Bellevue Roof Cleaning – Moss & Algae – Your Guardian Roof

Thank you for checking out our roof moss and algae video. If you’re like most people, you’re probably wondering what is roof moss and does it damage my roof?

Let’s start with algae. Algae is the black staining that you see on roofs. It looks bad and is usually followed by moss. That’s the green fluffy stuff you see on the roof. And when you add tree debris, like needles and leaves, then these issues can be compounded. Not only does this stuff look bad, but it’s also very destructive. The tiny moss roots dig into your roof and pull away at the surfacing. This reduces the roof life. And when it creeps under the roofing material, it breaks the seal which makes it vulnerable to wind blow-off.

In this example, you will see where moss has eaten a hole in the roof. You can also see when moss is brushed away, the roof granule surfacing is being compromised. This makes the roof vulnerable to UV degradation.

So, how do you keep the roof clean? There are some common methods. One is to use a zinc strip. Zinc does kill moss, but typically only for a few feet down the roof and only for a limited time. As you can see here, moss is growing right on top of the zinc in the photo. On top of that, you also have to nail through the roof to install the zinc strip, which is also a bad idea. Other people want to use a zinc or chlorine-based detergent on the roof. These are corrosive chemicals that are bad for the environment, and the worst part about these products is that they don’t keep the moss from coming back. And lastly, there is pressure washing. This can damage or even destroy the roof.

So, we’ve developed the Guardian Solution. We start with a professional consultation and diagnosis. Then we use our gentle process to remove the big moss and debris from your roof, which exposes the algae. We then apply our environmentally safe algae loosening solution and gently rinse away the leftover debris leaving a clean and safe roof. Our process works for asphalt composite, concrete tile, and wood shake. And of course, it does make a big mess while the job is being done, but don’t fret, our professional technicians thoroughly clean up before they leave.

So, if you have moss and algae issues, give us a call at 877-926-9966, or schedule a free inspection online.