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

a soft-bristle brush for stubborn areas
gloves and eye protection

 

Always check the siding manufacturer’s cleaning recommendations first, especially for painted wood, fiber cement, aluminum, or older surfaces.

Step 1: Protect the Area Around the Wall

Before applying anything, move furniture, decorations, and other objects away from the siding.

Lightly rinse nearby plants with clean water. You can also cover delicate plants temporarily while you work.

 

Close windows and doors so the cleaning solution does not enter the house.

Step 2: Rinse Away Loose Dirt

Use a garden hose to