Technological process and stages of alignment of the floor with a dry screed
Alignment of the floors by arranging a dry screed will avoid wet work in the room. The technological process does not imply the use of solutions and prolonged drying, which significantly reduces the temporary costs of preparing the base of the floor and will immediately move on to laying the flooring.
The design of the screed determines the small labor intensity of the work and the possibility of using inexpensive materials. The small weight of the structure allows you to use this type of screed in rooms where an increased load on the overlap should be avoided. Disadvantage of dry varieties of screed is weak moisture resistance.
The main components of the dry screed are backfill and sheet material. As a backfill, sand, slag, perlite sand, expanding expanded clay are used. In addition to alignment, the bulk material provides good floor insulation. Close the backfill with any leaf material of sufficient strength: chipboard, GVL, plywood, etc. D.
To protect the bulk layer from moisture, vapor barrier from a plastic film is equipped. The material is laid with a slight overlap on the wall, the joints are compacted by reinforced tape. A strip of foamed polyethylene along the wall will increase the soundproofing properties of the floor, the material performs the function of the compensator during thermal deformation of the screed.