The solar mounting systems and brackets are designed according to Trapezoid Sheet Metal Roof. Special extruded aluminum rail, tilt-in module, clamp kit and various roof hooks can be highly pre-assembled and make the installation easy and quick to save your labor cost and time mostly. Customized length could keep the high anti-corrosive performance, structure strength. We will also pre-assembly the parts of the roof mounting system before shipment. You can directly install the roof mounting system without secondary installation!