Asbestos Roof Material

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Asbestos roof material. Regardless of roof style almost all petroleum based roofing materials once contained deadly asbestos fibers. The use of asbestos cement roof shingles was growing at a steady rate in the united states. Asphalt tar paper this is probably the most prevalent acm asbestos containing material found when doing remodels for roofing projects. It is made of a mix of cement and asbestos fibers and as the majority of the materials which contain asbestos it is only dangerous when damaged and in poor condition.

Flat roofs often chose tar with gravel stones while pitched roofs used layered asphalt shingles. History of asbestos in roofing roofing materials widely varied as well. Found as an underlayment for both pitched and flat roofing. It was one of the most used types of asbestos containing material for roof building mainly as an underlayment.

Letters and guidance from the applicability determination index that clarify how the asbestos neshap applies to the removal of asbestos containing roofing material. It is black and pretty difficult to remove. See epa s about pdf page to learn more. In the early 1920s american roofing material manufacturers johns mansville carey eternit and century were all offering at least one asbestos cement roofing shingle to their customers.