Metal roof

The utility model relates to a metal roof which comprises a purline layer, a heat preservation waterproof layer, a fixing support, a roof panel and a connecting assembly, the purline layer is arranged at the top of a main body structure, the heat preservation waterproof layer is arranged above the purline layer, the bottom of the heat preservation waterproof layer is connected with the purline layer, and the lower portion of the fixing support is fixed in the waterproof heat preservation layer; the roof panel is connected with the heat preservation waterproof layer through a fixing support. Each connecting assembly comprises a connecting piece and a connecting rod, each connecting piece is arranged at the connecting position of every two adjacent roof panels, and every two adjacent connecting pieces are connected through the corresponding connecting rod. According to the utility model, the roof panels are fixed on the roof by using the fixed supports, and the adjacent roof panels are further reinforced throug