Most modern homes today are fitted with some form of thermally sealed glazing. These are insulated glass units or IGUs, which is very much different from the single-pane windows still found on older homes. Being a modern and innovative feature as it is, window seals do deteriorate over time, and it’s caused by several factors. If you’re not sure if you need to call for a home window replacement, here’s how you can check if they’re still intact or if they’ve failed.
How Windows Are Sealed
Single-pane windows are older in design and are not sealed at all, with the glass becoming loose within their frames when the glazing putty cracks or loosens over time. A window is truly sealed if two or three layers of glass are assembled to form an IGU. They’re assembled while still separated by either a partial vacuum or being filled with an inert gas such as krypton or argon.
The glass panes themselves can be coated with a heat-reflective material depending on the homeowner’s preferences. These help keep homes warmer during the winter months and cooler during the summer months, provided that the IGU’s window seals are intact.
How to Spot a Broken or Failed Window Seal
Even if some higher-grade IGUs are precisely built and are one of the best replacement windows on the market, the gas sealed within it will still leak at a rate of about one percent per year. This actually occurs naturally considering the different pressures between the gas inside the window seal and the normal air outside. But sometimes, other factors can cause a window seal in an IGU to fail prematurely.
When you clean one of your windows and notice that it’s still a bit foggy or even tinted, then this may be a sign that its window seal may be broken. Another visible sign is noticing the glass of your window looks a bit distorted. If you see your window bowing toward the center, it means the gas that filled up that particular window has been replaced with air, so its seal is broken. Drafts don’t happen as often, but if you feel it from one of your windows, then you should have it replaced immediately. Otherwise, it will affect your overall energy consumption and you’ll end up having to spend more on the energy bill.
Renewal by Andersen® of Boise is a locally trusted window company that offers quality services to its customers. Don’t hesitate to hire the best company you can rely on. Give us a call today at (208) 501-8361. You can also reach us via our online contact form.