BUILDING WALL

DE502021008479D1Active Publication Date: 2025-09-18PMFHOUSING GMBH
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Patent Information

Application Number
DE502021008479
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-03-14
Filing Date
2021-03-13
Publication Date
2025-09-18
Estimated Expiration
2041-03-13

AI Technical Summary

Technical Problem

Existing building wall constructions face challenges in achieving homogeneous filling and stability with foamed materials, leading to deformation, thermal bridges, and reduced mechanical strength due to large gaps and uneven filling processes.

Method used

A building wall design utilizing a base frame with struts and a foamed filling material, where the space between struts is defined by textile covers and shells, with controlled pressure application and precise filling to ensure uniform density and stability, using connecting threads to maintain shell integrity and prevent bulging.

Benefits of technology

The solution achieves homogeneous foamed filling, enhances mechanical and thermal stability, reduces deformation, and ensures a cost-effective construction method with improved load-bearing capacity and thermal insulation.

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Description

[0001] The invention relates to a building wall.

[0002] WO 2017 / 081212 A1 discloses a method for manufacturing a building with a plurality of walls. A flexible shell is first laid out at a predefined location. The flexible shell is then filled with a foaming material, which subsequently hardens, forming stable walls.

[0003] DE 199 50 139 A1 discloses a method for closing the gaps between the beams of a roof truss. Mechanical stability is adequately ensured by the beams. Here, sheets are attached to the beams by clamping and then filled with foam. The grid spacing between spacers is comparatively large at more than approximately 10 cm, which leads to a relatively large deformation of the surface, although this is acceptable for the roof structure. The gap defined by the sheets and to be filled extends, for example, continuously from a base purlin to a ridge purlin (column 1, lines 11ff), which is typically well over 2 meters long. A similar construction is known from DE 35 02 323 A1.

[0004] Another building wall is known from DE 25 34 815 A1.

[0005] The task is to provide an improved building wall.

[0006] The object underlying the invention is achieved by a building wall, a building and a method according to the main claims; refinements are the subject of the subclaims and the description.

[0007] The invention comprises a building wall, which can be a floor wall, a roof wall, or a side wall of a building. The wall has a base frame comprising a plurality of struts. The struts are made, in particular, of wood. The base frame forms a space between the struts. The space is filled with a foamed filling material.

[0008] The space, especially next to the struts, ist by a textile cover. Specifically, the cover shape defines the space in a direction perpendicular to the wall plane, while the struts define the space in a direction parallel to the wall plane.

[0009] In particular, a plurality of spaces are formed between each other, each of which is separated from each other by a horizontal strut.

[0010] A separate envelope shape can be provided for each intermediate space, so that several envelope shapes arranged one above the other are provided for one wall.

[0011] Alternatively, a common first shell (outer shell or inner shell) can be provided for several gaps on at least one side. In the case of a one-sided common first shell, the shell form is then placed around the struts, starting from the side with the common first shell, and secured to them from both sides. For this purpose, struts can be guided through openings between two adjacent second shells (outer shell or inner shell).

[0012] In an alternative embodiment, both the outer shell and the inner shell are designed to jointly define a plurality of gaps. In this case, individual struts are inserted through the insertion channels of the pre-assembled shell forms. The shell forms can then have continuous shells on both sides.

[0013] Dividing a wall into a multitude of interspaces arranged one below the other promotes the formation of homogeneously filled spaces. The height of each space is thus limited by a horizontal strut. A new space begins at each horizontal strut. A low overall filling height is beneficial for a homogeneously filled space. In particular, the height of a space in a side wall should be no more than 1.5 m, and especially no more than 70 cm.

[0014] In one embodiment, the envelope comprises an outer shell that delimits the gap on an outer side of the wall and an inner shell that delimits the gap on an inner side of the wall.

[0015] In one embodiment, the outer shell and the inner shell are connected to each other by at least one connecting thread, in particular by a plurality of connecting threads. The connecting thread, in particular, bridges the gap. In one embodiment, the shell mold is prefabricated and connected to the outer shell, the inner shell, and the connecting thread.

