US20230096923A1

US20230096923A1 - Building Wall

Info

Publication number: US20230096923A1
Application number: US17/909,759
Authority: US
Inventors: Andreas Mohr
Original assignee: PMFHousing GmbH
Current assignee: PMFHousing GmbH
Priority date: 2020-03-14
Filing date: 2021-03-13
Publication date: 2023-03-30
Also published as: EP4118277C0; JP7770029B2; JP2023518204A; EP4118277A1; WO2021185711A1; EP4118277B1; DE102020107069A1; CN115298402A; CA3170946A1

Abstract

A building wall (1),

in particular a floor wall, roof wall or side wall, which is provided 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).

Description

CROSS REFERENCE TO RELATED APPLICATIONS

This application is the U.S. national stage of International Application No. PCT/EP2021/056436, filed on 2021 Mar. 13. The international application claims the priority of DE 102020107069.1 filed on 2020 Mar. 14; all applications are incorporated by reference herein in their entirety.

BACKGROUND

The invention relates to a building wall.
WO 2017/0812 A1 discloses a method for producing a building with a plurality of walls. First, a flexible enveloping form is spread out at a predefined location. The flexible enveloping form is then filled with a foaming material which subsequently hardens, forming stable walls.
DE 199 50 139 A1 discloses a possibility for closing the spaces between the beams of a roof truss. The mechanical stability is sufficiently ensured by the beams. In this case, strips are attached to the beam by clamps and then filled with foam. A grid spacing between spacers is comparatively large at more than approx. 10 cm, which leads to a comparatively large deformation of the surface, but this is acceptable for the roof construction. The intermediate space delimited and to be filled by the sheets extends, for example, continuously from a foot purlin to a ridge purlin (Sp.1, Z. 11ff), which is usually a length of well over 2 metres in length. A similar construction is known from DE 35 02 323 A1.

SUMMARY

A building wall (1), in particular a floor wall, roof wall or side wall, which is provided 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).

