Black stains are usually a sign of mildew algae mold or fungus.
Moss on wood siding.
These stains occur naturally over time.
Moss grows wherever it finds a suitable environment including on structural parts of houses such as the roofs siding decks and walks.
Blend a moss killing solution appropriate for the siding material.
You re most likely to see green stains on siding that is inadequately ventilated.
Brown stains on wood siding can signal that moisture is forming underneath the wood.
How to kill moss on a house.
Mix the chlorine bleach in a sprayer at a ratio of 50 bleach with 50 water.
When applying chlorine bleach and water mixture to wood siding leave on the wood for 15 minutes and then thoroughly rinse with water using a garden hose.
When house siding begins to turn green it diminishes the exterior appearance of the home.
Green stains are almost always the result of algae or moss.
Moss can grow on nearly any surface including house siding.
It makes sense to get rid of.
For wood or aluminum siding combine one third cup powdered laundry detergent two thirds cups trisodium phosphate 1 quart.
Fortunately siding can be cleaned to remove not only green stains but other dirt and stains that may be taking over the homes exterior.
Chlorine bleach will prevent moss regrowth for up to one year and is also non corrosive when applied correctly.
Green stains on siding are usually the result of mold mildew algae or moss.
When mildew gains a foothold homeowners often turn to diluted chlorine bleach sodium hypochlorite a k a.
Moss grows in dark or shady moist areas.
Clean wood siding your home s exterior really takes a beating.