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.
Grey asbestos roof.
Depending on the state of the asbestos it can become a health concern.
The use of asbestos cement roof shingles was growing at a steady rate in the united states.
106700891 surface of gray color wavy asbestos cement roofing slate texture.
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Asbestos is actually whitish grayish or whitish blue in color.
They can last for more than 40 years and if undamaged they pose little risk of exposure.
Generally tiles containing asbestos do have a gray white or bluish white color.
This type of roofing material can have various colors from different shades of grey to red green and even blue.
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.
However asbestos can be a range of colours depending on the material it is mixed with.
Providing samples for lab check.
Asphalt shingles usually contain small amounts of asbestos.
Asbestos was used in everything from cars to ships.
Houses built before world war ii are more likely to have asbestos in the building materials.
The only way to accurately identify asbestos roof tiles is to have them tested by a ukas accredited laboratory.
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Asbestos cement roof tiles are usually square shaped and their color is a combination of grey and black.