DETAILED DESCRIPTION

It is an object to provide an improved building wall.
The object underlying the invention is solved by a building wall, a building and a method according to the main claims; embodiments are the subject of the subclaims and the description.
The invention comprises a building wall, which may be a floor wall, a roof wall or a side wall of a building. The wall has a base frame comprising a plurality of braces. The braces are in particular formed of wood. The base frame forms a space between the braces. The space is filled with a foamed filling material.
In one embodiment, the intermediate space is delimited, in particular next to the braces, by an enveloping form, which is in particular a textile form. In particular, the enveloping form delimits the intermediate space in a direction transverse to the wall plane, while the braces delimit the intermediate space in a direction parallel to the wall plane.
In particular, a plurality of spaces are formed between each other, each separated by a horizontal brace.
Each intermediate space can be provided with its own enveloping form, so that several enveloping forms arranged are provided one above the other for one wall.
Alternatively, a common first shell (outer shell or inner shell) can be provided for several intermediate spaces on at least one side. In the case of a common first shell on one side, the enveloping form is then placed around the braces starting from the side with the common first shell and attached to it from both sides. For this purpose, braces can be guided through passages between two adjacent second shells (outer shell or inner shell).
In an alternative embodiment, both the outer shell and the inner shell are designed to define a plurality of intermediate spaces together. In this case, individual braces are to be inserted through insertion channels of the pre-assembled enveloping forms. Then the enveloping forms can have continuous shells on both sides.
The subdivision of a wall into a multitude of intermediate spaces arranged one above the other favours the formation of homogeneously filled intermediate spaces. The height of a single intermediate space is thus limited by a horizontal brace. Consequently, a new intermediate space begins at each horizontal brace. A low total filling height is favourable for a homogeneously filled intermediate space. In particular, the height of an intermediate space of a side wall is max. 1.5 m, especially max. 70 cm.
In one embodiment, the enveloping form comprises an outer shell defining the intermediate spaces on an outer side of the wall and an inner shell defining the intermediate space on an inner side of the wall.
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 bridges the intermediate space in particular. In one embodiment, the enveloping form is prefabricated with the outer shell, the inner shell and the connecting thread.
In one embodiment the connecting threads are uniformly distributed over a length direction and a width direction respectively.
In one embodiment adjacent connecting threads in the length direction and in the width direction are at a distance from one another of max 5 cm, preferably max. 2 cm or 1 cm, and/or there is an average number of at least 100, preferably 200 or 400 connecting threads per square metre, preferably at least 1000 or 5000 connecting threads per square metre, in the intermediate spaces.
In an embodiment the base frame, in particular a brace of the base frame, comprises a filling opening for filling the filling material into the intermediate space.
In one embodiment, the enveloping form is attached to a brace of the base frame. In this case, the outer shell is fastened to an outer side of a brace of the base frame and/or the inner shell is fastened to an inner side of a brace of the base frame. The fastening is then in particular in such a manner that the braces at least partially limit the space to be filled for the filling material in the direction of the wall plane.
In one embodiment, two adjacent intermediate spaces within a wall are each delimited by two separate outer shells and/or each delimited by two separate inner shells. In this case, the adjacent intermediate spaces within a wall can each be delimited by two separate enveloping forms. Especially if prefabricated enveloping forms with connecting threads are used, it is not possible to limit several intermediate spaces by a common envelope without further ado, since the envelope has to be passed through the intermediate space in each case. Possibilities for solving this conflict are described within the scope of this application
In one embodiment, a common brace is arranged between the two adjacent intermediate spaces. The two separate outer shells and/or inner shells are attached to the common brace.
In one embodiment, a wall, in particular the base frame of the wall, comprises several intermediate spaces between each other. The intermediate spaces are each separated from each other by a common brace. The multiple subdivision of a wall creates several small intermediate spaces that are to 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, impermeability and thermal conductivity can be achieved in particular if the size, especially the height, of the respective intermediate spaces to be filled is comparatively small. Furthermore, additional braces create improved stability and dimensional stability of the base frame and thus of the finished wall.
