The most common composition shingle is the 30 year dimensional shingle. This shingle is also referred to as the laminated shingle or the architectural shingle. It carries a 30 year warranty and is distinguishable from the 20 year shingle by its thicker, heavier look which was designed to imitate the appearance of wood shingles and offer more aesthetic pleasure. The laminated shingle also comes in 40 and 50 year versions which are each slightly thicker than the 30 year shingle but are otherwise exactly the same in appearance. |