By KC Power Clean – Bakersfield, CA
The Culprit: Gloeocapsa Magma
If you’ve noticed unsightly black streaks or green patches on your roof, you’re not alone. These stains are often caused by Gloeocapsa magma, a type of cyanobacteria, not algae, as commonly believed. This microorganism thrives on the limestone filler found in asphalt shingles, feeding on moisture and organic matter. Over time, it produces a dark pigment to protect itself from UV rays, leading to the characteristic black streaks. As the colony grows, it can degrade the shingles, reducing their lifespan and the roof’s energy efficiency.
The Science of Roof Stains
Understanding the science behind these stains is crucial for effective cleaning. Gloeocapsa magma thrives in shaded, moist environments, often on the north or west sides of roofs. The bacteria’s growth can lead to granule loss on shingles, compromising their protective layer and making the roof more susceptible to damage from the elements.
The Cleaning Solution: Soft Washing
At KC Power Clean, we employ a safe and effective method known as soft washing. Unlike traditional pressure washing, which can damage shingles, soft washing uses a low-pressure spray combined with a specialized cleaning solution. This solution typically contains sodium hypochlorite (bleach), which kills the bacteria, and a surfactant to help the solution adhere to the roof’s surface.
The process involves applying the solution to the affected areas, allowing it to dwell for 15–20 minutes to ensure thorough penetration, and then rinsing with low-pressure water. This method effectively removes stains without harming the shingles or the surrounding landscaping.
Preventing Future Growth
While cleaning removes existing stains, preventing future growth requires ongoing maintenance. Trimming overhanging tree branches allows more sunlight to reach the roof, reducing moisture retention. Regularly clearing debris and considering the installation of zinc or copper strips near the roof’s peak can help inhibit the growth of Gloeocapsa magma.
Why Choose KC Power Clean?
As a locally owned business in Bakersfield, CA, KC Power Clean understands the unique challenges posed by our climate. Our team is trained in the latest soft washing techniques and uses eco-friendly solutions to ensure the safety of your home and the environment. We take pride in restoring the appearance and longevity of your roof, providing you with peace of mind and a cleaner, more efficient home.
