Mold in Your Fireplace or Chimney?

While it might sound odd, could you have mold in your fireplace or chimney? According to our Chimney Sweeps of America experts, the answer is yes. While many people are aware of the signs and dangers of mold in other parts of their house, they may never think to check inside their chimney. However, since mold likes dark, damp places, a moisture problem inside your chimney could also mean you have a mold problem! To protect your family’s health and safety, we recommend taking a moment to check it out.


Here’s what you need to know. Mold growth is most common in infrequently used chimney stacks. If you didn’t use the fireplace that often this winter, a quick test is the first step. So, give your fireplace a sniff. If it smells musty, that’s a good indication that mold has begun growing inside your chimney.


How to Get Rid of Mold

The simplest way to properly determine the presence of mold and have it removed is to call Chimney Sweeps of America to clean your chimney and provide a thorough inspection. We can even apply waterproofing as needed to help minimize the growth of mold in the future. If mold is growing inside your chimney, this is your best option.


If the mold is growing on the outside of your chimney, you can get away with a little DIY if you have a free weekend. You can buy a specialized anti-fungus cleaner to be used in conjunction with a wire brush to scrub the outside of your chimney. However, read the instructions carefully. Improper use of these products can be hazardous to your health.


How to Prevent the Growth of Mold

As with anything, the best form of treatment is prevention. As with any mold growth, a giant factor is the moisture. Cut down on the amount of water or dampness inside or around your chimney, and you will see a marked decrease in mold issues.


Chimneys take a beating during severe weather and because of this should be properly sealed to prevent moisture from getting inside. However, if your bricks (or whatever material your chimney is composed of) are already damaged, this should be addressed before sealing. Sealing already damaged materials does very little to help prevent moisture leaks.


Another way to cut down on chimney dampness is to ensure that you not only have a chimney cap but also that it is in good working order. A good chimney cap with expansion joints that allow for expansion and contraction with temperature changes goes a long way toward keeping your chimney safe and dry.


If you’ve ever wondered, could you have mold in your fireplace or chimney, we hope that this information will be helpful to you. Of course, if you do see any of the issues mentioned here you should call an expert sweep from Chimney Sweeps of America to ensure that your problem is fixed correctly. The peace of mind and knowing that you are keeping your family safe is invaluable. Who knows, you might even find the source of those allergies that you can’t seem to shake.

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