Detached houses of continuous large-size blocks of cellular concrete (gas concrete gas silicate and bulk density of 400-800 kg/m3) can be constructed by the economic way faster than a brick. The construction of these houses distributed mainly in the Nordic countries, and recently applied in Czechoslovakia. The volume of work performed by the developer, is negligible. Blocks of lightweight concrete with voids (cinder block, etc.) produced in the factory, used in Central and Western Europe. Masonry of these blocks, made by the individual builder, allows you to significantly reduce construction costs - by 3-5%.