As can be seen, a portion of the collar-shaped projection 29 which delimits the planting opening 12 at the top has slit-shaped water passage openings 32.

[0060] When installing the wall component 10' into the inner cavity 3, the lower panel part 10A is first installed into the inner cavity 3, and then the cavity 11 formed between the panel part 10A and the rear wall is filled with plant substrate from above through the installation opening 2. The rear wall 4 of the housing part is provided with retaining projections 33 that extend into the inner cavity 3. These projections are firmly connected to the rear wall 4 and against which the panel parts 10A, 10B, 10C rest in the installed position. The retaining projections 33 are preferably made of recycled PVC. Screws are threaded through the panel parts 10A, 10B, 10C from the installation opening 2, engaging the retaining projections 33.

[0061] In a further assembly step, the middle panel section 10B is installed into the inner cavity 3, and the cavity 11 formed between it and the rear wall is filled with planting substrate from above. The upper panel section 10C is then installed and backfilled with planting substrate in the same way. Plants can be planted into the planting substrate through the planting openings 12.

[0062] As in Fig. 3 and 11As can be seen, the kit has an irrigation device with a water line 34, which is arranged for irrigating the plant substrate in the part of the inner cavity 3 located between the upper wall region 9A of the front housing wall 9 and the rear wall 4. The water line 34 runs essentially parallel to the rear wall 4 and parallel to the housing base 7 and has a plurality of water outlet openings 35 spaced apart from one another in the longitudinal direction of the water line 33, through which water can be released onto the plant substrate. The water outlet openings 35 are arranged above the cavity 11.

[0063] On a side wall 9C of the housing part 1, the water pipe 34 has a water connection 36 that can be connected to a supply line. If the greenable wall element is integrated into a thermal insulation composite layer of a building, the water connection 36 is arranged within the thermal insulation composite layer at a distance from the outer surface of the thermal insulation composite layer facing away from the building.

Claims

1. Kit for producing a greenable wall element, having a housing part (1) which has a front-side installation opening (2) and an inner cavity (3) which is delimited by a rear wall (4), a left-hand side wall (5), a right-hand side wall (6) and a housing base (7) of the housing part (1), wherein the rear wall (4), the side walls (5, 6) and the housing base (7) are of watertight form and the rear wall (4) is connected in a watertight manner to the side walls (5, 6) and to the housing base (7) and the latter is connected in a watertight manner to the side walls (5, 6), having at least one wall component (10, 10') which has at least one planting opening (12) and which is insertable into the installation opening (2) of the housing part (1), and connectable thereto, in such a way that the wall component (10, 10') extends in a vertical direction and, between the surface spanned by the planting opening (12) and the rear wall (4) of the housing part (1), there is formed at least one cavity (11) which is fillable with a planting substrate in such a way that a plant rooted in the planting substrate can grow through the planting opening (12) to the front side, directed away from the cavity (11), of the wall component (10, 10'), wherein at least the rear wall (4) of the housing part (1) is of thermally insulating design, wherein the housing part (1) has an upper housing wall (8) which is connected to the rear wall (4) and to the side walls (5, 6) and which upwardly delimits the inner cavity (3) of the housing part (1), and wherein provision is made on the rear wall (4) of the housing part (1) of fastening points (23) at which there are able to be attached fastening elements passing through the rear wall (4) for anchoring in the outer wall of the building, characterized in that, for integrating the greenable wall element into a thermal-insulation composite layer arranged on an outer wall of a building, provision is made at the boundary of the housing part (1), which borders the installation opening (2), of plaster-connection profiles (13A, 13B, 13C, 13D) which have a plaster pull-off edge (14, 14D) and which are connected to at least one plaster-in fabric (15A, 15B, 15C, 15D), in that the plaster-in fabric(s) (15A, 15B, 15C, 15D), for plastering into a plaster layer to be applied to an insulation-material layer of the thermal-insulation composite layer that is adjacent to the wall element, protrudes / protrude beyond the outer contour of the housing part (1) on all sides, in that the kit has covers (24) for the fastening points (23) that are connectable in a watertight manner to the wall region of the rear wall (4) that borders the fastening point (23), and in that provision is made on the housing part (1) of a drip strip (22) which extends along the lower boundary of the installation opening (2) and whose boundary region which is directed away from the rear wall (4) protrudes in relation to the plane spanned by the plaster pull-off edges (14) of the plaster-connection profiles (13A, 13B, 13C, 13D).

2. Kit according to Claim 1, characterized in that the fastening points (23) each have a countersink (25) which is formed in the front-side surface, directed towards the inner cavity (3) of the housing part (1), of the rear wall (4).

3. Kit according to Claim 2, characterized in that the countersink (25) in each case has a base and a circumferential wall, which delimit a receiving space for a head part of the fastening element, in that, in the base of the countersink (25), there is formed a blind hole through which the rear wall (4) is drillable and / or pierceable orthogonally to the plane spanned by it, or in that, in the base of the countersink (25), there is arranged a through-hole, and in that the blind hole or the through-hole is spaced apart from the circumferential wall of the countersink (25) and is preferably arranged centrally in relation thereto.

