Preparing the substrate
The fact that the substrate should be clean, dry and free from loose material, is self-evident. The height of the possible unevenness should be checked in any case - minor unevenness is usually unproblematic, only if a solid insulating layer be installed from plates, they must be compensated in the rule by a bed. Pipes should be covered as far as possible, the impact sound insulation is usually made with appropriate plates that should be laid with a dense joint or multi-layer offset.
Edge insulation strips used should always be covered with foil. In some cases, a vapor barrier may be necessary. Over all insulation film is then placed, wrinkle-free secured and stretched as possible. If shred paper is used, the sheets are laid transversely to the subsequent casting direction and placed at least 10 cm above the edge insulation strip. Shocks should be glued or welded.
Checking the mixture
The consistency of the liquid screed mixture must always be checked before pouring. It must not be too liquid, otherwise the material will not set evenly. The mixing time must be kept exactly and the mixture must be mixed evenly. If necessary, the conveyor systems of the screed machine must first be rinsed with a so-called slurry in order to ensure a more uniform flow of the screed, which is of crucial importance for the screed quality.
When pouring in
The ready-mixed floating screed is spread through the conveyor system, which is used like a garden hose with even movements on the floor and brought to the correct height. It must be evenly buffed in all areas, so that the mixture is evenly. Geschwabbelt is doing both longitudinally and transversely best with a so-called Schwabbelstange, to the bottom of the applied screed. Here is some practice required.
After drying the screed, it should generally be sanded.