Testing your siding for asbestos.
Do siding shingles from 1950 have asbestos in them.
Cementitious siding installed after 1973 is very unlikely to contain asbestos.
Homes built between 1920 and the 1960s are likely to contain asbestos in any cementitious siding tiles.
However asbestos fibers can cause serious lung and respiratory problems if inhaled.
These materials are known as fiber cement siding and they contain no asbestos.
Covering old asbestos shingles with new siding may seem like an option too but it s not easy to do safely.
This article gives a history of the production use of asbestos cement roofing siding products.
The east coast is filled with houses sided in these asbestos cement shingles.
These shingles are a fact of life in that area and for houses of the early and mid 20th century.
Lead paint wasn t outlawed until 1978 so it s sure to be present on siding going back to the 1950s.
Asbestos shingles are relatively strong but brittle.
Asbestos containing roofing and siding in good condition are best left alone.
Damaged roofing and siding should be carefully repaired.
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.
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.
It should be remembered that the danger arises once the cement layer starts to disintegrate and the asbestos fibers surface.
It is virtually impossible for anyone but a trained professional with a high powered microscope to tell definitively whether a shingle contains asbestos.
However there are many that have lasted as long as 50 years and are still in good condition.
The siding was made by combining cement with asbestos which is a naturally occurring mineral that is fibrous in nature and fireproof.
Asbestos cement roofing siding history dates codes patents give a history of cement asbestos siding roofing product use.
If you do somehow end up with those shingles remaining on your house we doubt they will affect your sale.
Shingles placed on a roof before the mid 1980s might contain asbestos.
Removing shingles can be safe.
Do not throw or drop removed asbestos siding.
Wrap asbestos siding in 6 mil thick plastic sheeting and secure the plastic with duct tape or place the debris in heavy duty plastic bags.
We include research articles as well as patent citations that help trace the use of asbestos cement in and on buildings from the late 1800 s to the present.
Work from the top down removing the snails to keep from breaking the asbestos siding.
Let the siding dry then prime and paint with the best exterior latex you can find.
Just having asbestos siding and roofing on your home does not pose a hazard to your health.
