Life Expectancy Of Asbestos Roof Shingles

They are installed in a similar way as slate.

Life expectancy of asbestos roof shingles.

Asbestos was first used as a building material in the eastern and central parts of europe during the first. 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. While not able to match the endurance of slate asbestos shingles were expected to last a minimum of 30 years enhancing their desirability. The latency period of asbestosis can be very long with most people developing symptoms between seven and 20 years after exposure.

Fire resistant asbestos cement roofing is prevalent in communities. They have a life expectancy of about 12 to 15 years. 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.

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. There are no invincible roof shingles although. They often discolor and promote the growth of fungus or moss. But there are also four factors that can shorten the life expectancy.

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. They are difficult to repair and replacement shingles are hard to obtain. Estimating asbestos roof shingles life expectancy common advantages of asbestos cement roof shingles.

The roof may need. Maintenance asbestos cement shingles are somewhat brittle. You ll pay 250 to 600 per square for a wood shingle roof and warranties run up to 30 years. Insurance many insurance companies will not write a policy on a home with an asbestos cement roof.

A wood shingle roof should be inspected annually and any split shingles should be promptly replaced. Typical roof wear or failure patterns are either failure of the shingle fasteners or broken and falling shingles. 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. In all likelihood your roof is covered with asphalt shingles.