If earlier the usual floor screed could only be made with concrete, then in our time, concrete has quite strong competitors. And concrete loses its position in the services market, then, to AK dry and half -dry, more attractive in its characteristics and installation timing.
Dry screed is a kind of “layer pie” from various materials. The first layer is certainly a film for moisture insulation. The second layer is placed insulation, most often from expanded clay. Insulation also acts as a sound insulator. Next, sheets of gypsum fiber are laid on expanded clay. These sheets, in fact, can be called the floor.
The technology of laying dry screed usually does not raise questions. The most difficult thing in this case is to set the level correctly.
A dry screed can be made on top of the existing concrete floor. With the help of such a screed, you can perfectly remove the drops of several centimeters.
A cement-sand screed with a small amount of water with the addition of fiber fiber is called a semi-dry screed.
As in the case of a dry screed, they first make a moisture insulation, after which a cement-sand solution is prepared with the addition of fiber fiber. In some cases, concrete plasticizer is also used.
