Blue-green algae spreads via the wind and they favor humid and moist environments and harbor nutrients from dust. These microorganisms usually settle on the north side of the roof where there is less sun exposure and more moisture.
Roof Algae and Asphalt Shingles
Asphalt roofs have limestone that makes them heavy and durable. Blue-green algae slowly consume the limestone over time.
Blue-green algae can work together with a fungus to create lichen. Eventually, tiny bits of grass will be growing on your roof.
Treatment and Prevention
If you have blue-green algae on your shingles, you don’t have to worry because there are different ways you can rid your home of these organisms.
There are cleaning solutions consisting of 50/50 chlorine bleach and water that you can use to remove stains and stop algae growth.
Roof maintenance can prevent the growth of blue-green algae. You may also use copper and zinc strips and install them at the roof ridge where rainwater will carry algae-preventing ions all over the roof.
Contact Kingsport Roofing Pros for seasoned roofing pros to repair or replace your roof in Kingsport area at 423-205-6675.