The development of the construction industry has both positive aspects of a social and economic nature, and negative ones - associated with an increase in the number of accidents, low quality of construction and installation work and the emergence of disputes between participants in construction production. The resolution of conflict situations arising in the construction industry between business entities is possible with the use of special construction and technical knowledge. One of the most demanded forms of application of such knowledge is judicial construction and technical expertise.

Keywords: construction, construction and technical research, forensic construction and technical expertise, expert opinion, research questions

This work is devoted to the problem of conducting a construction and technical judicial examination of a rolled roof after repair. The relevance of the use of roll roofing and its defects are considered. An example with a poor-quality roof repair is reviewed. Besides faults of the management of the homeowners' association were noted. These faults led to the emergence of ambiguity during the examination. They do not allow to interpret the situation in favor of the residents of the house fully, despite the obvious violations of the requirements of regulatory documents and the identification of significant defects. Considered a situation in which a dispute about the type of repair and related judical issues arises. Conclusions based on the results of the study were made.

Keywords: construction and technical judicial expertise, roll roofing, flat roof, maintenance, major repairs, defect, breach of joints