4. Kit according to Claim 2 or 3, characterized in that the dimensions of the countersink (25) are selected in such a way that an anchor head of an ETICS anchor (26) is fully countersinkable in the countersink (25), preferably in such a way that the anchor head is arranged flush with the front-side surface, directed towards the inner cavity (3) of the housing part (1), of the wall region of the rear wall (4) that borders the countersink (25).

5. Kit according to one of Claims 1 to 4, characterized in that the covers (24) for the fastening points (23) are in the form of plasters having a watertight film which is coated on one side with an adhesive layer, adhering to the film, for connection to the rear wall (4) of the housing part (1), and in that the adhesive layer is covered by a peelable protective film.

6. Kit according to one of Claims 1 to 5, characterized in that the side walls (5, 6), the housing base (7) and the upper housing wall (8) have at least one layer composed of a thermally insulating material, and in that the rear wall preferably has a lower thermal conductivity than said material.

7. Kit according to one of Claims 1 to 6, characterized in that the thermally insulating rear wall (4) has - at least one layer composed of an aerogel and / or - at least one layer composed of rigid polyurethane foam and / or - at least one layer composed of rigid polyester foam and / or - at least one layer composed of rock wool and / or - at least one layer composed of a renewable insulation material, in particular cork and / or soft wood fibre, or - is designed as a vacuum panel.

8. Kit according to one of Claims 1 to 7, characterized in that the rear wall (4) and / or the side walls (5, 6) and / or the housing base (7) and / or the upper housing wall (8) have / has at least one layer composed of an insulation material that, at its inner surface directed towards the inner cavity (3) of the housing part (1) and / or at its outer surface directed away from the inner cavity (3), is coated with a watertight layer, in particular a PVC sealing film or a PVC panel.

9. Kit according to one of Claims 1 to 8, characterized in that the housing part (1) has a front housing wall (9) which is adjacent to the installation opening (2), - in that the front housing wall (9) has a left-hand wall region (9C) which is connected to the left-hand side wall (5) and which projects in relation thereto in the direction of the left-hand boundary of the installation opening (2) and behind which the inner cavity (3) of the housing part (1) extends, - in that the front housing wall (9) has a right-hand wall region (9B) which is connected to the right-hand side wall (6) and which projects in relation to the right-hand side wall (6) in the direction of a right-hand boundary of the installation opening (2) and behind which the inner cavity (3) of the housing part (1) extends, and in that the wall component (10, 10'), when it has been inserted into the installation opening (2) of the housing part and connected to the latter, extends in the inner cavity (3) as far as behind the left-hand and right-hand wall regions (9C, 9B) of the front housing wall (8).

10. Kit according to one of Claims 1 to 9, characterized in that, in the inner cavity (3) of the housing part (1), there are arranged at least two first bars (27) which extend in the vertical direction and which are fixed to the housing part (1), in that the wall component (10) has multiple second bars (28) which are insertable transversely to the first bars (27) into the inner cavity (3) of the housing part (1) and are connectable therein to the first bars (27) so as to form a slatted grating in such a way that the planting openings (12) are each bordered by adjacent horizontal and vertical bars (27, 28).

11. Kit according to Claim 10, characterized in that the first bars (27) each have at least one fastening flange which is fixed to the rear wall (4), in that the first bars (27) have notches which are open towards the installation opening (2), and in that the second bars (28) are insertable into the notches of the first bars (27) through the installation opening (2) of the housing part (1).

12. Kit according to Claim 11, characterized in that the notches - from their open end directed towards the installation opening (2) to their closed end directed towards the rear wall (4) - have a downwardly directed component.

13. Kit according to one of Claims 1 to 9, characterized in that the wall component (10) has at least one panel part (10A, 10B, 10C) which is extended through by at least one planting opening (12) transversely to the plane spanned by the panel part (10A, 10B, 10C), in that the panel part (10A, 10B, 10C) is insertable into the installation opening (2) of the housing part (1), and connectable to the housing part (1), in such a way that the panel part (10A, 10B, 10C) extends in the vertical direction and, between the planting opening (12) and the rear wall (4) of the housing part (1), there is formed at least one cavity (11), in that the panel part (10A, 10B, 10C) has at at least one planting opening (12) a collar-shaped or sleeve-shaped projection (29) which, when the panel part (10A, 10B, 10C) has been inserted into the installation opening (2), protrudes into the cavity (11) towards the rear wall (4) in relation to an adjacent rear-side surface region of the panel part (10A, 10B, 10C) and, there, upwardly delimits the planting opening (12).

14. Kit according to Claim 13, characterized in that that end-face boundary of the collar-shaped or sleeve-shaped projection (29) which is directed towards the rear wall (4) is designed in such a way that its upper end projects further to the rear wall (4) than its lower end.

15. Kit according to Claim 13 or 14, characterized in that at least one sub-region of the collar-shaped or sleeve-shaped projection (29) that upwardly delimits the planting opening (12) has at least one water-passage opening (32).

16. Kit according to one of Claims 1 to 15, characterized in that the kit has a watering device with at least one water line (34) which has, for watering the planting substrate in the inner cavity (3), at least one water-outlet opening (35) which is preferably arranged above the at least one planting opening (12).