For an effective diluted solution mix one part bleach to four parts water in.
How to clean moss off siding.
Chlorine can also damage foliage and stain clothing.
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.
Wet the side of the house.
Use a soft cloth sponge or scrub brush.
Create a mix of bleach and water 1 tsp.
Blend a moss killing solution appropriate for the siding material.
Clean the house siding to remove any moss that may already be growing on the surface.
Look for ones that are specially formulated for use on vinyl siding.
You could use a power washer however some manufacturers recommend against them.
How to stop moss from growing on house siding step 1.
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.
Pour bleach into a spray bottle.
The bleach mixture alone should remove the algae mold and moss that is sometimes mistaken for.
Oxygen bleach hydrogen peroxide.
Start at the top and work your way down rinsing sections as you go.
Be sure not to spray water up into the siding.