Easy to use and effective agent that controls moss, mould, mildew, lichen and algae growing on most exterior hard surfaces and surfaces including paths, driveways, decks, building exterior, fences, roofs, solar panels and more. Suitable materials to apply Moss-Kill to include concrete & masonry, brick & pavers, stones, metals, plastics, stucco, tiles, timber & hard wood (painted or unpainted), vinyl & canvas.