Kills and controls green growth, algae, mould and lichens on a multitude of surfaces including patios, walls, roof tiles, monuments, caravans, green houses, driveways, decking, conservatories, greenhouses, artificial grass, garden furniture and fence panels. Use prior to staining wooden fencing and furniture to remove green growth for up to 9 months of proetection. Kills & Controls All Green Growth Use on Algae, Mould & Lichen Ideal for Patios, Decking, Fencing, Tiles & More Up to 9 Months of Protection Covers up to 220m² Multi-Surface Use Kills & Controls All Green Growth Use on Algae, Mould & Lichen Ideal for Patios, Decking, Fencing, Tiles & More Up to 9 Months of Protection Covers up to 220m² Multi-Surface Use