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What to Do About Sweaty Walls

What to Do About Sweaty Walls

If you have noticed that the walls in your home are damp or have beaded moisture droplets on them, you need to address the problem before damage can occur. Sweating walls can cause mold, which harms your indoor air quality and your health.

Here’s to keep your indoor humidity level in check.

Run Your Central AC

A central air system does more than keep your home cool. It also helps to dehumidify the interior. If your HVAC unit isn’t managing humidity adequately, you may have one of several problems:

Your HVAC system is oversized: Your system should be sized according to the square footage of your home and the amount of BTUs (British Thermal Unit) to heat and cool your home. Sized properly, your central air conditioning system will run longer cycles, keeping indoor humidity levels between 30 and 50 percent. (Use a hygrometer to measure indoor humidity). An oversized unit, however, will operate in short bursts. Those quick on-off cycles won’t remove as much moisture from the air. Have your system inspected if you suspect it isn’t sized correctly.

Airflow is restricted: Your HVAC system needs to distribute air evenly throughout the entire home in order to combat humidity and maintain a consistent temperature. Several things can interfere with this, such as a dirty filter. Change it every 30 to 90 days. Also, make sure the vents aren’t obstructed and don’t make the mistake of closing vents to unoccupied rooms. (This doesn’t save you money and will only increase your indoor humidity.)

Have Your Ductwork Inspected

Condensation can build up on ductwork when the hot, humid air hits the cold surface. This can cause moisture to leak from your attic through your ceilings and walls. If your ductwork is older, it might need to have more insulation or a vapor barrier added to it. You can also add a dehumidifier to your attic or crawlspace where the ductwork is located. Finally, replacing older ductwork can solve this issue since modern ductwork comes with vapor barriers and insulation installed.

Bottom line: Identifying the cause of sweaty walls in your home can be difficult. To pinpoint the source and determine how to fix it, contact Fairway Heating & Cooling by calling (813) 519-6620.


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