EP4310266A1

EP4310266A1 - Layered building board and a method for manufacturing thereof

Info

Publication number: EP4310266A1
Application number: EP22186596.7A
Authority: EP
Inventors: Bogdan Wera
Original assignee: Zrehouse Sp Z OO
Current assignee: Zrehouse Sp Z OO
Priority date: 2022-07-23
Filing date: 2022-07-23
Publication date: 2024-01-24

Abstract

A layered building board comprises a support structure, outer lining board/boards, inner lining board/boards, and a thermal-insulation material filling the space between the internal and outer lining board/boards, and mounting means, characterized in that between the inner lining board/boards (2) and the supporting structure (4) there are located spacer elements of a first type (3), and between the outer lining board/boards (6) and the supporting structure (4) there are located spacer elements of a second type (5), and the spacer elements of the first and the second types (3, 5) are made from a thermal-insulation material, and, moreover, in the space between the inner lining board/boards (2) and the outer lining board/boards (6) there are placed elements of internal installations, and the thermal-insulation material filling the empty spaces between the inner lining board/boards (2) and the outer lining board/boards (6) is building foam with closed pores (8). Also, the invention relates to a method for manufacturing the described layered building board.

Description

This invention relates to a layered building board having a supporting structure, one or more outer lining boards, one or more inner lining boards, and a thermal-insulation material filling the space between the outer lining and inner boards, and mounting means necessary for stable attachment of individual components of the layered building board. Also, the subject matter of the invention is a method for producing said layered building board.
In the construction industry, building boards are known to be prefabricated, suitably prepared building elements that may facilitate and/or accelerate the erecting process of final building constructions.
Construction building boards comprise suitable supporting structures of increased strength, like supporting frames made from profiles, making it possible to use such boards as primary and sole structure components of buildings' walls.
Layered building boards consist of at least a core in the form of an inner filling layer having thermal-insulation properties and two layers constituting an inner layer and an external layer.
For example, a technology of layered boards is known, the boards comprising a filling with a thermal-insulation foam or expanded polystyrene having, as the inner and outer layers, metal surfaces with anti-corrosive protection. More preferable, however, are techniques referring to traditional mason buildings, i.e., having cement-based boards on the outer side and gypsum boards on the inner side. Such boards have better thermal insulation properties, are more robust, stiffer, and more weather resistant.
From US Publication No US2007245640A1 , a support wall design is known that has frame-less, modular wall panels, each of which has spaced apart layers of a fiber reinforced cement sheet, separated with a core made from expanded high-density polyurethane foam bound to the inner surfaces of the separated layers. Also, each of the panels has a recessed channel on the vertical edges that creates, together with the recessed channel of an adjacent wall panel, a hollow opening extending between the upper surface and the lower surface of the adjoining wall panels. Also, a channel element is envisaged retaining the lower edge of the board, the element being possible to fasten to the support base of the building.
From DE1908610A1 , one knows a prefabricated wall panel in the form of hollow, wood-structure wallboard, with an external gypsum board lining, with a space between the lining boards. The space between the inner and outer panels is filled with rigid polyurethane foam to increase the strength of the building when using it and to provide better insulation.
From International Publication WO2013023117A1 , one knows an insulating board with a non-porous laminate and a rigid foam core covered or shielded with a reflective polymer or plastic lining. The insulating board provides a thermal barrier for transferring, convection, and radiating thermal energy. The insulating board comprises a coating that reflects the outside-originated and the internal thermal energy to maintain comfortable interior temperatures at minimal expenses and energy costs for heating up or cooling down.
The aim of the present invention is to provide an improved design of a prefabricated layered building board with appropriate strength and insulation parameters. The layered building board comprises internal installations and window and door openings that simplify the final building assembly process. Obtaining a uniform layered board constituting a ready-to-use construction component to be used for erecting a building's walls makes it possible to build in all weathers, this, in turn, making it possible to eliminate the dead winter season. Also, the invention aims to minimize the time needed for obtaining a uniform layered board as a ready-to-use construction component.
A particular aim of the invention is to provide improved thermal and acoustic insulation obtained using layered boards by eliminating thermal bridges between the outer and inner layers and the supporting structure. Also, the invention eliminates secondary losses of the insulating filling occurring due to making internal installations if they are created only after setting the building's walls.