[0016] In one embodiment, the connecting threads are evenly distributed across a length direction and a width direction. In particular, adjacent connecting threads are spaced apart from one another in the length direction and width direction by a maximum of 5 cm, preferably a maximum of 2 cm or 1 cm, and / or the interstices contain an average number of at least 100, preferably 200 or 400 connecting threads per square meter, preferably at least 1000 or 5000 connecting threads per square meter.

[0017] In one embodiment, the filling material is placed under an internal pressure of at least 1.2 bar (overpressure) after curing and / or during foaming and curing and / or the filling material exerts a pressure load of at least 1.2 bar (overpressure) on the inner shell and / or on the outer shell.

[0018] In one embodiment, the base frame, in particular a strut of the base frame, comprises a filling opening for filling the filling material into the intermediate space.

[0019] In one embodiment, the shell is attached to a strut of the base frame. The outer shell is attached to an outer side of a strut of the base frame, and / or the inner shell is attached to an inner side of a strut of the base frame. The attachment is then particularly such that the struts delimit, at least in sections, the receiving space for the filling material in the direction of the wall plane.

[0020] In one embodiment, two adjacent spaces within a wall are each delimited by two separate outer shells and / or two separate inner shells. The adjacent spaces within a wall can each be delimited by two separate shell shapes. Particularly when prefabricated shell shapes with connecting threads are used, delimiting several spaces with a common shell is not readily possible, since the shell must be passed through each space. Options for resolving this conflict are described in this application.

[0021] In one embodiment, a common strut is arranged between the two adjacent spaces. The two separate outer shells and / or inner shells are attached to the common strut.

[0022] In one embodiment, a wall, in particular the base frame of the wall, comprises several intermediate spaces. The intermediate spaces are each separated from one another by a common strut. The repeated subdivision of a wall creates several small intermediate spaces that must be filled separately. Tests have shown that a foam quality of plastic foam that meets the high requirements for wall or roof elements in terms of strength, tightness, and thermal conductivity can be achieved, especially when the size, in particular the height, of the intermediate spaces to be filled is comparatively small. In addition, additional struts create improved stability and dimensional stability of the base frame and thus of the finished wall.

[0023] In one embodiment, the wall is a floor wall arranged on a particularly uneven subsurface. The gap is at least indirectly defined on the floor side by the subsurface. A film can define the gap underneath and, in particular, rest on the floor. The advantage is that no significant preparatory work on the subsurface is required. The film can be applied to the untreated subsurface, and any unevenness is automatically leveled by the filler material. The film prevents any material interaction between the subsurface and the filler material.

[0024] In one embodiment—particularly for the base wall—the gap is filled layer by layer with several quantities of filler material. By applying the filler material in layers, the quality of the foamed material can be improved. This ensures a homogeneous density distribution, preventing the filler material from detaching from the wall during curing, which would otherwise occur.

[0025] In one embodiment, the intermediate space is delimited at the top by planking, in particular wherein the planking comprises a plurality of holes for the introduction of filler material. The planking forms a defined closure of the intermediate space at the top, so that the floor is largely flat on the top side. In particular, the planking is already connected to the intermediate space during the filling of the filler material, so that it can be considered an integral part of the casting mold. The holes in the planking serve to admit the filler material, in particular in the small amount required to completely fill the intermediate space.

[0026] The invention further relates to a building with a plurality of walls of the aforementioned type.

[0027] The invention further relates to a method for producing a wall of the aforementioned type, comprising the following method steps: Providing the base frame; attaching the shell mold to the base frame; filling the intermediate space with at least a quantity of filling material, wherein the filling material foams after filling.

[0028] In one embodiment, a prefabricated shell is used, with the inner shell of the shell being connected to the outer shell by connecting threads before the shell is attached to the base frame. This allows for easy on-site assembly of the shell, as only the prefabricated elements need to be inserted and secured.

