Mounts (also referred to as L-feet, standoffs or hangerbolt ) connect solar rails to the roofing structure below the roof tiles and plywood decking. For example , L-feet brackets are used in conjunction with what appear to be roof or tile hooks and flashing to fasten the rails to the rafters. Shingle flashing is sheet metal that cradles a mount and slides nimbly beneath the roofing surface. Some t...