Possible causes
- Slipped, cracked or missing slates and tiles
- Failed lead flashing at chimneys, walls and valleys
- Blocked gutters or outlets causing water to back up
- Worn or split flat roof membrane
- Perished underfelt on older pitched roofs
Warning signs
- Brown stains or damp patches on ceilings
- Drips in the loft after rain
- Peeling paint or bubbling plaster near the top of walls
- Daylight visible through the roof from the loft
Typical solutions
- Replacing individual slates or tiles
- Renewing or re-dressing leadwork
- Clearing and repairing gutters and outlets
- Patch repair or replacement of a flat roof covering