No need to dilute in the bottle the water from the hose will do that for you.
Straight bleach for siding.
This tough as nails siding responds well to cleaning with clorox bleach provided it is properly diluted with water 5 1 applied and scrubbed in 10 12 foot sections and rinsed extremely well.
Cedar siding can add an attractive rustic charm to your home but in some instances your siding may require a thorough cleaning with powerful solutions.
Pressure wash the siding on your house.
I have no idea what your cannon injection rate is but let s say it is a 10 1 water soap ratio.
Oxygen bleach is completely safe for all composite decking vinyl siding fiber cement siding and outdoor furniture of all types.
Bleach solutions can effectively remove mold and mildew from your house s siding.
I have some roof shingle mold mildew and was going to try jay j s suggestion of 1 cup bleach to 1 gallon water but was concerned that the bleach would damage the asphalt aspect of the shingles.
Here s some math for you.
In the pump sprayer combine 2 cups of bleach with 1 gallon of hot water.
However it will make the black spots easier to see and may loosen or dislodge some of them.
Spray the bleach solution on the mold.
Since pressure washers have many metal parts including the water pump through which most persons siphon bleach solution and bleach is corrosive it s.
If you point the stream at an angle you risk driving water behind the siding.
However bleach which has the chemical compound sodium hypochlorite as its active ingredient is corrosive.
These types of cleaners can damage the surface of the siding.
The more the chemist told me about this magical product the more.
Mix up a mold killing solution.
Along this same note be very careful.
Don t use paint thinner nail polish remover spot removers paint remover straight chlorine bleach or furniture cleaner on vinyl.
As for mix fill the bottle with straight bleach and a bit of soap.
How to clean cedar siding with bleach.
If you do choose to pressure wash your vinyl siding make sure you keep the stream at eye level and pointed straight at the siding.
The oxygen bleach does a nice job cleaning the vinyl but poses no threat to plant life.