Using the fiberglass to strengthen the plaster layer — the phenomenon is necessary and very common. If you take, for example, brick new buildings, then they have the property of «sit down», and as a result of such a shrinkage, cracks are formed on the plaster. To compensate for stresses, against the formation of cracks, and they use a fiberglass that perceives part of the efforts in the plaster layer and prevents it from collapsing. It is used not only in brick houses, but also in frame housing construction with self -supporting walls from blocks, in panel houses, etc. D. Now we will try to figure out how to apply this, obviously useful, building materials in practice.