Asphalt shingles are the most popular housing roofing
material in America, and for good reason. They are the least expensive and are
relatively easy to install. An asphalt shingle roof can last anywhere from 15
to 50 years. The compositional factors that affect life expectancy of asphalt shingles
include:
Shingle weight: The heavier the shingle is, the longer the
life expectancy
Shingle composition: Shingle styles that mimic more
expensive roofing styles, such as natural slate or wood shake, also add durability
because of the higher-quality materials used. Premium shingles may also offer
improved impact resistance or solar reflectivity, increasing longevity.
