Mold is a tiny microscopic organism that consumes organic material. Mold reproduces by releasing spores in the air which then attach on other surfaces which is how it regenerates. Mold is a type of fungi and in nature there are over 100,000 different species. In nature mold helps to decompose or break down organic matter such as leaves, wood and plant debris. Mold is useful in nature but when stuck in our homes such as in our basements it becomes a problem. Not only does mold release a bad odor but some people are very allergic to it.
Mold can enter your home as a tiny spore. Spores are small enough to be carried within the air for example if you have a window open and the breeze blows in from outside into your house spores can attach to the walls. Spores can stick to your shoes and be carried in that way also. This is normally not a problem if you have a dry home but if there is a lot of moisture present in your home the mold will thrive. The mold will feed on organic matter within your home such as the paper within your sheet rock walls, your carpeting and insulation.
Look at it this way moles are ever present they are a part of nature. If you have a mold problem within your basement the only way to cure the problem is to stop the root of the matter. The root of the matter is you probably have a moisture condition within your basement. There are different kinds of moisture conditions within different basements. There can be a leaky pipe from the house above or ground water could be leaking through the wall through a crack into your basement. Or the soil around your basement could be saturated with water and the water is moving through your basement walls and floors.
The only way to control mold within your basement is to control the moisture condition. The leaky pipe must be fixed or the underground water must be drained away. There’s a process called a French Drain which is installed under your slab which will remove underground water from around your basement. Also the grading around your homes perimeter must be sloped away from the walls and out to the yard. This will help prevent saturation of your soil next to your basement walls.
Another solution would be to add a dehumidifier In your basement. If you have a sink in your basement you should hook your dehumidifier up to your sink drain. This will ensure that you can always have a dehumidifier on if necessary and never have to worry about dumping the water out.
In closing if you have mold present in your basement most likely you have a moisture or water condition. If you plan on redoing your whole basement and ripping everything out or if your basement is bare you should have no problem finding your moisture or water condition. If your basement is already finished you will have to do some investigative work to try to find the source of the moisture or water. So go find that water problem first, then worry about getting rid of moldy old walls and ceilings