Asbestos Asphalt Shingle Siding

It is very difficult to remove spray paint graffiti without also dissolving or discoloring some of the siding surface coating material itself.

Asbestos asphalt shingle siding.

The building shown at left located in hughsonville ny using the thatch edged shingle siding style is almost certainly sided with asbestos cement shingles. Asbestos was used in asphalt based roofing products such as asphalt roofing or siding shingles in north america as early as 1891 and continued into the early 1980 s. If they look old they might have asbestos fibers in them. Asbestos shingles were so common during the 20th century that almost any shingles installed between 1920 and 1986 probably include asbestos.

You can t drive screws and nails through them without pre drilling. From the 1940 s to perhaps the early 1970 s it was popular to cover peeling wood clapboard buildings with this durable material. If you don t know the age of the shingles inspect them for wear. Asbestos shingles are relatively strong but brittle.

Originally asbestos siding was used because of the fire resistant properties of asbestos. Some asphalt siding may contain asbestos in the asphalt impregnated felt backer or asbestos may also be in the asphalt impregnated paper tar paper or felt used as a house wrap under the siding. Because asbestos in a mineral and fibrous adding asbestos to siding materials also increases strength and durability while providing some insulation and fireproofing to the structure. Determine when the shingles were installed on your roof.