Asbestos cement can be dangerous if pulverized by sawing sanding breaking etc.
Asbestos cement board siding.
Patent 2 818 824 issued january 7 1958.
According to merriam webster asbestos cement is.
Remember asbestos is a problem only if fibers are released to the air.
Sometimes it is possible to work around asbestos without removing it.
It is available in a variety of sizes and shapes to match many of the old siding shingles installed over the last 60 years.
Asbestos cement board siding and shingle.
The use of a pressure washer for maintenance can crack the siding and lead to moisture intrusion if the pressure setting is high enough.
Exposure to and breathing asbestos fibers can result in lung problems and cancer.
A hardened mixture of asbestos fibers portland cement and water used in relatively thin slabs for shingles wallboard and siding asbestos siding was first introduced into the us in the early 1900 s by austrian engineer ludwid hatschek.
It is very brittle and has a tendency to crack and break when nailed which can release asbestos fibers into both the air and ground.
He discovered how asbestos could help reinforce thin shingles made from cement.
Asbestos cement siding is very brittle and can be easily chipped cracked or broken.
Unless cement asbestos board siding is being disturbed it will not release asbestos fibers.
Asbestos cement can be dangerous if pulverized by sawing sanding breaking etc.
About asbestos siding asbestos siding is composed of asbestos fibers mixed with portland cement.
Asbestos cement siding is very brittle and can be easily chipped cracked or broken.
Cementious siding and roofing such as fiber cement siding lap siding and fiber cement roof shingles containing asbestos may then have appeared on homes constructed between 1906 and 1980 in north america and continuing later in some other countries.
Hence the safest easiest and least expensive option may be to leave it alone.
This patent describing rolled asbestos cement board or shingle siding illustrates the characteristic and popular wood grain like embossed finished surface on these products.
Weatherside fiber cement siding is the one and weatherside fiber cement siding is the one and only solution for replacing or repairing old asbestos siding shingles.