Asbestos insulation usually looks like a loose gray material and it is also commonly wrapped around the outside of pipes.
How to determine asbestos siding.
The asbestos network recommends bringing in a professional to collect samples.
Ft of exterior wall space you will want enough siding to cover 2625 sq.
The only way to be sure if your siding has asbestos in it is to collect a sample and send it to an accredited testing lab.
The only true way to identify asbestos siding is to have it tested.
Step 4 have it analyzed.
Many manufacturers made their products to look like asbestos free products so it is not really possible to determine if your siding contains asbestos just by looks.
Check the manufacturer and product name on the insulation label and do a web search to find out if.
It may be smooth or have a pressed wood grain pattern on the surface of the board.
Cement asbestos wall shingles outside and not easily friable unless being demolished or cut with power tools.
There will be a certain amount of waste and of course there is always a mistake or two that must receive an allowance.
Add 12 5 of the number of sq.
On the outside of buildings asbestos sheets were often joined together with aluminum runners.
It is ususally in a shingle shake form 12 x24.
Asbestos wasn t always added to cement siding and there s no way to tell from a visual test or physical inspection on site if siding really does have asbestos in it.
Are there several layers of siding wall cladding extending out past the original door trim or window trim could be an indication of several layers of siding the one behind is likely containing asbestos since it was such a popular material previously.
So if you have a rounded total of 2500 sq.
See photos at asbestos siding in this document.
The only way to be sure whether your siding contains asbestos is to have it tested.
Take a small sample of the insulation and place it into a sealed container.
Identifying possible asbestos materials 1.
Contractors and inspectors or anyone identifying asbestos siding can t tell from just an on site inspection whether or not your siding really has asbestos in it.
To the get the finished total.
Determine when the shingles were installed on your roof.
You can easily send a sample to a lab is you suspect that it may contain asbestos.
If you don t know the age of the shingles inspect them for wear.
They then send the samples to a qualified laboratory to test and determine whether they contain asbestos.
Asbestos shingles were so common during the 20th century that almost any shingles installed between 1920 and 1986 probably include asbestos.