The article is devoted to the justifi cation of the use of light concrete for the production of enclosing structures that create a comfortable microclimate in the premises. Ways to expand the scope of light concrete application by introducing a material of a fused structure without a fi ne aggregate are proposed. The article substantiates the scientifi c hypothesis that the use of various types of air-entrapping surfactants will create a promising material, the numerous advantages of which allow us to consider it a worthy alternative to multilayer structures.