Introduction. The problem of efficiency of process technologies, invested into innovative building engineering systems, needs more attention. The co-authors of this research article have analyzed different options for the installation of green roof systems. The mission of the study is to analyze the engineering processes that encompass the installation of different green roof systems and to minimize their labour intensity by improving their efficiency. In pursuance of this mission, the co-authors set and achieved such objectives as the review of the researches completed by the Russian and foreign scholars specializing in green construction and roofing technologies, and the analysis of the technological efficiency of green roofing systems. New engineering solutions, such as modular rooftop gardens, can be applied to reduce the overall labour intensity of green roofing.
Materials and methods. The co-authors have used comparative analysis, network planning, and scheduling theory methods.
Results. The co-authors have performed this research to identify the efficiency criteria for the process of installation of green roof systems, such as continuous green roof systems (Option A) and modular green roof systems (Option B).
Conclusions. With regard to the findings of the study one can make a conclusion that there is a need for new engineering criteria to be developed and enacted. The description of their organizational, technological and structural characteristics must be provided in respect of the installation of innovative building engineering systems, including different types of green roof systems.