Do Asphalt Siding Shingles Contain Asbestos

The siding may also contain asbestos if it is old with a wood grain texture to resemble cedar.

Do asphalt siding shingles contain asbestos.

It comes in the form of fiber and has a high fire retardant property which serves as a good reinforcement for concrete. 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. The national emissions standards for hazardous air pollutants neshap identifies several asphalt containing roofing products that may also contain asbestos including. Most homes have asphalt shingles and asbestos is more common in asphalt shingles.

Look to see what kind of shingles you have. Asphalt containing base flashings in reality while asbestos was commonly used in many asphalt roofing materials asbestos was rarely used in the shingles themselves. 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. Roofing adhesives roofing felt and base flashing also might include asbestos.

They would not warp or rot and were resistant to damage caused by insects. 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. Asbestos is a popular material that has been used to reinforce concrete shingles. Testing your siding for asbestos if your siding fits either of these descriptions you should consider having it tested.