WO1997047830A1

WO1997047830A1 - Building system

Info

Publication number: WO1997047830A1
Application number: PCT/SE1997/001024
Authority: WO
Inventors: Lennart BÖRJESSON
Original assignee: Boerjesson Lennart
Priority date: 1996-06-12
Filing date: 1997-06-12
Publication date: 1997-12-18
Also published as: SE9602331D0; SE9602331L; AU3200597A; SE504744C2

Abstract

The invention relates to a building system for building comprising walls (2, 3) and roof, wherein the walls (2, 3) are built up from vertical struts (7) and them interconnecting vertical wall elements (8, 9) with included thermal insulation (10) between at mutual distances from each other located wall elements (8, 9). Between conjugate sideways (12) displaced to the foundation (13) of the building attachable vertical struts (7) extending cross bars (14) are arranged attachable with along the respective vertical strut (7) extending and to this screwable sheet metal profile (15) with a plywood (16) or some other disc-shaped board element outside wall and a barrier film in the form of e.g. a plastic-coated and reinforced board (17) inside wall between said vertical struts (7) respective sheet metal profiles (15) and vertical struts (14), wherein formed wall (2, 3) is open at the top allowing filling of insulation (10) from above.

Description

Building system

The present invention relates to a building system for building comprising walls and roof, wherein the walls are built up from vertical struts and them interconnecting vertical wall elements with included thermal insulation between at mutual distances from each other located wall elements.

Building systems usually comprise having to use a crane in order to handle prefabricated building units in the form of complete or sections of walls during erection of them on a house foundation, e.g. a cast in situ bottom slab or similar. The building elements have been assembled in house factories and have been transported a long way to the building site which among other things lead to unnecessary transports of the heavy building elements which leads to pollution of the environment. The building which is a result of this usually does not allow for a flexible handling, e.g. in order to exchange desired wall parts, e.g. for solar cells, for other windows and doors or for enlargement of the house.

Used insulation is usually only intended for one type of building elements, which leads to that it is not possible to choose any thermal insulating material, but instead is stuck to a beforehand settled insulating material which is adapted for precisely that building element which it is intended for. This is an important disadvantage, especially when considering all the environmentally adapted materials that emerge within the building line of business, among others of insulating material. Furthermore, thermal bridges are formed at prior art building elements which is a drawback when it is desired to build in such a way that the houses become as economic as possible with regard to heating economy. This also relates to the problem of building houses as impermeable as possible when building with non-polluting materials and e.g. avoid that the house become draughty like a hay barn. The main object of the present invention is therefore primarily to solve said problem at building systems which are suitable for applying when building the house on site, with few workers and with a low consumption of timber.

Said object is achieved by means of a building system according to the present invention which is essentially characterized in that between conjugate sideways displaced to the foundation of the building attachable vertical struts extending cross bars are arranged attachable with along the respective vertical strut extending and to this screwable sheet metal profile with a plywood or some other disc-shaped board - element outside wall and a barrier film in the form of e.g. a plastic-coated and reinforced board inside wall between said vertical struts respective sheet metal profiles and vertical struts, wherein formed wall is open at the top allowing filling of insulation from above or that thermal insulation is stuffed into the wall from its inside before mounting an internal wall element .

The invention is described in the following as a number of preferred embodiments wherein is referred to the drawings on which;

Fig 1 shows a horizontal section view of a building wall at one corner of the building,

Fig 2 shows a schematic side view of one gable of the building and a shown roof beam, Fig 3 shows a side view of one long side wall of the building with mounted roof beams, Fig 4 shows a view from above respectively a front view of a vertical strut of a building framework,

Fig 5 shows a wall element plane over the bottom of the building, Fig 6 shows a side view of one gable of the building,

Fig 7 shows a vertical section view of the wall element and roof of the building,

Fig 8 shows a wall element unit containing door,

Fig 9 shows a sectional view of a wall element with an into it mounted window,

Fig 10 shows a variation of a wall in horizontal section, and

Fig 11 shows the wall in vertical section.

