WHY ARE THERE DARK STREAKS ON MY NORTH GEORGIA ROOF AND HOW DO I GET RID OF THEM?

What Is Causing The Dark Streaks And Stains On My Shingles?

The most predominate filler used in shingles, because it is so plentiful and inexpensive, is limestone. It is the calcium carbonate in limestone that Gloeocapsa Magma algae really likes to feed off of, along with moisture that naturally collects on a roof’s surface. Once the algae growth becomes noticeable as those dark streaks on the roof, gravity and rain water carry the spores down the roof, causing the commonly seen pattern of streaks extending downward on the roof.

Will Algae And Lichen Damage My Shingles?

Algae is not harmful or dangerous alone, but as the algae feeds off of the calcium carbonate in the limestone over time, it will likely shorten the lifespan of the shingles.

Fungus, which also travels through the air, can combine with algae already present on your roof and form lichen. Lichen feeds off of both the algae and the calcium carbonate in the limestone filler. Unlike algae, lichen can develop roots, which makes it harder to remove than algae alone.

Can I Use A Pressure Washer To Remove Gloeocapsa Magma Algae And Lichen From My Roof?

While cleaning your roof, never use a pressure washer! Asphalt shingles have a top coating made of granules. Granules are your roof’s first line of defense against moisture. When you use high pressure to wash your roof, you may wash away some of those essential granules or even cause some shingles to lift.

What Is The Preferred Way To Clean Your North Georgia Roof?

Soft washing is the only safe and effective method for cleaning shingles and is the only method recommended by the Asphalt Manufactures Roofing Association.

Does Keaton's Pressure Washing, LLC Clean Roofs By Soft Washing?

Yes! When we clean roofs, we use low pressure to apply algaecide and soap, and then allow the soft wash solution to dwell as long as possible. As the soft washing solution dwells, it quickly kills off all of the algae and lichen on the shingles. It is so effective that the roof will likely be "Algae Free" within just a few hours! Lichen, because it is rooted to the shingles, will likely need several rounds of rain to completely remove it from the shingles.

Our roof cleaning service will remove the dark discoloration and streaks, restore the original color of the asphalt shingles and includes a 1-Year "Algae Free" Warranty. If your North Georgia home needs a roof cleaning or any of the other pressure washing services that we offer, contact us and we will come to your home and give you a free estimate.

Our service area includes Dawsonville, Dahlonega, Gainesville, Cumming, Alpharetta, Milton, Flowery Branch, Buford, Ellijay, Jasper, Big Canoe, Cleveland and Clermont, GA.

Location: Dawsonville, GA