[0029] In one embodiment, the shell is at least partially passed through the gap. Furthermore, the outer shell of the shell is attached to a strut on the outside of the wall, and an inner shell of the shell is attached to the strut on the inside of the wall. This method enables the attachment of the inner and outer shells, which are firmly fastened with connecting threads, to the prefabricated base frame.

[0030] The inner and / or outer shells can be secured to the strut using a sealing layer—for example, adhesive tape, elastic, or paste-like sealing materials—and staples shot into the strut. This is a simple and stable method and requires no special tools.

[0031] In one embodiment, the outer shell and / or the inner shell are pressed against the strut with a fastening fitting for fastening. In particular, the outer shell or inner shell is thus clamped between the fastening stop and the strut, which enables reliable fastening and sealing. The fitting is arranged circumferentially around the gap, whereby the fitting can also be an arrangement with several individual fitting parts (the fitting does not have to be a single, completely enclosed individual fitting part).

[0032] The following general conditions must be considered in particular: When filling with foam, especially with foamed plastics such as polyurethane, polystyrene, PIR (polyisocyanurate), etc., only a limited amount of foam material can be introduced into the gap in the time available for one shot. Therefore, the individual gaps are comparatively small. If a large amount of filler material is introduced simultaneously, the reaction heat in the gap can cause overheating, which can lead to damage to the frame, the filler material, or other elements.

[0033] The wall should ideally support not only the thermal properties of the wall but also the mechanical load-bearing capacity. The base frame can therefore be manufactured significantly more cost-effectively. For mechanical strength, it is advantageous if the foam forms a direct, material-tight bond with the base frame. This is achieved by applying high pressure during production.

[0034] Preferably, a defined pressure of the filler material is achieved in the gap. To achieve this, a precisely calculated amount of filler material is poured into a defined gap volume, which cures into a foam of defined density.

[0035] High pressure is also beneficial for Avoiding large voids in the filling material (prevents thermal bridges and reduced mechanical strength); avoiding gaps / detachment between the base frame and the filling material (prevents thermal bridges and reduced mechanical strength and leaks for drafts and water vapor); increasing the strength of the foam through the compaction that occurs during foaming.

[0036] Building up the required pressure and limiting the amount of filler material, especially when introduced at one time, requires a sealed, fully enclosed space of a defined size. Furthermore, overflow of foam into the adjacent chamber during foaming must be prevented, as otherwise the pressure is not correctly adjusted and filler material could flow into adjacent spaces, where it could foam uncontrollably.

[0037] Gaps with a large length or width (side length >1.5m) tend to shrink due to the curing filler material, which can cause the base frame to deform (e.g., warp inward), especially if the foam is filled with the wrong pressure. Therefore, sealing and stiffening struts, especially horizontal struts, are inserted at regular intervals (e.g., approximately 0.5 to 1m) to keep the side length of the gap small and limit bending.

[0038] The foam material is particularly low-viscosity to ensure optimal filling of the gap. Since this low viscosity persists even during or shortly after foaming, the gap must be completely sealed.

[0039] Preferably, the inner shell and the outer shell are glued to the base frame, in particular using double-sided adhesive tape or elastic or pasty sealing materials.

[0040] Preferably, the gaps are filled through an opening in the base frame or through a raised edge of the shell. The openings are then closed, for example, with plugs, or the raised areas are sealed with clamps, particularly with wooden or metal strips, during the foaming phase. Ventilation openings (e.g., holes in the upper corners) are preferably provided to allow the air in the element to escape. Otherwise, the gaps in the upper area cannot be completely filled.

[0041] The advantages and embodiments mentioned with regard to the method and the device are also applicable to the device or the method.

[0042] The invention is explained in more detail below with reference to the figures, in which: Figure 1 shows a base frame of a side wall according to the invention; Figure 2 shows an envelope shape of a wall according to the invention in one embodiment in different representations; Figure 3 shows the method steps for producing a side wall or roof wall; Figure 4 shows a base frame of a floor wall according to the invention; Figure 5 shows the method steps for producing a floor wall; Figure 6 shows an envelope shape of a wall according to the invention in a further embodiment; Figure 7 shows an envelope shape of a wall according to the invention in a further embodiment.

