The photos show the stages of laying a chipboard floor with tongue and groove joints. They can be purchased at specialized carpentry stores. Their dimensions (205 x 92,5 cm) facilitate transport and handling – even one person can carry them up the narrow stairs to the attic. They are soaked in a special substance, however, in particularly humid places, special types of boards that are particularly resistant to water should be used. For common purposes, the thickness of the plate is 22 mm (with the maximum beam spacing of 50 cm).
Laying method:
1. We put pieces of wooden fiber insulation boards on the joists at intervals of approx 45 cm. They are used to dampen vibrations of a floor made of floor boards or finishing boards and dampen the sound of footsteps, so that you can't hear them in the rooms below.
2. Beams with dimensions 4 x 6 cm is placed on the insulating material. The joists and structural floor beams are not twisted together. The floor lies freely on the joists, without a rigid connection to the ceiling.
3. We put the first board and align its position. We leave a gap in width on the sides 15 mm, which we secure with wedges or pieces of mineral wool.
4. The boards are glued along the shorter edge. We cover with carpentry glue (white) groove or tongue, and then press down on the second plate.
5. The second row of boards must be positioned like this, that the glued edges are not on the same line. One plate must therefore be shortened by a third of its length.
6. We drill holes for screws along the longer edges, with which we will screw the boards to the beams. You need to be careful, that the edge of the board always reaches the sweat thickness of the beam below it.
7. Star-headed wood screws are best screwed with a special drill.
8. This is what the edges of the bolted plates look like. Please note the alternating arrangement of the plates.
9. Grouting is necessary, if we plan to lay very thin floor coverings on the boards, such as PVC tiles.
10. If we plan to set up vertical walls, it is best to match them with a specific piece of furniture. For example, a height cabinet 80 cm requires a wall high on 85 cm. We start by marking the level of the wall on the slab.
11. Unnecessary scraps of battens screwed at the level of the rafters will serve as buttresses.
12. We determine the position of the vertical bar using the level.
13. After trimming the vertical supports…
14. …they are screwed to the rafters with long star screws. Now you can screw gypsum boards or paneling.
