US Patent 9140012 Roofing shingle system and shingles for use therein

A laminated roofing shingle is disclosed comprising a posterior layer with simulated tabs and an anterior layer with tabs spaced apart by openings, wherein each posterior simulated tab is partially covered by a corresponding anterior tab, wherein at least one anterior tab has a first anterior tab breadth and at least another anterior tab has a second anterior tab breadth, and wherein at least one anterior opening has a first anterior opening breadth that is about equal to the second anterior tab breadth and wherein at least another anterior opening has a second anterior opening breadth that is about equal to the first anterior tab breadth. Also disclosed is a roofing system comprising a plurality of courses of the shingle.