How Long Will It Take For Black Mold To Grow. How fast does mold grow on walls? Time is of the essence when dealing with leaks.
Since water is one of the key components required for mold growth, black mold tends to start developing very quickly after your home has some water damage. Under ideal conditions (optimal temperature and level of humidity), it takes 24 to 48 hours for mold to germinate and grow. S tachybotrys chartarum can germinate in as little as 24 hours after the fact, and the mold will continue to spread and worsen the longer it goes untreated.
How fast does mold grow?
While most molds take just one or two days to colonize, toxic black mold usually needs eight to twelve days. In the case of flood damage from rain or a burst pipe, mold can grow in as little as 24 to 48 hours and in some cases even take a few days to manifest. It is often difficult to tell exactly what the time frame is for a person to feel the effects of exposure to black mold. The mold spores could be present anywhere including clothes and other household items.