Many signs of a failing roof are obvious and can be spotted during a visual inspection. Warning signs of a failing roof include:
- Loose or missing shingles
- Obvious sagging
- Exposed nail heads
- Curled, cracked, or blistering shingles
- Granules or debris in your gutters
- Missing or damaged flashing
- Dark or stained areas
- Higher-than-average heating and cooler bills
- Water leaks in your top-floor ceilings
If your home has an asphalt shingle roof that’s more than 20 years old, it may need to be replaced even if it isn’t showing outward signs of failure.