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Roof Damage

Although reported by only 8.5% of the respondents of a recent survey as the most common problem, roof leakage, caused by old or damged shingles or improper flashing, was considered, by OAHI members to be a frequent problem. Find out how old a roof is and you'll have a good idea of when you will have to replace it. A tar and gravel roof is good for around 15 years, asphalt & wood shingles 15 to 20, and wood shakes 20 to 25 years, less in the southern regions of the country.