Debunking the Myth: What Causes Home Windows to Fog Up?

Hey guys, Sean with American Window Concepts. Today, let's answer a question. Hey, why do my windows fog up? Let's talk about that. Okay, so you wake up in the morning and you raise up your shades or you open up your shutters and you're like, wait a minute, like why is all this moisture on my window? That is going to be your normal condensation. The dew point of every evening has a temperature. So you'll have your temperature for the night and then you'll have your dew point. Now this doesn't have to be nighttime. It can be during the day too, but typically you're gonna see this at night. So here's a little picture window. Maybe you have some condensation down the bottom side. You see that often. Or you have like an oval shape right here in the middle. Also very common to see. Or the whole panel of glass minus an inch on the bottom is just covered severely in moisture. Now somebody might say, well, that's gotta be a bad window. Nay, in fact, that is indicative of a very high performing window. Very high performing window. And the reason this is true is because the inside of your home is being protected by this interior pane of glass. So the warmth that is in your home is stopping here. The argon gas between the panes of glass is acting as a buffer between this pane and this pane on the outside. What happens is the exterior pane of glass that is outside is susceptible to temperature drop. So inside it's a comfortable 68, 69 degrees. Outside, maybe it's 30 degrees. And the dew point level, maybe it's 35, 36 degrees. So you're past the dew point level, meaning the moisture in the air will start to condense. And on the coldest surfaces, it will actually show up. So if you see it, and you're like, oh man, that's ugly, that's all part of it. That is a good thing. High performance window, a little fog, oh well. That's the way I say it. Interior condensation, a little different. When you have a high performance window, you've gone away from drafty windows and they don't breathe as well. You know, you put your AC on, your heater on, and you don't want all that air just being, you know, leaking right out of your window. If you trap every single window, you close it, and you have your normal life going on. You have pet, you're cooking, you're doing laundry. You have people in the house that are talking often. You have so much humidity built up in your house that's not just leaking out of your windows like the old ones, that you have a high concentrate of humidity in your house. If the temperature on the glass is low enough to where you can have that moisture condense, well, you will start to see condensation on the inside of your house. The best way to combat against this, open your window. Once a day or so, let the air out. You gotta make sure you're regulating the humidity inside the home. Maybe 10 minutes or so, close all your windows up and resume. It's just that simple. Hopefully, that answers some questions. If you have any questions about this or comments about this, go to the comments section, leave those, and I'll try to respond as soon as possible. Thanks, guys. Make it a great day. Hey, guys, if you live in the Ventura or Long Beach area and are interested in a free-in-home estimate, go to our website, americanwindowconcepts.com, and we'll reach back out to you as soon as possible. If you guys find this information valuable and you want to continue to learn more about windows and doors, subscribe to our channel. Thank you so much.