For several years, the main technical problem encountered in the development of numerous expert opinions are leaky waterproof insulation on the terraces and balconies and in the garages. This is the result of not abided, seemed to be generally, well known principles of design and construction of such insulation. In connection with lack of knowledge of the investors, not enough knowledge of ever new materials or technical solutions, andbdishonesty of executor, it leads to deplorable consequences.

Keywords:waterproofing insulation, waterproofing, rules for the implementation of insulation, leaks of insulation.