Blue-green algae is one of the most common problems that homeowners have to deal with. Also known as Gloeocapsa magma, this problem shows up not just on the roof but also on the siding and in parts of the window. Our window replacement experts talk about how blue-green algae can affect your home and how to properly deal with it.
Where Does It Come From?
Blue-green algae show up when invisible airborne spores land on a surface. Areas of the home that tend to trap moisture become a breeding ground for the spores, causing the algae to form into a huge mass. While blue-green algae starts as dark green spots, they can also turn into a darker, almost pitch-black color.
Effects on the Roof
At first glance, blue-green algae seems like nothing more than a cosmetic issue. However, that’s not always the case. Siding replacement experts say that algal growths tend to absorb water, further increasing the amount of moisture trapped in an area. This makes it more likely for moisture-related problems such as corrosion and warping to cause more damage to affected parts of the home.
Dealing with the Algae
Many homeowners will probably use a power washer to get rid of the unsightly algae growths. However, the washer itself can cause abrasions on the affected surface, actually doing more harm than good. The most effective method of getting rid of algae involves using a mix of oxygen bleach and diluted with water. Wash the affected surface with the mixture, leave if for a few minutes, then wash it down with clean water.
Prevention Is Better than Cure
Some parts of the home can be made algae-resistant by installing copper or galvanized iron strips. A commercial roofer can use this method for keeping roofs safe because those two metals actually have a toxic effect on the spores. This can also be done to the siding, and windows, although some would recommend replacing severely infested components.
Let us help you deal with blue-green algae. BFARR Contracting is the leading home exterior contractor in Winter Park, FL, and nearby areas. You can call us at (321) 444-6446 or fill out our contact form to request a quote.