Liberally mist areas with the heaviest buildup and discoloration then wipe them down by hand using a soft cloth or sponge.
Power washing mold off siding.
Rinsing with a pressure washer pressure washing is more effective if you do it while the mold is still wet from scrubbing.
Follow directions on any siding cleaner or power washer.
When you re finished rinse the entire surface with fresh clean water from a hose.
2900 to 3300 psi is a good range for paint stripping large areas second story houses.
Bleach solution one of the most popular alternatives to power washing your siding is detergent bleach and water.
Never start off on the highest pressure setting.
If your white siding is beginning to look a little green then this is the route you want to go as it is very powerful against mildew and mold.
Borax solution for cleaning mold off vinyl siding another cleaning recipe that is highly effective at cleaning mold and mildew from vinyl siding is a borax solution applied with a soft brush.
Always use caution when dealing with a harsh chemical like bleach.
If you re working in dry weather wet the siding down with a pressure washer or garden hose before scrubbing to loosen the grip of the mold.
Some good vinyl sider cleaner solutions include.
A pressure washer can quickly ruin vinyl siding by cracking it with the high pressure stream of water so it s necessary to know which pressure level and nozzle to use.
Scrub away mold and mildew by hand.
For a stronger solution mix.
Shop all pressure washer house and siding soap.
Apply the detergent and let it sit for 5 to 10 minutes.
Combine one part normal household bleach with ten parts water in a spray bottle.
Use a soft bristled brush to lightly scrub away mold and mildew stains for all solutions.
Gas pressure washers are more powerful than electric ones.
70 water 30 white vinegar makes a great all purpose vinyl siding cleaner that removes light mold and mildew stains.
Reapply water to any surfaces that begin to dry.
Most electric pressure washers run up to 2000 psi which is suffice for most common pressure washing surfaces around the house.
Borax can also be part of a permanent remedy for black mold treatment on vinyl siding or to clean mold from wood on your deck.
Homemade mold cleaning recipe for siding cup trisodium phosphate tsp cup powdered laundry detergent 1 quart household chlorine bleach 1 gallon water.
Part 3 of 4.
A garden sprayer can be helpful in applying the various cleaning solutions to the siding.
Starting low and gently working your way up is the safest bet.