How Much Asbestos Is In Cement Siding

Older style cement siding shingles were traditionally made by mixing asbestos into the cement in order to fireproof and strengthen siding.

How much asbestos is in cement siding.

Asbestos siding was made by adding asbestos a naturally occurring mineral to portland cement. Asbestos cement adhesive bonds bricks it is rigid and has a less chance of discharging fibers into the air. It s often considered hazardous waste even if there s only a very small amount of asbestos in the materials whether it s siding or something else. It often only takes 1 asbestos in the materials for it to be considered hazardous waste.

It s available in a variety of sizes and shapes to match many of the old siding shingles installed over the last 60 years. According to merriam webster asbestos cement is. Asbestos siding was very commonly used in buildings and homes from around the 1920s until the 1980s and can still be found in many older homes in the u s. Asbestos cement roofing siding history dates codes patents give a history of cement asbestos siding roofing product use.

Read to learn more about it. Any material on houses built following 1989 is more unlikely to contain asbestos and if it does it only may contain 1 percent of it pursuant to international guidelines. What is asbestos cement siding. Homes built between 1920 and the 1960s are likely to contain asbestos in any cementitious siding tiles.

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. 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 contining later in some other countries. Quality windows siding and doors since 1976 1 866 4feldco. Cementitious siding installed after 1973 is very unlikely to contain asbestos.

As the experts at asbestos siding note it is sometimes difficult to spot because it was often manufactured to resemble different types of siding in a variety of colors and textures. 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. These materials are known as fiber cement siding and they contain no asbestos.