It is noted that samples of built up roofing roofing mastics roofing felts and other asphalt roofing products other than shingles have been shown to contain asbestos.
Asphalt siding contain asbestos.
However asbestos fibers can cause serious lung and respiratory problems if inhaled.
Some asphalt siding may contain asbestos in the asphalt impregnated felt backer or asbestos may also be in the asphalt impregnated paper tar paper or felt used as a house wrap under the siding.
Some asphalt roof shingle products and therefore quite possibly some asphalt siding products did indeed contain asbestos fibers in their substrate or coating.
Asbestos ranks high on the list of dangerous substances because of its toxic and carcinogenic properties when airborne.
Roof shingles even if the material contained asbestos which it might are rarely the only nor even the principal source of problem levels of asbestos fibers in a building and i.
If your siding fits either of these descriptions you should consider having it tested.
In addition many older asphalt tiles manufactured between the 1920s and 1960s contain asbestos filler fibers.
If you suspect that your siding may contain asbestos there is no need for alarm.
It is virtually impossible for anyone but a trained professional with a high powered microscope to tell definitively whether a shingle contains asbestos.
While older homes will likely contain asbestos in roofing insulation and tiles it can also be present in exterior siding.
Nonfriable means they cannot be broken up by hand pressure.
There is no legal requirement to do so nor is there significant real estate benefit.
Asphalt or cement roofing and siding that contain asbestos when intact and in good condition are generally considered nonfriable and are not hazardous.
Dispose of the asbestos properly at a landfill or contact your local waste collection service to find out if they will pick up asbestos material.
The siding may also contain asbestos if it is old with a wood grain texture to resemble cedar.
Shingles placed on a roof before the mid 1980s might contain asbestos.
A construction and demolition debris recycler in iowa has sampled loads of shingles since 1999.
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.
Below is an overview of sampling results for asphalt shingles gathered to date.
Cementitious siding installed after 1973 is very unlikely to contain asbestos.
It is very difficult to remove spray paint graffiti without also dissolving or discoloring some of the siding surface coating material itself.
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.
These materials are known as fiber cement siding and they contain no asbestos.