In one embodiment, the wall is a floor wall that is arranged on a, particularly uneven, ground. The intermediate space is at least indirectly delimited on the floor side by the ground. A foil can delimit the intermediate space on the underside and, in particular, rest on the floor. The advantage is that no substantial preparatory work is required on the ground. The foil can be applied to the untreated ground and any unevenness is automatically levelled out by the filling material. The foil prevents any material interaction between the ground and the filling material.
In one embodiment—especially for the bottom wall—the intermediate space is filled in layers by several quantities of filling material. By filling in layers, the quality of the foamed material can be improved. In particular, the material has a homogeneous density distribution and an otherwise occurring detachment of the filling material from the wall during curing is prevented.
In one embodiment, the intermediate space is delimited on the upper side by a planking, in particular wherein the planking comprises a plurality of holes for the introduction of filling material. The planking forms a defined closure of the intermediate space at the top so that the floor is widely flat at the top. In particular, the planking is already connected to the intermediate space when the filling material is filled, so that it is to be regarded as a component of the mould. The holes in the planking serve to let in the filling material, in particular in a small quantity required to completely fill the intermediate space.
The invention further relates to a building having a plurality of walls of the aforementioned type.
The invention further relates to a method for manufacturing a wall of the aforementioned type, comprising the following method steps: Providing the base frame;
fixing the enveloping form to the base frame;
filling the intermediate space with at least a quantity of filling material, wherein the filling material foams up after filling.
In one embodiment, a prefabricated enveloping form is used, whereby the inner shell of the enveloping form is connected to the outer shell of the enveloping form by the connecting threads before the enveloping form is attached to the base frame. This allows for easy assembly of the enveloping form on site, as only the prefabricated elements need to be inserted and fastened.
In one embodiment, the enveloping form is at least partially passed through the intermediate space. Further, the outer shell of the enveloping form is attached to a brace on the outside of the wall and an inner shell of the enveloping form is attached to the brace on the inside of the wall. This method allows the inner and outer shells, which are firmly attached with the connecting threads, to be attached to the prefabricated base frame.
Fixing the inner shell and/or the outer shell to the brace can be done by a sealing layer—for example adhesive tapes, elastic or pasty sealing materials—and clips shot into the brace. This is a simple and stable method and does not require any special tools.
In one embodiment, the outer shell and/or the inner shell is urged against the brace with a fastening fitting for fastening. In particular, the outer shell or inner shell is consequently clamped between the fastening fitting and the brace, which enables reliable fastening and sealing. The fitting is in particular arranged circumferentially around the intermediate space, whereby the fitting can also be an arrangement with several individual fitting parts (the fitting does not have to be a one-piece and all-round closed individual fitting part).
In particular, the following underlying conditions must be taken into account:
When foaming out filler material, especially with foam plastics such as polyurethane, polystyrene, PIR (polyisocyanurate), etc. only a limited amount of foam material can be introduced into the intermediate space in the time available “for one shot”. Therefore, the individual intermediate spaces are comparatively small in size. If a lot of filling material is inserted at the same time, the reaction heat in the intermediate space can cause overheating, which can damage the frame, the filling material or other elements.
The wall should preferably support the mechanical load-bearing capacity in addition to thermal properties of the wall. The base frame can therefore be manufactured much more cost-effectively. For mechanical strength, it is advantageous if the foam forms a direct material bond with the base frame. This is made possible by applying high pressure during production.
Preferably, a defined pressure of the filling material is achieved in the intermediate space. For this purpose, a precisely calculated amount of filling material is filled into a defined intermediate volume, which hardens to a foam of defined density.
High pressure is also beneficial for

