They can last for more than 40 years and if undamaged they pose little risk of exposure.
Asbestos concrete roof tiles.
This is because until the 1980s asbestos was not fully recognised to be hazardous to the health of anyone exposed to its fibres.
Older building have a higher probability of containing asbestos building materials.
The cost of testing a small sample is reasonable.
All mastic or bitumen based pressed metal roof tiles should be suspected of containing asbestos.
How to identify asbestos roof tiles.
Just to make sure take two or three samples for comparison.
As asbestos cement is considered a relatively low risk asbestos material you do need not a licensed contractor for removing asbestos roof products.
Take the sample to an asbestos testing laboratory.
When replacing the tiles with safer options do not do so carelessly.
Asbestos cement roof tiles are usually square shaped and their color is a combination of grey and black.
This type of roofing material can have various colors from different shades of grey to red green and even blue.
The use of asbestos cement roof shingles was growing at a steady rate in the united states.
They are a cement based material known for being hard wearing and can last for more than 40 years.
Tiles which contain asbestos include mastic or bitumen based pressed metal roof tiles that were produced prior to the early 1980s.
The fire resistant properties of these roof tiles weren t the only reason they were so popular as asbestos is incredibly durable and strong.
Asbestos roofing tiles are predominately comprised of cement.
Removing asbestos roof tiles.
Because there are fiber cement roofing products that replaced asbestos fiber cement roofing products that were subsequently made when asbestos use stopped and because those newer roofing products look so much like the older asbestos containing product without a marking stamped into the roofing material that gives an age product number or.
As a building material asbestos was very widely used between the 1950s and 90s especially as a roofing material due to its fire resistant properties.
This meant that roofs that were made from.
However it is advisable that you use a competent and experienced contractor who is aware of the guidelines associated with removing asbestos roof tiles and their disposal.
If the tile has less than 1 percent asbestos then the results are negative.
The asbestos content will vary on the manufacturer but the content will typically be 15 or less.
