US Patent 7735287 Roofing panels and roofing system employing the same

A roofing system comprising a plurality of roofing panels each having a bottom surface and a top surface, opposite upper and lower edges and opposite lateral edges. The top surface of each roofing panel has the appearance of a plurality of individual shingles. The roofing panels are adapted for sliding engagement with each other along their opposite upper and lower edges and opposite lateral edges when positioned vertically and horizontally adjacent.