Composite Roofing Materials

Identification

• Composite roof shingles are usually made of asphalt, although they can also be composed of fiberglass. Organic composite roof shingles have a base made of cellulose fibers, whereas inorganic products have a base made of fiberglass. Because of the difference in composition, inorganic composite roofs receive better fire safety ratings. They also tend to be a bit stronger than organic products, according to This Old House. However, organic roofs perform better in wind and extreme cold and are easier to install.

Cost

• Composition roofing materials are some of the more inexpensive products available on the market. Asphalt shingles cost about $25 to $35 per square foot, which includes a 20 to 30-year warranty, according to This Old House. Including installation, plan to spend about $50 to $100 per square foot, as of the time of publication. Because composition shingles are usually low-maintenance and durable, you don't need to account for future repairs or maintenance costs, particularly if your product comes with a warranty.

Quality

• Composite roofing materials are durable and long-lasting. As noted in "Black & Decker's Complete Guide to Roofing, Siding & Trim," many composite roofing products are also environmentally friendly, if they are made out of recycled materials. Composite shingles are resistant to fire, particularly if they have a fiberglass base, as well as resistant to wind, hail and rotting. They are also lightweight, unlike materials such as clay and cement, and are relatively easy to install. You can walk on composite shingles without worrying about breakage or damage, which is helpful during installation or repair.

Considerations

• Although composite roofing materials provide many advantages over other products, there are a few disadvantages. Although most products come with warranties, they do have a relatively short lifespan when compared with roofing materials such as clay and concrete. Composite materials tend to last longer in cooler climates and are sensitive to heat, according to Roof Help. Rapid changes in temperature may cause problems with algae and fungi. Consult a licensed roof contractor if you are unsure whether composite materials are suitable for your home.