- Avoiding large cavities 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 leakage for draughts and water vapour);
- increasing the strength of the foam through the compression that takes place during the foaming process.

The build-up of the required pressure and the limitation of the filling material, which is especially introduced once, requires an intermediate space of defined size that is closed on all sides. Furthermore, overflowing of the foam into the adjacent chamber during foaming must be avoided, as otherwise the pressure is not set correctly and, if necessary, filling material can flow into adjacent intermediate spaces and foam up there in an uncontrolled manner.
Intermediate spaces with a large dimension in length or width (side length>1.5 m) tend to cause the curing filler material to change the shape of the base frame due to shrinkage (e.g. warping it inwards), especially if foamed with the wrong pressure. Therefore, sealing and stiffening braces, especially horizontal braces, are inserted at regular intervals (e.g. approx. 0.5 to 1 m) in order to keep the side length of the intermediate space small and to limit the bending.
The foam material is in particular of low viscosity in order to fill the intermediate space optimally. Since the low viscosity continues during foaming or shortly thereafter, the intermediate space must be completely sealed.
Preferably, the inner shell and the outer shell are bonded to the base frame, in particular by means of double-sided adhesive tape or elastic or paste-like sealing materials.
Preferably, the filling of the intermediate spaces takes place through an opening in the base frame or through a raised edge of the enveloping form.
Subsequently, the openings are closed, for example, by plugs or the lifted-off areas are sealed, in particular with clips, especially with wooden or metal strips during the foaming phase
Preferably, ventilation openings (e.g. holes) are provided in the upper corners to allow the air in the element to escape. Otherwise, the intermediate spaces in the upper area cannot be filled completely.
The advantages and embodiments mentioned with regard to the method and the apparatus are also applicable to the device and the method.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is explained in more detail below with reference to the figures; herein shows:

FIG. 1 a base frame of a side wall according to the invention;

FIG. 2A an enveloping form of a wall according to the invention in one embodiment in a first representation;

FIG. 2B an enveloping form of a wall according to the invention in one embodiment in a second representation;

FIG. 2C an enveloping form of a wall according to the invention in one embodiment in a third representation;

FIG. 3A the first process step for the manufacturing of a side wall or roof wall;

FIG. 3B the second process step for the manufacturing of a side wall or roof wall;

