Does Asphalt Siding Have Asbestos In It

Most homes have asphalt shingles and asbestos is more common in asphalt shingles.

Does asphalt siding have asbestos in it.

Below is an example. Not sure if the old asphalt siding has asbestos. Look to see what kind of shingles you have. The portland cement binds asbestos fibers into a hard mass.

While older homes will likely contain asbestos in roofing insulation and tiles it can also be present in exterior siding. Asphalt or cement roofing and siding that contain asbestos when intact and in good condition are generally considered nonfriable and are not hazardous. Asbestos siding is composed of asbestos fibers mixed with portland cement. Do you know the fancy name they gave this style of siding.

These shingles are generally 12 by 24 inches and the bottom tends to have a wave like pattern though that is not always the case. It is very difficult to remove spray paint graffiti without also dissolving or discoloring some of the siding surface coating material itself. Asbestos cement is a mixture of portland cement reinforced with asbestos fibers. The siding may also contain asbestos if it is old with a wood grain texture to resemble cedar.

Roofing adhesives roofing felt and base flashing also might include 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. A brief history of asbestos cement siding. If you suspect that your siding may contain asbestos there is no need for alarm.

Nonfriable means they cannot be broken up by hand pressure. Testing your siding for asbestos. Asbestos ranks high on the list of dangerous substances because of its toxic and carcinogenic properties when airborne. If your siding fits either of these descriptions you should consider having it tested.

Either treat the material as presumed to contain asbestos or have a sample tested. Siding asphalt shingle or sheet shows both asphalt based and asphalt combined with fiberboard based mineral granule covered shingle siding in various forms. It is very brittle and has a tendency to crack and break when nailed which can release asbestos fibers into both the air and ground. Some asphalt roof shingle products and therefore quite possibly some asphalt siding products did indeed contain asbestos fibers in their substrate or coating.