[0043] Figure 1shows a plan view of a base frame 2 of a wall according to the invention. The base frame comprises a plurality of struts 21, 22, which are aligned in different directions, in particular transversely to one another, and form a wall plane. In the case of a side wall, first struts 21 are aligned vertically and second struts 22 are aligned horizontally. In wall elements, individual struts 22 can also be aligned at an angle to the horizontal, for example, to accommodate a sloping roof in gable walls. In this case, the envelope shapes must be designed accordingly.

[0044] Between the struts 21, 22, gaps 23 are formed into which a foaming filling material is filled during the manufacture of the wall.

[0045] Figure 2ashows a shell shape 3 in detail. Such a shell shape 3 defines a gap 23 in a direction transverse to the wall plane. The shell shape 3 comprises an outer shell 31, which covers the gap 23 on an outer wall side 11, and an inner shell 32, which covers the gap 23 on an inner wall side 12 ( Figures 2b and 2c The outer shell 31 is connected to the inner shell 32 via a plurality of connecting threads 33. When the gap 23 is filled with filler material, the filler material generates internal pressure on the outer shell 31 and the inner shell 32. The connecting threads keep the outer shell 31 and the inner shell 32 at a predefined distance from each other, thus preventing bulging. Furthermore, the compressive filler material and the tensile connecting threads can create increased flexural rigidity in the wall—similar to reinforced concrete.

[0046] The wall should be constructed in such a way that the filler material provides a significant component of stability. The base frame can be dimensioned so small that the required load-bearing capacity of the wall is not provided by the frame itself. The frame can therefore be constructed significantly more cost-effectively than, for example, a wall constructed using traditional carpentry using a wooden frame.

[0047] In order to ensure that the load-bearing capacity of the wall is largely determined by the filler material, the filler material must be introduced into the gap in such a way that a high pressure of at least 1.2 bar (overpressure) is created in the gap during foaming. In particular, the filler material permanently generates a particularly considerable pressure on the outer shell and on the inner shell, in particular at least 1.2 bar overpressure, even when cured. To promote this, a number of additional features are advantageous: The amount of filler material is of great importance during filling, as this is crucial for generating the advantageous minimum pressure during curing. For stability, it is advantageous if the amount of filler material that is as precise as possible is filled into the gap. The target parameter used is the density of filler material in the gap, which can vary for different applications and materials.For example, to form a solid wall, a density of 50 kg / m3 (cubic meter) is required. From this, taking the volume of the gap into account, the exact amount of filler material to be poured into the gap can be calculated. The gap is then filled with exactly the calculated amount of filler material. The optimal filler pressure of at least 1.2 bar during curing is then automatically established.

[0048] It can be seen in the Figure 2The large number of connecting threads per unit area, which promotes the most flat surface shape possible on the finished wall and enables high compressive strength of the casing material. A preferred number of connecting threads per unit area is in particular at least 100, preferably at least 200, or 1000, or 2000 connecting threads per square meter. The connecting threads are in particular evenly distributed across the length x and the width y.

[0049] The distance between two adjacent connecting threads in the length direction y and in the width direction y is, in particular, max. 5 cm, in particular max. 2 cm. In particular, at least individual connecting threads have a distance of max. 10 mm from each other.

[0050] The gaps are designed to be comparatively small. This is the only way to achieve uniformly high pressures in the filler material, dimensional stability, and sufficiently low reaction temperatures. The side length of the gap, i.e., the length (in the x-direction) of a gap 23, and the width (in the y-direction) of a gap 23, is a maximum of 1.5 m, preferably a maximum of 1.2 m.

[0051] Such enveloping forms 3 can be prefabricated. For assembly, the enveloping form 3 must be partially guided through the gap 23 from one side. Therefore, each enveloping form is used only to define a single gap 23.

