1 Gallon Defy Roof Cleaner Concentrate

Item Code: 5SS-300129

Availability: In Stock, Only 4 left, Ships in 1 to 2 business days.



$1.25 (4.77%)



DEFY Roof Cleaner is a fast, effective way to clean and restore the appearance of asphalt roof shingles, tile roofs, cedar roofs, driveways, sidewalks, patios, vinyl siding or nearly any unpainted hard surface that has been badly stained by algae or by mildew.

Product Details

DEFY Roof Cleaning Products for Removing Black Algae Stains

The most common culprit causing the black streaks on roofs is a blue-green algae called Gloeocapsa magma. Over the past 25 years this strain of algae has become hardier and has migrated to less humid environments. It has now become a common sight on asphalt roofs across 80% of the United States. This unsightly growth usually occurs on the north or west side as well as shaded areas of the roof. As the algae grows and decomposes, it holds moisture, which accelerates its growth.

DEFY Roof Cleaner is a fast, effective product for roof shingle cleaning and is the safest way to clean and restore the appearance of your roof.

One gallon of roof cleaner concentrate makes 7 gallons and will cover 700-900 square feet, depending on severity of stains and roof texture. Using roofing cleaning products like chlorine bleach or sodium hydroxide will accelerate corrosion of metal gutters, downspouts, flashings, and roofing fasteners. Sodium hydroxide is the active ingredient found in many paint strippers, oven cleaners and drain cleaners. It is caustic and high concentrations may cause irreversible damage to asphalt shingle roofs. Besides the obvious health risks of handling sodium hydroxide and chlorine bleaches, strong bleach solutions will damage almost any hard surface that comes in contact with it. Asphalt shingles are no exception.

DEFY Roof Cleaner is the first effective roofing cleaning product that does not rely on harsh chemicals like chlorine bleach or sodium hydroxide.

It strikes a perfect balance between aggressive cleaning and not being harmful to the roof or surrounding vegetation. It's made of an optimized blend of detergents, coupled with a unique buffered Sodium Metasilicate a chemical made from sand and soda ash, which is recognized as a non-pollutant. For severe stains, especially on lighter colored roofs, multiple applications may be required. In some cases, complete stain removal may not be possible.

  • Restores appearance of asphalt roofs
  • Contains no harmful chlorine bleaches or sodium hydroxide
  • Biodegradable
  • Economical concentrate

      Product Information

  • Additional Information

    • Size: 1 gallon concentrate
    • Coverage Area: 700 - 900 total sq. ft. per concentrated gallon when diluted 6:1.
    • Each gallon of concentrate makes 7 gallons
    • Restores appearance of asphalt roofs
    • Contains no harmful chlorine bleaches or sodium hydroxide
    • Biodegradable
    • Economical concentrate
    • Cleanup: Soap and water
    Additional Information

    Roof Cleaning Steps

    Step 1: Clean 
    Wet the section of the roof down that you will be working on first. Apply the Roof Cleaner Concentrate using the Roof Cleaner Applicator tool. Spray this on the roof and allow it to set for 15 minutes. (Make sure it remains wet. If it dries out, spray more cleaner or some water on it to keep the cleaner active)
    Step 2: Rinse 
    After attaching the Roof Rinsing Tool to the end of your hose, turn on the water, then turn on the utility water pump. Start at the peak of the roof and work your way down towards the gutters, rinsing the Roof Cleaner Concentrate off the roof.
    Step 3: Block 
    After the entire roof has been cleaned and rinsed, apply the Stain Blocker for Roofs using a pump sprayer. This can be applied to a damp roof, and does not need to be rinsed off.
    Brands Defy
    Model 300129
    Made In USA
    Product Type Cleaners
    Shipping Weight (lbs) 10.2500
    Actual Weight (lbs) 10
    International Shipping Yes



    Our Warranty, Return & Exchange Policy

    Visit our No-Risk Warranty

    Visit our Automated Returns, and we'll guide you through the quick and easy return and exchange process.

    Estimate Shipping