An according to the present invention intended building system for building 1 comprising walls 2, 3, 4, 5 and roof 6, wherein the walls 2-5 are built up from vertical struts 7 and them interconnecting vertical wall elements 8, 9 with included thermal insulation 10 between at mutual distances A from each other located wall elements 8, 9 is arranged to be adaptable for building the main part of building 1 in question at the location 11 where the building is wished to be erected. Now this is enabled by between conjugate sideways 12 from each other with a desired distance X displaced, to the foundation 13 of the building attachable vertical struts 7 extending struts 14 are arranged attachable with along the respective vertical struts 7 extending and to this screwable sheet metal profile 15. Furthermore is a plywood 16 or some other disc-shaped board element arranged outside wall and a barrier film 17 in the form of e.g. a plastic-coated and reinforced board inside wall to be connected to the vertical struts 7 to extend between said vertical struts 7 within the respective sheet metal profiles 15 and vertical struts 14, along both the outside U and the inside I of the formed wall element 18. Due to this, the formed wall 2-5 is open at the top 0 to allow fillning of insulation 10 from above or that thermal insulation 110 is stuffed into the wall 102 from its inside before mounting an internal wall element 108.

The aforementioned sheet metal profiles 15 produce a substantial stiffening of the formed wall element 18 and the horizontal vertical struts 14 which may be nailed or screwed into the sheet metal profiles 15 at their respective ends 14A,

14B, form a stable support for inside barrier film 17 preventing the insulation 10 from risking being ripped apart when the wall preferably is filled from above with non-polluting tufts of wool 10 by spray application allowing the insulation 10 to be packed efficiently, so that all possible cavities may be filled by insulation material.

Accordingly, the said formed wall elements 18 are built up disparate inside I and outside U, as seen from the inner space 19 of the building, and this also is true for the attachment of the wall elements 18.

Said sheet metal profiles 15, the length of which substantially corresponds to the length of the vertical struts 7 present preferably Z-shaped cross-sectional profile with the web 15A principally corresponding to the thickness T of the vertical struts as seen across 20 the main surface extension of the wall 12.

Inside wall 17 is formed by a barrier film which is preferably at least five times as impermeable as outside wall 16 and which is formed by reinforced board or plastic. An inner located barrier film 17 or some other flexible, as loose material functioning barrier film building material layer enables the wall to be readily inspectable. Thereby, it is easier to see if the insulation has completely filled the wall by feeling the film 17 from the inside of the building.

The interconnection of the wall elements 18 at corners 21 is easily enabled owing to that separate ready angular corner sections 22 for the wall are screwable to vertical struts 7 via Z-shaped sheet metal profiles 15. Beside that are inner respective outer corner profiles 23, 24 of metal with V-shaped cross-sectional shape arranged to be connected with the inner sheet metal profiles 15 and their flanges 15C and with the outer board elements 16A, 16B respectively.

The mentioned vertical struts 7 are preferably formed by a centrally positioned board 25 with inner respective outer positioned conjugate at each side of the board 25 attached swellings 26 and 27 respectively, which extend past the upper end 25A of the board 25, to form a fork at the upper part of the wall element for reception of roof member 28 in thereby formed reception space 29.

The said attached swellings 26, 27 may be left out, as Fig 10 shows, and that the separate corner sections 22 may be left out if as Fig 10 shows, vertical struts 7¹ closest to corners at long side are moved out to outside the web of the struts at the gable. A standing extra vertical strut 50 is nailed to a corner vertical strut 7 in order to be able to fasten with nails horizontal vertical struts 14 at the inside of the wall .

At the bottom, the vertical struts 7 are put up perpendicular to for example a ground sill 30, which is bolted to a bottom slab 31 etc, and is bolted to the sill 30 by means of a pair of sheet angles 32. Between a number of said vertical struts 14 window- and/or door connection pieces 33; 34, 35 are attached.

The said sheet metal profiles 15, which exhibit Z-cross-sectional shape is arranged to be attached with their foot flanges 15B, directed towards each other, also in the corners 21, wherein a channel-shaped vertical extending space 36 is formed between conjugate sheet metal profiles 15, providing vertical ventilation of the wall element 18.

Between internally positioned sheet metal profiles 14 are attached extension sheet metal 37 in the form of for example plates, arranged for bridging the distance between sheet metal profile 15 flanges 15C extending away from each other for screwing e.g. wallboard 39 of gypsum, particle board or wood over the vertical struts 14. The weatherboardmg 38 on the wall elements 18 may either as shown m the drawings be constituted of cover boarding 38A, 38B with wider gable boards 38C, which are nailed to the vertical struts 14 or may compose other suitable material or other for example plates, facing brick, sheet metal etc. Finally may be mentioned that the roof 6 is built up as a cassette, tillable with insulation.

