They can last for more than 40 years and if undamaged they pose little risk of exposure.
Asbestos roof tiles interior.
The use of asbestos cement roof shingles was growing at a steady rate in the united states.
However once considerable testing proved that it was a killer the miracle became a nightmare to deal with and remove.
Sbestos was once considered a miracle material used in everything from paint and pipe insulation to even tiling.
This type of roofing material can have various colors from different shades of grey to red green and even blue.
The only way to accurately identify asbestos roof tiles is to have them tested by a ukas accredited laboratory.
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.
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.
Asbestos roof tiles are usually square shaped and their colour is generally a combination of grey and black.
Tiles which contain asbestos include mastic or bitumen based pressed metal roof tiles that were produced prior to the early 1980s.
But other types of roof tiles containing asbestos also exist.
However asbestos can be a range of colours depending on the material it is mixed with.
Asbestos cement roof tiles are usually square shaped and their color is a combination of grey and black.
It is sometimes referred to as transite tile.
Asbestos roof tiles were used from the early 1920s all the way in to the late 1980s.
Manufacturing in the united states began in 1905.
This is because until the 1980s asbestos was not fully recognised to be hazardous to the health of anyone exposed to its fibres.
This combination was first used in europe in the 1870s.
Asbestos tile is a type of roofing tile made up of a combination of portland cement and asbestos fibers and various fillers.
Asbestos roofing tiles are predominately comprised of cement.
Older building have a higher probability of containing asbestos building materials.
