For sound insulation, it is necessary to use asbestos -cement plates, bulk mineral material or wood -fiber plates (another name expanded clay). Between the lags and the columns, you need to make gaskets from the board, which has a thickness of at least 2.5 cm, a width of 10 to 15 cm, length 2.5 m. After laying the lag and their alterations, they move to the flooring of the boards in level.