The building system according to the present invention lead to that it will be possible to simply and efficiently build intended building on site where the building is desired to be erected. The building may be built rapidly and with a few persons without requirement of a crane by first mounting the struts 7 distributed X around the circumference of the building, preferably with a centre to centre distance of 1200 mm. After that, the roof beams 28 of the roof are mounted so that their shape adapted respective lower part 28A is received m the upward hollow struts 7. A centrally located ridge board 37 is placed between the roof beams 28.

The wall elements 8 may then before or after said roof beams 28 has been mounted to the roof be mounted either from the outside or the inside, depending e.g. upon weather, or at the same time from both sides. Another advantage which is accomplished by the invention is a low consumption of timber, because the different parts are formed like hollow beams and that it is simple to screw away the wall elements 18 for e.g. exchanging wall elements and that the building system is flexible to be adapted to different kinds of thermal insulation material .

Instead of making the wall as a ready compartment shown in Fig 1-9 which may be filled from above with thermal insulation material, it may be made according to an embodiment which is shown in Fig 10 and 11. Then, the internal wall element 108 is formed by that a vapour impermeable wind protection film 150 is imposed carefully onto the on the inside lying vertical struts 114. For example, it is possible to select a wind protection film of the type Tet-Net, Monaflex AB or Icopal's bitumen coated board, at which inside wall 117 will be five times as wind impermeable as outside wall 116. Onto said wind protection film 150 as seen in towards the inner space 119 of the building is a gypsum wallboard 151, a fibreboard, boards or any similar covering layer may be imposed and attached in order to form an inner wall element 108 according to previously mentioned for wallpapering or painting etc. Alternatively, plastic film or other reinforced film may be used. It is desirable that the barrier film will be at least five times as impermeable as outside windproofing at inside of wall sloping roof . The invention is not limited to the embodiments which are shown in the drawings and described above, but may be varied within the frame of the patent claims without departing from the scope of the invention.

Claims

C l a i m s

1. A building system for building (1) comprising walls

(2, 3, 4, 5; 102) and roof (6) , wherein the walls (2-5; 102) are built up from vertical struts (7) and them interconnecting vertical wall elements (8, 9) with included thermal insulation (10; 110) between at mutual distances (A) from each other located wall elements (8, 9) , characterized in that between conjugate sideways (12) displaced to the foundation (13) of the building attachable vertical struts (7) extending cross bars (14) are arranged attachable with along the respective vertical strut (7) extending and to this screwable sheet metal profile (15) with a plywood (16) or some other disc-shaped board element outside wall and a barrier film (17; 150) in the form of e.g. a plastic-coated and reinforced board inside wall between said vertical struts (7) respective sheet metal profiles (15) and vertical struts (14) , wherein formed wall (2-5) is open at the top (0) allowing filling of insulation (10) from above or that thermal insulation (110) is stuffed into the wall (102) from its inside before mounting an internal wall element (108) .

2. A building system according to claim 1, characterized in that inside wall (17) is formed by a fabric shaped barrier film which preferably is at least five times as impermeable as external wall (16) and which is formed by reinforced board or plastic .

3. A building system according to any one of claims 1-2, characterized in that the sheet metal profiles (15) present Z-shaped cross-sectional profile with the web (15A) principally corresponding to the thickness (T) of the vertical struts as seen across the main surface extension (12) of the wall .

4. A building system according to claim 3, characterized in that corner profiles (23, 24) of metal with V-shaped cross- sectional shape are arranged to be interconnected with the sheet metal profiles (15) located at inwards located each other meeting parts of the wall.

5. A building system according to any one of claims 3-4, characterized in that separate complete corner section (22) for the wall are screwable via Z-shaped sheet metal profiles (15) to vertical struts (7) .

6. A building system according to any of the above claims characterized in that connection elements (33; 34, 35) for windows and/or doors are attached between a number of said vertical struts.

7. A building system according to any one of claims 3-5, characterized in that said sheet metal profiles (15) which present Z-shaped cross-sectional profile are arranged to be attached to the vertical struts (7) with its foot flanges (15B) directed towards each other, also in the corners wherein a channel shaped vertical space (36) is formed between conjugate sheet metal profiles (15) .

8. A building system according to any one of claims 3-5, characterized in that between internally located sheet metal profiles (15) are jointing plates (37) arranged to bridge over the distance between the sheet metal profiles from each other extending flanges (15C) in order to form support for plasterboard or some other cover board (39) .

9. A building system according to any of the above mentioned claims, characterized in that the roof (6) is built up as a cassette stuffable with insulation.