But if you want to lighten it again in the future i d leave the cedar natural.
How to bleach out cedar siding.
Cover about a 4 by 8 foot section with the liquid and let it sit on the siding for about 15 minutes.
You can dry wood siding using a dehumidifier or a space.
How to clean cedar siding with bleach 1.
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.
Dip a sponge in the vinegar solution and wipe it on the bleached wood.
Dry the siding first if you notice signs of mold growth.
Removing the the wood mold with oxygen bleach.
Mildew and tannin stains are often the causes of dark spots on cedar shakes.
The oxygen bleach comes as a granular powder that mixes with water.
Rinse the sponge in clear water before dipping it again in the neutralizing solution.
Look for a powdered oxygen bleach that does not contain sodium hydroxide or potassium hydroxide as these could damage the wood s protective finish.
Once the cedar is dry you can leave it as is or apply the finish of your choice.
Water any grass.
The safe and effective way to clean the wood is oxygen bleach.
It is non toxic to trees and vegetation and will not remove natural color from the siding.