DE102019116129A1 - Flat sandwich construction element for buildings - Google Patents

Abstract

The invention relates to a flat sandwich construction element (2) for buildings, comprising at least one cellulose honeycomb body panel (4) which is sandwiched between two cover layers (3) of the sandwich construction element (2), the sandwich construction element (2) having at least one edge-side groove ( 5), characterized in that a rear section (7) is formed between the edge-side groove (5) and the cover layers (3) flanking the groove (5).

Description

The invention relates to a flat sandwich component for buildings according to the preamble of claim 1, comprising at least one cellulose honeycomb panel, which is sandwiched between two cover layers of the sandwich component, the sandwich component having at least one edge-side groove.

The invention also relates to a wall or ceiling system for buildings according to claim 13 and a building with a wall or ceiling system according to the invention according to claim 20.

Wall elements comprising a cellulose honeycomb body panel, also called honeycomb composite support parts, are known from practice. From the EP 2 933 393 A1 a flat sandwich component forming the preamble of claim 1 is known, which can be connected as part of a ceiling system by means of a tongue and groove connection to further sandwich components or solid structures such as floors, walls or ceilings of a building.

The known flat sandwich construction elements and in particular the sandwich construction element known from the above-mentioned laid-open specification, however, have the disadvantage that those sections of the cover layers which protrude beyond the honeycomb body panel take an exposed position and can break off even with slight mechanical action. This leads to the need for reworking or even the replacement of the entire sandwich component. This effect is sometimes reinforced by the fact that the cover layers are made of a brittle and break-friendly material.

Starting from the aforementioned prior art, the invention is therefore based on the object of specifying an advantageous flat sandwich construction element for buildings which solves the aforementioned problem, in particular in that the aforementioned sections of the cover layers can no longer break off in the known, easy manner.

This object is achieved with regard to the sandwich component with the features of claim 1, with regard to the wall or ceiling system with the features of claim 13 and with regard to the building with the features of claim 20.

Advantageous further developments of the invention are specified in the subclaims. All combinations of at least two of the features disclosed in the description, the claims and / or the figures fall within the scope of the invention.

The invention is based on the idea of mechanically stabilizing and backing up the previously exposed or protruding sections of the cover layers in order to achieve improved edge stability of the sandwich component. The cover layers, which are mostly made of a brittle and fragile material, can thus be stabilized in such a way that an impact of the sandwich component does not lead to an exposed section of the cover layer breaking off when the sandwich component is handled normally. A sandwich component is therefore specified with an edge stability that is increased compared to the prior art.

More precisely, the problem of the prior art is solved by a flat sandwich construction element for buildings, comprising at least one cellulose honeycomb body panel, which is sandwiched between two cover layers of the sandwich construction element, the sandwich construction element having at least one edge-side groove, and wherein between the edge-side groove and the cover layers flanking the groove are each formed with a rear section.

According to a preferred embodiment of the sandwich construction element according to the invention, the rear section is formed from the cellulose honeycomb panel, preferably formed in one piece with it. Such an embodiment advantageously reduces the number of individual elements required to form the sandwich component and increases the stability of the sandwich component. The two preferably parallel groove walls of the edge-side groove are thus formed by the honeycomb plate. The groove base of the edge-side groove can also be formed by the cellulose honeycomb body panel.

According to a further preferred embodiment of the sandwich construction element according to the invention, it comprises a single cellulose honeycomb body panel or at least two cellulose honeycomb body panels, each of which is assigned to a cover layer and which are arranged on a central plank element. In the first variant, the groove can, for example, be milled into the single cellulose honeycomb body panel or introduced by means of another suitable method. In the second variant, the groove can be formed in that the central plank element is made shorter than the honeycomb body panels, so that this difference in length leads to the formation of the groove. In the second variant, the groove base can be formed, for example, by the middle plank element, while the Groove walls of the edge-side groove can be formed by the honeycomb panels themselves.

According to a further preferred embodiment of the flat sandwich construction element according to the invention, the cover layers are glued to the at least one cellulose honeycomb panel, the adhesive being designed such that it engages at least in sections into the honeycomb structure of the cellulose honeycomb panel, which is open at least in sections in the direction of the cover layer the adhesive is preferably a foaming adhesive. Such an arrangement leads to an increased stability of the sandwich component using such an engaging adhesive.

