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10 Best Roof Cleaners 2025 in the United States
#1
Winner
Rust-Oleum 4.75 Gallon 301994 Elastomeric Roof Coating, 710 White
Rust-Oleum’s Elastomeric Roof Coating is a liquid roof cleaner and protective coating designed for outdoor use on various roofing materials. It comes in a large 4.75-gallon pail and covers about 35 square feet per gallon, making it suitable for medium-sized roof areas. This product is applied by spray, which can help with even coverage but may require appropriate equipment and some experience for best results.
Rating
10.0
Chosen by1,286
Type of Cleaner
Application Method
Coverage Area
Most important from
411 reviews
#2
303 Products Rubber Roof Cleaner - Removes Build Up On The Rubber Roofs of RVs, Campers, Pop-Ups, and Motorhomes, Will Not Harm Solar Panels, 1 Gallon (30239)
The 303 Products Rubber Roof Cleaner is a liquid cleaner specifically designed for rubber roofs on RVs, campers, pop-ups, and motorhomes. Its formula effectively removes heavy dirt and buildup without damaging sensitive surfaces like solar panels, siding, or rubber seals, which makes it safe and environmentally friendly. The cleaner is biodegradable and unscented, a good choice if you want to avoid harsh chemicals or strong smells.
Rating
8.5
Coverage Area
Effectiveness Duration
Most important from
517 reviews
#3
Wet & Forget Outdoor Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Cleaner, Xtreme Reach Hose End with New & Improved Nozzle, 48 Fluid Ounces
Wet & Forget Outdoor Moss, Mold, Mildew, & Algae Stain Remover is a versatile multi-surface cleaner that attaches to your garden hose with a new and improved nozzle for ease of use. The jet tip can spray up to 30 feet, making it ideal for reaching high areas like roofs, while the fan tip allows quick application on larger surfaces such as driveways and decks. One significant advantage is that it doesn't require rinsing and works over time with the wind and rain, cleaning green stains in 1-2 weeks and more stubborn black stains over several months.
Rating
8.5
Application Method
Coverage Area
Effectiveness Duration
Most important from
3505 reviews
Top 10 Best Roof Cleaners 2025 in the United States
#1
Winner
Rust-Oleum 4.75 Gallon 301994 Elastomeric Roof Coating, 710 White
Rust-Oleum 4.75 Gallon 301994 Elastomeric Roof Coating, 710 White
Type of Cleaner: liquid roof cleaner and coating
Application Method: Spray
Coverage Area: 35 sq ft per gallon
Chosen by 1286 this week
303 Products Rubber Roof Cleaner - Removes Build Up On The Rubber Roofs of RVs, Campers, Pop-Ups, and Motorhomes, Will Not Harm Solar Panels, 1 Gallon (30239)
303 Products Rubber Roof Cleaner - Removes Build Up On The Rubber Roofs of RVs, Campers, Pop-Ups, and Motorhomes, Will Not Harm Solar Panels, 1 Gallon (30239)
Type of Cleaner: Liquid cleaner for rubber roofs
Application Method: Dilute 5 oz in 5 gal water
Coverage Area: One gallon treats large roof area
Safety and Environmental Impact: Biodegradable, safe, non-abrasive, solar safe
Wet & Forget Outdoor Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Cleaner, Xtreme Reach Hose End with New & Improved Nozzle, 48 Fluid Ounces
Wet & Forget Outdoor Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Cleaner, Xtreme Reach Hose End with New & Improved Nozzle, 48 Fluid Ounces
Type of Cleaner: Outdoor Moss, Mold, Mildew Remover
Application Method: Attaches to garden hose
Coverage Area: Up to 2,000 sq ft
Safety and Environmental Impact: Bleach-free, non-acidic
Effectiveness Duration: Up to a year
Wet & Forget Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Outdoor Cleaner Concentrate, Original, 128 Fluid Ounces
Wet & Forget Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Outdoor Cleaner Concentrate, Original, 128 Fluid Ounces
Type of Cleaner: Moss, Mold, Mildew & Algae Remover
Application Method: Mix with water, spray on surface
Safety and Environmental Impact: Fragrance-free, safe for many materials
Effectiveness Duration: Keeps surfaces clean for over a year
Concrobium Mold Control Aerosol, 14.1 oz – Eliminates & Prevents Mold – EPA Registered, Bleach-Free, Odorless, VOC-Free – For Indoor & Outdoor Surfaces, Mid-Sized Jobs, and Hard-to-Reach Areas
