Lilly Miller Moss Out! This high-quality moss killer and herbicide is specifically designed for roofs decks patios and walkways. With its powerful formula it not only prolongs the life of these structures but also prevents costly roof damage. Its non-staining properties ensure that your surfaces remain unblemished while its non-corrosive nature is safe for galvanized gutters. Moss a seemingly harmless but actually destructive organism can cause loosening and staining of shingles creating hazardous conditions on walkways and decks. Lilly Miller Moss Out! effectively combats this pest making it an essential tool for maintaining safe and attractive outdoor spaces. Ideal for use during peak moss growth seasons of spring and fall it remains effective in controlling moss during slower growth periods in summer and winter. With a 6 lb. pack covering up to 6 000 sq. ft. this economical concentrate is a must-have for homeowners seeking to preserve the integrity and appearance of their outdoor structures.