The most common cause of ceiling condensation is an attic with too little insulation and ventilation.
Attic ceiling wet.
If water is dripping from your ceiling and your furnace and or air handler is located in the attic the most likely cause is a clogged condensate drain line.
Clothes dryers venting air to the attic rather than outside.
What to do about a wet attic.
Often this is first noticed when re shingling.
And then it drips down onto your ceiling creating nasty water marks.
If the problem is the result of water or moisture penetrating the foundation or floor slab there are many remedial actions which may help.
A leaky pipe is a disaster waiting to happen since even mild leaks can lead to considerable damage to your home s walls ceiling flooring and foundations.
Improper ventilation and insulation of home attic space can produce high humidity levels and trap.
Top causes of attic moisture.
In summer when the air conditioning is on the reverse happens.
Prolonged wetness will rot out the roof sheathing.
These can include installation of seamless gutters and downspouts.
Also it is possible for dirt or debris to become lodged inside.
If you have access to the attic space enter the attic and look for the spot where water is dripping down from the roof sheathing above.
The actual roof damage may be located directly over this spot or it may be located further up the roof line if the water has been flowing down the sheathing or a rafter before falling to the floor of the attic.
The best solution for controlling moisture is at its source.
Inadequate ventilation attics must be vented to allow moist warm air to escape.
Not enough insulation on the ducts themselves.
The same thing can happen with your ac system and vents.
Basically when the cold air from your air conditioner mixes with the warm moist air in your attic condensation happens.
In an attic like this wintertime ceiling condensation can form when cold air from the attic hits your warm ceiling.
Condensation on your ceiling can cause water damage and promote the growth of mold or mildew.
If you have ceiling leaks only in the spring it may be that ice has been forming on the sheathing all winter and it suddenly melts when a warm spell arrives.
A moist attic means moist insulation and moist insulation is less effective.
Pipes may burst or crack after years of long use leading to leaks in the ceiling.
Over time algae can grow inside of this drain line causing backups or clogs.
Insulation in the attic is soaking wet.