The subject matter of the invention is a layered building board having a supporting structure, outer lining board/boards, inner lining board/boards, and a thermal-insulation material filling the space between the internal and outer lining board/boards, and mounting means, the board is characterized in that between the inner lining board/boards and the supporting structure there are located spacer elements of a first type, and between the outer lining board/boards and the supporting structure there are located spacer elements of a second type, and the spacer elements of the first type and the second type are made from thermal-insulation material, and, moreover, in the space between the inner lining board/boards and the outer lining board/boards there are placed elements of internal installations, and the thermal-insulation material filling the empty spaces between the inner lining board/boards and the outer lining board/boards is building foam with closed pores.
Preferably, the supporting structure comprises a supporting frame made from profiles and, optionally: supporting poles, reinforcing crossbars, and reinforcement elements.
Preferably, the building foam with closed pores is polyurethane foam, the outer lining board is a cement/nonwoven board, and the inner lining board is gypsum board.
Preferably, the elements of internal installations are elements of installations selected from a group of electrical installations, telecommunications installations, plumbing systems, heating installations, ventilation installations, and gas installations.
Preferably, the layered building board comprises mounting means selected from a group of mechanical mounting means and mounting adhesives.
Preferably, the layered building board comprises window and/or door openings.
Also, the subject matter of the invention is a method for manufacturing a layered building board, as described above, comprising a supporting structure, an outer lining board/boards, an inner lining board/boards, and a thermal-insulation material filling the space between the internal and outer lining board/boards, and mounting means, characterized in that at least one inner lining board is placed onto a leveled mounting surface, a supporting structure is provided onto which spacer elements of a first type, made from thermal-insulation material, are fastened on the side of the inner lining board, then so prepared supporting structure is positioned and attached horizontally onto at least one inner lining board with its side provided with the spacer elements of the first type, then spacer elements of a second type made from thermal-insulation material are mounted onto the supporting structure on the side of the outer lining boards, and then elements of internal installations are mounted in the internal space of the layered building board, and empty voids are filled with a thermal-insulation material of building foam with closed pores, and then, onto the supporting structure on the side of the spacer elements of the second type, at least one outer lining board is applied onto which, optionally, a demountable element is fastened that stiffens this outer lining board.
Preferably, the spacer elements of the first type and the second type are fastened to the supporting structure, the building foam with closed pores, as used, is polyurethane foam, a cement/nonwoven board is used as the outer lining board, and gypsum board is used as the inner lining board.
Preferably, the outer lining board and/or the inner lining board are mounted to the supporting structure using mechanical mounting means.
Preferably, in the layered building board, elements of internal building installations are mounted that are elements of installations selected from a group of electrical installation, telecommunications installation, plumbing system, heating installation, ventilation installation, and gas installation.
Preferably, in the layered building board, window and/or door openings are made.
Preferably, a supporting structure is provided with a length and/or width being a multiplicity of the length and/or the width of the inner lining board and the outer lining board.
The invention is illustrated in the drawings, in which:

Fig. 1 shows a general perspective view of the layered building board with individual layers exposed (not changing the building foam),
Fig. 2 shows a cross-section of the layered building board in a place where two opposite elements of the supporting frame are present, to which spacer elements of a first type and a second type are fastened,
Fig. 3 shows an exemplary view of a supporting structure with supporting poles and reinforcing crossbars,
Fig. 4 shows a plan view of the layered building board during the manufacturing process thereof in a step when the inner lining board is located below the supporting structure, then spacer elements of a first type (invisible), and spacer elements of a second type are deposited onto the supporting structure, but no building foam has been applied yet,
Fig. 5 shows a plan view of the layered board shown in Fig. 4 during the manufacturing process thereof, in a subsequent step, relative to Fig. 4, when empty spaces within the layered board, delimited by spacer elements of the first type (invisible) and the spacer elements of the second type, are fulfilled with a building foam,
Fig. 6 shows a side view of the layered building board, i.e., a view of its end surface that is transverse to the lining boards.

