Certified Soft Wash Specialists

Certified Soft Wash Specialists
Moss Covered roof.

April 23, 2012

Black Streaks on Roof


Algae’ growing on roofs is a country wide issue. In case you didn’t notice, algae growth on roofs was not an issue 30 years ago. At a certain point along the road the shingle manufacturers decided that adding Limestone as a filler in their shingles was the best choice. What they did not foresee however was that there is a type of algae that loves to eat the stuff! Not only that, but once coupled with warm weather and a little humidity it is off to the races.  Michigan is a great place for the algae to flourish.

Now that the roofing companies have witnessed the error of their ways, they have taken action.  Most quality shingles that are being produced these days are algae resistant (AR). The key word you need to take notice of here is “resistant”. They are not algae proof and they may never be. The common length of algae resistance is said (by the manufacturer) to be 10 years although the shingle that they are selling is supposed to be a 30 year shingle. The math is easy to do, and the customer is the one that is left with at least 20 years of algae issues.

Mother Nature is putting up quite the fight, and there is only one thing that you can do about it. That one thing is to either clean your own roof or hire a roof cleaning professional. Roof cleaning is very important and if it is not done and done right, you will literally shave years off your roof’s life span.

Roof Algae and the roof cleaning it necessitates’ is going to be existent for a long time to come. As long as it is, we will be here to provide you with the most up-to-date methods and techniques for battling algae.

Once the black streaks (algae) appear on your roof, they will just keep spreading out along the whole roof and if nothing is done about it, your shingles will fail long before they should have. With the help of Roof Cleaner  you can get those black streaks off your roof and thereby extending the life of your shingles.

NEVER allow a pressure washer to be used on your roof, nor should you allow a roof scrubber to clean the shingles. Both of these processes can cause damage to the shingles.

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