Wherever your a c cooled air is entering may be cooler and when that muggy summer air contacts any cold surfaces you may notice the attic condensation problem.
Summer attic condensation problems.
With a 75 f dew point in the attic and at the outside walls there is a high probability for condensation in many places.
The most common cause of ceiling condensation is an attic with too little insulation and ventilation.
In the winter the condensation will form frost and in the summer this condensation can grow mold.
This may increase condensation and lower the effectiveness of the insulation.
Increased ventilation alone will increase the exfiltration of air lowering the temperature of the attic.
If there are signs of rot on the roof sheathing then there has been prolonged moisture in the attic.
You may need the extreme cold air inside to be comfortable.
If left untreated it can damage critical structural elements of the home such as the trusses and rafters ruin insulation damage any stored belongings and lead to the formation of potentially toxic black mold.
How to completely prevent condensation once you ve blocked the common entry points for air and thus moisture penetrating your attic space you can prevent moisture from accumulating in your attic in two main ways.
It is important to note that this is not a roof related issue.
The simple physics behind sweating is.
In summer when the air conditioning is on the reverse happens.
This could be caused by high indoor rh.
In an attic like this wintertime ceiling condensation can form when cold air from the attic hits your warm ceiling.
However this often does not solve the problem.
These water droplets can lead to lots of problems for you as a home owner namely rot mold and leaks.
Heat and humidity originating from the interior environment of the home and traveling up into the attic on the underside of the roof is the cause of attic condensation.
Whenever there is a contact between the hot humid air and cold metal surface then there will be sweating or condensation on the metal surface so it is very important to have a proper insulation for the air handler ducts in case the portion of the duct is coming in contact with the unconditioned air outside.
Most professionals will recommend increasing ventilation in your attic if ventilation is inadequate.
First water dripping off of your ducts and onto your insulation can cause the insulation to compress which decreases it s r value or ability to insulate.
When water condenses and drips into your attic or home it can cause a some serious secondary problems.
Looking for signs of moisture.
Condensation in the attic is a serious problem that must be addressed by homeowners.
Condensation on your ceiling can cause water damage and promote the growth of mold or mildew.
