What Are the Types of Mold Found in Homes?


Mold infestations can lead to health problems like asthma and other respiratory infections. Young children and older people are most at risk, but anyone can fall victim.

It’s not always easy to identify signs of Mold. There are different types and many harmless types. However, it can be a health risk if left unchecked, so it’s advisable to be checked out.

Knowing what to look for is beneficial so you can find it early and treat it before it becomes a bigger problem.

Read on to find the different types of Mold you must beware of in the home.



It is a mold type commonly found in homes and can be identified by its dark grayish-green or yellow-and-white color. It usually grows in water-damaged areas, such as wet wooden surfaces, plaster, wallboard, wallpaper, and fabrics. It is best to keep humid regions of the home dry to prevent the growth of Chaetomium and other molds.

Professional mold remediation is the only way to eliminate Chaetomium and different types of Mold in your home. It is also essential in getting rid of Mold to fix Water Damage.


This Mold is often black or dark green and usually grows in areas with high humidity or dampness. Stachybotrys is a potentially toxic species of Mold that can cause allergic reactions and other health problems if inhaled or ingested.

In some cases, it can also produce mycotoxins, which are known to irritate the lungs and cause respiratory infections. Because of its potential health risks, Stachybotrys is considered by many to be one of the most dangerous types of Mold that can be found in homes.


Trichoderma is a fungus that proliferates in wet environments. It is often found in organic materials such as wood, paper, cardboard, and fabrics and can even grow in dusty areas and on clothing. This can produce a musty smell and discoloration on furniture and walls.

Exposure to Trichoderma spores can cause serious health problems, including allergies, respiratory issues, and skin irritation. It is essential to identify and correct moisture problems correctly. It is to prevent the growth of Trichoderma as it spreads quickly and can be difficult to remove.

An inspection by an experienced professional may be necessary to identify and remediate any existing mold, particularly Trichoderma.


It is typically found outdoors but can enter your home through open windows, doorways, and cracks. Alternaria grows on many surfaces and can quickly spread, posing health risks such as asthma attacks and nasal stuffiness. The Mold is dark in color and is characterized by medium to large-sized spores.

It appears as spots on surfaces and can easily be identified from other types of Mold. This is not as easily removed as different types of Mold and typically requires professional treatments to remove it from the home. Therefore it is essential to take the necessary steps to minimize the possible entry of Mold into your property.


This is a potentially allergenic mold commonly found in damp environments, such as basements and bathrooms. It usually appears as grey or black patches with a furry texture and can occur in circular shapes. This grows on everything from carpets and drywall to insulation.

Ulocladium is known to cause allergy-like reactions and skin, eye, and other respiratory irritation in some people. This type of Mold thrives in areas with high humidity. The best way to prevent the growth of Ulocladium is to ensure the home is adequately ventilated and kept dry.


Its thread-like and floury texture can identify it with a dusty-white or pale orange hue. It is generally recognized as one of the few living molds that actively consume the organic material it grows on. As such, this type of Mold often requires more urgent attention than other varieties, as it can cause irreparable damage if not immediately removed.

Serpula is a fungus that can cause various health problems, such as asthma, allergies, and other respiratory issues. Furthermore, it can also cause musty odors and damage to wood, paper, fabrics, and other material.

In sum, Serpula should not be taken lightly, and it is essential to contact a specialized mold professional to remove the infestation and restore the environment.


It’s a fast-growing mold easily identified by its fuzzy, white, or grayish appearance. It is commonly found in damp areas around the home, such as basements and behind walls. Mucor may release toxins, and their spores can cause allergies and itching.

The Mold can also cause asthma attacks, sinus, and respiratory infections. Because of its rapid growth, it can quickly become a problem in the home if not controlled.

Mucor reproduces by creating thick spores that can be spread quickly through the air or on objects. This type of Mold should be properly contained and disposed of promptly to reduce the risk of contamination and health problems.


Among the most commonly found molds in homes are Aspergillus molds. This family of molds is quite varied, with more than 185 species known. Aspergillus molds are typically found in soil or places contaminated with the spores from these molds.

Aspergillus molds produce a wide range of mycotoxins, some of which can be highly hazardous to humans. Symptoms can range from skin irritations and allergies to pulmonary distress and may even be fatal. Generally, Aspergillus molds can be found in areas with high humidity and moisture levels and areas contaminated by organic materials where Mold can thrive.


Penicillium mold is commonly found in wallpaper glue, carpets, and damp areas around windows and doors. Other places where Penicillium can be found in homes include wood, fabric, leather, food, and wallpaper. It is typically blue-green and can be identified by its distinct musty smell.

It can potentially cause health effects like respiratory issues and skin rashes, so it should be removed as soon as possible if found. Regular cleaning and maintenance are essential to prevent mold growth in the home, and identifying Penicillium mold early is critical to avoiding potential health risks.

Understanding the Types of Mold

Many different types of Mold are found in homes, each with the potential to create other health risks. Recognizing the kinds of Mold for health and preventative purposes is essential. If you spot Mold in your home, contact a professional to identify and address any issue correctly.