Some good vinyl sider cleaner solutions include.
How do you remove moss from vinyl siding.
Step 1 clean the house siding to remove any moss that may already be growing on the surface.
Chlorine can also damage foliage and stain clothing.
Blend a moss killing solution appropriate for the siding material.
Less volatile than chlorine it removes mildew on and below the surface as well as algae dirt and oxidized paint but won t harm plants or clothing.
Test a small area.
If not the green discoloration may be mold.
For wood or aluminum siding combine one third cup powdered laundry detergent two thirds cups trisodium phosphate 1 quart bleach.
Fill a bucket with warm water and mix in the oxygen bleach powder according to the package directions.
For a stronger solution mix.
Oxygen bleach hydrogen peroxide.
Mix your cleaning solution.
Spray down the siding with plain water from the garden hose.
Dip the scrub brush into the solution and test it to see if it is effective at removing the staining.
Consider filling a bucket with warm water and dish detergent and soaking the bristles of your brush for a more effective clean.
Use a scrub brush to remove surface dirt and mold.
Wet the side of the house with a garden hose.
Begin by spraying a 5 foot wide section of the siding from the ground to the top.
If you are worried about damaging the vinyl you may use a lower pressure pump sprayer.
70 water 30 white vinegar makes a great all purpose vinyl siding cleaner that removes light mold and mildew stains.
Set the nozzle on medium force and begin at the top spraying the water down.
Pour the cleaning solution into a power washer.