About Asbestos Content And Why Asbestos Shingles Must Be Removed From Your House

Posted on October 20th, 2011
Most houses in the United States use shingles for their roofs. Even though not as common any longer, one of the kinds that are still used for roofs is Asbestos shingles.

Asbestos shingles, like most shingles, come in an excellent variety of styles, colours, and measurements, in order to be used in as many different types of house as possible. There are a couple of manufacturers of asbestos shingles, although they're number is decreasing as a result of decrease in popularity of this kind of shingles.

Contrary to what most individuals believe, asbestos shingles are not completely made of asbestos and they don't essentially signify a health hazard. The truth is, asbestos shingles' core is made from a mineral fiber and cement, with some asbestos content. The proportions of this mix vary greatly from manufacturer to manufacturer and from one sort of shingles to the other. The asbestos content usually doesn't represent more than 1/3 or the composition, having percentages that go from 5% to 35%. Moreover, it is very hard for the asbestos in these shingles to become airborne, because they are covered with a layer of mineral fibers and cement mixtures. It requires abuse of the material or an incredibly superior state of decomposition for the asbestos in asbestos shingles to become a health hazard. That's why they require proper care and handling.

Because asbestos shingles become damaged, it's necessary to replace them. It's essential to check to what degree asbestos was utilized in the roof, as asbestos has been used for other roofing applications, similar to insulation. If that's the case, it's better to replace the entire roof immediately, and not just some asbestos shingles. Also, it's vital that a professional takes care of the repairs, preferably one that's sponsored by the company that sold the asbestos shingles. Additionally, old asbestos shingles which are changed should be disposed of based on the laws and regulations of the location.

Although asbestos shingles are losing their reputation fast, they were very useful in their time. They were malleable compared to wood and stone. And they had the best endurance and resistance to weather conditions, water, bugs and fire. At first, they were simply dark colored, but new techniques allowed manufacturers to come up with different colors.

With the development of latest methods, asbestos shingles would ultimately disappear. However, they set a standard in malleability and resistance that new materials needed to match. Fiberglass in special is the most common replacement for asbestos shingles. Whether fiberglass would be replaced by solar shingles remains to be unknown.

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