MaterialsAsphalt shingles are by far the most popular roofing materials. 90% of all roofs in Canada are covered in asphalt. Asphalt roofing materials come in two basic forms (rolls and shingles), many different colors, a variety of shapes, and varying thicknesses. Asphalt shingles are described as 25 year of 30 year shingles, and this refers to the length of time the shingles are covered by the manufacturer's limited warranty.
Generally, the longer the warranty an asphalt shingle has, the thicker and heavier the shingle will be the remaining 10% of the roofing market is divided among all the other alternatives. These roughly are split into traditional materials (like slate, clay tile, sheet metal and wood shake) and new roofing alternatives (like solar energy shingles, high tech polymer membranes, spray on foam and green/grass roofs.)
The motivation for purchasing traditional materials is generally to retain the original appearance and design integrity of and older home, or to give a newer home a very traditional design element. New roofing materials are generally purchased to conserve energy, generate energy or to reduce costs.