

Keep Your Roof Looking Great – and Protected
A clean roof doesn’t just enhance the beauty of your home — it also helps your tiles last longer and keeps your roof performing at its best. With a little care and the right approach, maintaining your roof is simple and highly effective.
Why Does Moss Appear on Roof Tiles?
Moss and lichen naturally develop over time when dust, leaves, and moisture settle on tiles.
Shaded or damp areas — under trees, on lower pitched roofs, or during winter months — particularly on north-facing roof slopes, are more prone to moss growth.
But even roofs in sunny areas can be affected, so regular visual checks are always recommended.
Why Is It Important to Remove Moss?
Although moss may look harmless, leaving it on your roof can create problems:
- It traps moisture, especially on clay tiles.
- It adds weight, which can strain your roof.
- It can block drainage channels, increasing the risk of leaks.
- It may damage mortar around key roof areas such as ridges, hips and chimney surrounds.
Removing moss helps protect your home, reduces long-term damage, and keeps your roof functioning as intended.
How Often Should You Clean Your Roof?
We recommend visually checking your roof once a year.
A full cleaning every 3 to 5 years is usually enough — unless early signs of moss or microorganism growth are observed by the building owner before this time.
Safe and Effective Roof Cleaning
Roof cleaning should be carried out by a qualified professional trained to work safely at height.
Good Practices
- Avoid walking on the tiles to prevent cracks.
- Do not use high-pressure jet washers.
- Always work from the top downwards.
Removing Moss
- Choose a dry day to make removal easier.
- Apply roof-safe anti-moss treatments after cleaning.
Check for Damage
Cleaning is the perfect time to spot cracked or broken tiles. Replacing them quickly helps keep your roof watertight and reliable.