There are at least three types of asbestos shingles.
How long will an asbestos roof last.
Cement sheets are one of the most commonly used roofing products that the mineral is found in and there are still a large number of.
It is not unreasonable to expect 100 years from a properly maintained asbestos roof.
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.
There is more information about asbestos roofs in the slate roof bible.
Neither question has an easy answer because both depend on a number of variables.
Asbestos is an excellent electrical insulator and is highly heat.
Due to its fantastic thermal qualities and being extremely fire retardant it is not surprising that asbestos was extensively used in roofing and insulation in the 20 th century.
Contemporary roofing product manufacturers make reinforced fiber cement roofing shingles and other roofing products which look like perform similarly to and need to be installed similarly to the original corrugated asbestos cement sheet roofing but these new products are free of asbestos.
Hi the first floor of my house has large portion of it covered by asbestos cement it has been so for a few decades now.
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.
Asbestos cement in roofing.
How long do asbestos roofs last.
The roof was in excellent condition for long but over the past few months there were a few incidents of tree branches falling on the roof during heavy winds causing small portions of the roof on the edges to break off.
Manufacturers used to make shingles that would last 40 years but those shingles were made using asbestos which is not used any longer.
The house is 60 years old could this be original.
Regular flat shingle tiles standard lap are shown below as are common diamond shaped tiles and side.
æ s ˈ b ɛ s t ə s or æ s ˈ b ɛ s t ɒ s is a term used to refer to six naturally occurring silicate minerals all are composed of long and thin fibrous crystals each fibre being composed of many microscopic fibrils that can be released into the atmosphere by abrasion and other processes.
They can last for more than 40 years and if undamaged they pose little risk of exposure.
This is one of the most common questions we get asked by clients as well as how much does it cost to replace a roof.
Do they need maintenance.
Is it a major health concern to live in a home with asbestos on it.
Let s break it down.
