My neighbor taught me this trick to clean green algae off siding with 0 effort. Here’s how it works

material such as dust or pollen

North-facing walls, areas behind shrubs, and siding located beneath gutters are especially vulnerable.

Once algae becomes established, rain and humidity can help it spread across larger sections of the wall.

 

The Easy Cleaning Method

The main trick is surprisingly simple: let the cleaning solution sit long enough to loosen the algae before you rinse it away.

You will need:

warm water
an exterior siding cleaner or oxygen-based bleach cleaner labeled as suitable for your siding
a garden sprayer or pump sprayer
a garden hose