Economically, it turns out appropriate, the use of such blocks in suburban housing construction. However, it should be noted that they are very hygroscopic and with low indicators for heat transfer. External walls are subject to mandatory plaster or decoration with materials not allowing direct moisture. Here it is advisable to use finishing materials, such as: siding, lining, block house, hinged facade panels. With proper use of the protection of slag blocks from direct moisture, reliably guarantees the stability, strength and durability of the building or structure.