How Do Energy-Efficient Windows Work?

February 8, 2021

Energy efficiency is a big buzzword in homeownership these days. After all, nobody wants to waste money on their energy bills, and most people are trying to reduce their carbon footprints. You may have heard that replacing old windows with energy-efficient ones is a good way to save money each month. While that is true, it’s important to understand what energy efficiency really means when it comes to windows.

If you’re still in the dark about how energy-efficient windows work, keep reading. This post from your window supplier in Glenwood Springs, CO will cover everything you need to know.

Multiple panes

Many older windows only have one pane of glass in the frame. This single pane provides very little insulation, allowing inside air to slip out and outside air to come in—making your HVAC system work overtime to keep your home comfortable. With two or even three panes of glass, your home will be better insulated throughout the year.


Energy-efficient windows often feature argon or krypton gas between the glass panes. These gasses, along with the multiple panes, provide the ultimate in insulation for your home. Additionally, the panes may be sealed with polymer or urethane foams, which expand to reduce heat loss in the winter months.

Low-emissivity glass

The panes inside your new windows will most likely be made of low-emissivity (or low-E) glass. Low-E glass panes have a silver oxide coating, which helps reflect the sun’s UV rays. By reflecting sunlight, your home will stay cooler on those bright days without making your AC work harder than it has to. Additionally, the low-E glass prevents your furniture and carpeting from fading.

Is it time to upgrade your windows?

You could replace your windows at any time. However, some homeowners need window replacement more urgently than others. These are a few signs that it’s time to talk to a window supplier in Glenwood Springs, CO about upgrading your windows:

  • High energy bills: There are a lot of steps you can take to reduce your energy bills. But things like turning off the lights and adjusting the thermostat will only do so much. Replacing your windows is an easy way to save up to $465 per year, according to the U.S. Department of Energy.
  • Uncomfortable home: If your house is chilly in the winter or hot in the summer—especially near the windows—it’s time to think about replacing them. Since multiple panes of low-E glass help reduce heat loss, we guarantee your home will be more comfortable throughout the year.
  • Severe damage: Harsh mountain weather can take a toll on your windows over time. If there’s structural damage to the window or cracks in the glass, you should consider upgrading to energy-efficient windows. Although the initial cost may seem high, these windows will likely pay for themselves in just a few years.

Schedule an appointment with our team today!

If replacing your old windows isn’t already part of your 2021 agenda, now’s the time to call your local window supplier in Glenwood Springs, CO. Schedule an appointment with our professionals at Architectural Windows & Doors, Inc. to learn more about the benefits of upgrading to energy-efficient windows.

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Architectural Windows & Doors, Inc.