As for the traditional profiled metal plate roof, its backward fixing method determines its insufficient wind resistance. For example, if the roof panel is fixed by screw penetration, the contact area between the screw cap and the roof panel is very small. When encountering strong winds, due to repeated positive and negative wind pressure, the roof panels will produce stress concentration at the nail holes, leading to tearing. While the screws remained in the purlins, the roof panels had been blown off. The roofing system used by Tengwei Caigang YX65-420 aluminum magnesium manganese alloy profiled plate is fundamentally different from the traditional plate construction in the fixing method. It uses high-strength aluminum alloy fixing seats and purlins to fix, and then the roof panels are stuck in place. The plum blossom head of the base is then used to lock the plate ribs on the fixed base with an electric edge locking machine. This fixing method does not need to penetrate the plate surface, so there is no damage to the roof panel, and of course there will be no problem of stress concentration. This system has been subjected to wind resistance tests by authoritative domestic testing institutions. In the repeated load test of 7.0KPa, the test pieces (including roof panels, fixed seats, screws) were not damaged, which proves the superior wind resistance of this roof system. sex. YX65-420 aluminum alloy hammered straight roof panel has upright ribs, making its drainage section almost unaffected by the ribs. The effective drainage section is larger than that of ordinary panels, and the ribs of this type of panel are up to 65mm, which can ensure that the roof panel It has waterproof performance in the case of transverse tilt (hyperbolic roof), and is more adaptable to ultra-long roofs with gentle slopes.