A layered building board having a supporting structure, one or more outer lining boards, one or more inner lining boards, and a thermal-insulation material filling the space between said outer and inner lining boards, and various mounting means, according to the invention, is characterized in that, subsequently, starting from the inner side of this layered board, i.e., from that side which will be the inner side of the building's wall, it comprises one or more inner lining boards 2, then, between the inner lining board or boards 2 and the supporting structure 4, longitudinal spacer elements 3 of a first type are seated and fastened to the supporting structure 4 and to adjacent thereto inner lining boards 2, that are located around all the external edges of the layered building board 1, so as they surround, encircle, or ring the external borders of the layered board 1, and are the elements located farthest outside on the length and width of the layered board 1, and are visible from the side of those end surfaces of the layered board 1 that are transverse to the inner and outer lining boards 2, 6.
Then, in the layered building board 1 there is a supporting structure 4 only comprising, in its simplest variant, a supporting frame 9 made from profiles, preferably steel profiles, while in a more complex variant, the supporting structure 4 is provided also with at least one supporting pole 10 and/or at least one reinforcing crossbar 11 and/or at least one reinforcement element such as reinforcing wire, reinforcing reeded rods, reinforcing lattices, meshes and the like.
Between the supporting structure 4 and the outer lining board or boards 6, spacer elements of a second type 5 are seated and fastened to this supporting structure 4, the spacer elements being located analogically to elements 3 of the first type, i.e., so as they surround, encircle, or ring the external borders of the layered board 1, and they are the elements located farthest outside on the length and width of the layered board 1 and are visible from the side of those end surfaces of the layered board 1 that are transverse to the inner and outer lining boards 2, 6.
The spacer elements of the first type and the second type 3, 5 are made from a stiff or elastic thermal-insulation material, and, moreover, in the space between the inner lining board/boards 2 and the outer lining board/boards 6 there are placed typical elements of internal installations (not shown in the drawings) used in the building industry.
The layered board 1 is filled, between the inner lining board/boards 2 and the outer lining board/boards 6, in all empty voids, with a thermal-insulation material that is a building foam with closed pores 8, for example, polyurethane foam or another analogical material, that simultaneously is a bonding agent binding and stabilizing all the components of the layered board 1, and that particularly binds the inner and outer lining boards 2, 6, that are shifted apart from the supporting structure 4 by some distance defined by the spacer elements of the first type and the second type 3, 5.
A method for manufacturing a layered building board comprising a supporting structure, outer lining board/boards, inner lining board/boards, and a thermal-insulation material filling the space between the internal and outer lining board/boards, and mounting means, as described above, according to the invention, is characterized in that onto a leveled, stable mounting surface, for example, a mounting table, one places horizontally and, optionally, fastens and stabilizes to the mounting surface, at least one inner lining board 2 in the form of a gypsum board, then a supporting structure 4 is provided as shown in an embodiment in the form of a reinforcing lattice in Fig. 3 or in another embodiment, as in Fig 4, containing a square supporting frame 9 with a single supporting pole 10, and spacer elements 3 of a first type, made from a thermal-insulation material, are fastened to the supporting structure 4 using an assembly adhesive, e.g., polyurethane adhesive, along all edge elements of the supporting structure 4, in a position pushed close to the end edge of the supporting structure 4, such that continuous longitudinal spacer elements 3 of the first type constitute a frame surrounding the section of the layered board that is dedicated to be filled with building foam, and so prepared supporting structure 4 is layered horizontally with the side containing the spacer elements 3 of the first type onto one or more inner lining boards 2, and the spacer elements 3 of the first type are mounted to the inner lining board 2 using an assembly adhesive or mechanical means such as screws.
In another embodiment, the supporting structure 4 may be equipped with a window and/or door opening, the borders of which, in the supporting structure 4, are defined by corresponding supporting poles 10 and reinforcing crossbars 11. A window or door frame is installed into the window or door opening in a later step. In such a case, the spacer elements 3 of the first type are also mounted along the elements of the supporting structure 4 that define the window/door openings. For an expert, it will be obvious that the spacer elements of the first/ second type 3, 5 define borders of spreading the building foam with closed pores 8, and that they are mounted in such as they correspond to the shape of the target layered board. In another embodiment, it is possible to produce the layered board 1 in a solid form and then to cut out the window or door openings at the end of the technological process after binding all the layers of the building board.
