But we have seen these roofs that were now 50 years old in good condition.
Life expectancy of asbestos roof shingles.
Your roof will spend its entire working life outdoors where it s subject to a variety of weather conditions pests and the damage they can create as well as plain ol aging.
They often discolor and promote the growth of fungus or moss.
They have a life expectancy of about 12 to 15 years.
Asbestos was first used as a building material in the eastern and central parts of europe during the first.
The average lifespan for shingles which is normally around 20 years is determined to be about 14 years for warmer environment such as the southwest.
There are no invincible roof shingles although.
At first they are only noticed when someone engages in quite strenuous exercise but as it progresses it becomes noticeable even when engaging in simple tasks such as walking to the kitchen.
While not able to match the endurance of slate asbestos shingles were expected to last a minimum of 30 years enhancing their desirability.
The typical life expectancy of an cement asbestos shingle roof was given as 30 years but we have seen these roofs that were now 50 years old in good condition.
Insurance many insurance companies will not write a policy on a home with an asbestos cement roof.
In all likelihood your roof is covered with asphalt shingles.
Maintenance asbestos cement shingles are somewhat brittle.
They were also valued for being lightweight which significantly reduced the costs involved with shipping and installation.
Typical roof wear or failure patterns are either failure of the shingle fasteners or broken and falling shingles.
You ll pay 250 to 600 per square for a wood shingle roof and warranties run up to 30 years.
The roof may need.
The latency period of asbestosis can be very long with most people developing symptoms between seven and 20 years after exposure.
A wood shingle roof should be inspected annually and any split shingles should be promptly replaced.
The typical life expectancy of an cement asbestos shingle roof was given as 30 years.
They are installed in a similar way as slate.
Typical roof wear or failure patterns are either failure of the shingle fasteners or broken and falling shingles.
But there are also four factors that can shorten the life expectancy.
Fire resistant asbestos cement roofing is prevalent in communities.
Whereas in the north and northeastern regions of the united states asphalt shingles last anywhere from 19 to more than 20 years.
