Rooftop solar panels can be installed on a flat roof, but the setup is different from pitched roofs. Flat roofs typically use mounting frames or ballast systems to tilt the panels toward the sun. This helps improve energy output and prevents water pooling around the panels. The exact angle and layout depend on the roof’s size, any shading, and the building’s structure. Because flat roofs often have more open space, they can sometimes accommodate more panels than a pitched roof of similar size.
Before installation, a structural assessment is usually needed to confirm the roof can support the weight of the panels and mounting equipment. You also need to consider access for maintenance and any planning rules that apply in your area. An installer will check the roof surface, waterproofing, and any existing equipment such as vents or skylights. With the right design, a flat roof can be a practical and effective place for solar panels.
