Help Tim!
I have water coming from my ceiling air conditoning vents, but I see no evidence of water in the attic. It is 20-30 degrees F out and believe me I don't have the air conditioner turned on!
Keith G.
- - -
Keith,
This can be very common, especially in houses that have metal air conditioning ducting in the attic. The warm moist air from your home is drifting up into the air conditioning ducting. The metal duct must be poorly insulated or there are places where the insulation has fallen away from the duct. This situation causes the ducts to become cool or cold when the temperature drops in the attic. The water vapor in the air then condenses in the ducts. When enough liquid water collects in the ducts, gravity pulls it into your room.
You stop the condensation when you insulate the dickens out of the ductwork so its temperature does not drop below the dew point of the inside air of your home.
Tim Carter
www.askthebuilder.com
W3ATB