The invention relates to the technical field of
building construction, and particularly discloses a layer-by-layer wavy
metal roof and a construction method thereof.The layer-by-layer wavy
metal roof comprises a main steel structure and main purlins, and the
metal roof comprises a steel bottom plate; according to the stainless steel roof board, after stainless steel is continuously welded, the concealed installation design of a 360-degree meshing
system without surface perforation and puncture is carried out, through a continuous
welding method, the integrity of the roof board is enhanced, the
structural rigidity is improved, and first integral waterproof is achieved; a second weatherproof barrier is formed under tight mechanical
occlusion, structural strength and dynamic protection are provided, a mounting design without puncture and perforation on the surface is formed, perforation leakage points are thoroughly eliminated, the
water leakage problem caused by
fastener hole sealing aging, loosening or construction errors is fundamentally solved, the durability is greatly improved, and the service life of the
fastener is prolonged. The service life is far longer than that of a traditional fixing mode, and the device is particularly suitable for public buildings with high requirements for
water resistance, wind resistance, durability and aesthetics.