In the next step of the method according to the invention, spacer elements of a second type 5, made from thermal-insulation material, are mounted onto the supporting structure 4, on the side of normally placed outer lining board/boards 6, using an assembly adhesive, and then elements of internal installations are mounted in the internal space of the layered building board 1, and the target infrastructure is created using wiring, piping, and the like. Also, it is possible to first mount the internal installations and then insert the spacer elements of the second type 5. These steps are independent, and their order is arbitrary.
Then, empty spaces within the layered board 1 are filled with a liquid or semiliquid thermal-insulation material in the form of a building foam with closed pores 8. The dosing time (dosing rate) of the building foam is technologically adjusted to the time of filling subsequent board segments. Within the layered board 1, a layer of a thermal insulation core is defined as made from the building foam with closed pores 8, of width from 100 mm to 200 mm, for example, 120, 140, 150, 160 mm. After filling up the empty voids with the building foam with closed pores 8, at least one cement/nonwoven based outer lining board 6 is applied onto the supporting structure 4 equipped with spacer elements of the second type 5, and the board 6 is fastened to the supporting structure 4 or to the spacer elements of the second type 5 by using mechanical mounting means such as screws. Optionally, in the method according to the invention, after the step of dosing the foam and mounting the outer lining board 6, a demountable element that stiffens this outer lining board 6 is fastened on the outside of this lining board (i.e., outside the whole layered board), by which the binding process of the building foam with closed pores 8 becomes more stable. During the whole binding step of the building foam with closed pores 8, a constant distance between the inner and outer lining boards, 2, 6, is assured in the whole space of the layered board 1, thanks to precise leveling of the outer lining board 6 by demountable stiffening elements that, moreover, may be fastened to the mounting table, while the used mounting means (clips, tie-rods, vises) may also embrace the supporting structure 4 and/or inner lining boards 2.
All steps of the method according to the invention are conducted in a horizontal position of the layered building board, whereas all components of the layered board are applied, subsequently, in a horizontal position.
Fig. 4 shows an exemplary embodiment of the invention wherein a supporting structure 4 is used that comprises a square supporting frame 9 and one supporting pole 10. In this way, two sections of the layered board (a right-hand side portion and a lefthand side portion in Fig. 4) are created, and each of these sections has dimensions adjusted to the sizes of commercially available inner and outer lining boards, 2, 6. Also, it is possible to adjust the size of the whole supporting structure 4 to the sizes of single inner and outer lining boards 2, 6. Then, depending on the selected variant, it is possible to fill the whole space of the supporting structure 4 of Fig. 4 with a building foam with closed pores 8 in a single step and to close this space with a single outer lining board 6, or, in another variant, it is possible to fill the first section (e.g., the left one in Fig. 4) of the space of the supporting structure 4 with a building foam with closed pores 8, and to close this space of the first section with a single outer lining board 6, and then to repeat these operations, i.e., filling the second section (e.g., the right one in Fig. 4) of the space of the supporting structure 4 with a building foam with closed pores 8, and to close this space of the second section with a second outer lining board 6. In a variant of the method according to the invention, the step of filling the supporting structure 4 with a building foam with closed pores 8 is carried out subsequently by sections, the sections having dimensions adjusted to the dimensions of lining boards being used. So, in terms of the length and the width, the whole layered building board 1, as well as the supporting frame included therein, is a multiplicity of the dimensions of the lining boards.
Fig. 5 shows the first variant of the above-described ones when the step of dosing a building foam with closed pores 8 is carried out within the whole space of the supporting structure in a single step. After the step of dosing the building foam, one cannot see the internal supporting structure because it is covered with the thermal insulation filling of the building foam with closed pores 8, whereas the spacer elements of the second type 5, as seen in Fig. 5, constitute the frame surrounding the board from the side of external edges.
