To most effectively clean away the algae high water pressure can force out any growth that has gotten down in the pores of your concrete.
Power washing roof algae.
After power washing the concrete algae will have a harder time returning than if you simply used a broom and a little soapy water.
All in all hiring a professional like perfect power wash to remove algae from your roof is an easy decision.
There are several products on the market specifically designed to remove algae stains from roofs such as wet forget outdoor.
Instead spray down the roof with a cleaner that kills mold and moss or apply a 50 50 mixture of bleach and water in a pump sprayer and let the moss die on its own.
That way whenever it rains some of the metal molecules will wash down the roof and kill any algae trying to regain a foothold on your shingles.
Pressure washing in which highly pressurized water is sprayed on the roof to remove any mold algae dirt or grime and chemical cleaning sometimes called soft washing in which chemicals are the main thing that are removing those harmful things from your roof.
A mixture of trisodium phosphate tsp bleach and water will also remove stains.
Our roof treatment utilizes a low pressure soft wash with biodegradable cleansers to safely and effectively restore the look of your roof.
To keep the algae from coming back insert 6 inch wide strips of zinc or copper under the row of shingling closest to the roof peak leaving an inch or two of the lower edge exposed to the weather.