Typical failures in base flashings that require repairs include:
- Tears or splits due to expansion and contraction.
- Poor adhesion at the top of the base flashing.
- Open side laps
- General deterioration
Repair procedures
- Always inspect the immediate area. Make sure water has not leaked into the affected area.
If it is likely that water has entered the roofing system
- Throughly inspect the insulation or roof deck for damage.
- Remove any wet or damaged insulation and repair the deck if required.
- Install new insulation