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What Is Roof Algae and How Do You Fix It?

Posted on January 10, 2020

Roof Algae Removal Quad Cities

Your roof is exposed to the elements throughout the year, and if you're not careful, those elements can start to wear down your roof. Roof algae sometimes has the appearance of mold, and it can cause dark stains on your roof as well as weaken your roofing materials. If left unchecked, roof algae will only spread and worsen, so it's best to know how to find it and how to stop it early on.

What Causes Roof Algae?

Roof algae is most likely to form in humid environments and in shade. It might appear in dark corners of your roof or under the shade of overhanging tree branches. Because algae needs both dark and moisture, it can also be the result of water damage to your roof or it could be an indicator of roof rot. If your gutters are congested and unable to funnel water off the roof, your roof will be more susceptible to roof algae. It starts small — just one spore is enough for algae to take root and spread. Because of the similarities, it's no wonder that roof algae is often confused for mold.

How to Recognize Roof Algae

The first thing to look for is dark spots and discoloration along your roof. When roof algae dies, it causes long black streaks along your roof, and they can be quite conspicuous. While algae is different from mold, it can look similar to mold, appearing as green or white spots attached to shingles at the corner of your roof. Again, look at the shaded areas of your roof — corners or spaces under overhanging branches. If you see something that appears mossy, you likely have roof algae.

How to Get Rid of Roof Algae

Trying to remove algae on your own can pose health risks and may not be effective if you're not already an expert when it comes to roofing. That's why it helps to call in a professional like Mainstream Home Improvement. You can, however, prevent further issues with roof algae by trimming overhanging tree limbs, cleaning your roof gutters regularly, and installing protections like a synthetic felt to help protect your roof from the risk of roof algae in the future.

Need help to rid yourself of roof algae? Contact Mainstream Home Improvements today for more information or a free estimate.

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