Asphalt shingles are inexpensive and versatile, which probably explains why over 80% of roofs are made of asphalt. They are economical to buy and install, work well with various roof types and pitches, and come in a wide variety of costs, colors, styles and quality. They are relatively easy to cut to size, fit together and attach to the roof and are compatible with various types of flashing and edging. In addition there is no need for any custom accessories for the roof edges, vents or chimney flashing.
There are two major kinds of asphalt shingles: fiberglass and organic mat. They are both made of asphalt. Fiberglass shingles have fiberglass reinforcing mats and organic mat shingles have cellulose fibers mats that originate from wood. Fiberglass shingles are thinner, more lightweight and have better fire ratings. Organic mat shingles are tougher and work better in cold weather. Fiberglass shingles are the more popular choice in the central and southern parts of the country and organic shingles are more common in the north and Canada.
The major disadvantage to asphalt shingles is their life expectancy. The warranties on asphalt shingles are generally for periods of time from 20 to 45 years. However, a warranty term is not always a good indicator how long asphalt shingles will really last. In addition, the warranties do not always cover all of the costs to replace or repair asphalt shingles.
When shopping for asphalt shingles, rather than do a comparison of different warranties, probably the best way to shop for the shingles is to find ones that meet or exceed industry manufacturing standards. The standard ASTMD-3462 that applies to fiberglass asphalt shingles requires the shingles to pass tear strength and nail withdrawal tests. The standard ASTMD-225 is for organic mat shingle. Organic shingles have higher tear strength and nail pull resistance than fiberglass ones. There are shingle manufacturers who have obtained certifications from Underwriters Laboratory.
Shingles that have been certified or passed certain standards are going to cost more. However, keep in mind that installation is also a major cost when it comes to a new roof, or trying to save by purchasing cheap shingles is usually not worth it.
Asphalt shingles today come in a wide array of colors and designs. The old 3 tab shingles are still around, but there are other alternatives available now as well including architectural shingles that have patterns to resemble slate, ceramic and wood shingles. Architectural shingles tend to be easier to lay than the 3-table shingles due to their random patterns. When laying 3 tab shingles you need to be certain that you are lining up the tabs correctly so that roof doesn’t end up with a haphazard and wavy look. The patterns on the surface of the architectural shingles mask the shape of the shingle and gives it a artistic look. Because they are easier to lay, it does save on installation time which can help to offset part of the cost of the more expensive asphalt shingles.
Asphalt shingles can be a great aesthetic as well as economical choice when it comes time to replace your roof. With all the various colors and style, they can work complement and work well with most roof pitches and house styles. When it comes to choosing asphalt shingles don’t skimp on quality. The higher grade shingles are worth the extra cost in the long run.
