Black floor laying under parquet
When laying the black floor, new technologies are used. Its basis is the use of plastic or wooden lags with threaded holes, into which plastic bolts responsible for the stability of the lag are introduced. It turns out that there is no contact point between the base and the lag. The bolt is fixed with dowel to the base of concrete, if the base is wooden, then self -tapping screws are used. A step should be installed between the lags, as a rule, on the width of the parquet board or laminate.