The quality of the floor surface in new buildings is very rare. Actually, the same can be said about secondary real estate, since not all owners are engaged in the fact that they put the floor before the decorative decoration. Meanwhile, such works are of great importance, since only with their proper and obtaining a good result, it is possible to perform the finish itself with high quality and for a long time. The most important task in this case is the alignment of the surface. You can perform such an operation by different methods. Classic is the arrangement of a cement or concrete screed. The most serious advantage of this option of alignment should be called an cheapness of its implementation. But at the same time it is necessary to notice that the difficulty of performing work in this case is very high. And today, for this reason, there are simpler, but no less effective ways to get rid of irregularities. Much easier in the arrangement of bulk floors. To create them, self -leveling mixtures are used. In addition to the fact that they are incredibly easy to use, self -leveling mixtures also have additional advantages. In particular, they are distinguished by the ability to provide high thermal insulation and get rid of noise. To also increase these indicators, you can put a layer of polystyrene foam under the screed. There are a lot of advantages of self -leveling mixtures in front of a simple concrete screed. For example, the procedure for arranging a bulk floor can be carried out with less time and effort. The fact is that the cement-sand mixture has to be led manually to achieve a good effect. Whereas the self -leveling screed needs only to remove air bubbles from the mixture. They can significantly reduce the strength of the base for laying the flooring. You can do this with the help of instruments of different types, but the most effective will be a roller with spikes. Another serious plus of the use of self -leveling mixtures is that they quickly dry. To harden the cement-sand screed, you have to wait about three weeks. Only after this period can you start laying the flooring. In the case of the use of a self -leveling mixture of work, it is possible to continue after about two days. The only minus of this option is its high cost of implementation