What are the differences between 3-Tab and Dimensional shingles?
Both 3-tab and dimensional shingles are made from asphalt, the same material on which we all drive. A 3-tab shingle is named for the three “tabs” you see when you look at a shingle. A 3-tab shingle, while perfectly serviceable and a great choice for your roof, gives the roof a distinctive “flat” look. In the 1970’s, dimensional shingles were developed for the high-end home market, using additional layers of asphalt material to give the roof an appearance more like cedar shakes.