According to a further preferred embodiment of the sandwich construction element according to the invention, it is conceivable that the cellulose honeycomb body panel has mineralized honeycombs, which preferably have a wave height of 5 mm to 10 mm, even more preferably 6 mm to 8 mm. The individual honeycombs of the honeycomb body panel can thus be coated with an impregnation layer, for example based on cement. By means of a combination with the specified dimensions, a honeycomb plate can thus be formed which has an optimal ratio between weight and stability.

According to a further preferred embodiment of the sandwich construction element according to the invention, the cellulose honeycomb body panel comprises, at least in sections, a functional filling which comprises quartz sand and / or silicate. Such a functional filling is particularly advantageous if the sandwich component is to have further functions and / or improved properties. A functional filling comprising quartz sand leads, for example, to considerably improved noise insulation and a functional filling comprising silicate leads in particular to improved thermal insulation. However, it is also conceivable that no sand or gravel is used at all in order to ensure improved fire protection.

According to a further preferred embodiment of the sandwich component according to the invention, the groove has a depth of 5 mm to 400 mm, preferably 10 mm to 15 mm and / or a width of 5 mm to 20 mm, preferably 10 mm to 15 mm.

Alternatively or additionally, according to a further preferred embodiment, the sandwich construction element according to the invention is conceivable that the rear section has a width of 15mm to 30mm, preferably 20mm to 25mm and / or the width of the rear section is at least as large as the width of the adjacent cover layer. Here, width means the extension in the normal direction of the cover layer. Although the specific dimension-related configurations of the rear section are dependent on the specific application of the sandwich component, a rear construction of the cover layer which is at least as large as the width of the cover layer itself is of particular advantage. This leads to a sandwich component with a thickness compared to the prior art considerably stiffer edge section.

According to a further preferred embodiment of the sandwich component according to the invention, at least one of the cover layers, preferably all cover layers, is designed as a concrete slab, gypsum board, wood multilayer board, magnesium oxide board or chipboard, in particular coarse chipboard.

According to a further preferred embodiment of the sandwich construction element according to the invention, a closing element for connecting the sandwich construction element to a floor, a wall or a ceiling is arranged displaceably in the depth direction of the groove in at least one groove. Previously known sandwich construction elements can only be connected to an adjacent fixed structure (floor, wall or ceiling) by means of a complex auxiliary construction. A closing element which can be pulled out of the sandwich component and which is already part of the sandwich component is advantageous. An additional connection structure is no longer necessary. It can be pulled out of the groove of the sandwich construction element as far as required for connection to the fixed structure. The sandwich component can therefore be connected in a simple manner to an adjacent fixed structure, regardless of the specific distance between the sandwich component and the fixed structure.

According to a further preferred embodiment of the sandwich construction element according to the invention, the closing element has a T-shaped cross section, the cover line section of which is provided with at least one groove or at least one joint tape and / or the trunk section of which is designed to engage the groove. The top coat section can for example run parallel to the edge of the sandwich component and correspond to the width of the sandwich component. The trunk section engages in the groove and thus serves to stabilize the connection between the sandwich component and the adjacent fixed structure. It is conceivable that the trunk section has a length of 10 mm to 100 mm, preferably 50 mm to 75 mm.

According to a further preferred embodiment of the sandwich component according to the In accordance with the invention, the pull-out sections of the closing element protruding beyond the cover layers are each provided with a honeycomb panel comprising a cover layer. A pull-out section is that area of the closing element between the edge-side end of the cover layer and the cover layer section. These honeycomb panels can be cut to size depending on the installation situation and bridge the distance between the edge-side end of the cover layers and the solid structure. If the cover layer section corresponds to the width of the sandwich construction element, the honeycomb panels bridge the distance between the cover layers and the cover layer section.

According to the invention, a wall or ceiling system for buildings is also proposed, comprising at least one sandwich component according to at least one of the preceding claims, at least one outer panel element which in the assembled state covers the sandwich component at least in sections and forms a honeycomb composite panel together with the sandwich component, and at least one on the edge Groove of the sandwich component received spring element. This spring element is used to connect two adjacent sandwich components and serves to stabilize the wall or ceiling. The dimensions of the spring element can be selected so that they correspond to the dimensions of the corresponding grooves in order to form a press fit. The wall or ceiling system itself forms a wall or ceiling and can be connected to a solid structure in a known manner. The state of assembly means that the wall or ceiling has been erected in accordance with its function and its elements are firmly connected to one another. A wall or a ceiling corresponding to the wall or ceiling system according to the invention is about 10 to 12 times lighter than a comparable wall or ceiling made of concrete and about 3 times lighter than a comparable wall or ceiling made of wood.

