Moss Out For Roofs, Covers 4,000-Sq. Ft.
On outdoor structures, damaging moss can grow in nearly any location where dampness persists. Controlling structural moss may add years of service to roofs, patios, sidewalks, brick, and unpainted cement. Used wet or dry, this exclusive Micro-Granule Formula is non-staining and also non-corrosive to galvanized gutters. 99% Zinc Sulfate Monohydrate