Another negative moment is indirectly related to low strength — the need to reinforce masonry. In addition to increasing the complexity and costs of masonry, this necessitates additional thermal insulation of the formed bridges of the cold. The porosity of foam concrete contributes to high hygroscopicity, which requires additional protection of the material from atmospheric effects. In the manufacture of blocks, an uneven shrinkage occurs, which leads to the need for the device of an additional leveling layer of plaster, or a brick cladding or a ventilated facade device.