The layered building board, according to the invention, is a cuboid of a height that is, preferably, the target height of the erected building wall and a width that is the side dimension of the building in total or a half, or one-third of this dimension. The thickness of the layered building board is a dimension defined by adding the thicknesses of the spacer elements of the first and second types to the thickness of the supporting frame and by adding the thicknesses of the outer lining board and inner lining board. The layered building board, according to the invention, in regions where the spacer elements of the first type and second types are fastened, is a five-layer board and consists of layers constituting the outer and inner lining boards and of adjacent thereto spacer elements of the first and the second types, and the supporting structure placed therebetween. In other regions, the layered board may have only three layers: a layer of building foam and the layers of the outer and inner lining boards. In other regions, it may comprise five layers, but it consists of the outer and inner lining layers, the supporting structure, and a material of the building foam that is located between the supporting structure and the outer and inner lining boards in the regions where there are no spacer elements, but the formed space is intended to be filled with building foam. Such a situation occurs in internal regions of the layered building board.
The supporting structure comprises a frame or a reinforcing lattice made from profiles and, optionally, further supporting poles, reinforcing crossbars, and reinforcement elements. The supporting frame may have the form of a lattice or a simpler rectangular or square shape composed of four elements. All the components of the supporting structure or only some of them are made from steel profiles of a closed or open cross-section, for example, angle irons, T-bars, channel bars or poles of a square or rectangular cross-section, and the like. Such structures of a relevant carrying capacity are known to the skilled ones. Also, it is possible to use materials such as wood or plastics. In particular, additional elements such as supporting poles or reinforcing crossbars may be made from wood or plastics. Preferably, the shape/contour and dimensions of a said supporting frame correspond to the outer dimensions of the layered building board in terms of its height and width, and the outer edges or planes of the supporting frame or the supporting structure are or define the end sidewalls (perpendicular to the lining boards) of the layered building board. In such arrangement, the supporting frame/structure also constitutes the border delimiting the space of dosing a building foam.
In another variant, the supporting structure may have a somewhat smaller height and width than the intended dimension of the layered building board. In this way, one may predict a space for mounting adjacent subsequent layered building boards or mounting them in an overlapping manner. The space between the two types of lining boards is always filled with thermal-insulation foam.
The outer lining board is a board based on cement or known cement mixtures. For example, it is a cement/nonwoven board, wherein the reinforcing fibers may be cellulose fibers, glass fibers, plastic fibers, or metal fibers. Also, the outer lining boards may be specially reinforced either by stiffening or by adding chemical modifiers or such elements as reinforcing meshes, plastic meshes, and the like. Such boards are known to the skilled in the art.
The inner lining board is a gypsum board of any type also known to experts in the field.
Preferably, the thermal-insulation material is in a form that may be dosed, in the method according to the invention, in semi-liquid or liquid form in order to precisely fill empty voids defined by the supporting frame, and the additional elements such as supporting poles, reinforcing crossbars, reinforcement elements, and, for example, installations to be installed. The insulating material of this type is, additionally, a binding agent that stabilizes individual elements of the building board. The insulating material is a building foam with closed pores such as polyurethane foam.
The spacer elements of the first and the second types are made from insulating materials or materials of a low heat transfer coefficient. These may be wooden, xyloid or wood-based elements from polyurethane foam, expanded polystyrene, plastics, and the like. The spacer elements of the first and the second types may be identical or different both in terms of raw material as well as the shape and size, especially the thickness. The thickness of the spacer elements is for example from 10 to 50 mm, for example, 20, 30, and 40 mm. It is recommended to use the spacer elements of the second type bigger (of a higher cross-section), particularly thicker and creating a bigger distance between the supporting structure and the outer lining board, than the spacer elements of the first type that are used on the inside of the building, i.e., on the side of the inner lining boards. The spacer elements of the second type (used on the outer side of the building) also may be made from materials of better insulating properties than the spacer elements of the first type (used on the inside of the building). Preferably, for the purpose of the invention, a continuous spacer element is created, for example, in the form of a lath/tape, that may be seated onto the supporting frame as a continuous frame of a closed shape determined by the dimensions and the shape of the supporting structure. If the supporting structure is divided into sections, i.e., regions covered by subsequent lining boards, then the spacer elements may be conducted around the supporting structure, separately for every segment, or they may surround the layered board only along the supporting frame that defines the shape of the layered board and that is conducted on all of the four edges of the layered board.
