It also depends on whether the old roof was removed and you only have one layer of shingles and if it is properly ventilated.
How often to change roof.
In older homes flashing is often made of roof cement or tar but it s a good idea to upgrade to a metal flashing system for added durability.
Small leaks can be patched but larger ones structural damage and the age factor might make it wise and cost efficient to replace your roof sooner rather than later.
A more expensive roof will last you longer and you won t have to maintain it as often.
How often should you replace your roof.
Most experts agree that a typical roof will last between 20 and 25 years.
It is also crucial to pay attention to red flags that could indicate the presence of damage.
Unless it starts to leak or break apart you probably won t notice what s going on up there.
However regular inspection for potential problems is recommended twice a year according to the national roofing contractors association.
If the roof was installed over another layer or several layers and it is older than 20 years chances are you need a new roof.
The entire roof is sagging.
5 upgrades to consider when re roofing your home.
There s no a simply answer.
When determining if you need a roof replacement it is important to consider all aspects of your roof such as its age condition and how well you maintain it.
First the biggest impact on the lifespan of your roof will be the material you choose.
Generally the cheaper your roof the shorter the lifespan and the more likely it will need maintenance.