Roof Moss Removal & Anti-Moss Treatment in Nouvelle-Aquitaine

Technical moss removal to protect your roof long-term

Unlike a simple surface clean designed to remove dust and surface streaks, roof moss removal is a targeted technical intervention. It directly tackles embedded plant micro-organisms — moss, lichen and green or black algae — that colonise your tiles and degrade the physical qualities of your roof.

These organisms have very fine but aggressive roots, called rhizoids. These filaments penetrate the micropores of terracotta or concrete. As they absorb water, they keep the tile constantly damp. When winter frosts arrive, the frozen water expands and creates micro-cracks. This weakens the very structure of the roof, making the tiles porous and brittle. In the long run, this inevitably leads to water ingress and leaks. Our moss removal service in Nouvelle-Aquitaine combines meticulous physical removal with the application of a powerful curative treatment to thoroughly clean your roof.

The long-lasting curative anti-moss treatment: how does it work?

To completely destroy the vegetation without harming your roof, we follow several methodical steps:

1. Gentle mechanical removal: If the moss is very thick, we carry out manual brushing or thermal low-pressure cleaning (steam at 100°C) to lift off surface plant matter without damaging the tiles.
2. Application of the curative treatment: We spray an eco-friendly algicide and fungicide product over the entire roof. This product penetrates the surface to eliminate residual roots, spores and germs invisible to the naked eye. The destroyed micro-organisms are then naturally washed away by rainwater over the following weeks.
3. Application of the long-lasting water-repellent curative treatment: We strongly recommend following up with a water-repellent barrier. This product seals the pores of the tile while still allowing it to breathe. Water then slides off the roof instead of soaking in, depriving moss and lichen of the moisture they need to grow back.

Eco-friendly products that respect your surroundings

At Aquit’n Nettoyage, we’re committed to using eco-friendly, biodegradable treatments. Our targeted formulas contain no chlorine or harsh acids. This means they’re safe for your tiles, don’t alter their original colour, and respect the immediate surroundings of your home (gardens, flower beds and rainwater harvesting systems). We take care to protect local biodiversity while guaranteeing maximum, lasting effectiveness.

When should you have your roof de-mossed?

Several signs should alert you to the need for treatment:

• Green or yellowish patches visible from the ground.
• Tiles that stay dark or damp long after rain has stopped.
• Moss debris falling into your gutters or onto your terrace.
• Tiles starting to crumble or show micro-cracks.

In general, a complete moss removal combined with a long-lasting curative water-repellent treatment protects your roof for 5 to 10 years, depending on north-facing exposure, shade from nearby trees and the local climate. For a free diagnosis or quote for moss removal in Nouvelle-Aquitaine, get in touch.