Window–roof leaks occur where roofing systems intersect with windows, walls, and siding. These leaks are often misdiagnosed because water entering at the roof line may appear around windows, ceilings, or interior walls.
Accurate diagnosis is essential to determine whether the leak is caused by flashing failures, improper sealing, or roof-to-wall transition issues rather than the window itself.
Common Causes of Window & Roof Leaks
Window–roof leaks are commonly caused by:
- Failed or missing flashing at roof-to-wall transitions
- Improperly sealed window flashing or trim
- Water is entering behind the siding above the windows
- Deteriorated sealants around window frames
- Storm damage affecting the roof edges near the windows
Repairing Window & Roof Leak Problems
Repairing roof-related window leaks requires identifying where water is entering the structure, rather than focusing solely on the visible damage. In many cases, repairs involve correcting flashing, sealing transitions, or repairing roofing components above the window area.
Once the source of the leak is identified, targeted repairs can be made to stop water intrusion without unnecessary replacement of windows or roofing materials.
For complete roof leak diagnosis and repair services, visit our Roof Leak Detection & Repair page.