Grey asbestos is a mineral that was used extensively in building construction during the first half of the 20th century it is highly resistant to heat and fire.
Grey asbestos roof.
Providing samples for lab check.
However asbestos can be a range of colours depending on the material it is mixed with.
Asphalt shingles usually contain small amounts of 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.
They can last for more than 40 years and if undamaged they pose little risk of exposure.
Houses built before world war ii are more likely to have asbestos in the building materials.
The use of asbestos cement roof shingles was growing at a steady rate in the united states.
Asbestos roof tiles are usually square shaped and their colour is generally a combination of grey and black.
Asbestos cement roof tiles are usually square shaped and their color is a combination of grey and black.
However when mixed with other materials it may be impossible to know whether asbestos has been added or not.
Generally tiles containing asbestos do have a gray white or bluish white color.
Asbestos is actually whitish grayish or whitish blue in color.
Types of asbestos in roofing tiles.
Add to likebox 86441065 old dry pine that fell on the abandoned house with asbestos roof.
This type of roofing material can have various colors from different shades of grey to red green and even blue.
Depending on the state of the asbestos it can become a health concern.
Asbestos was used in everything from cars to ships.