- Curling or buckling shingles: shingles that are curling or buckling is a good indication that the roof is in need of being replaced. The sun, or poor ventillation has broke down the ashphalt layers in the shingles actually causing the shingles to shrink and curl. Once this has happended, the wind can easily grab the shingles, pulling them off the roof.
- Ashphalt granules in the eavesdrough: shingles tend to lose granules towards the end of their life cycle. A peek in your eavesdrough, where the granules tend to collect, is generally a quick way to tell if the product is breaking down.
- Missing shingles: over time, the tar strips that hold the shingles down, wear out. This makes them very suseptible to being blown off the roof during windy days. If you have shingles missing from your roof, your roof is suseptible to water leakage.
- Valleys: A very important part of the roofing system; rain and snow travel down the valleys into the gutters. If you notice the shingles are missing or falling apart in these areas, it is a good indication your roof may need replacement. A compromised valley can often result in a leaking roof.