The prevailing weather is also a factor the drier the better and thatched roofs under trees can deteriorate more quickly as the sugars dripping off them can help bacteria to breed.
How often should a roof be replaced uk.
If your roof is constantly being pelted with hail it won t last as long as a roof that gets a bit of rain once in a while.
If you have a 40 year old roof there could be.
That said there are many old tiled roofs which are still in service usually to preserve the character of a building but they will have been subject to an extensive overhaul and will need regular maintenance.
An asphalt shingle roof should last between 20 and 30 years says claude mcgavic executive director of the national association of home inspectors.
The lifespan of a thatched roof depends largely on how well it was built how steep it is how often it is maintained and which material is used to construct it.
Your roof is at least 20 years old.
It also depends on whether or not a house has a single layer or multiple layers of shingles.
While many shingles today are produced for durability many factors can accelerate the aging of shingles.
Before you make a replacement do your due diligence to ascertain that is what you need and ensure that you know the signs of a bad roofing job so that you re not stuck with a roof that you have to replace again soon.
Unless it starts to leak or break apart you probably won t notice what s going on up there.
The lifespan of your roof will depend on its material and the weather conditions you live in.
If your roof is made up of multiple layers of shingles and it s around 20 years or more you might want to have it replaced.
As a rule of thumb most roofs can last for 20 25 years before they need to be replaced.
However regular inspection for potential problems is recommended twice a year according to the national roofing contractors association.
It is now over 100 years old and on a rule of thumb basis might now be expected to have reached the end of it s useful life.
How often should a roof be replaced depends on several factors.
Sadly an often ignored part of the house is the roof.
Knowing when a roof was installed and what it s made of offers insight into how much life it has left.