Black Streaks on Roof

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Chemical Cleaning to Remove Black Streaking from Roofing

Gloeocapsa Magma is the scientific name for those black streaks on your roofing. Gloeocapsa is a form of algae that lives in wet humid climates. These streaks of black are not as evident in the Seattle-Tacoma region due to the majority of roofing material being of dark coloring. If your roofing substrate is light colored, it’s very probable that these stains will be found on your home.

Although, Gloeocapsa Magma is not harmful to roofing, the appearance of a home suffers tremendously. When selling a home the algae stains should be an issue that is dealt with before the home is placed up on the market. These stains are a red flag to potential home owners who may not know exactly what that black stuff is and whether or not it’s harmful to the roofing.

Soft wash roof cleaning with chemicals is a superior method of removing Gloeocapsa. This method of roof cleaning gets rid of these unsightly black streaks while keeping the integrity of the roofing intact. Power washing is not as effective at eliminating Gloeocapsa. It is also very damaging to roofing shingles. Read more here………….

In the picture to the left, a chemical solution is sprayed on the roof. Each chemical in the mix does a certain job. Within 25 minutes, the picture to the right shows the roof stains are almost completely gone. The mix continues to work on the stains and streaks until the next day of rain. After the roofs first shower, the roof is looking its best.

Going from being a white roof covered in black to being a white roof again has strong selling value for a home. Soft Washing is a great way to safely and effectively remove black streaks from your roof in Seattle. Whether your home is up on the market or you just don’t like coming home to a dirty roof, consider chemical cleaning when hiring a roof cleaning contractor.


 

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