Difference Between Asbestos Siding And Shingles

Best paint for covering asbestos siding.

Difference between asbestos siding and shingles.

Asbestos shingles are relatively strong but. If your siding fits either of these descriptions you should consider having it tested. Everyone is trying to save money today by doing things themselves. Both the epa and the vinyl siding institute recommend not disturbing asbestos if at all possible.

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. The siding was made by combining cement with asbestos which is a naturally occurring mineral that is fibrous in nature and fireproof. Testing your siding for asbestos. Older style cement siding shingles were traditionally made by mixing asbestos into the cement in order to fireproof and strengthen siding.

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. This is an admirable goal but there are potential complications. Difference between latex paint and encapsulants. 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.

Determine when the shingles were installed on your roof. Installing vinyl siding will require disturbing the asbestos by nailing into it. Lead paint wasn t outlawed until 1978 so it s sure to be present on siding going back to the 1950s. If they look old they might have asbestos fibers in them.

The use of asbestos cement roof shingles was growing at a steady rate in the united states. The portland cement binds asbestos fibers into a hard mass. Unless asbestos siding is disturbed it doesn t pose a significant health hazard and does not need to be removed. 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.

Right way to apply paint to asbestos shingles and siding. A brief history of asbestos cement siding. Asbestos cement is a mixture of portland cement reinforced with asbestos fibers. Covering old asbestos shingles with new siding may seem like an option too but it s not easy to do safely.

Asbestos cement was first developed in 1905 by the johns manville company who became one of the premier manufacturers of cement asbestos materials. Asbestos shingles were so common during the 20th century that almost any shingles installed between 1920 and 1986 probably include 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.