How Long Does It Take For Mold To Grow On Drywall. Mold isn't something that takes a long time to grow either. The above refers to small amounts of mold growth, and the mold may only be at the microscopic levels after a few days.
When the kilz dries the mold will be covered or reappear in about a week. Spray the solution on to the damaged portion of the drywall. That being said, in most cases, mold spores can start to develop and spread within 12 hours.
If your pipe burst on monday morning, the growth will begin by tuesday morning.
Mold will grow in places with a lot of moisture, such as around leaks in roofs, windows, or pipes, or where there has been flooding. Since mold is a microscopic organism, it’s presence isn’t visible until the mycelium is formed. So how long does it usually take for mold to grow on drywall? How long does it take for mold to grow?