Photovoltaic mounting systems (also called solar module racking) are used to fix solar panels on surfaces like roofs, building facades, or the ground. Solar panels can't be put on a roof without first having mounting brackets installed. The essential components of a solar racking system include flashings, mounts, rails, and clamps. The top solar panel racking brands include SnapNrack, Unirac, IronRidge, Quick. Solar racking is the structural framework that secures PV modules and transfers wind, snow, and dead loads into the roof or ground beneath.