FIG. 3C the third process step for the manufacturing of a side wall or roof wall;

FIG. 3D the fourth process step for the manufacturing of a side wall or roof

FIG. 3E the fifth process step for the manufacturing of a side wall or roof wall;

FIG. 4A a first representation of a basic frame of a base wall according to the invention;

FIG. 4B a second representation of a basic frame of a base wall according to the invention;

FIG. 5A the first process step for the manufacturing of a bottom wall;

FIG. 5B the second process step for the manufacturing of a bottom wall;

FIG. 5C the third process step for the manufacturing of a bottom wall;

FIG. 5D the fourth process step for the manufacturing of a bottom wall;

FIG. 5E the fifth process step for the manufacturing of a bottom wall;

FIG. 5F the sixth process step for the manufacturing of a bottom wall;

FIG. 5G the seventh process step for the manufacturing of a bottom wall;

FIG. 5H the eighth process step for the manufacturing of a bottom wall;

FIG. 5I the ninth process step for the manufacturing of a bottom wall;

FIG. 6 an enveloping form of a wall according to the invention in a further embodiment;

FIG. 7 shows an enveloping form of a wall according to the invention in a further embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIG. 1 shows a base frame 2 of a wall according to the invention in plan view. The base frame comprises a plurality of braces 21, 22 which are aligned in different directions, in particular transversely to each other, and form a wall plane. In the case where the wall is a side wall, first braces 21 are oriented vertically and second braces 22 are oriented horizontally. In the case of wall elements, individual braces 22 can also be aligned at an angle to the horizontal, for example to accommodate a roof slope in the case of gable walls. In this case, the enveloping form must be designed accordingly.
Intermediate spaces 23 are formed between the braces 21, 22, into which a foaming filling material is filled in the course of the manufacture of the wall.
FIG. 2 a shows a detail of an enveloping form 3. Such an enveloping form 3 delimits an intermediate space 23 in a direction transverse to the wall plane. The enveloping form 3 comprises an outer shell 31, which covers the intermediate space 23 on a wall outer side 11, and an inner shell 32, which covers the intermediate space 23 on a wall inner side 12 (FIGS. 2 b and 2 c ). The outer cover 31 is connected to the inner cover 32 by a plurality of connecting threads 33. When the intermediate space 23 is filled with filling material, the filling material creates an 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, so that bulges are avoided. In addition, the pressing filling material and the pulling connecting threads—analogous to reinforced concrete—can create an increased bending stiffness in the wall.
The wall should be constructed in such a way that the filling material provides an essential part of the stability. The base frame can be so small that the required load-bearing capacity of the wall is not provided solely by the frame. The frame can therefore be constructed much more cheaply than, for example, a wall that is produced by classic carpentry using a wooden frame.
In order to provide the load-bearing capacity of the wall mainly through the filling material, the filling material is to be introduced into the intermediate space in such a way that a high pressure of at least 1.2 bar (overpressure) is created in the intermediate space during foaming. In particular, the filling material permanently generates an especially considerable pressure on the outer shell and on the inner shell of at least 1.2 bar overpressure, even in the cured state. In order to favour this, a number of further features are advantageous:
During filling, the amount of filling material is of great importance, as it is decisive for the generation of the advantageous minimum pressure during curing. Thus, it is advantageous for stability if a quantity of filling material is filled as precise as possible into the intermediate space. The density of filling material in the intermediate space is used as the target parameter, which can vary for different applications and materials. For example, if a density of 50 kg/m3 (cubic metre) is required to form a solid wall. From this, taking into account the volume of the intermediate space, the exact amount of filling material to be filled into the intermediate space can be calculated. Now the filling is done with exactly the calculated amount of filling material. The optimum pressure of the filling material, in particular at least 1.2 bar during curing, is then automatically set.
The large number of connecting threads per unit area can be seen in FIG. 2 , which favours the most even possible shape of the surface on the finished wall and enables a high compressive strength of the enveloping 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 metre. The connecting threads are in each case distributed over the length X and the width y, in particular equally.
A 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 to each other of max. 10 mm.
The intermediate spaces are comparatively small. This is the only way to achieve uniformly high pressures in the filling material, dimensional stability and sufficiently low reaction temperatures. The side length of the intermediate space, i.e. the length (in x-direction) of an intermediate space 23, and the width (in y-direction) of an intermediate space 23 is max. 1.5 m, preferably max. 1.2 m.
Such enveloping forms 3 can be prefabricated. For assembly, the enveloping form 3 is to be passed partially through the intermediate space 23 from one side. Therefore, each enveloping form is only used to delimit a single intermediate space 23.
FIG. 3 shows the steps in the manufacture of the wall in cross-section. On the outside of the wall 11 and on the inside of the wall 12, the braces 21, 22 are each provided with a double-sided adhesive tape 57 (FIG. 3 a ). Using the adhesive tape 57, the outer shell 31 is attached to the outside of the brace 21, 22 and the inner shell 32 is attached to the inside of the brace 21, 22 (FIG. 3 b and 3 c ). As an alternative to the adhesive tapes, other, in particular elastic or pasty, adhesive and/or sealing media can also be used.
