Touching up problem areas with sealant can help as well but in most cases don t expect a wood roof to last more than 20 or 30 years.
How long should a shingle roof last.
You ll pay 250 to 600 per square for a wood shingle roof and warranties run up to 30 years.
These are the big boys.
Tile and slate roofing.
Replacing those in patches is an easier job than replacing your whole roof.
This means excessive moisture can remain on the roof which can lead to mold mildew and rot.
Biannually if possible you should check your roof for any place where tiles are missing or disturbed.
The pitch or slope of the roof also affects how long asphalt shingles last.
As long as you maintain your roof and repair damaged shingles you can extend the life of a composite shingle roof 10 15 years.
Hopefully you now know the answer to the question how long should a composite roof last depending on the style of shingle it could be as long as 50 years with the average between 20 30 years.
That said standing seam metal roof will last well over 50 years without problems if installed properly and with the seamless 24ga coated steel.
A wood shingle roof should be inspected annually and any split shingles should be promptly replaced.
Tab single roofs may only last 10 years whereas premium shingles can last up to 30.
Tile roofing is especially popular in the south and west and is an extremely durable material.