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What Are the Black Streaks on Your Roof?

What are the black streaks on your roof

If you have noticed black streaks on your home's roof, you aren't alone. These streaks are made by a bacteria called gloeocapsa magma, more commonly known as blue-green algae or black algae. As gloeocapsa magma grows, it starts to look like unsightly black or dark green streaks and stains on your roof.

Gloeocapsa magma travels as spores on the wind, which is how it comes into contact with your roof. Once it lands on your roof, it finds a shaded, cool spot to start growing. Gloeocapsa magma tends to appear in the more humid months when temperatures get warmer. The humidity helps promote the growth of this bacteria.

Why is Gloeocapsa Magma on my Roof?

The reason these bacteria find a home on your roof is because of the asphalt shingles there. Asphalt shingles are made with limestone filaments. Gloeocapsa magma feeds on the calcium carbonate in limestone in your shingles. The natural moisture that collects on your roof also helps to promote the growth of gloeocapsa magma.

As the gloeocapsa magma feeds off the limestone over time, it breaks down the protective barrier meant to keep your home safe. Over time, this weakens your shingles and can lead to damages to your roof. It will also inevitably shorten the lifespan of your entire roof.

Without a proper roof washing to clean away any gloeocapsa magma, the algae can build up over time and combine with other algae on your roof to create a lichen barrier. This can catch seeds from bird dropping that sprout on your roof. By the time seeds are taking root on your roof, it's past time to get a new roof.

The Fight Against Gloeocapsa Magma

The good news is that cleaning away gloeocapsa magma is a fairly simple process. To be truly harmful and to break down your roof, gloeocapsa magma needs to fester for years. By working with a reputable pressure washing company the moment you notice black streaking on your roof, you can ensure your roof is safe from damages.

The pressure washing experts at Property Shine Cleaning and Restoration offer professional roof washing. Roof washing is the best way to get rid of gloeocapsa magma on your roof through a safe, thorough cleaning option.

Our roof washing option utilizes professional soft washing, which is a low-pressure washing option that is perfect for your more fragile outdoor surfaces. Soft washing begins with an application of eco-friendly, biodegradable cleaners that break down the layers of bacteria, mold, mildew, and algae that have built up on your roof.

Once these cleaners have had time to work, they're then washed away with a gentle water-bleach mixture that cleans and sanitizes your roof. Not only will this cleaning option break down the gloeocapsa magma already growing your roof, but it will also break through the lichen barrier to leave your roof clean and clear.

To learn more about the professional roof washing service offered by Property Shine Cleaning and Restoration, call us today and speak to our pressure washing experts.

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