Interior Ceiling Spots
- Caused by leaks in the roof
- Check attic for leaks in decking
- Check rafters for water spots or leaks
Damaged Chimney Flashing
- Improper installation
- Drying and cracking
- Settling of the structure
Missing Shingles
- Improper fastening
- Exposure to high winds
Buckling of Shingles
- Wrinkled underlayment
- Roof deck movement
- Poor roof ventilation
- New shingles installed over old shingles
Curling of Shingles
- High nails or lack of back coating
- Under-saturation of asphalt felt in organic shingles
- Lack of ventilation or improper number of fasteners
Hail Damage
- An impacted area that loses granules
- Soft like a bruise on an apple
- Causes leaks after a year or more
- Shortens the life of a shingle
Algae
- Caused by the growth of the airborne algae which deposits on your roof
- Algae-resistant shingles are available
Missing Granules or Rotting
- Moisture absorbed by the core of the shingle
- Common in organic shingles
- Small amounts of loose granules on a new roof is normal