Here are some useful tips on how to recognize asbestos roof slates.
Slate roof tiles asbestos.
However the main problem is identifying asbestos containing roofs since roofing tiles were manufactured in a variety of shapes and colors and each type had its own particularities.
Asbestos roofing tiles are predominately comprised of cement.
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This is because until the 1980s asbestos was not fully recognised to be hazardous to the health of anyone exposed to its fibres.
All mastic or bitumen based pressed metal roof tiles should be suspected of containing asbestos.
Asbestos roof tiles can be dangerous the main reason why asbestos roof tiles need to be replaced by safer alternatives is that the asbestos fibers used to build the material pose a health hazard when inhaled and when they come into contact with the skin.
But other types of roof tiles containing asbestos also exist.
Older building have a higher probability of containing asbestos building materials.
While a tile that contains asbestos will be referenced as an asbestos tile it should be noted that these tiles are not made up of solely asbestos.
Over time asbestos shingled roofs take on a weathered appearance that looks a lot like slate.
Tiles which contain asbestos include mastic or bitumen based pressed metal roof tiles that were produced prior to the early 1980s.
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.
The asbestos content will vary on the manufacturer but the content will typically be 15 or less.
If you know how to identify asbestos roof tiles and suspect you have cement asbestos shingles it is advisable that you monitor your roof to check for its health.
Here you can find instructions for installing a slate roof repairing and restoring slate roofs and repairing asbestos roofs and ceramic tile roofs.
Asbestos roof removal and replacement.
Having or buying a home with asbestos tiles does not mean you need to remove the tiles especially if they are still in good health.
However asbestos can also often be found in roof shingles or tiles.
The most common kind of asbestos roof in australia is super six corrugated asbestos sheeting.
