I needed to learn how to clean mold or mildew from concrete and stone.
How to remove green mold from concrete steps.
Last summer was very humid in brooklyn.
How to clean mold from concrete.
Damp or moist conditions from rain or humidity can encourage mold and mildew to grow in those nooks and cracks of concrete pavers or bricks.
Fortunately it s possible to remove green mold with a few simple items.
The concrete steps at my house are moldy and kind of green on the risers except where i applied a concrete sealer.
Step 1 choose a cleaning agent to treat the mold.
You can use a mold killing detergent diluted bleach or a commercial cleaner made specifically for killing mold 1 x research source don t mix anything other than water with bleach as certain cleaning agents can produce highly toxic fumes when mixed with bleach 2 x research source for a diluted bleach solution mix three parts water with one step 2 remove affected items.
Rinse the cement or concrete clean with the water hose.
If you are going to try this approach to remove mold or algae first try a mixture of white vinegar and water to spray down the area and kill the mold.
Set the power sprayer on the most effective nozzle setting to blow the mold off the patio.
After scrubbing rinse with a power washer to get all the solid organic matter out of the concrete.
Green mold can create stains and discoloration on your concrete making the area look old and dingy.
Green mold is typically found outside the home on structures walkways and concrete.
Be aware that a too concentrated stream can leave a mark on your patio.
Mold comes in a wide array of colors including black brown purple and green.
Indoors use a power sprayer and a wet vacuum at the same time.
Humidity creates a cozy environment for mold or mildew to grow.
Vinegar is a great way to get rid of weeds so you do not have to worry about overspray getting on weeds but you do need to make sure you do not spray vinegar on wanted plants and that the vinegar does not run off into a natural grass lawn or flower bed.
The best solution is to scrub and clean the affected areas with a mold killing detergent or a simple solution of household bleach and water.
I did it badly so.
It s important to find a sure way to remove it that won t destroy nearby landscaping and harm the environment with a blast of harsh chemicals.
Use a pressure sprayer and pure water to remove mold from concrete indoors and out.
I did it badly so you can see areas that look like drips.
Be sure to scrub aggressively to get down into the pores of the concrete.
Continue with the remaining steps if any algae remain.