How To Remove Roof Algae And Mildew

If you re looking for a gentler yet still effective solution clean with other products including tsp bleach and water.

How to remove roof algae and mildew. A mixture of trisodium phosphate tsp bleach and water will also remove stains. This will prevent the solution from draining in your direction. Bleach mixtures can injure sensitive plants. One way to clean the roof of algae and moss is with a brush and a little grunt work scrubbing and separating the greens from the roof.

Constant rain and increased heat create the perfect breeding ground for mold mildew and algae. The less expensive solution is to spray wash the roof with a 50 percent mix of water and bleach to get rid of the algae. Roof cleaned with oxygen bleach left and chlorine bleach center. The most common class of roof algae is gloeocapsa magma a bacterium that eats water and expels oxygen.

Using a plastic pump type garden sprayer thoroughly soak the affected area with your choice of chemical. In most cases a gentle power washing or brushing with a soft bristled brush will be enough to remove the moss or algae from the surface of the roof. Video of the day. You may think you have roof algae when really you have moss mildew or mold.

Spray the entire roof thoroughly. Start on lowest row of shingles and work your way backwards to the upper part of the roof. Although commercial products clean and kill unwanted growths homemade cleaners offer a cheaper alternative. A mixture of trisodium phosphate tsp bleach and water will also remove stains.

How to use bleach mixtures on your roof. Roof algae generally have a black green hue. In other cases the roof is simply too damaged and new roofing will be needed. Brushing should start at the top and work down as going up could mess up your shingles.

Because it is difficult to totally protect them from the mix spray them down with clean water before. Bleach shouldn t be used either because it can damage your roof. Algae grow most often on wood and asphalt shingles or concrete tiles especially if they do not get a lot of sunlight. Oxygen bleach lightens stains as well and is less harmful to the environment but it doesn t produce as immediate or dramatic an effect as chlorine bleach.

No pressure washers please. There are several products on the market specifically designed to remove algae stains from roofs such as wet forget outdoor. They re likely to damage the shingles just be sure to wet your foundation plantings first and rinse everything in clean water when you re done.