Difference Between Asbestos Siding And Shingles

If your siding fits either of these descriptions you should consider having it tested.

Difference between asbestos siding and shingles.

The portland cement binds asbestos fibers into a hard mass. Everyone is trying to save money today by doing things themselves. Right way to apply paint to asbestos shingles and siding. Determine when the shingles were installed on your roof.

If they look old they might have asbestos fibers in them. The use of asbestos siding shingles was a popular one that was used in the us from the early part of the 20th century until the 1970s. If you don t know the age of the shingles inspect them for wear. This is an admirable goal but there are potential complications.

Covering old asbestos shingles with new siding may seem like an option too but it s not easy to do safely. Let the siding dry then prime and paint with the best exterior latex you can find. 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. 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.

Asbestos shingles are relatively strong but. Lead paint wasn t outlawed until 1978 so it s sure to be present on siding going back to the 1950s. Asbestos cement was first developed in 1905 by the johns manville company who became one of the premier manufacturers of cement asbestos materials. The siding was made by combining cement with asbestos which is a naturally occurring mineral that is fibrous in nature and fireproof.

Asbestos shingles were so common during the 20th century that almost any shingles installed between 1920 and 1986 probably include asbestos. Unless asbestos siding is disturbed it doesn t pose a significant health hazard and does not need to be removed. The siding may also contain asbestos if it is old with a wood grain texture to resemble cedar. The use of asbestos cement roof shingles was growing at a steady rate in the united states.

Both the epa and the vinyl siding institute recommend not disturbing asbestos if at all possible. Difference between latex paint and encapsulants. Testing your siding for asbestos. Best paint for covering asbestos siding.

A brief history of asbestos cement siding. In the early 1920s american roofing material manufacturers johns mansville carey eternit and century were all offering at least one asbestos cement roofing shingle to their customers. 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.