Just recently installed new energy-efficient windows? You might be wondering why condensation is forming on the glass inside. A lot of homeowners are concerned about this issue, given that it never happened on their old windows. No need to worry though – this isn’t a sign the window’s defective or that water managed to infiltrate your windows. It’s just a sign that the air inside your home is too humid.
How Condensation Forms
Condensation starts to form on a surface when humid air meets a cold surface. This is a common occurrence in winter, given that indoor air, which is heated by the furnace, becomes more humid in winter. Remember: the warmer the air becomes, the more moisture it can hold – which means that it’s more humid inside than outside. And, since windows are the coldest part of your home in winter, condensation would naturally form.
Why It Only Forms on the Inside Surface of Energy-Efficient Windows
However, why didn’t you experience the same problem with your older windows? Older, less energy-efficient windows let warm air escape from your home, heating the window glass in the process. Without a cold surface, the water vapor in humid air can’t condense into water droplets and instead dissipates on the warm glass surface. Energy-efficient windows, on the other hand, are airtight and, therefore, prevent warm air and moisture from exiting your home.
Tips for Reducing Moisture in Your Home
There’s not much you can do about the temperature levels outside, but there are a few things you can do to control the humidity level inside. One of them is turning the exhaust fan on while you’re washing dishes or taking a shower. More than just reducing condensation on your windows, this will help control indoor moisture levels – a key factor in the formation of mold – and protect the other parts of your home, including your roof and siding.
Keep in mind, however, that water pooling near the bottom of your windows is a different – and more serious – problem. If you notice signs of moisture damage, have an experienced contractor inspect your windows right away.
Turner & Sons Roofing & Siding has been providing professional exterior services, including window installation and roof repair services, to local residents since 1956. To request an estimate, call us at (860) 398-5072, or fill out our online form here. We serve homeowners in Middletown, CT, as well as the surrounding communities.