Additional costs in the production of construction works in the winter during the reconstruction and modernization of existing enterprises are defined by rules of Section I of the gos 81-05-02-2001 estimated cost of construction works, calculated in accordance with the project. The rules of Section I covers all kinds of additional costs caused by the production of works in the winter, as well as the temporary heating of buildings, finished in the rough. Under the buildings, completed in the rough, means a building with the wall, the top coating and filling all the openings. Rules of Section I are annual averages and calculations for completed construction and installation work shall apply irrespective of the actual time of the year in which the construction. The combined estimated construction cost calculations of industrial sites additional costs associated with the production of construction works in the winter time, are determined by the relevant rules of Table 4, section I, established by industry, based on the cost of construction and installation works for each company being built on an industrial site. Industries are determined by the "All-Russian qualifier of the national economy>> (). Additional costs associated with the production construction works during the winter, when building shared by a group of enterprises industrial site of objects of subsidiary industries and households, access roads and rail networks electricity, water, sewerage and other defined for each such object on the relevant rules of Table 4 of section I. The estimated rate of additional costs in the winter season for residential buildings, in Table 4, section I, pp 11.1 – 11.3 (Residential building large-, body-block, brick and wood), installed in residential buildings in the projects which are not considered external engineering networks, intra- layout and driveways, landscaping, gardening, etc.