Common Types of Mold Found in the Home

Post by: Kenzie on May 23rd 2018


Common Types of Mold Found in the Home

Mold growth can be a dangerous condition to live with, causing numerous health problems with prolonged exposure. Unfortunately, it is a common side effect from water damage to homes. But there are so many different types of mold, it can be difficult to know exactly what kind is growing in your home and what health effects it has. Here is a guide to some of the most common types of mold that can be found indoors to help mold removal be easier.


Often considered the most common type of mold found in homes, aspergillus has over 185 species and can come in many different colors such as yellow, white, and green. It is an allergenic mold that forms in long, thick chains across surfaces, able to form in any home or office that has suffered water damage. Most of the species are known to trigger allergic reactions and respiratory infections with symptoms like asthma attacks and lung inflammation. Some aspergillus species are also capable of producing aflatoxins, a dangerous carcinogen.


Alternaria is another strong contender for the most common form of mold. Though it is most often found outdoors in plant soil, it can easily thrive in damp places indoors. It can grow in and around sinks, showers, tubs, pipes, and any other areas that have been left moist for a long period of time such as carpets or window frames. Numerous allergy and asthma symptoms can be developed from long term exposure to alternaria. It can spread throughout the home quickly, so once it has been identified be sure to take care of it as soon as possible.


Famous for its life saving abilities as an antibiotic, penicillium is easily recognizable due to its green or blue color, velvety texture, and musty odor. But just because it has useful medicinal properties don't think it's harmless when found growing in the home. It can be found anywhere there has been water damage or decay and can cause serious respiratory conditions and allergic reactions. It's known to spread quickly and easily from one part of the home to another, so don't waste time if you find some growing in yours.


Cladosporium, an allergenic type of mold, is unique in that it can grow in both warm and cold places in the home. Like alternaria, it is most commonly found outside but can easily find its way inside. It is often found thriving underneath floorboards, carpets, in cupboards, or on fabrics. Both indoor and outdoor species of cladosporium are known triggers for hay fever and asthma symptoms.


Notorious for growing near air conditioners and HVAC systems because of the moisture, mucor is an allergenic mold that is fast growing, usually appearing in thick, fluffy patches. Because of its growth speed it can be particularly nasty to deal with. In very severe cases, someone who faces prolonged exposure to mucor can develop mucormycosis (a fungal infection that can damage the sinuses, lungs, and brain) or zygomycosis (a fungal infection that affects the face).

Stachybotrys Chartarum

Stachybotrys chartarum is most famously known as black mold. It is a toxigenic mold that thrives in damp areas, getting its name from its dark greenish-black color and slimy texture. It is also referred to as toxic mold, though the mold itself is not toxic, but rather it produces toxic compounds called mycotoxins, which cause health problems to those who have prolonged exposure to it. These health issues can include chronic coughing or sneezing, persistent headaches, difficulty breathing, rashes, chronic fatigue, and even depression. If you identify black mold in your home, contact a mold remediation professional immediately to help remove it and restore your home.

Mold can be scary enough without having any idea what kind it is. Knowing exactly what type of mold you've found in your home and what impact it may have on your health can be helpful in remediating the problem.

Do you have any questions or concerns? Disaster Professionals offers mold remediation experts who know exactly how to return your home back to safety. We're happy to help!