More attention is being paid to the transition to domestic software with the digitalisation of the construction industry and import substitution. At each stage of construction, additional products are needed, including CAD and BIM. The experience of integration of Russian-made systems for the tasks of information modeling of transport infrastructure and road construction is considered. Within the framework of the work the integration of Vitro-CAD CDE and Topomatic Robur software system was performed. Joint work of the construction project participants in a single information space was organized. The efficiency of work of the project participants was determined due to the release from routine operations. Integration experience has shown that the combination of Vitro-CAD and Topomatic Robur allows to manage project data efficiently, store files with version tracking, coordinate documentation and issue comments to it.

Keywords: common data environment, information space, information model, digital ecosystem, computer-aided design, building information modeling, automation, integration, import substitution, software complex, platform, design documentation, road construction

The technology of erecting inverted green roof in exploited roofs is becoming increasingly relevant in modern construction in accordance with the principles of sustainable development and energy efficiency. However, the theoretical support for the design and construction of an inverted roof is still not enough – there is no comprehensive analysis of the roof structure, which would comprehensively take into account various criteria. The study developed mathematical models of three systematized groups of erection of inverted roofs (on supports, without supports and roof-parking) according to three enlarged criteria that comprehensively characterize their design: tecnological efficiency, resource efficiency and environmental friendliness. The results of the study make it possible to determine the optimal solutions for roofing at the stage of variant structural and technological design for their further improvement and application in construction practice.

Keywords: inverted roof, exploited coating, system of criteria, systematization, structural and technological design, variant design, expert analysis, mathematical modeling, technological efficiency, efficiency, environmental friendliness

The variety of options for construction of inverted roofs with exploited roof coverings necessitates an analysis of structural and technological solutions at the stage of variant design of exploited roofs. At present, there is no comprehensive assessment and analysis according to a system of criteria that sufficiently fully characterizes the design of the roof on a structural and technological basis. The study evaluates three basic grouped and systematized options for inverted roof construction (with supports, without supports and rooftop parking) by a system of criteria for an exact evaluation of the efficiency of a roof in construction projects using expert analysis. The proposed system of evaluation criteria makes it possible to determine the optimal solutions for inverted roofing in a practice of building construction in case of variant design.

Keywords: inverted roof, exploited roof, exploited coating, variant design, system of criteria, systematization, structural and technological solution, evaluation of options, expert analysis, mathematical modeling, optimality, efficiency