Most roof damage occurs before anyone at ground level notices it. The following are some signs that your roof (or parts of it) may need replacing.
1. Shingles that are buckling, curling or blistering; this indicates the end of the shingles’ life expectancy.
2. Loose material or wear around chimneys, pipes and other penetrations. 3. Excessive amounts of shingle granules in your gutters; granules give shingles added weight and protect them from ultraviolet rays.