Wash the whole house with a mix of common laundry detergent and water through a presser washer once a year.
How to remove algae from aluminum siding.
How to clean algae off of aluminum siding.
To clean aluminum siding having mildew use a solution of one part bleach and four parts water.
Spray this mixture on remaining spots.
Water stains remove with a mild detergent and water.
Stains on wood cleanse with mild detergent mixed with water.
It s not uncommon to have a mildew problem on aluminum siding depending on where you live.
Create a mix of bleach and water 1 tsp.
For those tough spots use a gentle.
To 1 quart and use it in the same power washer as step 1.