In this article merits and demerits of a known construction material – an aerated concrete are considered. Disadvantages in use of steam-cured aerated concrete more detailed, because there is not enough information about it. Problems exist at all stages of construction process: from design to application of products on building areas. We suggest producers to focus their attention on improvement of production quality. Also, it is important to show consideration for studying of properties and getting design performance. We sincerely hope that this article will help consumers to understand properties of an aerated concrete thoroughly.