[0052] Based on the Figure 3 The steps of the wall production are explained in more detail in cross-sectional view. On the outer wall side 11 and the inner wall side 12, the struts 21, 22 are each provided with a double-sided adhesive tape 57 ( Figure 3a). Using the adhesive tape 57, the outer shell 31 is attached to the outside of the strut 21, 22 and the inner shell 32 is attached to the inside of the strut 21, 22 ( Figures 3b and 3c ). As an alternative to adhesive tapes, other adhesive and / or sealing media, particularly elastic or pasty ones, can be used.

[0053] A further sleeve 3b is now attached to the struts to which a sleeve is already attached. The further sleeve can also be attached with this adhesive tape if there is still sufficient width of the previously applied adhesive tape. Otherwise, a second double-sided adhesive tape 57b is applied to the first sleeve 3 in the area of ​​the struts, using which the further sleeve 3b is attached to the struts. For permanent fixation, a circumferential fastening strip 58 is applied to the sleeves in the area of ​​the struts, which is attached to the struts separately, i.e. in addition to the adhesive tape. This can be done by screwing 59 onto the struts ( Figure 3d Even if the adhesive strength decreases due to aging, this ensures permanent fixation of the casing to the struts. Staples or nails can also be used as fastening hardware for the casing.

[0054] However, this overlapping arrangement of the sleeves in the area of ​​the struts is not required. The sleeves can also be attached side by side to a common strut, provided there is sufficient space. In this case, two adjacent sleeves can be attached to the common strut using a single adhesive tape or two separate adhesive tapes.

[0055] The space 23 is then filled with the foaming filling material 4 ( Figure 3e ).

[0056] Figure 6 shows a modification of the envelope form 3 according to Figure 2aThe shell shape is configured to define a plurality of intermediate spaces. Thus, the outer shell 31 is designed to be continuous and encompass several intermediate spaces. Several separate inner shells 32 are designed to define only one intermediate space each. Thus, passages 34 are provided between the individual inner shells through which the struts 22, in particular the cross struts, can be guided between two inner shells to reach their destination between the connecting threads 33. The shell shape 3 and the base frame 2 can be largely preassembled.

[0057] The inner shell and the outer shell are then attached to the struts as described above.

[0058] Figure 7 shows a further modification of the envelope form 3 according to Figure 2aThe shell shape is configured to define a plurality of intermediate spaces. Thus, the outer shell 31 and the inner shell are designed to be continuous and form a plurality of intermediate spaces. Between connecting threads, there are insertion channels 35 for struts, in particular the cross struts 22, which can be passed through. After passing through, the passed-through struts 22 can be connected to another strut 21, in particular the vertical strut 21. In this embodiment, the shell shape 3 and the base frame 2 can also be largely pre-assembled. In the base frame, the vertical strut 21 must be subsequently assembled to the horizontal strut 22.

[0059] The inner shell and the outer shell are then attached to the struts as described above.

[0060] Figure 4ashows the base frame 2 in a configuration for a floor wall. The base frame 2 has first and second struts 21, 22, which are oriented in different directions and form intermediate spaces 23. The intermediate spaces 23 can be further substructured using intermediate struts 24, as shown in Figure 4b shows.

[0061] The Figure 4b shows a planking 55 in sections, which covers the gaps 23 during the manufacturing process of the floor wall. The planking 55 can also be used in the design according to Figure 4a (without intermediate struts 24).

[0062] Figure 5 shows the further steps for producing a floor wall 1B on an uneven surface 91.

[0063] A film 52 is laid out on the substrate 91. Several ground anchors 51 are inserted into the substrate ( Figure 5a). The ground anchors 51 are designed to transmit a tensile force acting on them to the substrate 91. If the tension anchors 51 penetrate the film 52, the film 52 must be sealed at the tension anchors 51.

[0064] Such a tension anchor 51 may comprise a threaded rod which is fixed in the ground.

