Homeowners opt to hire Northern Virginia roofing experts such as Roof Masters to install asphalt roofing shingles, which are primarily coveted for their composition, and diversity of style and shades. An article on Best Pick Reports gives a detailed description of the composition of asphalt shingles, provided below: Essentially, an asphalt shingle is a rectangular piece of material called a mat that is coated with layers of asphalt and embedded with ceramic granules. The mat gives the shingles their strength to resist breaking or tearing. In the past, asphalt shingles came in two varieties: organic and fiberglass. Due to high failure rates among organic shingles, however, they are now rarely used. Fiberglass shingles use a fiberglass mat as their reinforcement, which was developed in order to replace older, asbestos-based mats.
http://www.leakproofroof.net/info-article/common-types-of-asphalt-shingles-for-northern-virginia-roofing-systems/
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