10 Best Roof Moss Powder of 2025

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  moss removal

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  Kills moss quickly - see results in hours
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  Non-staining formula can be used on roofs, walks, decks and patios
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  Does not stain concrete, pavement, stucco, or wood
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  Attaches right to your garden hose no mixing

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  KILLS MOSS, ALGAE & MORE: 2-in-1 Moss & Algae Killer and Cleaner kills moss, algae, lichen, mold*, and mildew; No-odor formula won't stain surfaces or harm lawns when used as directed (*Not including species considered public health pests)
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  PROTECTS FOR MONTHS: Algae and moss killer kills within hours and provides protection for months; Protects against Algae, Lichens, Liverworts, Mildew*, Mold*, Moss, and Green Slime
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  2-IN-1 KILLER & CLEANER: Ideal for use on roofs, patios, decks, lawns, buildings, driveways, concrete walkways, fences, asphalt, and other listed areas
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  KILLS WITHIN HOURS: Moss will quickly turn yellow and then brown; Must be physically removed after treatment; Convenient and ready-to-use spray; Simply connect to a garden hose for easy application; Apply every two weeks
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  GET MORE FROM THE BLUE BOTTLE: From simple spot treatments to season-long protection, BioAdvanced's science-based solutions make it simple to control weeds, feed your lawn, and protect against diseases without harming the lawn, when used as directed

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  POWERFUL, EFFECTIVE ROOF CLEANER Say goodbye to ugly black streaks, green stains and debris on your roof. Roof Wash is highly effective on all types of roofing material: asphalt, metal, tile, wood shake, rubber and new composite materials.
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  SAFE, EFFECTIVE & EASY TO USE around pets, plants and people. Roof Wash is powered by hydrogen peroxide and 0% bleach. As an oxygen-based cleaner, the product only has an active life of 4-6 short hours before this product biodegrades, making it by far the safest method for roof cleaning. Unlike chlorine bleach and TSP, Roof Wash will not harm vegetation around the house or people and pets with chemical odors or fumes. Safe to use over water.
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  CONTRACTOR APPROVED Roof Wash is used by over 5,000 roof cleaning contractors in the US and Canada to effectively clean and remove stains on your roof without the use of bleach. Power Washing professionals, painters, builders and house washers trust Wash Safe to deliver transformative results to properties without damaging the home's materials or landscaping.
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  PROFESSIONAL STRENGTH, CONCENTRATED FORMULA Clean up to 3,000 sq. ft. and save money with our concentrated powder solution. Unmixed solution does not expire so you can store it in your garage and use it for years to come.
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  EASY TO USE Stains easily rinse right off with Roof Wash, a pressure washer and an easy spray on and rinse application. Instructions for How to your roof are included with the container.

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  Scotts MossEx in an easy-to-use shaker jug kills moss without harming your lawn
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  These ready-to-use moss killer granules contain nutrients to help develop green grass
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  Apply this lawn care treatment in the winter or spring when moss is actively growing
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  Product is best applied when lawn is moist and tall grass has been mowed to expose low growing moss
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  One 4.59 lb. jug of Scotts MossEx treats 1,250 sq. ft.

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  Wet & Forget Concentrate Outdoor Cleaner removes green and black stains caused by moss, mold, mildew, and algae, no scrubbing, no rinsing, no pressure washing, just wet it and forget
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  Surfaces including driveway, patio, roof, siding, deck, vinyl, wood, concrete, canvas, aluminum, and upholstery
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  Mix 1 part Wet & Forget with 5 parts water in a garden sprayer, spray dry surface on a cool day to avoid rapid evaporation of product, do not rinse, apply when rain is not forecasted within 4-5 hours
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  Apply when the temperature is above 32° F; unused product can be stored mixed and ready in sprayer for future applications
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  Cleans with the wind and rain, green stains clean up within 1-2 weeks, black stains or heavy, stubborn stains can take several months, long-established stains may take 6-12 months; surfaces can stay clean up to 1 year or longer

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  Fast-acting
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  Kills moss and prevents new growth
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  Does not harm lawn
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  Contains 35.0-percent ferric sulfate
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  Covers up to 2000 square feet

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  HOW TO USE: Use this patio, lawn and roof moss killer any time during the year by connecting the sprayer to a garden hose and spraying treatment area
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  NON-STAINING FORMULA: This moss killer for concrete, roofs and patios contains a fast-acting liquid formula that kills within hours and does not stain your concrete or other surfaces
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  WHERE TO USE: This lawn moss killer can also be used on ornamental gardens, around homes and on roofs, patios, decks, sidewalks, and more (as listed)
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  FAST-ACTING MOSS CONTROL: Scotts MossEx 3-in-1 Ready-Spray is a fast and effective moss killer that controls moss, algae, lichens, and liverworts, helping you reclaim your green spaces
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  COVERAGE: One 32 fl. oz. container of Scotts MossEx 3-in-1 Ready Spray treats up to 500 sq. ft.

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  The information below is per-pack only
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  HOW TO USE: Use this patio, lawn and roof moss killer any time during the year by connecting the sprayer to a garden hose and spraying treatment area
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  NON-STAINING FORMULA: This moss killer for concrete, roofs and patios contains a fast-acting liquid formula that kills within hours and does not stain your concrete or other surfaces
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  WHERE TO USE: This lawn moss killer can also be used on ornamental gardens, around homes and on roofs, patios, decks, sidewalks, and more (as listed)
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  FAST-ACTING MOSS CONTROL: Scotts MossEx 3-in-1 Ready-Spray is a fast and effective moss killer that controls moss, algae, lichens, and liverworts, helping you reclaim your green spaces
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  COVERAGE: One 32 fl. oz. container of Scotts MossEx 3-in-1 Ready Spray treats up to 500 sq. ft.