Why Should I Insulate My Windows?

Worker Insulating the window

Insulating your windows is like wrapping your home in a blanket—it keeps the heat in and the cold out. But there’s more to window insulation than just comfort. Understanding how and why you should insulate your windows, as well as how to shop for the best energy-efficient windows, can make a significant difference in your home’s energy efficiency.

What are Insulated Windows?

Insulated windows, also known as double- or triple-pane windows, consist of two or three layers of glass with a sealed space between them. This space, which may contain regular air or an inert gas like argon, acts as an insulating barrier. These windows reduce heat transfer for a consistent indoor temperature.

Why Window Insulation is So Important

Windows are major culprits for heat loss, accounting for roughly 25 to 30 percent of a home’s heating and cooling costs. This energy waste is even more profound with single-pane windows or poorly insulated windows with broken seals.

Insulated windows hold heat inside more effectively during the winter and keep it out during the summer, reducing the workload on your HVAC system and saving you money. They also reduce cold drafts and hot spots, contributing to a more comfortable indoor environment year-round. As a bonus, tightly sealed windows are more soundproof, reducing outdoor noises for a quieter, more peaceful home.

How Much Energy Can Insulated Windows Save?

By creating a more efficient barrier against heat transfer, these insulated windows significantly reduce the amount of energy required to heat and cool your home, which is reflected in lower utility bills. While the exact savings vary, the US Department of Energy estimates that upgrading to double- or triple-pane Energy Star-qualified windows can save you 7 to 15 percent on your annual household energy costs.

Tips for Selecting the Best Energy-Efficient Windows

  • Look for the Energy Star label, which indicates a more efficient window.
  • Choose a low U-factor for better thermal resistance in cold climates.
  • Seek a lower solar heat gain coefficient for reduced heat gain during the summer.
  • Consider special low-e coatings to reflect heat into or out of the house, depending on the climate and season.
  • Choose the material wisely, knowing that options like vinyl and fiberglass are superior insulators.
  • Opt for double- or triple-pane windows for better insulation.
  • Look for gas in-fills that slow heat transfer even more.
  • Ensure proper installation to maximize the insulating properties of your new windows.

Partner with Window Depot of Eastern Iowa

If you’re in Eastern Iowa and considering upgrading your windows for better insulation and energy efficiency, turn to Window Depot of Eastern Iowa. As a locally owned and operated business backed by years of experience, we are passionate about providing the most energy-efficient windows at the lowest prices. We also boast an A+ rating from the Better Business Bureau, reflecting our commitment to excellence. Our experienced installers would be happy to help you choose the perfect windows to suit your home and energy needs. Contact us at (319) 294-7000 today for your free, no-obligation window installation estimate.