Use ammonia cleaners or a solution of one part bleach in four parts water to clean mold and mildew stains.
Bleach to wash siding.
You will need a pump sprayer.
Water any grass plants flowers or other foliage surrounding your cedar siding.
Cleaning vinyl siding with bleach water step 1.
Wet down surrounding plants and landscaping with plain water.
Work in small sections approximately three to five square feet in size.
Close all windows and doors to the home.
Cover them with plastic sheeting for further.
I find that a two gallon sprayer is a good size.
A hose with a.
Using a soft bristle brush work the cleanser into the siding to remove all remnants of mold and grimy residue.
This will protect plants from any possible damage to the greenery from bleach runoff.
If you have a two story house you will need to use a ladder.
Your standard household whitener.
How to use bleach to clean vinyl siding step 1.
Courtesy of rust oleum when mildew gains a foothold homeowners often turn to diluted chlorine bleach sodium hypochlorite a k a.
Pure bleach damages the vinyl causing it to wear down over time.
This bleach free wet and forget formula harnesses the power of ammonium chloride to eliminate mold mildew moss and algae from vinyl siding and virtually any outdoor surface without harming.
It appears to make mildew vanish but on porous surfaces such as wood or vinyl siding chlorine evaporates too quickly to get to the fungi s roots guaranteeing regrowth.
Recipe homemade mold cleaner for siding 1 2 cup trisodium phosphate tsp 1 3 cup powdered laundry detergent 1 quart household chlorine bleach 1 gallon water.
Cedar shake siding requires special care as some harsh chemicals could cause it to discolor or even wear prematurely.
Clean the outside of the house with bleach and water to remove mildew algae.
For a stronger solution mix together one third cup powdered laundry detergent two thirds cup powdered household cleaner one quart liquid laundry bleach and one gallon of water.
Use caution make sure your ladder is.
Whenever using bleach on vinyl siding make sure to always dilute it in water first.
However never mix ammonia and bleach rinse thoroughly while the siding is still wet.
Turn off the power to exterior electrical units.