Asbestos Old House Siding Types
The types of asbestos used may vary chrysotile is normally always present but crocidolite and amosite asbestos grunerite were also added to many products.
Asbestos old house siding types. Most likely the shingles are in two sizes 12 inch or 24 inch. Lead paint wasn t outlawed until 1978 so it s sure to be present on siding going back to the 1950s. Older style cement siding shingles were traditionally made by mixing asbestos into the cement in order to fireproof and strengthen siding. The surfaces of siding produced in the 1920s and early 1930s were smooth.
The bottom of an asbestos siding tile may have a wave like pattern though not always. Let the siding dry then prime and paint with the best exterior latex you can find. When is asbestos in a home dangerous. Homes built between 1920 and the 1960s are likely to contain asbestos in any cementitious siding tiles.
If your house was built around or prior to the late 70 s has the original siding and seems to be made of cement it is probably asbestos siding. 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. Old asbestos siding tiles may also have a wood grain texture like cedar. Nonfriable means they cannot be broken up by hand pressure.
Some forms of paint. This article provides a photo guide to and list of asbestos containing products materials and links to detailed articles about individual asbestos containing products materials found in buildings and in a wide range of products used in both home and industry. We include photographs of a very wide range of examples of asbestos containing products materials. Asbestos shingles are relatively strong but.
Siding made of asbestos cement was another popular building material. Cementitious siding installed after 1973 is very unlikely to contain asbestos. This is the most common pattern used. Covering old asbestos shingles with new siding may seem like an option too but it s not easy to do safely.
Asphalt or cement roofing and siding that contain asbestos when intact and in good condition are generally considered nonfriable and are not hazardous. These materials are known as fiber cement siding and they contain no asbestos. The mere presence of asbestos in your home is not hazardous. Efflorescence chalking can commonly be seen on asbestos siding.
Fiber cement siding usually 1 8 thick and 8 x4 brittle corrugated heavy duty 8 x4 panels. Asbestos product photo guide.