The application relates to the technical field of
building construction, and particularly discloses a layer-by-layer wavy
metal roof and a construction method thereof, which comprises a main steel structure and a main
purlin, and the
metal roof comprises a steel bottom plate; a stainless steel roof panel is continuously welded with stainless steel, and then a 360-degree
occlusion system is adopted; the surface is designed in a concealed installation mode without perforation and puncture; the method of continuous
welding is adopted to enhance the integrity of the roof panel, improve the
structural rigidity, realize the first overall
waterproofing, and then form the second wind and rain barrier through the 360-degree
occlusion system under the close mechanical
occlusion, provide the structural strength and dynamic protection, form the installation design without puncture and perforation on the surface, completely eliminate the perforation leakage points, solve the leakage problem caused by the aging, loosening or construction error of the
fastener hole sealing from the root, greatly improve the durability, and have a service life far longer than that of the traditional fixing mode, and the application is especially suitable for public buildings with high requirements for
waterproofing, wind resistance, durability and aesthetics.