A further enveloping form 3 b is now attached to the braces to which an enveloping form is already attached. If there is still enough adhesive tape left, the other enveloping form can also be attached with this adhesive tape. Otherwise, a further second double-sided adhesive tape 57 b is applied to the first enveloping form 3 in the area of the braces, by means of which the further enveloping form 3 b is fixed to the braces. For permanent fixing, a circumferential fastening fitting 58 is applied to the enveloping forms in the area of the braces, which in particular is fastened to the braces separately, i.e. in addition to the adhesive tape. This can be done by a screw connection 59 to the braces (FIG. 3 d ). Even if the adhesive strength decreases due to ageing, a permanent fixation of the enveloping form to the braces is thus ensured. Staples or nails can also be used as fastening fittings for the enveloping form.
However, this overlapping arrangement of the enveloping forms in the area of the braces is not necessary. The enveloping forms can also be attached next to each other on a common brace, provided there is sufficient space therefore. Then two adjacent enveloping forms can also be attached to the common brace with a shared adhesive tape or with two separate adhesive tapes.
Then the space 3 is filled with the foaming filling material 4 (FIG. 3 e ).
FIG. 6 shows a modification of the enveloping form 3 according to FIG. 2 a . The enveloping form is designed to delimit a plurality of intermediate spaces. For example, the outer shell 31 is designed integrated for several intermediate spaces. Several separate inner shells 32 are formed to delimit only one intermediate space at a time. Thus, passages 34 are provided between the individual inner shells through which the braces 22, in particular the cross braces, can be passed between two inner shells to reach their destination between the connecting threads 33. The enveloping form 3 as well as the base frame 2 can be widely pre-assembled.
The inner shell and the outer shell are then attached to the braces as previously described.
FIG. 7 shows a further modification of the enveloping form 3 according to FIG. 2 a . The enveloping form is designed to delimit a plurality of intermediate spaces. Thus, the outer shell 31 and the inner shell are designed to be integrated for several intermediate spaces. There are insertion channels 35 for braces, in particular the cross braces 22, which can be passed through between connecting threads. After passing through, the passed-through braces 22 can be connected to another brace 21, in particular the vertical brace 21. In this embodiment, too, the enveloping form 3 and the base frame 2 can be widely pre-assembled. In the case of the basic frame, the vertical brace 21 must be subsequently mounted on the horizontal brace 22.
The inner cover and the outer cover are then attached to the braces as previously described.
FIG. 4 a shows the base frame 2 in an embodiment of a bottom wall. The base frame 2 has first and second braces 21, 22 which are aligned in different directions and form intermediate spaces 23 between them. The intermediate spaces 23 can be further substructured by means of intermediate braces 24, as FIG. 4 b shows.
FIG. 4 b shows a section of a planking 55 which covers the intermediate spaces 23 during the manufacturing process of the bottom wall. The planking 55 can also be used in the design according to FIG. 4 a (without intermediate braces 24).
FIG. 5 shows the further steps for producing a bottom wall 1B on an uneven ground 91.
A foil 52 is laid on the ground 91. Several ground anchors 51 are inserted into the ground (FIG. 5 a ). The ground anchors 51 are designed to apply a tensile force to the ground 91. When the ground anchors 51 penetrate the foil 52, the foil 52 must be sealed at the ground anchors 51.
Such a ground anchors 51 may comprise a threaded rod fixed to the ground.
A grounding fitting 53 is attached to each tie rod 51 by means of a grounding fixing 54 (FIG. 5 b ). The grounding fitting can be an angle fitting. The grounding fixing 54 may, for example, comprise a nut that is attached to the threaded rod. Individual braces 21, 22 of the base frame 2 from FIG. 4 are attached to the grounding fixing 54.
Intermediate spaces 23 are now formed between the braces 21, 22, which are subsequently filled with foaming filler material. Excess foil can be cut off (FIG. 5 c ).
Now the filling process is started (FIG. 5 d ). First, a first quantity of foaming filling material 41 is introduced into the intermediate space 23. The first amount is placed in edge areas of the intermediate space 23, especially in corner areas at the braces 21, 22. Areas of the grounding fixing and the fittings are also enclosed by filling material. Due to the small amount of filler material in the first filling, the individual intermediate spaces are sealed against each other and the frame undersides are sealed against the foil. The small amount of filling material prevents the base frame from being lifted by the foam pressure. The first amount of filling material 41 then hardens for a period of a few minutes.
A second amount of filling material is then introduced into the intermediate space 23 (FIG. 5 e ). In the area of the intermediate spaces, the ground 91 is covered with a thin layer of filling material over the entire surface. The filling material also flows into gaps between or under the braces that occur during the pressureless curing of the previous filling. These are thus closed and a good bond with the frame material is ensured. The intermediate space 23 is not completely filled. The second amount of filling material 42 then cures for a few minutes.
The above process can now be repeated as often as desired (FIG. 5 f ) until the filler material has reached approximately a predetermined average distance D from the upper edge O of the braces, here for example 4 cm. For example, a third amount of filler material 43 is applied to the second amount of filler material 42 and then cures for a few minutes. If parts of the cured filler material protrude above the braces, these parts can simply be cut off and placed in the space 23; these are then enclosed by the next amount of filler material.
Now the intermediate space 23 is covered at the top with a planking 55. The planking 55 has holes 56 of about 10 mm diameter each at regular intervals of about 40-80 cm.
Small final quantities of filler material 44 are now introduced through these holes 56 (FIG. 5 h ). This quantity now foams up and fills the intermediate space 23 completely, at least over a substantial part of the surface, up to the planking 55 at the top (FIG. 5 i ). It is important that the final quantity of 44 added is not too large, as otherwise the pressure from below against the planking 55 may become too great and bulges may occur.

