1 Gal. Defy Roof Stain Blocker

Item Code: 5SS-300127

Availability: In Stock, Only 6 left, Ships in 1 to 2 business days.



$0.80 (4.78%)



DEFY Stain Blocker For Roofs is an effective way to block many stainsfrom reocurring and helps to maintain the appearance of recently cleanedasphalt roof shingles, tile roofs, cedar roofs, and more. DEFY Stain Blocker is alsoeffective on nearly any exterior painted or unpainted hard surface oncestains have been removed.

Product Details

Prevent black roof stains from returning as quickly

DEFY Stain Blocker helps prevent algae stains from returning. Once the roof has been properly cleaned and rinsed it should be treated with DEFY Stain Blocker. This milky white liquid treatment dries to a clear natural look. Simply spray on cleaned asphalt shingle roofs to form an invisible barrier that blocks the return of unsightly roof stains.

This product contains no acids, caustics, or bleaches, will not harm plants when used as directed and treats approximately 250 sq. ft. per gallon on roofs.

Maintain your roof's good looks

Maintenance coats of Stain Blocker for Roofs can be re-applied every 2-3 years or at the first sign of stain return to help block further staining. The frequency of maintenance coats will depend on many factors. Climate, orientation of the roof and surrounding trees are just a few of the factors that determine the algae growth. In extreme cases maintenance coats may need to be applied yearly. In ideal situations maintenance coats may only be needed once every five years.

DEFY Stain Blocker is ready to use. Do not dilute.

  • Maintains appearance of roofs
  • Long lasting
  • Environmentally friendly
  • Economical

      Product Information

  • Additional Information

    • Size: 1 gallon
    • Coverage Rate: Approx. 250 sq. ft. per concentrated gallon on roofs
    • Application Method: Pump sprayer
    • Rinsing Method: Do not rinse off. Spray on then allow to dry.
    • Dry Time: 1-8 hours depending on temperature and humidity
    • Cleanup: Soap and water
    • Long lasting
    • Environmentally friendly
    • Economical
    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 300127
    Made In USA
    Product Type Cleaners
    Shipping Weight (lbs) 8.9000
    Actual Weight (lbs) 8.9
    International Shipping Yes



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