How often does a roof need to be replaced?

It all depends on your location, the initial installation, the quality of materials, and even its ventilation. Typically, a well-constructed roof will last between 12-15 years. Depending on the type of shingles you choose, as well as the underlayment of your roof, that number can go up to 30 or more. All of this is to say your roof doesn’t encounter damage from severe weather in the meantime.