Lags under the cover should be laid perpendicular to the direction of light from windows and in rooms with a definite direction of movement of people (eg, corridors) – perpendicular to the motion. Logs should be joined among themselves flush ends anywhere in the room with the displacement of joints in the adjacent joists not less than 0,5 m between the beams and walls (septa) must leave a gap width of 20-30 mm. In the floor to the ceiling surface of the lag should be lined with a layer of sand, tamping it with sound absorbing pads or lags across their width or length. Logs should address the soundproof layer slabs or sand leveling layer across the bottom surface, without gaps. You can not tamp wooden wedges or pads under the logs for their alignment shall not be permitted support log on wooden pads. Under logs, disposable on the posts in the floor on the ground should be stacked wooden strips on the two layers of roofing, the edges of which should be released from under the pads of 30-40 mm and fasten them with nails. Joints lag should be placed on the posts.
In the doorways of adjacent spaces should be establish an extended lag. It should advocate the partition of at least 50 mm on each side. Boards cover the plank, parquet board, connecting the side edges of a groove, and the parquet panels – with the help of dowels must be tightly pressed against each other.