Water vapor that drops out will come in contact with cold surface.
Floor vents under window cause outside condensation.
One cause multiple reasons.
Condensation can then drip down and cause moisture on ceilings and walls.
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.
New windows also tend to help reduce condensation on the glass.
Nobody wants moisture to turn into mold or mildew in their air ducts.
Let s start with the cause.
Condensation occurs only when humid air is in contact with a cold surface.
Windows do not cause condensation.
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.
We have discussed this before but new windows are normally a fantastic way to improve both the appearance and thermal comfort of your home.
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.
Luckily this issue can be treated and corrected.
Your car windows fog up in humid weather or in winter when you have several passengers.
Leaky or uninsulated ductwork.
It happens because the warm humid air outside the ducts leaks inside where it comes into contact with the cold duct walls.
But windows are often the first place where condensation can be seen.
That is when the air conditioner vents sweatingand condensation will form.
This happens with your air conditioner because when you have cold air and cold vents but hot air on the outside condensation will form.
Windows do not cause condensation they just happen to be the place where moisture is most visible.
There are a lot of reasons why this happens but there s only one cause.
The dew point temperature.
The temperature can also be the cause of condensation forming.
And the sooner the better.