If you have ductwork for your hvac system under your house have it inspected for any air leaks and to make sure it has enough insulation to prevent condensation on the outside of the ducts when the air conditioner is running during the summer.
Floor vents under window cause outside condensation.
If you have hvac ducts made of sheet metal with no insulation or ducts with damaged insulation you re much more likely to develop condensation inside the ducts and also condensation on the ac vents.
Since there is lots of humidity near the air conditioner vent the chance of condensation forming is likely to happen.
Think about it you re probably not surprised or concerned when your bathroom mirror becomes fogged after a hot shower.
Spend the time to have the problem addressed professionally.
There are a lot of reasons why this happens but there s only one cause.
This happens with your air conditioner because when you have cold air and cold vents but hot air on the outside condensation will form.
Let s start with the cause.
Condensation can then drip down and cause moisture on ceilings and walls.
We have discussed this before but new windows are normally a fantastic way to improve both the appearance and thermal comfort of your home.
Your car windows fog up in humid weather or in winter when you have several passengers.
Leaky or uninsulated ductwork.
Windows do not cause condensation they just happen to be the place where moisture is most visible.
The dew point temperature.
It happens because the warm humid air outside the ducts leaks inside where it comes into contact with the cold duct walls.
Condensation occurs only when humid air is in contact with a cold surface.
You should use the amount and severity of window condensation as a sign that moisture damage may be taking place inside your walls or ceiling cavities.
New windows also tend to help reduce condensation on the glass.
Luckily this issue can be treated and corrected.
But windows are often the first place where condensation can be seen.
And the sooner the better.
One cause multiple reasons.
Windows do not cause condensation.
Nobody wants moisture to turn into mold or mildew in their air ducts.
The temperature can also be the cause of condensation forming.
New double triple glazing tends to retain far more heat within the home minimising the time your heating needs to be on as well as keeping rooms at a more stable internal temperature.