Possible causes
- Shaded, north-facing roof slopes
- Overhanging trees
- Damp conditions and older, porous tiles
Warning signs
- Thick moss cushions on tiles
- Moss in gutters and downpipes
- Tile edges lifting
Typical solutions
- Careful hand removal
- Biocide treatment to slow regrowth
- Clearing gutters afterwards
When to get it inspected
When moss is thick enough to lift tiles or block gutters. Pressure washing can damage tiles, so it's best done by hand.
This page is general guidance, not a diagnosis. Call 01322 902061 to book an inspection, or read about our moss removal service.