Abstract: A device for heating a room (2) in a building by means of underfloor heating, the floor comprising pipe loops (4) for circulation of a hot medium, preferably water. The floor has a subfloor (1) and an upper floor (8) at a mutual distance, so that an air-filled chamber (16) is formed between them. In the outer wall (3) of the room there are inlet openings (7) for fresh air, which by means of negative pressure ventilation in the room (2) flows into the chamber (16), over the pipe loops (4) to heat up, and out through outlet openings (9) in the upper floor (8). The heat absorbed from the pipe loops (4) goes partly up through the upper floor (8), partly out into the room (2) as heated air. The pipe loops (4) extend transversely of the direction of movement of the air from the inlet (7) to the outlet (9) and are partly cast in concrete on the bottom of the chamber (16).

Abstract: A sliding door arrangement comprising a sliding door (1) which is movably suspended from a rail system (23, 24) in order to be moved horizontally between two end positions wherein the door respectively opens and closes a door opening (10). The sliding door (11) is mounted in a housing (1) arranged for insertion in a wall (15) in a building. The housing is made of metal plate material and comprises two vertical long walls, two vertical short walls, one top wall, and one bottom wall. The long walls have door openings that at least partly are bordered by sealing elements. The door has a sealing element on its bottom side. The housing with the door installed is manufactured in a factory and shipped to the building site as a unit ready for installation in the wall.

Abstract: A sliding door arrangement comprising a sliding door (1) which is movably suspended in a rail system (23, 24) in order to be moved horizontally between two outer positions wherein it respectively opens and closes a door opening (10). The sliding door (11) is mounted in a cassette (1) arranged for insertion in a wall (15) in a building.

Abstract: A structural wall has a self-supporting wall externally being provided with laths for attachment of a base plate for an outer plaster layer. The base plate consists of a wood composite material comprising polyurethane mixed with wood wool and is having good insulating ability. To utilize the insulating properties of the base plate and provide for a better fire rated wall, the spacing between the laths, originally being a air-gap, is filed with a rock wool mat having drainage facility for moisture at the side facing the base plate.