All too often, roof system problems are discovered after leaking or other serious damage occurs. Periodic (twice-a-year) inspections often can uncover problems. These include cracked, warped, or missing shingles; loose seams and deteriorated flashings; excessive surface granules accumulating in the gutters or downspouts; and other visible signs of roof system problems.

You can also look for roof problems indoors, such as cracked paint, discolored plasterboard and peeling wallpaper. These are good markers of damaged roof areas.