General description Smartseal roof sealer creates a water-repellent barrier and protects against the re-growth of moss and algae. This high-quality, clear, solvent-free acrylic impregnating roof sealer is suitable for concrete, clay, or slate tile roofs. Once applied, it alters the chemical structure of the roof tiles, providing an excellent water-repellent surface while greatly restricting the growth of algae, lichen, and moss. Technical specifications Volume: 25 litres Coverage: Up to 125 m² on concrete roof tiles; 200-250 m² on clay and slate roof tiles Average coverage: 5 m² per litre Touch dry: 2-3 hours Fully waterproof: 24 hours Lifespan: Up to 10 years Solvent-free Application method: Sprayer or brush Preparation Ensure tiles or slates are completely clean, dry, and free from moss or algae spores. If not applied to a new roof, pressure washing and application of a suitable biocide is essential. Application Apply roof sealer by handheld sprayer or brush to saturation. After