Can Roof Cleaning Extend the Life of my Shingles?

That bacteria growth on your roof can really shorten the life of your roof. Here’s how a roof cleaning company can help.

Beth Downing had noticeable black streaks on the north side of the roof on her 20-year-old Noblesville home. Initially alarmed and fearing that those streaks signaled the need for a new roof, Downing spoke to a friend whose roof had once had similar streaking but was now streak free. Downing learned that she didn’t need to replace the roof. She only needed to have it professionally cleaned.

What is a roof cleaning?

Downing isn’t alone in having streaks on her roof. It’s not a sign of poor home maintenance. Rather, the unsightly dark splotches that streak across roofs are caused by bacteria known as gloeocapsa magma; often referred to as algae growth on the roof. The growth typically occurs on the north side or shaded area of the roof. Though there is little scientific evidence of the harm caused by the bacteria, industry experts concur that it can help deteriorate shingles and shorten the life expectancy of the roof.