Asphalt Shingle Roofing
Behind the familiar look is a layered construction, and that is worth keeping in mind. A shingle that has lost its granules is losing its sunscreen, and bare patches show up as dark spots.
A three-tab shingle has a flat, uniform look and the thinnest profile of any common type, and fewer new roofs use it today. The extra layer adds weight and strength, and the cut pattern breaks up the lines, and the thicker body stands up better to sun. Premium and luxury lines go further, with thicker laminates, deeper shadow lines and designer shapes, and the added weight is a benefit in wind.