According to a further preferred embodiment of the wall or ceiling system according to the invention, the spring element has an edge-side guide recess which extends at least in sections over the length of the spring element. This guide recess is used in an advantageous manner, for example, to accommodate lines, in particular water, electricity and / or data lines. No separate shafts need to be provided in the sandwich component or introduced into it for such lines.

It is also conceivable that the wall or ceiling comprising sandwich construction elements has a circumferential circumferential groove which is arranged on the periphery in the sandwich construction elements arranged on the edge and is preferably between 1.5 and 4 cm wide and / or deep, more preferably 3 cm wide and / or deep . The circumferential groove can for example be formed at least in sections from the above-mentioned grooves or it can also be a separate groove.

According to a further preferred embodiment of the wall or ceiling system according to the invention, an intermediate space construction, preferably comprising slats, is arranged in an intermediate space between the at least one sandwich component and the at least one outer panel element. The intermediate space construction that can be formed from slats can be formed from intersecting slats.

According to a further preferred embodiment of the wall or ceiling system according to the invention, insulating material is arranged in the intermediate space and / or the intermediate space and / or the insulating material are designed to guide a line. The insulation material prevents structure-borne sound from being transmitted and serves to protect against noise.

It is also conceivable that the elements forming the wall or the ceiling in the wall or ceiling system for buildings are connected to one another exclusively by means of plugging and / or screws. As a result, the wall or the ceiling can be dismantled without being destroyed and their individual parts can be reused.

According to a further preferred embodiment of the wall or ceiling system according to the invention, it is free from sand or gravel in order to be flame retardant.

Furthermore, a building with a wall or ceiling system according to one of Claims 13 to 19 is proposed.

The building essentially has the advantages of the features disclosed with regard to the sandwich construction element and the wall or ceiling system, to which reference is hereby made.

Further advantages, features and details of the invention emerge from the following description of preferred exemplary embodiments and with reference to the drawings.

• 1a bis 1c: unterschiedliche Ausgestaltungsvarianten eines Sandwichbauelements für Gebäude,
• 2: ein Sandwichbauelement in einer weiteren Ausgestaltung,
• 3: eine Seitenansicht auf ein Wand- oder Deckensystem für Gebäude ohne Außenplattenelement,
• 4: einen Schnitt durch das Wand- oder Deckensystem für Gebäude entlang einer Linie IV - IV gemäß 3,
• 5: einen weiteren Schnitt durch das Wand- oder Deckensystem für Gebäude entlang einer Linie V - V gemäß 3, und
• 6: eine perspektivische Seitenansicht auf ein Wand- oder Deckensystem für Gebäude mit Außenplattenelementen.

This shows in:

• 1a to 1c : different design variants of a sandwich component for buildings,
• 2 : a sandwich component in a further embodiment,
• 3 : a side view of a wall or ceiling system for buildings without an outer panel element,
• 4th : a section through the wall or ceiling system for buildings along a line IV - IV according to 3 ,
• 5 : another section through the wall or ceiling system for buildings along a line V - V according to FIG 3 , and
• 6th : a perspective side view of a wall or ceiling system for buildings with outer panel elements.

In the figures, the same elements and elements with the same function are identified by the same reference symbols.

The dimensions partially indicated in the figures are not intended to restrict the invention.

In the 1a , 1b and 1c is an edge section of a sandwich component 2 shown comprising two outer cover layers 3 , at least one between two top layers 3 of the sandwich component 2 arranged cellulose honeycomb panel 4th which is sandwiched there. The flat sandwich component has the edge 2 at least one groove 5 on. Between the edge-side groove 5 and the groove 5 flanking cover layers 3 is each a rear section 7th educated. The rear section 7th closes at the edge with the respective top layer 3 from.

The rear triangle sections 7th , which extends in the longitudinal direction of the sandwich component 2 between a groove base 8th and extend their edge-side end are integral with the respective cellulose honeycomb panel 4th educated.

The groove 5 can be a depth T from 5mm to 400mm, preferably from 10mm to 15mm. In addition, the groove 5 a width B _N from 5mm to 20mm, preferably from 10mm to 15mm. The rear section 7th can be a width B _H from 15mm to 30mm, preferably from 20mm to 25mm. At least, however, is the width B _H as big as a width B _D the adjacent top layer 3 .

