Moss, lichen and algae are not only an aesthetic issue. They retain moisture, spoil appearance and can accelerate wear on tiles, slate and other substrates.
Traditional roof access means risk, auxiliary equipment and often more logistics than needed. Our method studies moss removal without systematically climbing onto the roof.
Why moss appears
- Persistent humidity and shaded orientation
- Environmental pollution and organic deposits
- Lack of periodic maintenance
- Porous materials that retain water
How we intervene
After diagnosing material and colonization level, we apply progressive antimould / fungicide / algaecide treatments, without aggressive high pressure on sensitive materials.
- Pole from the ground on accessible zones
- Drone on high or hard-to-reach roofs
- Control of flow, product and treated areas
- Optional later water-repellent protection
Typical materials
Tiles, slate, zinc, fibre cement, metal sheet and other roof substrates. Each needs its own product and technique.
Client FAQs
Is high-pressure water enough?
Not our preferred approach on sensitive materials. We prefer progressive action and the right product.
How long does the effect last?
It depends on climate, orientation and maintenance. That is why we propose annual contracts when continuity is needed.
Request a free diagnosis and we will say whether pole, drone or both fit.