Concrobium Mold Control Aerosol, 14.1 oz – Eliminates & Prevents Mold – EPA Registered, Bleach-Free, Odorless, VOC-Free – For Indoor & Outdoor Surfaces, Mid-Sized Jobs, and Hard-to-Reach Areas
Type of Cleaner: Mold Control Aerosol
Active Ingredients: EPA-registered formula
Application Method: Spray
Coverage Area: 100-150 sq ft per can
Safety and Environmental Impact: No bleach, environmentally friendly
Related Products
Up to 26% off
Wet & Forget Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Outdoor Cleaner Concentrate, Original, 64 Fluid Ounces
Wet & Forget Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Outdoor Cleaner Concentrate, Original, 64 Fluid Ounces
Type of Cleaner: Concentrated outdoor cleaner
Application Method: Dilute with water, use garden sprayer
Coverage Area: 375 - 1,125 sq ft
Safety and Environmental Impact: Bleach-free, non-acidic, avoid runoff
Effectiveness Duration: Up to a year
#10
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Buying Guide for the Best Roof Cleaners
Choosing the right roof cleaner is essential to maintaining the longevity and appearance of your roof. Roof cleaners help remove moss, algae, lichen, and other debris that can damage your roof over time. When selecting a roof cleaner, it's important to consider several key specifications to ensure you pick the best product for your needs. Here are the key specs and what you should know about them.Type of CleanerRoof cleaners come in various types, including liquid sprays, powders, and eco-friendly solutions. Liquid sprays are easy to apply and work quickly, making them ideal for immediate results. Powders often need to be mixed with water and can be more cost-effective for larger areas. Eco-friendly solutions are designed to minimize environmental impact and are safe for plants and pets. Choose the type that best fits your application method and environmental concerns.
Active IngredientsThe active ingredients in a roof cleaner determine its effectiveness against different types of growths like moss, algae, and lichen. Common ingredients include bleach, sodium hypochlorite, and copper sulfate. Bleach-based cleaners are very effective but can be harsh on plants and surfaces. Sodium hypochlorite is strong and fast-acting but needs careful handling. Copper sulfate is less harsh and offers long-term prevention. Consider the type of growth on your roof and any potential impact on surrounding vegetation when choosing the active ingredient.
Application MethodThe application method can vary from manual spraying to using a pressure washer or hose attachment. Manual spraying allows for precise application but can be labor-intensive. Pressure washers offer a quick and thorough clean but may damage delicate roofing materials if not used correctly. Hose attachments are convenient and easy to use but may not provide as deep a clean. Choose an application method that matches your comfort level and the condition of your roof.
Coverage AreaCoverage area refers to how much surface area a single unit of cleaner can treat. This is usually measured in square feet or meters. Larger roofs will require cleaners with higher coverage areas to be cost-effective. Check the product label to ensure it can cover the entire area of your roof without needing multiple applications. This will save you time and ensure consistent results.
Safety and Environmental ImpactSafety and environmental impact are crucial considerations, especially if you have pets, children, or a garden. Some cleaners contain harsh chemicals that can be harmful if inhaled or if they come into contact with skin. Eco-friendly cleaners are designed to be safe for the environment and less harmful to plants and animals. Always read the safety instructions and consider the potential impact on your surroundings when choosing a roof cleaner.
Effectiveness DurationEffectiveness duration refers to how long the cleaner will keep your roof free from moss, algae, and other growths. Some cleaners offer immediate results but may require frequent reapplication, while others provide long-term protection. If you prefer less frequent maintenance, look for products that offer extended effectiveness. This will help you maintain a clean roof with less effort over time.