Keep your roof in tip-top shape with these smart maintenance and repair ideas. A leaking roof can cause serious and costly damage to your house. Infiltrating water can destroy drywall or plaster, cause mold, and even rot framing. You should repair a roof as soon as possible after the damage occurs. Dealing with a damaged roof is sometimes a simple matter of applying roofing cement to an obvious hole; at other times you will need to spend time diagnosing the problem and calcul