Why use flat roof solar mounting system . lat roof solar panel systems are actually more flexible in their design than sloped rooftop installations, making it easier to get the most out of your panels. This is why these systems are popular in industrial applications. Solar rooftop system series provides many different designs such as the double-row or single-row tripod supports, the flat roof solar system, the standing seam metal roof kits, etc. These systems are specially designed to fit different types of flat roof solar mount and they can be installed on various kinds of rooftops including the slate roof, tile roof, metal roof, and flat roof.