How To Get Algae Off Roof

A copper strip at the top of the roof can prevent future roof algae.

How to get algae off roof.

Most cases of roof algae or fungus start with a single spore finding its way to your home. However the force of the water can cause your shingles to lose their protective granules. Hose off the area with plain water spraying at a downward angle. Let it stand on the surface for about 20 minutes then rinse it off with spray from a garden hose.

Pressure washing can even tear shingles off your roof. How to clean algae and moss from a roof apply the bleach solution with a garden sprayer. Some homeowners also try to get rid of algae by using bleach. How do i get rid of algae.

There are several products on the market specifically designed to remove algae stains from roofs such as wet forget outdoor. Thousands of roof on homes and other buildings suffer from black streaks. We use chemical solutions that are approved as safe from shingle manufacturers and a low pressure soft wash technique that doesn t cause damage. We use a softwashing technique at sherwood roof cleaning power washing to clean roofs here in fairfield county.

The wind can blow a spore onto your roof and from there it will take off if the conditions are conducive enough. Theoretically rainwater picks up algae killing ions and spreads them over the roof. You might think that pressure washing is the best way to remove algae. Don t let the bleach solution stand on the roof for more than 30 minutes or so without rinsing.

The inorganic materials found in your roof will allow the algae to survive spread and darken. In reality the protection falls short because algae can still feed off humidity when it s not raining. The roof algae is doesn t harm the shingles but looks bad. A less expensive and less extreme method is to create a cleaning solution for the roof.

But you don t have a lot to lose by trying it. There are two ways to slow the regrowth process. Softwashing to remove roof algae moss. But that would only make sense if the shingles were worn out.

Then use a long handled soft bristle scrub brush to remove the moss from the roof scrubbing from the top down to avoid lifting. One is to install zinc or copper strips along the entire ridge. This option only makes sense if the shingles are already worn out and ready to be replaced. After all the copper granules are lethal to algae.

How to get rid of algae on the roof you could replace all the roofing with new shingles dark enough to disguise the staining or with shingles laced with copper granules which are lethal to algae. To do this mix 50 percent water with 50 percent bleach.