[0065] A foundation fitting 53 is attached to the tension anchors 51 using a foundation fastening 54 ( Figure 5b ). The foundation fitting may be an angle fitting. The foundation fastening 54 may, for example, comprise a nut that is fastened to the threaded rod. Individual struts 21, 22 of the base frame 2 made of Figure 4 attached.

[0066] Between the struts 21, 22, gaps 23 are now formed, which are subsequently filled with foaming filling material. Excess foil can be cut off ( Figure 5c ).

[0067] Now the filling process begins ( Figure 5d ). First, a first amount of foaming filler material 41 is introduced into the gap 23. The first amount is introduced into the edge areas of the gap 23, particularly in the corner areas of the struts 21, 22. Areas of the foundation fastening and the fittings are also enclosed by filler material. The small amount of filler material during the initial filling seals the individual gaps from one another and the frame undersides from the film. The small amount of filler material prevents the base frame from lifting due to the foam pressure. The first amount of filler material 41 then hardens for a few minutes.

[0068] Subsequently, a second amount of filling material is introduced into the space 23 ( Figure 5e). In the area of ​​the gap, the substrate 91 is covered with a thin layer of filler material. The filler material also flows into gaps between or under the struts that arise during the pressureless curing of the previous filling. These gaps are thus closed, ensuring a good bond with the frame material. The gap 23 is not completely filled. The second amount of filler material 42 then hardens for a few minutes.

[0069] The above process can now be repeated as often as desired ( Figure 5f) until the filler material has reached approximately a predetermined average distance D from the upper edge O of the struts, here, for example, 4 cm. For example, a third quantity of filler material 43 is applied to the second quantity of filler material 42 and then cures for a few minutes. Should parts of the cured filler material protrude above the struts, these parts can simply be cut off and placed in the gap 23, where they will then be enclosed by the next quantity of filler material.

[0070] Now, the gap 23 is covered at the top with a planking 55. The planking 55 has holes 56, each approximately 10mm in diameter, at regular intervals of approximately 40-80cm.

[0071] Small final amounts of filling material 44 are now introduced through these holes 56 ( Figure 5h). This quantity now foams up and fills the gap 23, at least on a substantial part of the surface, completely up to the planking 55 at the top ( Figure 5i ). It is important that the final amount 44 added is not too large, since otherwise the pressure from below against the planking 55 may become too great and cause bulging. List of reference symbols

[0072] 1Wall 11Outside wall 12Inside wall 2Base frame 21First strut / vertical strut 22Second strut / horizontal strut 23Gap 24Intermediate strut 3Shell shape 31Outer shell 32Inner shell 33Connecting thread 34Perforations 35Inlet channel 4Filling material 41First filling quantity of filling material 42Second filling quantities of filling material 43Third filling quantities of filling material 44Final filling quantity of filling material 51Ground anchor 52Foil 53Foundation fitting 54Foundation fastening 55Planking 56Hole 57Double-sided adhesive tape 58Fastening fitting 59Wood screw DDistance 0Top edge of the struts 91Substratum 100Building

Claims

1. Building wall (1), in particular floor wall, roof wall or side wall, with a base frame (2) comprising a plurality of braces (21, 22), wherein the base frame (2) forms an intermediate space (23) between the braces, wherein the intermediate space (23) is filled by a foamed filling material (4), wherein the base frame (2) is dimensioned in such a way that a required load-bearing capacity of the building wall is not provided by the base frame, characterised in that the filled intermediate space (23), in particular next to the braces (21, 22), is delimited by a textile enveloping form (3).

2. Building wall (1) according to the previous claim, characterized in that the enveloping form (3) comprises an outer shell (31) delimiting the intermediate space (23) on a wall outer side (11), and that the enveloping form (3) comprises an inner shell (32) delimiting the intermediate space (23) on a wall inner side (12), in particular that the outer shell (31) and the inner shell (32) are connected to one another by at least one connecting thread (33), in particular a plurality of connecting threads (33), in particular wherein the connecting thread (33) bridges the intermediate space (23).

