Galaxy photoelectric building materials are integrated with the roof through hot air welding, without the need for brackets, can be automatically and quickly installed, easy to carry by one person. The labor cost is low while installation efficiency high. It is labor-saving and material-saving; The unique ventilation structure design can effectively reduce the back temperature and prolong the life of the roof, while ensuring efficient power generation and reducing the total project cost. Focusing on the advantages of "lightweight", Galaxy is expected to be widely used in various scenarios such as new rural construction, old bulidng repair & renovation, fishery and solar complementation, and agriculture and solar complementation, and has broad development prospects!