Vorkuta is situated in the southern part of cryolithozone in the Eastern Plain, witthin the zone of discontinuous and non-anchored permafrost distribution. Engineering techniques of building on the icy peaty loams in such conditions are very complicated even nowadays. However the house have been built some 40 yrs ago without ventilated cellars or any mean of permafrost basement preservation. Results are multiple cracks due to inequal subsidence of the quarter of the house. Engineering solution of the problem was to strengthen the building on the whole by reducing the area of windows which are the zones of weakness. To make subsidence rates lower the subsiding part of the building was connected with metal rods around the perimeter, as you can see on the photo.