Asbestos roofing materials require the same level of safety attention whatever their form.
Asbestos cement tile roof.
The use of asbestos cement roof shingles was growing at a steady rate in the united states.
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 cement roof tiles are usually square shaped and their color is a combination of grey and black.
The asbestos content will vary on the manufacturer but the content will typically be 15 or less.
They were popular for their rigidity durability and fire resistance.
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.
Removing asbestos roof tiles.
Take the sample to an asbestos testing laboratory.
They can last for more than 40 years and if undamaged they pose little risk of exposure.
How to identify asbestos roof tiles.
Just to make sure take two or three samples for comparison.
We consider asbestos cement roof shingles a durable and fire resistant roof and an asset to the building provided that the roof is in good condition.
Many asbestos roofing materials have been present since the early 20th century.
When replacing the tiles with safer options do not do so carelessly.
This type of roofing material can have various colors from different shades of grey to red green and even blue.
If the tile has less than 1 percent asbestos then the results are negative.
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.
They are a cement based material known for being hard wearing and can last for more than 40 years.
The cost of testing a small sample is reasonable.
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.
But because asbestos cement roofing is easily damaged by a heavy footed worker unfamiliar with the materials involved asbestos cement roofs have to be repaired and maintained with the same care.
Asbestos roofing tiles are predominately comprised of cement.
Roofing shingles containing asbestos are manufactured from a mix of asbestos fibres and hydraulic cement.
