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1. WO2021004731 - BUILDING ELEMENT

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

Claims:

1. A rectangular building element (1; 1’) which comprises

- a surface board (10; 10’) forming a first facing surface (2; 2’) located oppositely to a second facing surface (3; 3a’) of the building element;

- a first edge surface (4; 4’) on a first edge, which is located oppositely to a second edge surface (5; 5’) on a second edge;

- a third edge surface (6; 6’) on a third edge, which is located oppositely to a fourth edge surface (7; 7’) on a fourth edge;

- heat insulation material between the first facing surface (2; 2’) and the second facing surface (3; 3a’), the heat insulation material comprising building foam (8a; 8a’); and

- a plurality of rectangular, longitudinal support structures (9; 9’) ar ranged at a distance (L2; L2’) from each other, which in a vertical position extend between the first edge surface (4; 4’) and second edge surface (5; 5’) of the building element (1; 1’), the support structures (9; 9’) being bound together by the building foam (8a; 8a’), and top surfaces (11; 11’) of the support structures (9; 9’) being arranged at a distance (LI: LI’) from a bottom surface of the surface board (10; 10’) by means of the building foam (8a; 8a’), characterised in that there is sand between adjacent support structures (9; 9’), which forms soundproofing ad jacent layers of sand (8b; 8b’) between the support structures, the layers being sup ported from below by the building foam (8a; 8a’) and covered by the building foam (8a; 8a’).

2. A building element (1; 1’) as claimed in claim 1, characterized in that the layers of sand (8b; 8b’) extend from the first edge of the building element (1; 1’) to its opposite second edge.

3. A building element (1; 1’) as claimed in claim 1 or 2, character ize d in that the support structures (9; 9’) support the layers of sand (8b; 8b’) laterally.

4. A building element (1; 1’) as claimed in any one of the preceding claims, characterized in that the outermost opposite support structures (9, 9’) of the building element (1; 1’) are located on the third edge and correspondingly fourth edge of the building element (1; 1’).

5. A building element (1; 1’) as claimed in any one of the preceding claims, characterized in that the support structures (9; 9’) extend from the first edge surface (4; 4’) of the building element (1; 1’) to the second edge surface (5; 5’).

6. A building element (1; 1’) as claimed in any one of the preceding claims, characterized in that the surface board (10; 10’) is a multilayer building board made of crosswise glued conifer chips.

7. A building element (1; 1’) as claimed in any one of the preceding claims, characterized in that a thickness (S; S’) of the layers of sand (8b; 8b’) is 30 to 120 mm.

8. A building element (1; 1’) as claimed in any one of the preceding claims, characterized in that a grain size of the sand is 0 to 4 mm.

9. A building element (1’) as claimed in any one of the preceding claims, characterized in that the bottom part of the building element (1’) com prises a bottom board (12’), whereby the bottom surfaces (16’) of the support structures (9’) are arranged at a distance (L3’) from the top surface of the bottom board (12’) by means of building foam (8a’).

10. A building element (1’) as claimed in claim 9, characterized in that it comprises a base board (13’) below the bottom board (12’), whereby be tween the bottom board and base board there is a battening which is formed of a plurality of longitudinal supports (14’) and to which the bottom board and base board are fixed, whereby the adjacent longitudinal supports together with the bot tom board and base board form a plurality of longitudinal installation channels (15’), which extend from the first edge surface (4’) of the building element (1’) to the second edge surface (5’).

11. A building element (1’) as claimed in claim 10, characterized in that the longitudinal supports (14’) are rectilinear with the longitudinal support structures (9) and are vertically aligned with the support structures.

12. A building element (1; 1’) as claimed in any one of the preceding claims, characterized in that the building foam (8a; 8a’) is polystyrene.

13. A building element (1; 1’) as claimed in any one of the preceding claims, characterized in that the support structures (9; 9’) are wooden.

14. A building element (1’) as claimed in any one of the preceding claims, characterized in that its length is 5 to 10 m, its width is 2 to 3.5 m, and its height is 0.3 to 1 m.

15. A building element (1; 1’) as claimed in any one of the preceding claims, characterized in that a combined width of the layers of sand (8b; 8b’) is 50 to 90% of the width of the building element (1; 1’).