The utility model discloses a
metal roofing board end
welding flashing plug node which comprises
metal roofing boards and a flashing board, protruding board ribs are arranged at the connecting positions of adjacent
metal roofing boards, the flashing board is connected with the metal roofing boards, the flashing board is provided with a horizontal board and a
flange or a cylinder body extending upwards, and the
flange or the cylinder body is connected with the metal roofing boards. The metal roofing board is connected with the outer edge of the universal horizontal board, the metal roofing board is arranged above the universal horizontal board, and the board rib is provided with a covering type plug at the joint of the metal roofing board and the universal horizontal board. The joint of the
metal roof panel and the universal horizontal plate, the joint of the plate rib and the universal horizontal plate, and the joint of the covering type plug and the plate rib as well as the joint of the covering type plug and the universal horizontal plate are all in sealed continuous
welding seam connection. Reliability and safety of the
metal roof can be improved, daily maintenance of a roof
system can be reduced, operation and maintenance cost of a building is reduced, influence on use of the building is reduced, and
economic benefits are high.