Corry's 100099020 Moss B Ware, Solid, White, 3 lb Can (Pack of 12)

Kills and prevents damaging moss on roofs, patios and walkways for up to two years. Destroying and preventing moss can extend the life of roofs and improve the condition of patios and walkways. Can be applied directly from the container or mixed with water and applied with a sprinkling can or pump-up sprayer. Won't stain roofs or corrode aluminum and galvanized gutters when used as directed.