How do you know when it's time to re-roof?
My house has it’s original shingles, around 15 years old. Do I just assume that I should follow the recommendations on life expectancy? Do I wait for a leak? If I have a roofing person look at it, how can I know he’s telling the truth (seems like a clear conflict of interest)?
This question is in the General Section. Responses must be helpful and on-topic.