Is used to

In its density, the foam block is divided into stamps from 400 to 1200. Guided by this marking system, it should be borne in mind that a denser foam block of the brand 700-1200 is used to form the foundation and the main load-bearing walls. For the construction of internal walls — foam block of the brand 600-700, and for thermal insulation — already a very easy version of the 400th brand.