3. Building wall (1) according to any of the previous claims, characterised in, that the enveloping form (3) is attached to a brace (21, 22) of the base frame (2), in particular that the outer shell (31) is attached to an outer side of a brace (21, 22) of the base frame (2) and / or that the inner shell (32) is attached to an inner side of a brace (21, 22) of the base frame (2).

4. Building wall (1) according to any of the previous claims, characterised in that two adjacent intermediate spaces (23a, 23b) within a wall are each delimited by two separate outer shells (31) and / or each delimited by two separate inner shells (32), in particular in that two adjacent intermediate spaces (23a, 23b) within a wall are in each case delimited by two separate enveloping form (3a, 3b).

5. Building wall (1) according to any of the previous claims, characterized in that the enveloping form (3) has a first shell (31), in particular outer shell (31), which is designed to delimit a plurality of intermediate spaces, and in that the enveloping form (3) has at least two separate second shells (32), in particular inner shell (32), which are each designed to delimit an intermediate space, the two separate second shells (32) being connected to the first shell (31) via connecting threads (33), a passage (34) being provided between the two second shells (32) for a brace (22) to pass through, and / or that the enveloping form (3) has a first shell (31), in particular outer shell (31), which is designed to delimit a plurality of intermediate spaces, and in that the enveloping form (3) has a second shell (32), in particular inner shell (32), which is designed to delimit a plurality of intermediate spaces, the second shell (32) being connected to the first shell (31) via the connecting threads, an insertion channel (35) for passing a brace (22) being provided between the first shell (31), the second shell (32) and the connecting threads (33).

6. Building wall (1) according to any of the preceding claims, characterised in that the wall is a side wall (S) or a roof wall (1D) and in that the base frame (2) has at least three horizontal braces (22) arranged one above the other so that a plurality of intermediate spaces (23) arranged one below the other are formed.

7. Building wall (1) according to any of the preceding claims, characterised in that the wall is a floor wall (1B) which is arranged on a ground (91), the intermediate space (23) being limited on the floor side at least indirectly by the ground (91).

8. Building wall (1B) according to any of the preceding claims, characterised in that the intermediate space (23) is filled up in layers by several quantities (41, 42, 43, 44) of filling material, in particular that the intermediate space (23) is delimited at the top by a planking (56), in particular wherein the planking (56) comprises a plurality of holes for the introduction of filling material.

9. A building comprising a plurality of walls (1) according to any of the preceding claims.

10. Method of manufacturing a wall according to any of the claims 1 to 8, comprising the following method steps: Providing the base frame (2), fixing the enveloping form (3) to the base frame (2), filling the intermediate space (23) with at least a quantity of filling material, the filling material foaming up after filling.

11. Method according to the previous claim, wherein the enveloping form (3) is prefabricated and / or wherein an inner shell (32) of the enveloping form (3) is connected to an outer shell (31) of the enveloping form (3) by connecting threads (33) before the enveloping form is attached to the base frame, in particular wherein the enveloping form (3) is passed at least partially through the intermediate space (23), and wherein the outer shell (31) of the enveloping form (3) is fastened to a brace (21, 22) on the outside of the wall, and wherein the inner shell (32) of the enveloping form (3) is fastened to the brace (21, 22) on the inside of the wall.

12. Method according to any of claims 10 to 11, characterised in that the filling material has, when filled, a viscosity of at most 1000 mPa*s, and in particular that the inner shell and the outer shell lie sealingly against the base frame when filled.

13. Method of manufacturing a wall according to any of claims 10 to 12, wherein for fastening the outer shell (31) and / or the inner shell (32) is urged against the brace (21, 22) by a fastening fitting (58).

14. Method of manufacturing a wall according to any of claims 10 to 13, wherein prior to filling the intermediate space with filler material, a target density of the filler material is determined; based on the target density and based on the volume of the intermediate space, an amount of filler material is determined; subsequently, the filling of the intermediate space with the determined amount of filling material is performed.