The spacer elements are seated onto the supporting structure on surfaces facing (parallel) the lining boards, preferably they are placed flush with the outer edges of the supporting structure such that the spacer elements create, together with the elements of the supporting structure, planes (edges) constituting the ends of the building board - the planes perpendicular to the lining boards in the obtained layered building board. In other words, the end planes of the building board, located in the plane perpendicular to the lining boards (the outer and inner ones), are created by the end planes of the supporting structure and the end planes of the spacer elements, and the end planes of the lining boards. Together they define the thickness of the layered building board. All these end planes of the individual layers of the building board are fitted into a single common plane.
The elements of the internal installations (not shown in the drawings) are known to the skilled in the art and may belong to any installations, for example, they are elements of electrical installations, telecommunications installations, plumbing systems, heating installations, ventilation installations, and gas installations, i.e., installations that are conducted using, for example, ducts, cables, and pipes. It is possible to use any set of these installations, for example, the electrical installation alone.
In the layered building board, mounting means are used that should be understood broadly, for example, these are selected from a group of mechanical mounting means and binding mounting means - adhesives, for example mounting adhesives. Mechanical mounting means may be of any type, i.e., it may be bolts, screws, and the like. They are used, je for example, to join elements of the supporting structure together, or to mount the outer and inner lining boards to the supporting structure. Preferably, the spacer elements of the first and second types are mounted to the supporting structure by means of mounting adhesives. Preferably, such an adhesive is applied on the whole connection surface of the spacer elements to the supporting structure. For a skilled in the art, it is obvious that it is also possible, in the supporting structure, to use welded joints, soldered joints, rivets, and the like.
The window and/or door openings present in the layered building board may be of different types and they have, usually, standard dimensions. It is possible to use building boards in various variants, for example, with one window and one door, with two windows and without the door, and the like.
The supporting frame has a length and/or a width being a multiplicity of the length and/or the width of the inner lining board and the outer lining board. Preferably, one does not trim the lining boards (excluding the window and door openings). For example, the dimensions of the gypsum boards may be 1200 mm in the width and 2600 mm in height, then, the height of the supporting structure is also 2600 mm and the width is at least 1200 mm, and, preferably, a multiplicity. for example, double, triple, quadruplicity, etc. For example, dimensions of 1200 mm, 2400 mm, 3600 mm, 4800 mm, and the like.
The supporting frame may be divided into segments corresponding in terms of the dimensions to the dimension of the lining boards, such that the manufacture of the layered building board is carried out in steps, by filling subsequent segments of the supporting structure with foam and applying outer lining boards that correspond, in terms of the dimensions, to subsequent segments, thus closing the space of the subsequent segments.
The layered building board and the method for manufacturing thereof, according to the invention, makes it possible to shorten the building process by comprehensive manufacturing of the wall as a whole in one place, with suitably designed window and/or door openings, internal installations and supporting elements for transferring loads. Modular, replicable prefabricated elements having universal, mutually matched dimensions, are delivered to a building site. By using the supporting structure comprising a supporting frame, it is possible to use layered boards in multistory buildings and in buildings of a more complex shape. The technology according to the invention allows for producing ready-to-use boards of any size, thus eliminating the necessity of joining smaller elements into a whole not until on the building site.
In the process of manufacturing the building board according to the invention, thermal bridges are eliminated that occur in typical solutions at the contact between the outer/inner lining boards and elements of the supporting structure.
According to the invention, spacer elements are used made from a material of a low thermal transfer coefficient, effectively eliminating heat transfer at the contacts of the lining boards with a surface of elements of the supporting structure, this being particularly important in the case of steel elements. The spacer elements create a distance between the steel elements and the material of the lining boards.

