Ballasted Flat Roof Solar Panel Roof Mounting Systems Brackets Structure Solar Mounting System, Aluminum solar panel mount structure, solar panel mount ballasted mount on the flat roof and open field Aluminum ballasted mounting system is designed with great flexibility both for the residential and commercial flat roof solar system. It is small and lightweight to the roof sheet. All of our Aluminum profiles are made 6005 T5 with surface protection anodic oxidation 65-80 micron