The most common cause of ceiling condensation is an attic with too little insulation and ventilation.
Moisture in attic in summer.
Well the same principles apply here except that your roof may be the side that is warmer in the summer.
It s important to keep an eye on attic moisture and temperature if you believe you have a potential problem with mold.
Attic moisture is caused by hot temperatures and high humidity prime causes of mold in your attic.
Attic insulation and ventilation go hand in hand.
They keep your home cooler in the summer warmer in the winter and free from damage caused by moisture.
Heat from the sun radiates from your roof and vents allow warm moist air to enter your attic.
Attic air dew point temperature elevated above outdoors.
Advani is adding moisture to the air with a humidifier and that hot air rises finding ways of getting into the attic sullivan says.
The main goal is to keep your attic temperature the same as the outside air temperature in the summer as well as in winter.
In an attic like this wintertime ceiling condensation can form when cold air from the attic hits your warm ceiling.
Why is that important.
Lower attic air relative humidity due to sensible heat gain by solar higher air relative humidity at the surface of wood framing materials resulting in moisture being desorbed by the attic.
The concern in summer is heat.
In summer when the air conditioning is on the reverse happens.
As a general rule the lower the outdoor temperature the lower the recommended humidity setting.
You want to avoid ice buildup or condensation that could lead to structural problems in your attic.
Improper ventilation and insulation of home attic space can produce high humidity levels and trap.
These sources are generally not a huge contributor to excessive moisture in the house or attic unless the amount of moisture is unusually high the house is extremely tight or proper venting is not used.
This is ok unless again you have breeches into your living quarters that allow your air cooled by your air conditioner to come into your attic.
Air leaks in the lower part of the house in the basement for example allow outside air with low humidity to get into the house.
Condensation on your ceiling can cause water damage and promote the growth of mold or mildew.