Asbestos Siding And Asphalt Shingles House

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 and asphalt shingles house.

Nonfriable means they cannot be broken up by hand pressure. Lead paint wasn t outlawed until 1978 so it s sure to be present on siding going back to the 1950s. This is the wavy edge asbestos cement shingle siding product. If they look old they might have asbestos fibers in them.

Asbestos shingles are relatively strong but. Let the siding dry then prime and paint with the best exterior latex you can find. Asbestos cement was first developed in 1905 by the johns manville company who became one of the premier manufacturers of cement asbestos materials. The use of asbestos siding shingles was a popular one that was used in the us from the early part of the 20th century until the 1970s.

Work from the top down removing the snails to keep from breaking the asbestos siding. In this photo of a house in new york state we can see both original cement asbestos wall shingles and newer fiber cement replacement wall shingles that do not contain asbestos. Do not throw or drop removed asbestos siding. Determine when the shingles were installed on your roof.

If you don t know the age of the shingles inspect them for wear. Photo guide to cement asbestos wall shingles or siding products. A brief history of asbestos cement siding. Asphalt siding material was made in two common versions one much like asphalt roof shingles but in larger sheets right side of the building photo near the top of this article and the other was comprised of an asphalt coating laminated to hardboard siding material or laminated to a softer wood based insulating board panel often sold as.

Asbestos cement is a mixture of portland cement reinforced with asbestos fibers. Asbestos shingles were so common during the 20th century that almost any shingles installed between 1920 and 1986 probably include asbestos. The portland cement binds asbestos fibers into a hard mass. The siding was made by combining cement with asbestos which is a naturally occurring mineral that is fibrous in nature and fireproof.

State permits are often required of contractors for the removal of asbestos containing asphalt bituminous roofing products and asbestos cement shingles panels under the following conditions. Asbestos shingles and siding on your house you found out that your house is covered in asbestos siding or roofing shingles and they are falling apart. Covering old asbestos shingles with new siding may seem like an option too but it s not easy to do safely.