The ones in the 1a to 1c cellulose honeycomb panels shown 4th have mineralized honeycombs, which preferably have a wave height of 5 mm to 10 mm, even more preferably 6 mm to 8 mm. Functional fillings of the cellulose honeycomb panels are not shown in the figures 4th which may include quartz sand and / or silicate.

At least one of the top layers 3 , preferably all top layers 3 of a sandwich component 2 is / are designed as a concrete board, gypsum board, wood multilayer board, magnesium oxide board or chipboard, in particular chipboard. The top layers 3 are with the corresponding cellulose honeycomb panel attached to it 4th glued, wherein the adhesive is designed such that it is at least partially in the at least partially in the direction of the cover layer 3 open honeycomb structure of the cellulose honeycomb panel 4th intervenes. An adhesive that is a foaming adhesive has been found to be particularly advantageous. For example, an adhesive based on polyurethane is suitable for the permanent and stable connection of the cover layer to the corresponding cellulose honeycomb panel 4th . The adhesive is between the top layer 3 and the adjacent honeycomb panel 4th arranged. Also honeycomb panels 4th can be glued together in this way.

While the sandwich element 2 according to 1a a single cellulose honeycomb panel 4th comprises, the embodiment according to 1b two cellulose honeycomb panels 4th on, which in the longitudinal direction of the sandwich component 2 attached to each other, preferably glued together. In another embodiment, which is shown in 1c shown are the two cellulose honeycomb panels 4th are not directly glued together, but are on a middle plank element 12 arranged. This middle plank element 12 can the sandwich component 2 give further stability. The two cellulose honeycomb panels 4th can for example with the middle plank element 12 be glued.

The ones in the 1a and 1b shown grooves 5 can in the sandwich element 2 or the cellulose honeycomb panel 4th be milled. In contrast, the in 1c shown groove 5 in that the middle plank element 12 is shorter than the adjacent cellulose honeycomb panels 4th . In each of the three exemplary embodiments according to FIGS 1a to 1c however, the groove walls 10 of two preferably parallel groove walls 10 the honeycomb panel 4th educated. Also the bottom of the groove 8th is in the 1a and 1b from the cellulose honeycomb panel 4th educated. Only in 1c becomes the groove base 8th from the edge-side end of the middle plank element 12 educated.

2 now shows a further development of the in 1c sandwich component shown 2 , which is why only the differences will be discussed below.

Compared to the representation in 1c is the middle plank element 12 in the longitudinal direction of the Sandwich component 2 made considerably shorter, so that a long groove 5 is trained. In this groove 5 is a finishing element 14th for connecting the sandwich component 2 with a floor, a wall or a ceiling in the depth direction of the groove 5 arranged displaceably. In the in 2 The embodiment shown is the sandwich component 2 on a solid structure 16 arranged.

The final element 14th includes a topcoat section 18th , the width of which is the width of the sandwich component 2 in the normal direction of the top layer 3 corresponds. The top coat section 18th also has two top line grooves 34 for a fixed and easy connection with the fixed structure 16 on. A trunk section 20th of the closing element 14th reaches into the groove as a leader 5 a.

For fastening the sandwich component 2 on the solid structure 16 becomes the final element 14th out of the groove 5 pulled out until the top line section 18th in contact with the solid structure 16 comes. This creates pull-out sections of the terminating element 14th formed or exposed, which between the edge-side end 36 the top layers 3 and the topcoat section 18th are arranged. These extract sections 22nd are each with a top layer 3 comprehensive honeycomb panel 24 disguisable. The honeycomb panel 24 also comprises a cellulose honeycomb body corresponding to the adjacent cellulose honeycomb body panel 4th .

3 shows a side view of a wall or ceiling system 1 , comprising several flat sandwich construction elements 2 as already described above. The wall or ceiling system 1 is as a partition 6th pictured. Each of the sandwich panels 2 has a groove on each of its edges 5 on. The grooves 5 of a sandwich component 2 can have different depths T exhibit. The wall or ceiling system 1 is on the bottom as well as on its left side in the plane of the drawing of an edge element 26th limited. The edge elements 26th engage in the corresponding grooves 5 the sandwich construction elements 2 a. Between neighboring sandwich construction elements 2 is in the corresponding grooves on the edge 5 a spring element 28 recorded.

