But the wiring is recommended to be carried out before the screed. The screed itself is performed for a thickness not exceeding five centimeters. In the event that a higher level of floor leveling is required, a substrate of expense clay or polysterol foam is made to facilitate the screed. These materials are known for their useful qualities, among which the heat is separately mentioned — and sound insulation properties. As for the screed process itself, during this, it will be best to use welded reinforcing reinforcement. If the floor screed is carried out in a long corridor or large room, then in the middle of the room you need to make technological sections to avoid the formation of cracks in the screed.