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Why Are There Water Stains on My Ceiling Around the A/C Vents?

Why Are There Water Stains on My Ceiling Around the AC Vents?

Try looking up at the ceiling. Do you see a discolored ring around your air vents? Something is probably not right with your system which should never be ignored.

The water stains around your air conditioner vents are caused by condensation. This happens when hot air comes in contact with the cool air ducts. Unless you want to pay for the damages caused by water drippings or you want to be troubled by mold growth in your home, you need to get this issue fixed in no time.

Causes of Condensation And How To Fix Them

  • Poorly Insulated Air Ducts

The reason why the humid air touches the cold air duct is poor insulation. Try leaving a cold glass on the table for a minute or two. You see water droplets starting to form on the surface of the glass right? The same thing happens in the duct system. If not insulated, the cold duct and the warm air come in contact with each other, allowing condensation to take place.

Insulate your ducts properly to prevent this issue from taking place. Additionally, doing so can save you on your cooling costs.

  • Under-Insulated ‘vent’ Boot

The metal sheet that you see when you take off your A/C vent is called the boot. It is the connection between the ducts and the vent which should be surrounded by insulation. With poor insulation, the boot gets cold and causes water condensation which drips in the ceiling. Insulating the boot is the solution. And you can choose fiberglass insulation for a better result.

  • Air Leaks Around the Boot or Vents

If the duct and vents are properly insulated, the culprit probably lies in an air leak. This happens when the vent boot attaches to the ducts, allowing cold air to escape. When it meets with the warm attic air, condensation takes place. If the vent is accessible from your attic, be sure to find the leaks and seal them. If it is not, call a professional technician to do the job.

Getting Rid of Water Stains

Some easy fixes homeowners make is to paint the ceiling and remove the stained drywall. But these procedures do not completely solve the issue. To entirely fix water stain problems in the ceiling, it is best to hire a professional technician.

You can count on the professionals at Automatic Heating and Air for this matter. We have a team of experts who are always willing to take the job. Call us today!