The Most Common Mold Species That May Invade Your Home

As a homeowner, you are probably aware of the possibility of mold growth in your home, especially when there are leaks or if there has been water damage in the past. But did you know that molds are a threat not only to your home’s structure but your family’s health as well? That is why experts always recommend that you get a mold removal service as soon as you notice signs of mold growth in your home.

Here are the most common kinds of molds that may take hold in your home:


This genus is made up of about 50 different mold species and is considered an outdoor mold, although they can still grow indoors, especially if there are areas that are constantly damp and have a food source like wood. Alternaria often look like gray spots.


Aspergillus is also an outdoor mold and can grow on wood, but it can also grow in warmer areas with high humidity. This genus is made up of more than 70 species. They are black and can sometimes be found in a web-like structure.


Cladosporium is also an outdoor mold. It is the most common mold type and comprises four species. Cladosporium typically appears as silver-colored spots.


Penicillium is an indoor mold and makes up about 10 percent of all indoor molds. It is also known as blue or green mold due to the color of its spores. This genus comprises about 200 species and is known for its characteristic smell like old cheese.


Cryptococcus is not a typical indoor mold and comprises only one species. Cryptococcus can also cause meningitis and is a hazardous mold.

Histoplasma capsulatum

This mold can only grow in at least 60 to 80 percent humidity levels. Histoplasma is also known as the “bird’s nest fungus” due to its appearance.

Growth Cycle of Mold

You should also know that mold will not grow if no moisture is present. It will just continue to grow if there is an available food source. This means that it is essential to find the source of your mold. 

The mold will also grow best in warm and humid places, although they can still grow indoors in more relaxed places with a food source. The mold spores will continue to grow and reproduce unless they are killed by direct sunlight, cold temperature, or proper maintenance. 

The molds will release their spores when they grow and reproduce. Humans then inhale the spores. The inhalation of the spores can cause allergic reactions and the release of mycotoxins in the human body. 

How Can You Eliminate Molds from Your Home?

Now that you are familiar with the different kinds of molds that can infiltrate your home and cause health problems, the next question is how to eliminate them.

As early as possible, it would be best to address the moisture source. You should also clean the area well and allow it to dry out. If you do not take care of the issue right away, the mold will continue to grow. The spores will also continue to spread to other areas of your home. If the mold has already grown and has spread to other areas of your home, you may need the help of a professional mold removal company.


As you can see, molds can be dangerous to your health. While not all molds are toxic, some can still cause health problems. You must find the best mold removal service to help you get rid of the mold as soon as possible. The mold removal company should also have experience in handling mold problems.

Are you looking for residential mold remediation solutions nearby? Environmental Molds LLC can help! Our company is a leading full-service mold and indoor air quality consulting firm. Our goal is to ensure your home is restored correctly and safe for your family. Call us today at 949-333-3998 to schedule a service!

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