Condensation is not always a sign of a faulty window. Learn what condensation is and how to control it here.

Understanding Condensation

You’re not alone in wondering about condensation on your new Centennial windows. Hopefully the video we’ve produced for you below will answer your questions. If you can’t view the video check out the brief FAQs below. And if you’d still like to know more, we’ve provided links to the Natural Resources Canada site that goes into further detail.

Click to visit Natural Resources Canada

Simply put, condensation is the moisture in the air that usually reveals itself when it comes into contact with any surface that is cooler than the inside air temperature.

 If moisture levels are too high in your home and the humid air can no longer escape or be mixed with cold dry air seeping in to the house (as was the case with your old drafty windows), then that humidity will always show up as condensation on the coolest surface. And that surface doesn’t have to be really cold, just slightly cooler than the air inside your home, just like the glass in your new windows.

To control the amount of moisture in the air, improve air circulation (ceiling fans), examine day to day habits around the house, use exhaust fans when adding moisture by cooking or showering, and in some cases it pays to actually add some exterior dry air to the home with an air intake vent controlled by a humidistat.

You should be aware that, contrary to what many people believe, a de-humidifier will NOT do the job…these are designed only to reduce summer levels of relative humidity that often get as high as 90%. In the winter, sometimes 40% relative humidity levels are too high and dehumidifiers aren’t designed to get humidity down to anywhere near those levels.

 There is a lot of very good information on the internet on controlling humidity and when you might need to add ventilation… try NRCAN’s site ‘A Consumers Guide to buying Energy Efficient Windows (section 5 Condensation and Windows).’ 

Click here to Learn More At Natural Resources Canada