How Does Mold Grow?

Mold is a stationary fungus, so how does it grow? Mold is spread by mold spores. Mold spores are lightweight single-celled organisms that can float on the breeze. When the mold spores land in a warm, dark, moist area, mold begins to grow, using the material it landed on to sustain itself. It has a tell-tale color and scent. Mold is often gray, black, or white in color, and creates a fuzzy appearance on the surface it’s growing on.


Mold has a very important job in nature: it is responsible for breaking down the trees and plants that have died. Mold fulfills this job in the wild by using enzymes for biodegradation. Once the plant or tree has been degraded, the nutrients from them can be recycled, aiding in the growth of new plants.


Because of this process, mold grows primarily on biobased materials such as wood or paper products. Two of the most common building materials, wood and drywall, are susceptible to mold growth because of their organic material.

Mold generally grows best in warm, damp environments such as bathrooms, kitchens, or basements. One of the best ways to prevent mold growth is to reduce or eliminate the moist, damp areas of your home or business. This might mean installing an exhaust fan in the bathroom so moist air from showers doesn’t stagnate in the room. In the basement, a dehumidifier will help reduce the moisture mold spores need to survive. While using a dehumidifier in the basement is a great idea, you need to make sure it is emptied frequently so it doesn’t become a spot for mold to grow.


How do you know if there’s mold growing in your home or business? You’ll oftentimes see a discoloration on the surface of the material where the mold is growing. Since the mold is taking nutrients, that material will eventually look different. Some common signs include wood appearing darker and stained, and drywall will appear patchy and become crumbly. By using the material as a food source, the mold is weakening the material, resulting in the possibility of the material to fail and break.


You can prevent mold growth with ShieldAll 1020-Mold Guard, a non-toxic coating that’s guaranteed to defend surfaces from mold for up to 25 years. Apply it and rest easy knowing your work is protected. Choose ShieldAll protective coatings, the best solution for a strong foundation!


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