If you drive around neighborhoods in Virginia, you will probably notice a number of roofs with black stains running down them. While some of these black stains may be caused by dripping asphalt, the large majority are probably the result of black algae. Gleocapsa magma is a type of algae that finds roofing materials extremely hospitable, and has been known to show up on many different types of roofing materials. As a roof ages, black algae is increasingly likely to show up.
Although black algae can be unsightly, it can fortunately be cleaned off using the right solutions and equipment. With the help of an experienced roofing professional, you can remove the algae, protecting your roof and returning it to it's
What exactly is black algae and why is it on my roof?
Black algae is seen all over Northern Virginia, usually on the shaded part of a roof or a part of the roof that is not exposed to heavy sunlight. The stain created by the algae usually runs down the roof as water carries it towards the gutters. Black algae finds nutrients in the roofing materials, which helps explain why algae growth has become more prevalent in recent years. More and more roofing shingles are being made with limestone to add weight, a material that black algae finds extremely attractive.
Black algae creates more problems than just unsightly stains. Because the algae is continually growing and dying off, it tends to hold moisture. The algae also deteriorates the roofing materials. As time goes on the presence of black algae will cause damage to the roof, eventually requiring roofing repair or even roof replacement.
Getting Rid Of The Black Algae On Your Roof
Luckily, there are solutions to the problem of black algae. You can get the algae cleaned off and get your roof back. But there are a few things to keep in mind when it comes to cleaning:
Don't Pressure Wash Your Roof!
If you are a DIY type at all, it can be tempting to grab a pressure washer and a ladder and make your way up on the roof, but this is a bad idea. The black algae may have deteriorated your shingles, and pressure washing them may just take the shingles right off. Even if the shingles are new, you still risk damaging the roof with a pressure washer. Besides, standing up on your roof while spraying highly pressurized water can be dangerous. It is better to leave the cleaning to the professionals.
Consider A Roofing Professional
You can find recipes online for solutions that will kill black algae, but applying these solutions can put you at risk of falling or other accidents. The mixture you use may also cause damage to the roof or to the surrounding vegetation.
When you hire a roofing professional to come and deal with the black algae, you know that your roof will be properly cared for. The roofing company can not only kill the algae using cleaning methods that are safe for the roof and the vegetation, but can also remove all the organic material from your roof and apply a special coating to retard algae growth.
Another benefit of hiring a professional is that if there has been any real damage to your roof from the algae, or from anything else, the roofing specialist will be able to recognize the damage and repair it. It is a good idea to have your roof inspected periodically anyway, so you can kill two birds with one stone when you have the algae cleaned off. After the visit from the roofing company, your roof will look much better, and you will know exactly what the state of your roof is.
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