US Patent 10027276 Photovoltaic mounting system

A two-piece rooftop photovoltaic mounting system. A fixed base portion is attached directly to a roof surface via a lag bolt or other mechanical fastener. A movable portion is attached to and pivots about the base portion providing freedom of movement radially and axially with respect to the base portion. A photovoltaic module coupler is attached to the movable portion to support at least two photovoltaic modules at a location dictated by positioning of the movable portion. A locking nut locks the movable portion to the base portion at the desired location. A sheet of sealant material under the base portion helps prevent ingress of water into the roof surface via the lag bolt.