Generally, photovoltaic panels are installed on rooftops, with no obstructions on the southeast, south, or southwest sides. They are usually installed facing south, and the specific angle is determined by the design unit through data query in advance. For color steel tiles (zinc iron sheds), the load-bearing capacity needs to be inspected on-site before installation, while general cement roofs can be installed, and uneven roofs can also be fixed and installed using cement brackets.