Come check out products and information you need to safely remove moss and algae from grass, artificial grass, patios and paving blocks, roof tiles. algae Control controls moss and algae just about anywhere it grows. Use algae and moss control products to get rid of unwanted moss and algae throughout your yard, including lawns, roofs, driveways, walkways, fences, decks and other outdoor surfaces constructed of wood, asphalt, concrete, brick, tile, stone, and other surfaces. On pathways, roofs and other surfaces, moss is an issue because it can slowly cause surface decay. It is also slippery, which can pose as a safety hazard. In the landscape, moss can prevent water from reaching roots of nearby plants, grass, trees and shrubs.