Construction method for historic building roof maintenance

The invention relates to a construction method for historic building roof maintenance, and belongs to the technical field of historic building repair. Comprising the following steps that spraying inspection is conducted on a roof, and the roof leakage position is positioned; uncovering the cylindrical tile and the tile at the leakage position of the roof; the uncovered semi-cylindrical tiles and tiles are placed on a positioning mechanism on a roof, and the positioning mechanism is transferred through a displacement mechanism so that the semi-cylindrical tiles and the tiles can be repaired or replaced conveniently; and the semi-cylindrical tiles and the tiles at the positioning mechanism are transferred to the to-be-repaired position of the roof through the displacement mechanism, the tiles and the semi-cylindrical tiles are laid again, and maintenance of the historic building roof is completed. According to the construction method, the safety of repairing the roof of the historic building can be improved, an