An asphalt shingle roof should last between 20 and 30 years says claude mcgavic executive director of the national association of home inspectors.
How often to replace a shingle roof.
If the shingle breaks easily then your best bet is to replace the entire roof.
Most roofs with asphalt shingles will last an estimated 15 to 20 years.
Galvalume or metal roofing materials have an estimated lifespan of 30 to 45 years and concrete tile generally lasts between 30 and 50 years.
For example the average lifespan of a cedar roof is roughly 20 years.
You can expect architectural asphalt shingles to last a bit longer at an average of 25 to 30 years.
How often to replace a roof.
Depending on the type of asphalt shingle you have you can expect to get anywhere from 15 to 30 years life expectancy from that roof.
In our experience most old style asphalt roofs start to fail after 14 years.
To determine if you can repair your asphalt shingle roof or should replace it bend a tab of the roofing on a warm day.
If your roof is between 18 20 years of age then you have attained a good amount of life out of it.
If the shingle is flexible and doesn t break the roof has a few years left and you should be able to repair the damage.
It is an unfortunate fact that the older styles of asphalt shingles do not last as long as their warranties would indicate.
It is probably time to replace it.
The type of roofing material used will determine how often a roof needs to be replaced.