Cement Asbestos Board Siding

Asbestos cement can be dangerous if pulverized by sawing sanding breaking etc.

Cement asbestos board siding.

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 s available in a variety of sizes and shapes to match many of the old siding shingles installed over the last 60 years. Weatherside fiber cement siding is the 1 and weatherside fiber cement siding is the 1 and only solution for replacing or repairing old asbestos siding shingles. Click to enlarge any image read clinton i and francis h.

Dnrec aqm has available two other guides in this series spray on pop corn ceiling and sheet vinyl flooring with asbestos backing. Unless cement asbestos board siding is being disturbed it will not release asbestos fibers. According to merriam webster asbestos cement is. Asbestos siding is composed of asbestos fibers mixed with portland cement.

Exposure to and breathing asbestos fibers can result in lung problems and cancer. Fiber cement siding is a building material used to cover the exterior of a building in both commercial and domestic applications. Fiber cement board may come pre painted or pre stained or can be done so after its installation. 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.

Weatherside fiber cement siding is the 1 and weatherside fiber cement siding is the 1 and only solution for replacing or repairing old asbestos siding shingles. The use of a pressure washer for maintenance can crack the siding and lead to moisture intrusion if the pressure setting is high enough. Fiber cement is a composite material made of cement reinforced with cellulose fibers. Asbestos cement board siding and shingle.

It s available in a variety of sizes and shapes to match many of the old siding shingles installed over the last 60 years. For more information contact dnrec aqm. He discovered how asbestos could help reinforce thin shingles made from cement. 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.

Patent 2 818 824 issued january 7 1958. Sometimes it is possible to work around asbestos without removing it. Hence the safest easiest and least expensive option may be to leave it alone. However if asbestos containing siding must be.

This publication is limited to the removal of cement asbestos board siding one of the three most common asbestos abatement projects attempted by homeowners. Remember asbestos is a problem only if fibers are released to the air. Asbestos cement siding is very brittle and can be easily chipped cracked or broken.