Signs of bad roofs are damaged or missing shingles, experiencing leaks of any sort or any unleveling to your roof that you may notice. If you notice any blistering or peeling of paint, stains on wall or ceilings, a decay of sheathing siding or stucco may also be signs of the need for a roof replacement.

When shingles are old and worn out, they curl, split and lose their waterproofing effectiveness. Weakened shingles are easily blown off, torn or lifted by wind gusts. The end result is structural rot and interior damage. A deteriorated roof system only gets worse with time-it should be replaced as soon as possible.

Many apparent roof leaks are usually flashing leaks. Without good, tight flashings around chimneys, vents, skylights and wall/roof junctions, water can enter a home or building and cause damage to walls, ceilings, insulation and electrical systems. Flashings should be checked as part of a biannual roof inspection and gutter cleaning.