Once the cedar is dry you can leave it as is or apply the finish of your choice.
How to bleach out cedar siding.
Dip a sponge in the vinegar solution and wipe it on the bleached wood.
It is non toxic to trees and vegetation and will not remove natural color from the siding.
One method used to determine if spots are from these two conditions is to treat them with a solution of bleach 1 part diluted with water 9 parts.
Mix the powdered bleach according to directions.
You can dry wood siding using a dehumidifier or a space.
Rinse the sponge in clear water before dipping it again in the neutralizing solution.
How to clean cedar siding with bleach 1.
Look for a powdered oxygen bleach that does not contain sodium hydroxide or potassium hydroxide as these could damage the wood s protective finish.
Mix the oxygen bleach in a ratio of 2 cups of powdered granules to 1 gallon of water or based on the product and manufacturer s instructions on the label pour the mixture into a cleaned out lawn and garden sprayer.
Put on a pair of heavy duty rubber gloves because you are about to deal with bleach which can prove highly irritable.
Removing the the wood mold with oxygen bleach.
The oxygen bleach comes as a granular powder that mixes with water.
But if you want to lighten it again in the future i d leave the cedar natural.
Mildew and tannin stains are often the causes of dark spots on cedar shakes.
The safe and effective way to clean the wood is oxygen bleach.