You are approaching the 43 deg dew point and some colder surfaces like windows you will get condensation there.
Condensation in attic in summer.
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.
However this often does not solve the problem.
Summer is the time of year when your air conditioning unit has to work the hardest to cool your home.
Increased ventilation alone will increase the exfiltration of air lowering the temperature of the attic.
In the winter the condensation will form frost and in the summer this condensation can grow mold.
If you seal up the leaks on lower floors you may do without the humidifier and stay comfortable.
The issue in the attic is that at 48 degrees f.
Improper or no insulation of ducts.
They keep your home cooler in the summer warmer in the winter and free from damage caused by moisture.
The simple physics behind sweating is.
Improper ventilation and insulation of home attic space can produce high humidity levels and trap.
Condensation on your ceiling can cause water damage and promote the growth of mold or mildew.
Why is that important.
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.
Most professionals will recommend increasing ventilation in your attic if ventilation is inadequate.
There are dozens of things that can cause condensation buildups in the attic one of which is a leaking roof.
In summer when the air conditioning is on the reverse happens.
That s just the properties of moist air.
What you see is condensation also known as ductwork sweating.
If there are signs of rot on the roof sheathing then there has been prolonged moisture in the attic.
The most common cause of ceiling condensation is an attic with too little insulation and ventilation.
On hot days you may notice water droplets forming on your visible air ducts and wonder whether this is normal.
Even a small pin head sized hole can send gallons of water pouring into your attic over the course of a couple months.
Attic insulation and ventilation go hand in hand.
This may increase condensation and lower the effectiveness of the insulation.
The concern in summer is heat.
Extra heat build up under the roof deck can cause your shingles to deteriorate much faster sometimes cutting their life expectancy in half.
In an attic like this wintertime ceiling condensation can form when cold air from the attic hits your warm ceiling.
The main goal is to keep your attic temperature the same as the outside air temperature in the summer as well as in winter.