My neighbor taught me this trick to clean green algae off siding with 0 effort. Here’s how it works
How to Keep the Algae From Coming Back
Cleaning removes the existing growth, but reducing moisture can help slow its return.
Try to:
trim shrubs and branches away from the house
improve sunlight and airflow around shaded walls
keep gutters and downspouts clear
repair leaking gutters
redirect sprinklers away from siding
rinse pollen and dirt from shaded walls occasionally
Keeping the surface drier makes the environment less favorable for algae.
How Often Should Siding Be Cleaned?
There is no fixed schedule for every home.
A sunny, dry wall may remain clean for years, while a shaded wall in a humid environment may develop green staining much sooner.
Inspecting the siding once or twice a year is usually enough to catch algae before it becomes heavily established.
One Important Detail