4th shows a section along the line IV - IV 3 . In this top view, the edge element is on the edge 26th to recognize its width the width of the sandwich component 2 corresponds. With its trunk section 20th grips the edge element 26th into the groove 5 a. The two neighboring sandwich elements 2 are by means of a spring element 28 connected to one another, the spring element 28 in both opposing grooves 5 of the neighboring sandwich construction elements 2 intervenes.

5 shows a section along the line V - V according to FIG 3 . It can be clearly seen here that the horizontally arranged spring element 28 an edge guide recess 30th which extends at least in sections over the length of the spring element 28 extends. The guide recess is only an example 30th a power cord 32 shown led.

The sandwich component described above 2 in an arrangement in a wall or ceiling system 1 can be used, for example, in a building (not shown). Part of this building can for example be the solid structure 16 be.

In 6th is the wall or ceiling system according to the invention 1 for buildings shown in a partially exploded view. That as a partition 6th Wall or ceiling system shown 1 includes, as already with regard to 3 described several sandwich construction elements 2 , which with each other by means of spring elements serving as connecting plates or strips 28 are reversibly connected via the tongue and groove connector system described. The individual sandwich elements 2 are therefore only hidden from each other and not connected to each other even after the wall or ceiling has been completed. The partition 6th has a peripheral side in the sandwich components arranged on the edge side 2 arranged circumferential groove 42 on, in which ceiling-side a ceiling-side edge element 26d , a bottom edge element on the bottom 26b and / or a connection wall-side edge element on the connection wall side 26w intervenes / intervene. The edge elements 26th , 26b , 26d and 26w can be designed as cross-sectionally T-shaped strips. The circumferential groove 42 can be a separate groove or from the grooves 5 be educated.

Three outer panel elements shown 38 cover the view of the sandwich construction elements in the assembled state 2 at least in sections. The outer panel elements 38 can for example be magnesium oxide plates and / or have a thickness of 15mm. One or more sandwich elements 2 form with one or more outer panel elements 38 one or more honeycomb composite panels. Between the outer panel elements 38 and the sandwich elements 2 is a space 48 formed, the dimensions of which are essentially provided by a slat arranged therein and preferably 46 comprehensive gap construction 44 is defined. The slats 46 can be wooden slats or comprise wood. A first row of parallel and vertical slats 46 crosses at right angles with a second row of parallel and horizontal slats 46 . The vertical slats 46 are immediately on the Sandwich construction elements 2 and the horizontally running slats 46 are directly on the outer plate elements 38 arranged. However, it's also just a series of slats 46 or more than two rows conceivable. In addition, the crossing angles of adjacent rows of battens 46 not limited to 90 ° but can also assume other values. Alternatively, it can be through the slats 46 formed battens between sandwich panels 2 and outer panel members 38 also omitted so that the outer plate elements 38 directly on the sandwich construction elements 2 to be ordered.

The outer panel elements 38 can with the sandwich elements 2 are connected by appropriate connecting means, for example screws, whereby the otherwise only plugged sandwich components are thereby also connected 2 be fixed to each other and the entire wall / ceiling receives its stability. The connecting means that are in the 6th are not shown, designed so that they can be removed again. This ensures that the cover wall can simply be dismantled again and the sandwich construction elements and / or the outer panel elements can be reused, in particular reused for a different ceiling and / or wall construction.

In the space 48 insulation material, not shown, can be arranged so that a line 32 in the space 48 is feasible.

Features disclosed in accordance with the device should also apply and be claimable as disclosed in accordance with the method. Likewise, features disclosed in accordance with the method should also apply and be claimable as disclosed in accordance with the device.

List of reference symbols

1

Wall or ceiling system

2

Sandwich construction element

3

Top layer

4th

Cellulose honeycomb panel

5

Groove

6th

partition wall

7th

Rear section

8th

Groove base

10

Groove wall

12

Middle plank element

14th

Finishing element

16

solid structure

18th

Topcoat section

20th

Trunk section

22nd

Pull-out section

24

Finishing element

26th

Edge element

26b

bottom edge element

26d

ceiling-side edge element

26w

edge element on the connection wall side

28

Spring element

30th

Guide recess

32

Power cord

34

Top line groove

36

Edge end of the top layer

38

Outer plate element

40

Honeycomb composite panel

42

Circumferential groove

44

Space construction

46

bar

48

Space

B _D

Width of the top layer

B _H

Width of the rear section

B _N

Width of the groove

T

Depth of the groove

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• EP 2933393 A1 [0003]

Claims (20)

