Pros and Cons of Asphalt Shingles
Asphalt shingles are by far and away the most popular type of roofing material. Because they are budget-friendly, lightweight, durable, and come in a variety of styles, four out of five homes in the United States have asphalt shingles.
Depending on how long you plan to stay at the same home, the longevity of an asphalt shingle roof makes them a less appealing investment. This post provides the specifics on their endurance:
As the most common roofing material in the country, most of us are familiar with asphalt roofing and many of its benefits and drawbacks. Since it is often far less expensive than other roofing materials, it is almost expected that it will have a shorter lifespan. Depending on the quality of the shingle, you can expect an asphalt roof to remain in good shape for 15 or 20 years. It is considered a relatively low-maintenance material, but that doesn’t mean that once it is up you can completely forget about it!
See more here: Ask the Pros: How To Make A Roof Last Longer
How They’re Made
Part of the reason asphalt shingles don’t last as long is because of their composition. They are also known as composite shingles, meaning they are made of a variety of materials that tend to be easily damaged by hail or heat.
However, the thicker the shingles are manufactured, the more durable they become. This video shows the process of how asphalt shingles are made:
Besides the narrator’s mispronunciation of the word “asphalt”, it is a good demonstration of how the process works. As mentioned, the thicker the outer coating, the more durable the shingles. However, I don’t think a lifetime warranty that was mentioned in the video is normal with composite shingles.
Advances In Asphalt Shingles
The history of asphalt shingles goes back to Ancient Babylonia where it was used as a waterproofing liner in canals. As far as roofing, it has been used in the U.S. since 1893, but it came in rolls of long strips of asphalt-coated felt with a finishing layer of finely crushed stone.
Manufacturers are using inorganic materials as a way to create a safer product, as discussed below:
Since the late 1950s, manufacturers have sought to develop inorganic base materials as alternatives to the traditional organic felt. Inorganic bases are desirable because they are more fire resistant than an organic base; furthermore, they absorb less asphalt during the manufacturing process, so the resulting shingles weigh less. Asbestos was used in shingle mats until its related health risks became well known. Improvements in fiber-glass matting have made them the most popular asphalt shingle base material in the industry since the late 1970s.
See the original post here: How shingle is made
Most building codes today require that asphalt shingles be used on a roof pitch of 4:12 or greater. This is because they are more susceptible to moisture issues such as mold and mildew growth, so the slope allows the water to run off.
No special tools, skills, or prep work is required during the installation, so a typical composition shingles roof can be installed in a matter of days. Since most people aren’t all that comfortable up on a roof, the best bet is to call a contractor for residential and commercial roofing Denver for a free estimate.