Does Fiber Cement Siding Contain Asbestos

While older homes will likely contain asbestos in roofing insulation and tiles it can also be present in exterior siding.

Does fiber cement siding contain asbestos. If you suspect that your siding may contain asbestos there is no need for alarm. Fiber cement siding does not contain asbestos. Soakers were used over joints and at corners. Despite its many benefits fiber cement siding comes with its share of problems ranging from adverse.

Testing your siding for asbestos. Fiber cement siding is made from a blend of cement silica sand wood fiber and other ingredients making it a siding option that is known for durability and strength. These patents assigned to flintkote give more details of the history and constituents of flintkote insulating sheathing. Waterproof board and method of preparing same u s.

There is no legal requirement to do so nor is there significant real estate benefit. Cementitious siding installed after 1973 is very unlikely to 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. The siding may also contain asbestos if it is old with a wood grain texture to resemble cedar.

Asbestos cement planks asbestos cement planks made in new zealand were readily available during the 1970s. These materials are known as fiber cement siding and they contain no asbestos. 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 home s residents. They were installed as overlapping units directly to the framing.

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. Patent 1 793 810 issued february 24 1931. They were considered a lower cost utilitarian cladding. The company prodcued roofing products containing asbestos and also asbestos cement shingle siding.

Most fiber cement products come with a warranty of up to 50 years thanks to a natural resistance to fire termites and rot. If your siding fits either of these descriptions you should consider having it tested. Because fiber cement siding manufactured in north america after around 1978 was made without using asbestos in those later products and because those non asbestos fiber cement shingles included products that by eye were an exact visual match for their older asbestos containing brothers and sisters already installed a building built. Cement asbestos siding tiles do not need to be removed simply because they contain asbestos.

Fiber cement siding was manufactured as a replacement for asbestos siding which was popular for its attributes of being fire retardant and rot and insect proof. Planks were up to 5 m long and became available with a wood grain finish.