Many people install dryer vent port that opens into the attic which makes the attic warm and damp.
How to kill mold in an attic space.
Install dedicated dryer vent port.
Now that you ve prepped the space it s time to attack the mold itself.
Tea tree oil and white vinegar are both completely natural and safe for wood but.
The most effective way to remove mold from hard porous materials such as wood rafters and plywood roof decking is to scrub it with detergent and water while wearing a dust mask and rubber gloves.
You need to have dedicated dryer vent port and avoid releasing excessive moisture and heat into the closed attic.
Mix 1 teaspoon of white vinegar or tea tree oil with each cup of water that you need to attack your mold colony.
Mix a cup of bleach into a gallon of water and use that solution to attack the mold.
Other options for limited areas of mold include spraying it with a mixture of water and tea tree oil or water and vinegar.
Bleach is corrosive and nasty to use and it kills only surface mold.
If your attic mold is limited to a very small area you may be able to use a power sander or a wire brush to remove it.
By far the most popular diy mold killer is bleach.
The epa and other government agencies no longer recommend bleach for doing this.
Here are some recommended methods to prevent mold growth.