Does Cement Board Siding Contain Asbestos

Fiber cement siding is sometimes confused with asbestos cement siding a shingle format type of siding widely used in the first half of the 20th century and which has since been discontinued.

Does cement board siding contain asbestos.

Most older cement board products contain asbestos. Remember asbestos is a problem only if fibers are released to the air. Roofing and siding shingles are among the most common materials to contain asbestos and will readily release fibers into the air if broken. Cement asbestos board siding.

Asbestos cement board siding and shingle. If your siding fits either of these descriptions you should consider having it tested. Complete details about asbestos cement history composition products and hazards are found. And cement asbestos board siding as well as undersheeting.

These materials are known as fiber cement siding and they contain no asbestos. Testing your siding for asbestos. If you suspect that your siding may contain asbestos there is no need for alarm. Asbestos was used to make several exterior materials.

Cement asbestos siding tiles do not need to be removed simply because they contain asbestos. The siding may also contain asbestos if it is old with a wood grain texture to resemble cedar. This patent describing rolled asbestos cement board or shingle siding illustrates the characteristic and popular wood grain like embossed finished surface on these products. Cementitious siding installed after 1973 is very unlikely to contain asbestos.

Hence the safest easiest and least expensive option may be to leave it. Asbestos ranks high on the list of dangerous substances because of its toxic and carcinogenic properties when airborne. Both the epa and the vinyl siding institute recommend not disturbing asbestos if at all possible. There is no legal requirement to do so nor is there significant real estate benefit.

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. While older homes will likely contain asbestos in roofing insulation and tiles it can also be present in exterior siding. Patent 2 818 824 issued january 7 1958. If your siding contains asbestos are you sure you really want to remove it.

Unless cement asbestos board siding is being disturbed it will not release asbestos fibers. Fiber cement siding does not contain asbestos. Asbestos cement roof ing is described just below and cement wallboard and cement siding containing asbestos are described later in this document. Although some of the earlier versions of fiber cement siding did indeed have some asbestos particles blended in fiber cement was actually designed to replace the asbestos siding products to create a safer environment for the installers and the.

Installing vinyl siding will require disturbing the asbestos by nailing into it.