Asbestos cement board siding and shingle.
Does cement board siding contain asbestos.
Cement asbestos board siding.
Most older cement board products 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.
Complete details about asbestos cement history composition products and hazards are found.
If your siding fits either of these descriptions you should consider having it tested.
Asbestos was used to make several exterior materials.
Patent 2 818 824 issued january 7 1958.
Cement asbestos siding tiles do not need to be removed simply because they contain asbestos.
Roofing and siding shingles are among the most common materials to contain asbestos and will readily release fibers into the air if broken.
This patent describing rolled asbestos cement board or shingle siding illustrates the characteristic and popular wood grain like embossed finished surface on these products.
Unless cement asbestos board siding is being disturbed it will not release asbestos fibers.
If you suspect that your siding may contain asbestos there is no need for alarm.
Testing your siding for asbestos.
Installing vinyl siding will require disturbing the asbestos by nailing into it.
Fiber cement siding does not contain asbestos.
Asbestos ranks high on the list of dangerous substances because of its toxic and carcinogenic properties when airborne.
And cement asbestos board siding as well as undersheeting.
Cementitious siding installed after 1973 is very unlikely to contain asbestos.
These materials are known as fiber cement siding and they contain no asbestos.
There is no legal requirement to do so nor is there significant real estate benefit.
Both the epa and the vinyl siding institute recommend not disturbing asbestos if at all possible.
Asbestos was also put into cement used on the exterior of buildings to help insulate the.
If your siding contains asbestos are you sure you really want to remove it.
While older homes will likely contain asbestos in roofing insulation and tiles it can also be present in exterior siding.
Asbestos cement roof ing is described just below and cement wallboard and cement siding containing asbestos are described later in this document.
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.
Unless asbestos siding is disturbed it doesn t pose a significant health hazard and does not need to be removed.
Remember asbestos is a problem only if fibers are released to the air.
The siding may also contain asbestos if it is old with a wood grain texture to resemble cedar.
