Remove Mold and Algae from Your Roof

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Nathan Wood

Owner and Operator

How to Clean Extreme Mold and Algae on Asphalt Shingles

Every time you turn into your driveway, you are embarrassed about your home’s roofline with the mold and algae growing on it.

You feel like it is a wild moss nature trail that is OUT-OF-CONTROL, as pictured in this feature image. Your home, the nature reserve of the neighborhood. At night, you can feel the algae eating away at the limestone in the shingles, and they’re just getting weaker each month you don’t address this plague on your home. Ok, hopefully, this is overdramatized, and we certainly hope your roof does not look like this.

But, it is not the time to pull out that 3,000 psi power washer with the super toxic harsh chemicals. Using toxic chemicals like chlorine bleach can remove the mold, but it is harmful to your plants and grass. Power washing the mold away can remove the granular material on the shingle. The Mineral Granules are added to the shingle to protect it from excessive sun exposure. These granules are also added to increase fire resistance to your roof. Plus, if you hit your shingle with narrow, high-pressure spray, it could leave streaks in the single that everyone will see.

Our solution to this problem is simple. Once a year, inspect your roof for mold condition. If you have a problem, apply this product called Wet & Forget to your home.

The Wet & Forget Product for Mold and Algae Removal

The Wet & Forget Outdoor product is non-acidic and contains no bleach. It can be used on any outdoor surface material. Wet and Forget Hose End is recommended for large surfaces and high elevations. Some of the more popular surfaces include Roofs, Siding, Decks, and Driveways. Exterior Home Surfaces include Decks (All types), Driveways, Eaves, Gutters, Patios (All types), Roofs (All types), Shingles (All types), and Siding (All types). Materials that this product can be safely applied to is Aluminum, Asphalt, Brick, Cement, Ceramic, Clay, Composite, Concrete, Dryvit/EIFS, Fabric, Fiberglass, Flagstone, Limestone, Marble, Metal, Natural, Painted, & Stained Wood, Painted Surfaces, Plastic, PVC, Rubber, Sandstone, Slate, Steel, Stone, Stucco, Teak, Textured Surfaces, Tiles, Tin, and Vinyl.

Details on applying Wet & Forget to your home

Apply Wet & Forget on a cool, windless day with no rain forecast for 4-5 hours after application. Typically, the evening or early morning is the best time to apply the treatment when evaporation is minimal. You want the treated surface to stay wet long enough for the product to treat the surface properly. Apply Wet & Forget Xtreme Reach™ Hose End at any temperature above 55 degrees.

What is the coverage area of Wet & Forget? You would want to apply a 48oz bottle over 2000 square feet on average. Don’t worry about the pitch of the home. Just take the width of the home and divide it in half. If your home is 80 feet wide, calculate the application by taking 2000 divided by the ½ the house width, which will give you the length of coverage across the front roofline. 2000/40 = 50 feet. If you apply this to the roof, start at the top of the roofline and work your way down. Then move to the next section of the home.

The spray jet will reach areas up to 30 feet depending on your home’s water pressure and volume capacity. If you have a power sprayer you can use the Wet & Forget concentrate in the soap dispenser to disperse the treatment. If you purchased the tool by Janz you will be able to apply Wet & Forget just about anywhere on your home. If you have two or more stories on your home this tool is perfect for cleaning those bugs, nests, and dirt off the side of your home, plus you don’t have to haul-out the ladder.

Use Janz Attachments with a power washer to apply Wet & Forget on Roof Mold

The following images are examples of the results that you could achieve around your home with the Wet & Forget Product.

Apply wet & forget on vinyl siding
apply wet & forget on roof shingles
apply wet & forget on brick walls
apply wet & forget on chemey
Nathan Wood - Owner and Operator of Ethical Exteriors

Nathan Wood

Technical Blogger Editor

As the owner and operator of Ethical Exteriors  Inc., all of us are working hard to bring you quality content on materials, products, and tools that will help you maintain the exterior of your home or building. 

Nathan Wood

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