Does Asphalt Siding Have Asbestos

Roofing adhesives roofing felt and base flashing also might include asbestos.

Does asphalt siding have asbestos. Some asphalt roof shingle products and therefore quite possibly some asphalt siding products did indeed contain asbestos fibers in their substrate or coating. Asbestos ranks high on the list of dangerous substances because of its toxic and carcinogenic properties when airborne. Asphalt or cement roofing and siding that contain asbestos when intact and in good condition are generally considered nonfriable and are not hazardous. The siding may also contain asbestos if it is old with a wood grain texture to resemble cedar.

While older homes will likely contain asbestos in roofing insulation and tiles it can also be present in exterior siding. Asbestos siding is composed of asbestos fibers mixed with portland cement. Corrugated cement panels were used for a short period of time as they break quite easily. Paper like vapor barriers can present more of a hazard since they are considered friable.

Asphalt shingles usually contain small amounts of asbestos. Their width can range from 12 to 48 inches. Look to see what kind of shingles you have. Generally the product is made from wood fibers not asbestos see the insulating board msds data sheet quotations in the faq discussion just above.

Penndot says the asbestos containing asphalt is considered residual waste and contractors cannot reuse any excavated or milled asbestos containing bituminous material. This type of roofing material can have various colors from different shades of grey to red green and even blue. 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. It is very difficult to remove spray paint graffiti without also dissolving or discoloring some of the siding surface coating material itself.

They must secure an approved. 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. Testing your siding for asbestos if your siding fits either of these descriptions you should consider having it tested. Nonfriable means they cannot be broken up by hand pressure.

If you suspect that your siding may contain asbestos there is no need for alarm.