5 Surprising Sources of Mold

Flooding isn’t the only situation that can create perfect conditions for mold growth that can become a serious problem. In many cases, mold growth is gradual and often goes unnoticed until you or others in your daily environment experience throat irritation, increased sinus problems, and other health-related signs of mold.



Increased Indoor Humidity

Frequently running the dryer in an area that’s not properly ventilated is just one example of how indoor humidity can increase to the point where mold grows. Old insulation around windows can also increase indoor humidity when it gets colder or on rainy days. Consistently using an indoor humidifier may also trigger unexpected growth. If you need to used a humidifier for health reasons, keep the humidity level below 50 percent.

Heating and Cooling Systems

While heating and cooling systems can spread mold spores around your home or business from other sources, a system that’s not well-maintained may also contribute to the problem or be the source of mold. For instance, filters that haven’t been cleaned or changed and ducts that haven’t been cleaned can trap mold spores and facilitate growth where it can’t be seen.

Leaking Pipes

Mold grows in damp areas where there is no exposure to UV rays. One of these optimal places for such growth is where pipes are located throughout your indoor spaces, which is often under cabinets or behind walls. Some pipes leaks can go unnoticed when the leak is within a wall or in pipes connected to basement water heaters.

Leaking Roofs

Not every roof leak is going to be obvious. Some leaks, such as those hidden by walls or in out-of-the-way spots like the attic, may go undetected for several months. This is plenty of time for mold to form and quickly spread to all areas affected by the leak.


Condensation can occur on any surface that’s exposed to varying temperatures or humidity. Aside from around windows and the glass on doors, condensation can occur on cold surfaces such as concrete floors, even when carpeting is placed on top. Persistent condensation creates an ideal environment for mold to develop.

If you notice signs of mold growth, even if it’s not readily visible, it’s best to call on a mold remediation company. DIY mold removal can be tricky since the true source of the mold may not be evident. Trained professionals can also take steps to prevent return growth.


(Photo credit: moldgone.net)

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