30 SECONDS® Roof Treatment is biodegradable and contain no bleach. The formulation takes care of hard-to-move lichen, moss, mould and algae, with no additional scrubbing or rinsing after application.

Works on most roofing materials
Use on terracotta, slate, concrete and steel roofs, canvas, polycarbonate, and vinyl awnings, synthetic tiles and shingles.

Timeframes

• Some lichen, moss, mould & algae may take up to 6-8 weeks to show any sign of decay. Some growth may turn orange in colour, but this will wash away over time.
• Heavily contaminated surfaces may take up to 6months to come clean. Reapplication may be required for heavy growth.
• For heavily contaminated areas – brushing to remove dead material may be required.