Green roofs are of increasing interest as one of the solutions to counteract a number of environmental and socio-economic problems associated with the growth of urban areas. It is necessary to transform the built-up environment by including it in civil engineering, using the existing roof areas of buildings. Eexploitable green roofs need to be integrated into an urbanized urban landscape.

Keywords: sustainable urban development, transformation of urban spaces, green roofs, criteria for the intensity of use of green roofs

The world's reserves of renewable energy sources are steadily declining, but the comfort of life in modern society should remain at the same level. The modern solution of the problems of thermal protection of facade systems of buildings is associated with the analysis of the specific heat capacity of the materials included in their composition. The use of new energy-efficient materials is becoming especially relevant. Such materials include vacuum thermal insulation panels, which significantly reduce heat loss in comparison with traditional thermal insulation.

Keywords: energy efficiency of buildings, thermal protection of facade systems, thermal insulation, vacuum thermal insulation panels, construction production

The article discusses various mechanisms of self-healing of concrete used in the construction of buildings and structures designed for certain operating conditions and the environment, which saves resources and time during maintenance and repair of objects for various purposes. Types of self-healing of concrete: With hollow fibers; Microcapsulation; Expanding additives; Bacteria. Conclusions. Today, progress has been made in understanding the relationship between the structure of materials and their properties. Thanks to the knowledge gained about the structure of materials, the possibility of designing materials of directional quality was considered, which guarantees their compliance with certain operating conditions and the environment.

Keywords: concrete, destruction, self-healing, hollow fibers, microcapsulation, expanding agent, bacteria

The article considers the possibility of improving the physical, mechanical and environmental properties of polymer concrete by changing their component composition depending on the requirements for the operational characteristics of the construction object. Currently, the research of scientists is aimed at the development and implementation in construction practice of compositions of light building materials, the range of densities of which varies depending on the tasks set. Such an additive as glass, changing the physical properties of the material, significantly improves its characteristics, there are the following types of such concrete: glass concrete with fiber, concrete with optical fiber, with cullet, and also a solution where glass is used as a binding element. Liquid glass, when added to concrete, helps to improve the stability and strength of plaster and concrete structures. When using this material, you can find a lot of positive things. The environmental friendliness of the material expands the scope of its use, which is very important at the present time. The new material is easy to obtain, is made from affordable materials, has improved physical and mechanical characteristics, which makes it competitive among a wide range of products on the global construction market.

Keywords: polymer concrete, liquid glass, glass concrete, optical fiber, cullet, modification, strength, composite material, glass fiber concrete, secondary raw materials

The article considers the possibility of using a new generation of thermal insulation materials in construction. The authors analyze the distinctive features of thermal insulation boards, reveal the advantages and disadvantages of insulation made of extruded polystyrene foam. Based on the analysis, it is concluded that these materials and technologies are a promising alternative to traditional ones.

Keywords: green roofs, thermal insulation, extruded polystyrene foam, fire hazard class, water absorption, biostability, strength, durability

The article discusses the possibility of using new generation lightweight materials in construction. The author analyzed the distinctive features of membrane structures, revealed the advantages and disadvantages of the ETFE film. Based on the analysis, it was concluded that these materials and technologies are an easy and promising alternative to traditional ones.

Keywords: innovative facade systems, textile architecture, membrane structures, ethylene-tetrafluoroethylene copolymer film, energy efficiency

Improving the structure of the management apparatus at modern construction enterprises is a necessity in conditions of increased competition in the market of products and services. The size, conditions of work, organizational and legal forms determine the production structure of construction companies. The growth of production leads to the optimization of the organizational structure of the construction company management, corresponding to its goals and objectives. Therefore, there is an increased need to review the existing management structures of construction organizations, which serve as a new modern socio-economic environment. Optimized organizational structures of construction companies and organizations should be easy to manage and be able to adapt to the changing economic conditions of the modern market.

Keywords: management apparatus, construction production, organizational structure of management, functional divisions of management apparatus

The article provides an overview of the main methods for increasing the energy efficiency of buildings. The main causes of heat loss in the building are revealed. The ways of solving the problems of energy consumption of new objects are shown: installation of alternative energy sources, improvement of thermal insulation of enclosing structures, installation of high-efficiency ventilation with heat recovery, use of energy-saving windows. The legislative base and state programs stimulating energy-efficient construction in our country are considered. A study was made of modern methods of building buildings, allowing to reduce energy and resource costs

Keywords: energy efficient buildings, energy resources, heat insulation, heat loss, geothermal heating, solar collector, energy saving windows

The development of underground space in the design of buildings and complexes determines the direction of modern construction. Special attention is paid to the use of new technologies and the organization of production in the development of underground spaces of historically developed urban areas. Constrained conditions of construction in existing urban development represent construction site bounded by city buildings and structures with their subterranean communications with the adjacent road network and land facilities. In such a situation when doing work to minimize the effect of underground construction on the existing development and the geological environment is required when strict compliance with the building regulations. The method "wall in the ground" can be considered important and priority in the technical progress of construction of buried structures.

Keywords: use of underground space in construction, cramped conditions of construction, technology of construction of the underground part of buildings

Modern urban development policy pays special attention to the application of new and well-known technologies in the development of underground spaces of historically developed urban areas. Rational use of urban areas occurs up and down, without expanding the boundaries of urban areas. Technology "slurry wall" in the development of underground space continues to rapidly gain popularity. The use of this method allows to solve the problem of construction in cramped conditions and is one of the most popular in modern urban development practice

Keywords: rational use of urban underground space, advanced construction technologies in cramped conditions

The article presents the results of the analysis of temperature fields in the construction of multilayer walls depending on the location of ultrathin liquid insulation. Carried out graphical analysis. Summarizes the experience of reconstruction and operation of buildings.

Keywords: thermophysical properties of materials; architectural-structural design; thermal conductivity coefficient; the calculation of the temperature fields

Increase in efficiency of researches on expansion of range of fractionation of fillers by use of small career sands of the region is promoted by use of mathematical approach when planning an experiment. The mathematical model of an experiment has allowed to establish functional interrelations between prescription parameters (W/C, a ratio of amount of sands when mixing) and output properties of concrete (density, durability at compression). Surfaces of a response of functions have allowed to estimate visually change of properties of concrete mixes on the fractioned sand in the explored area of factorial space.

Keywords: resource-saving, secondary raw materials of the region, sand fractionation, mathematical model, factorial space, functions of a response.

Economy of resources in case of production of combined steel concrete designs is the main task of a construction industry. The possibility of expansion of the range of fractionation of fillers by use of small career sands of the region is considered that will provide flexible regulation of grain composition of filler. Enrichment of construction sand by small fractions of filler causes more dense packaging of grains, cutting a cement consumption

Keywords: resource-saving, cement economy factors, secondary raw materials of the region, sand fractionation, optimization of composition of filler