Moss, mildew and algae grow on outdoor surfaces that stay damp and shaded. They leave green and black stains on walls, terraces, compound walls and paths, and they make those surfaces slippery when wet. Removing them keeps a property looking clean and reduces the slip risk underfoot.
Where moss and mildew grow
Growth is most common where water lingers and sunlight is limited: north-facing and shaded walls, terrace floors, roofs, window frames, and stone or concrete that dries slowly after rain. Humid weather and the monsoon months speed this growth up.
Why it is worth removing
- Green and black stains spoil the look of walls and floors.
- Moss and algae hold moisture against the surface.
- Wet moss and algae are slippery and can be a hazard on steps and terraces.
How to remove moss and mildew without scrubbing
A ready-to-use spray removes the need for hard scrubbing. The Zyax Moss & Mildew Remover Spray is a no-scrub solution that lifts moss, mildew and algae stains and kills 99.9% of bacteria. It is made for both indoor and outdoor use and works on wood, stone and concrete.
To use it:
- Shake the bottle well before use.
- Spray directly onto the affected surface.
- Allow the solution to sit for about 5 minutes.
It suits walls, terrace floors and railings, and window frames, lifting moss, mildew and bio-growth so the surface returns to its original appearance.
Keeping growth from returning
Moss and mildew return fastest where damp stays trapped. Where you can, improve drainage and let in more light, and clear the surface again as soon as fresh growth appears. The active ingredients in the spray help limit regrowth after cleaning.
Browse the full range of Zyax home care products for more cleaning solutions.
