Mold on floor joists in crawl spaces

Crawl spaces with dirt floors may see mold growth due to high levels of water activity.

As much as three gallons of water per day can vaporize from the soil and rise up to the floor joist where the water vapor condenses. This moisture will lead to mold growth. To remove this mold use Mold and Mildew Remover and thoroughly spray those surfaces and then wipe or HEPA vacuum. Follow that with fogging or spraying Maintain C-1 for Floors and Walls. This will prevent mold from growing for up to six month. A vapor barrier should be installed on the dirt floor.