Does Asphalt Shingle Siding Contain Asbestos

If you don t know the age of the shingles inspect them for wear.

Does asphalt shingle siding contain 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. This document provides a photo guide and text for the identification of asbestos containing wall siding products like asphalt shingles asbestos cement siding shingles. Determine when the shingles were installed on your roof.

The siding may also contain asbestos if it is old with a wood grain texture to resemble cedar. 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. Roof shingles even if the material contained asbestos which it might are rarely the only nor even the principal source of problem levels of asbestos fibers in a building and i. It is acknowledged by the asphalt shingle manufacturers that between 1963 and the mid 1970s some manufacturers did use asbestos in the fiber mat of shingles.

Asbestos shingles were so common during the 20th century that almost any shingles installed between 1920 and 1986 probably include asbestos. Asphalt or cement roofing and siding that contain asbestos when intact and in good condition are generally considered nonfriable and are not hazardous. Testing your siding for asbestos. Asbestos containing building siding identification history.

If they look old they might have asbestos fibers in them.