LIST OF REFERENCE NUMERALS

1 wall
11 wall outer side
12 wall inner side
2 base frame
21 first brace/vertical brace
22 second brace/horizontal brace
23 intermediate space
24 intermediate brace
3 enveloping form
31 outer shell
32 inner shell
33 connecting thread
34 passage
35 insertion channel
4 filling material
41 first filling quantity of filling material
42 second filling quantity of filling material
43 third filling quantity of filling material
44 final filling quantity of filling material
51 ground anchors
52 foil
53 grounding fitting
54 grounding fixing
55 planking
56 hole
57 double-sided adhesive tape
58 fastening fitting
59 wood screw
D distance
O upper edge of braces
91 ground
100 building

Claims

1. Building wall,

in particular floor wall, roof wall or side wall,

with a base frame comprising a plurality of braces,

wherein the base frame forms an intermediate space between the braces,

wherein the intermediate space is filled by a foamed filling material.

2. Building wall according to claim 1,

characterised

in that the base frame is dimensioned in such a way that a required load-bearing capacity of the building wall is not provided by the base frame.

3. Building wall according to claim 1,

characterised in

that the filled intermediate space, in particular next to the braces, is delimited by a, in particular textile, enveloping form.

4. Building wall according to claim 3,

characterized

in that the enveloping form comprises an outer shell delimiting the intermediate space on a wall outer side, and

that the enveloping form comprises an inner shell delimiting the intermediate space on a wall inner side.

5. Building wall according to claim 4,

characterised in

that the outer shell and the inner shell are connected to one another by at least one connecting thread, in particular a plurality of connecting threads,

in particular wherein the connecting thread bridges the intermediate space.

6. (canceled)

7. (canceled)

8. Building wall according to claim 1,

characterised

in that the filling material is placed under an internal pressure of at least 1.2 bar after curing and/or during foaming and curing, and/or that the filling material exerts a pressure load of at least 1.2 bar on the inner shell and/or on the outer shell.

9. (canceled)

10. Building wall according to claim 1,

characterised in,

that the enveloping form is attached to a brace of the base frame,

in particular that the outer shell is attached to an outer side of a brace of the base frame and/or that the inner shell is attached to an inner side of a brace of the base frame.

11. Building wall according to claim 1,

characterised in

that two adjacent intermediate spaces within a wall are each delimited by two separate outer shells and/or each delimited by two separate inner shells,

in particular in that two adjacent intermediate spaces within a wall are in each case delimited by two separate enveloping forms.

12. Building wall according to claim 1,

characterised

in that a common brace is arranged between the two adjacent intermediate spaces, the two separate outer shells and/or inner shells being attached to the common brace.

13. Building wall according to claim 1,

characterized in

that the enveloping form has a first shell which is designed to delimit a plurality of intermediate spaces,

and in that the enveloping form has at least two separate second shells, which are each designed to delimit an intermediate space,

the two separate second shells being connected to the first shell via connecting threads, a passage being provided between the two second shells for a brace to pass through.

14. Building wall according to claim 1,

characterized in

and in that the enveloping form has a second shell which is designed to delimit a plurality of intermediate spaces,

the second shell being connected to the first shell via the connecting threads, an insertion channel for passing a brace being provided between the first shell, the second shell and the connecting threads.

15. Building wall according to claim 1,

characterised

in that the building wall has a plurality of intermediate spaces between one another, each of which is separated from the other by a brace.

16. Building wall according to claim 1,

characterised in

that the wall is a side wall or a roof wall and in that the base frame has at least three horizontal braces arranged one above the other so that a plurality of intermediate spaces arranged one above the other are formed.

17. Building wall according to claim 1,

characterised

in that the wall is a floor wall which is arranged on a ground, the intermediate space being limited on the floor side at least indirectly by the ground.

18. (canceled)

19. (canceled)

20. A building comprising a plurality of walls according to claim 1.

21. Method of manufacturing a wall according to claim 1, comprising the following method steps:

providing the base frame,

fixing the enveloping form to the base frame,

filling the intermediate space with at least a quantity of filling material, the filling material foaming up after filling.

22. Method according to claim 21,

wherein the enveloping form is prefabricated and/or

wherein the inner shell of the enveloping form is connected to the outer shell of the enveloping form by the connecting threads before the enveloping form is attached to the base frame.

23. Method according to claim 21,

wherein the enveloping form is passed at least partially through the intermediate space, and

wherein an outer shell of the enveloping form is fastened to a brace on the outside of the wall, and in that an inner shell of the enveloping form is fastened to the brace on the inside of the wall.

24. Method according to claim 21,

characterised in

that the filling material has, when filled, a viscosity of at most 1000 mPa*s, in particular and in that the inner shell and the outer shell lie sealingly against the base frame when filled.

25. (canceled)

26. Method of manufacturing a wall according to claim 21,

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.