Flat sandwich construction element (2) for buildings, comprising at least one cellulose honeycomb body panel (4), which is sandwiched between two cover layers (3) of the sandwich construction element (2), the sandwich construction element (2) having at least one edge-side groove (5), characterized in that a rear section (7) is formed between the edge-side groove (5) and the cover layers (3) flanking the groove (5). Flat sandwich component (2) according to Claim 1 , wherein the rear section (7) is formed from the cellulose honeycomb body panel (4), preferably formed in one piece with it. Flat sandwich construction element (2) according to one of the preceding claims, comprising a single cellulose honeycomb panel (4) or at least two cellulose honeycomb panels (4), each of which is assigned to a cover layer (3) and which is arranged on a central plank element (12) are. Flat sandwich construction element (2) according to one of the preceding claims, wherein the cover layers (3) are glued to the at least one cellulose honeycomb body panel (4), the adhesive being designed such that it at least partially into the at least partially towards the top layer (3 ) the open honeycomb structure of the cellulose honeycomb panel (4) engages, the adhesive preferably being a foaming adhesive. Flat sandwich construction element (2) according to one of the preceding claims, wherein the cellulose honeycomb body panel (4) has mineralized honeycombs, which preferably have a wave height of 5mm to 10mm, even more preferably of 6mm to 8mm. Flat sandwich construction element (2) according to one of the preceding claims, wherein the cellulose honeycomb body panel (4) comprises, at least in sections, a functional filling which comprises quartz sand and / or silicate. Flat sandwich construction element (2) according to one of the preceding claims, wherein the groove (5) has a depth (T) of 5mm to 400mm, preferably 10mm to 15mm and / or a width (BN) of 5mm to 20mm, preferably 10mm to 15mm having. Flat sandwich construction element (2) according to one of the preceding claims, wherein the rear section (7) has a width (BH) of 15mm to 30mm, preferably of 20mm to 25mm and / or the width (BH) is at least as large as the width (BD ) the adjacent top layer (3). Flat sandwich construction element (2) according to one of the preceding claims, wherein at least one of the cover layers (3), preferably all cover layers (3), is / are designed as a concrete slab, gypsum board, wood multilayer board, magnesium oxide board or chipboard, in particular chipboard. Flat sandwich component (2) according to one of the preceding claims, wherein in at least one groove (5) a closing element (14) for connecting the sandwich component (2) to a floor, a wall or a ceiling is arranged displaceably in the depth direction of the groove (5) . Flat sandwich component (2) according to Claim 10 , wherein the closing element (14) has a T-shaped cross section, the cover line section (18) of which is provided with at least one groove or at least one joint tape and / or the trunk section (20) of which is designed to engage in the groove (5). Flat sandwich component (2) according to Claim 10 or 11 The extension sections (22) of the closing element (14) projecting beyond the cover layers (3) are each provided with a honeycomb panel (24) comprising a cover layer (3). Wall or ceiling system (1) for buildings, comprising at least one sandwich construction element (2) according to at least one of the preceding claims, at least one outer panel element (38) which in the assembled state covers the sandwich construction element (2) at least in sections and together with the sandwich construction element (2) a honeycomb composite panel (40) and at least one spring element (28) received in the edge-side groove (5) of the sandwich component (2). Wall or ceiling system (1) for buildings according to Claim 13 , wherein the spring element (28) has an edge-side guide recess (30) which extends at least in sections over the length of the spring element (28). Wall or ceiling system (1) for buildings according to Claim 13 or 14th The wall or ceiling comprising sandwich construction elements (2) has a circumferential circumferential groove (42) which is arranged on the periphery of the sandwich construction elements (2) and is preferably between 1.5 and 4 cm wide and / or deep, more preferably 3 cm wide and / or is deep. Wall or ceiling system (1) for buildings according to one of the Claims 13 to 15th wherein an intermediate space construction (44), preferably comprising slats (46), is arranged in an intermediate space (48) between the at least one sandwich component (2) and the at least one outer plate element (38). Wall or ceiling system (1) for buildings according to Claim 16 , wherein in the intermediate space (48) insulating material is arranged and / or the intermediate space (48) and / or the insulating material are designed to guide a line (32). Wall or ceiling system (1) for buildings according to one of the Claims 13 to 17th , the elements (2) forming the wall or the ceiling being connected to one another exclusively by means of plugging and / or screws. Wall or ceiling system (1) for buildings according to one of the Claims 13 to 18th which is free from sand or gravel. Building with a wall or ceiling system (1) according to one of the Claims 13 to 19th .

Images