Lichen is not moss: it is those orange or whitish crusts stuck to the surface, far more attached and hard to remove. They need the right product and patience, "brute" high pressure damages the tile or stone before loosening them.
Why it is not worth putting off
Lichen releases acids that attack the tile and stone over the years. Ignoring it is not just cosmetic, it speeds up the decay of the surface.
How we do it
- A specific product for lichen, left to act
- Controlled pressure (force alone damages, it does not solve)
- On a roof, weight distribution and safety first
- A preventive treatment at the end to delay the return
Mistakes we see (and avoid)
- Dry high pressure, breaks the tile/pits the stone and the lichen stays
- Scraping dry, damages the surface
- Ignoring it, the lichen comes back and decays the tile further
Guide price, no surprisesAlways an invoiceBefore/after photosNo prepayment