But we have seen these roofs that were now 50 years old in good condition.
Life expectancy of asbestos roof shingles.
Whereas in the north and northeastern regions of the united states asphalt shingles last anywhere from 19 to more than 20 years.
The roof may need.
Typical roof wear or failure patterns are either failure of the shingle fasteners or broken and falling shingles.
In all likelihood your roof is covered with asphalt shingles.
The typical life expectancy of an cement asbestos shingle roof was given as 30 years.
There are no invincible roof shingles although.
They are installed in a similar way as slate.
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.
Estimating asbestos roof shingles life expectancy common advantages of asbestos cement roof shingles.
Asbestos cement shingles are brittle and are susceptible to mechanical damage.
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.
Fire resistant asbestos cement roofing is prevalent in communities.
They have a life expectancy of about 12 to 15 years.
Insurance many insurance companies will not write a policy on a home with an asbestos cement roof.
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.
They were also valued for being lightweight which significantly reduced the costs involved with shipping and installation.
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 are difficult to repair and replacement shingles are hard to obtain.
The latency period of asbestosis can be very long with most people developing symptoms between seven and 20 years after exposure.
They often discolor and promote the growth of fungus or moss.
Typical roof wear or failure patterns are either failure of the shingle fasteners or broken and falling shingles.
While not able to match the endurance of slate asbestos shingles were expected to last a minimum of 30 years enhancing their desirability.
Asbestos was first used as a building material in the eastern and central parts of europe during the first.
But there are also four factors that can shorten the life expectancy.
