The aluminium roof panel is made of 3004,3005 aluminium magnesium and manganese alloy as based materials, the colled materials of PVDF coated it's directly shaped and processed in the construction site and also has excellent workability. Aesthetics and excellent water resistance, the aluminium roof panel applies for the large span roofing system, multifunctional roofing system, double roofing system, big slope roofing system and other projects, which fully meet the needs of a wide selection of architectural design concept. There is a trend that the aluminium roof panel is gradually taking place of painted steel and other metal roof panel.