References

1 - layered building board
2 - inner lining board
3 - spacer elements of a first type
4 -supporting structure
5 - spacer elements of a second type
6 - outer lining board
7 - mounting means
8 - building foam with closed pores
9 - supporting frame
10 - supporting pole
11 - reinforcing crossbar

Claims

A layered building board having a supporting structure, outer lining board/boards, inner lining board/boards, and a thermal-insulation material filling the space between the internal and outer lining board/boards, and mounting means, characterized in that between the inner lining board/boards (2) and the supporting structure (4) there are located spacer elements of a first type (3), whereas between the outer lining board/boards (6) and the supporting structure (4) there are located spacer elements of a second type (5), and the spacer elements of the first and the second types (3, 5) are made from a thermal-insulation material, and, moreover, in the space between the inner lining board/boards (2) and the outer lining board/boards (6) there are placed elements of internal installations, and thermal-insulation material filling the empty spaces between the inner lining board/boards (2) and the outer lining board/boards (6) is building foam with closed pores (8).
The layered building board according to claim 1, characterized in that the supporting structure (4) comprises a supporting frame (9) made from profiles and, optionally: supporting poles (10), reinforcing crossbars (11), and reinforcement elements.
The layered building board according to claim 1 or 2, characterized in that the building foam with closed pores (8) is polyurethane foam.
The layered building board according to claim 1 or 2, or 3, characterized in that the outer lining board (6) is a cement/nonwoven board, and the inner lining board (2) is a gypsum board.
The layered building board of any claims from 1 to 4, characterized in that the elements of internal installations are elements of installations selected from a group of electrical installation, telecommunications installation, plumbing system, heating installation, ventilation installation, and gas installation.
The layered building board of any claims from 1 to 5, characterized in that it comprises mounting means selected from a group of mechanical mounting means (7) and mounting adhesives.
The layered building board of any claims from 1 to 6, characterized in that it comprises window and/or door openings.
A method for manufacturing a layered building board comprising a supporting structure, outer lining board/boards, inner lining board/boards, and a thermal-insulation material filling the space between the internal and outer lining board/boards, and mounting means, characterized in that at least one inner lining board (2) is placed onto a leveled mounting surface, a support structure (4) is provided onto which spacer elements of a first type (3), made from thermal-insulation material, are fastened on the side of the inner lining board (2), then so prepared supporting structure (4) is positioned and attached horizontally onto at least one inner lining board (2) with its side provided with spacer elements of the first type (3), then spacer elements of a second type (5) made from thermal-insulation material are mounted onto the supporting structure, on the side of the outer lining boards (6), and then elements of internal installations are mounted in the internal space of the layered building board, and empty voids are filled with a thermal-insulation material of building foam with closed pores (8), and then, onto the support structure (4) on the side of the spacer elements of the second type (5), at least one outer lining board (6) is applied onto which, optionally, a demountable element is fastened that stiffens this outer lining board.
The method according to claim 8, characterized in that the spacer elements of the first and the second types (3, 5) are mounted to the supporting structure (4) using an assembly adhesive.
The method according to claim 9, characterized in that the building foam with closed pores, as used, (8) is polyurethane foam.
The method according to claim 8 or 9, or 10, characterized in that a cement - nonwoven board is used as the outer lining board (6), whereas a gypsum board is used as the inner lining board (2).
The method of any claims from 8 to 11, characterized in that the outer and/or inner lining board (6, 2) is fastened to the supporting structure using mechanical mounting means (7).
The method of any claims from 8 to 12, characterized in that the elements of internal building installations are elements of installations selected from a group of electrical installation, telecommunications installation, plumbing system, heating installation, ventilation installation, and gas installation.
The method of any claims from 8 to 13, characterized in that window and/or door openings are made in the layered building board.
The method of any claims from 8 to 14, characterized in that a supporting structure is provided (4) that has a length and/or width being a multiplicity of the length and/or the width of the inner lining board (2) and the outer lining board (6).