This is because until the 1980s asbestos was not fully recognised to be hazardous to the health of anyone exposed to its fibres.
Asbestos indoor roof tiles.
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.
When replacing the tiles with safer options do not do so carelessly.
The only way to accurately identify asbestos roof tiles is to have them tested by a ukas accredited laboratory.
However asbestos can be a range of colours depending on the material it is mixed with.
Take the sample to an asbestos testing laboratory.
Tiles which contain asbestos include mastic or bitumen based pressed metal roof tiles that were produced prior to the early 1980s.
Asbestos roof tiles are usually square shaped and their colour is generally a combination of grey and black.
Older building have a higher probability of containing asbestos building materials.
All mastic or bitumen based pressed metal roof tiles should be suspected of containing asbestos.
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.
Removing asbestos roof tiles.
The use of asbestos cement roof shingles was growing at a steady rate in the united states.
They can last for more than 40 years and if undamaged they pose little risk of exposure.
The cost of testing a small sample is reasonable.
The old tiles are relatively thin around 1 8 inch thick so installing new flooring on top.
Just to make sure take two or three samples for comparison.
Asbestos cement roof tiles are usually square shaped and their color is a combination of grey and black.
Ceilings were also covered with cement asbestos products as a fire barrier in boiler rooms and similar locations.
Asbestos roof tiles were used from the early 1920s all the way in to the late 1980s.
This type of roofing material can have various colors from different shades of grey to red green and even blue.
One of the best ways to deal with asbestos tile is to leave it in place and cover it with new flooring.
However once considerable testing proved that it was a killer the miracle became a nightmare to deal with and remove.
If the tile has less than 1 percent asbestos then the results are negative.
Amosite asbestos also a widely used form of asbestos was used in some ceiling tiles as well as in roof and floor tiles.
Sbestos was once considered a miracle material used in everything from paint and pipe insulation to even tiling.
Crocidolite asbestos was also used in ceiling tile production.