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Energy-Efficient Windows


If you're considering replacing the windows in your home, you likely have many questions. Most of the information you may be researching is about energy-efficient windows. After all, one of the main reasons a homeowner looks into window replacement is to improve their home's energy efficiency.

Renovations and improving the appearance are other reasons homeowners look into getting new windows, which still result in the desire to make sure the new windows provide the best possible energy efficiency.

When determining the energy efficiency of a window, it's best to work with professionals from Zen Windows. We will take the time to answer your questions and ensure you have energy-efficient windows with a high-star rating that fit within your budget.

What Makes Windows Energy-Efficient?

New windows will not necessarily insulate your home, but they can make it more energy efficient. Contemporary windows are manufactured with a layer of insulation in the frame and either double or triple panes to prevent the air from escaping. This insulation layer and multiple panes act as a barrier around the window, preventing unwanted heat exchange.

An insulated, energy-efficient window can significantly reduce your energy bills. Additional benefits to having Zen install new, energy-efficient windows in your home are improved lighting, better visibility and clarity, and noise reduction.

Contact Zen Windows at (877) 583-0423 for more information about installing energy-efficient windows for your home or business.

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What are the Most Energy-Efficient Windows?

The primary components that contribute to the energy efficiency of windows are the materials used in manufacturing.

Vinyl has come a long way since its introduction to the industry in the 1970s. Vinyl is non-corrosive, prevents heat transfers, is weather resistant, and doesn't rot. Vinyl windows are manufactured with layers of insulation in the frames, so when they are professionally installed create an air-tight seal.

Aluminum is prone to heat transfer and doesn't make the most energy-efficient frames.

Wood windows were the top choice for years, and although they are still an excellent option in many markets, wood requires more upkeep because they are susceptible to rot in wetter climates. Once rot or wear has set in, wood windows leak air and moisture, causing further damage. Wood-clad varieties don't have many temperature-transfer issues because they are constructed with timber on the inside with a vinyl or aluminum exterior that provides durability.

Glass is another component that contributes to the energy efficiency of windows. Double-pane windows with a Low-E coating filled with argon gas are potentially the most efficient. They also offer the most value and protect the interior of your home from the sun's heat and UV rays in the summer while providing insulation that prevents heat loss in the winter.

Contact Zen Windows at (877) 583-0423 to learn more about the options available.

Will Energy-Efficient Windows Make My House Warmer?

The places air escapes from a house are the windows and the doors. Windows and doors are the areas of a home where air escapes the most. That heat transfer is problematic for energy costs, whether hot or cold air. Energy-efficient windows effectively contain the respected heated or cooled air, keeping your home at the appropriate temperature no matter the season.

If you are concerned about increasing energy costs and want to save money while improving your home, look to Zen Windows for energy-efficient window replacements. Air transfer reduces significantly with double and triple-pane windows. The addition of argon gas between the window's glass panes is another insulation level that prevents condensation. Low-E coating also helps to control your home's temperature by reflecting it inside.

Find a Zen Windows location near you, or get a quote today.


Some of the frequently asked questions we receive about energy-efficient Zen Windows include:

Insulated glass units are two or three window glass panes in one frame, separated by an inert gas, usually argon, krypton, or both. The gases are clear, odorless, and non-toxic. Gas minimizes heat transfer better than air. Spacers are used for distancing the layers and allowing for thermal expansion.

Aluminum windows are the least energy-efficient. Wood is most energy-efficient but will deteriorate faster over time and require more maintenance. Composite and fiberglass frames are other options that are more durable than wood. Vinyl windows are affordable, durable, and low maintenance. Advantages of vinyl replacement windows are:

  • They are architecturally diverse.
  • They have a better ROI (return on investment).
  • They are easier to maintain.
  • They have lower installation costs.
  • There are many more styles available.
  • They are more affordable.

Low-emissivity coatings are usually applied to windows during manufacturing. The invisible layer on windows provides insulation and controls heat transfer. Windows with low-E coatings may cost 10%-15% more, but they reduce your energy loss by 30%-50%. This makes them a good investment.

There’s a lot of disagreement among window professionals about which type of windows are the most energy-efficient. Some say picture windows because there’s only one pane of glass; less opportunity for air leaks. Others say bay and bow or casement windows.

Are R-Values and U-Values Important?

R-values and U-values are used to measure energy efficiency. R-value measures the insulation of your windows, while U-value refers to the heat transfer in and out of your house. A high R-value shows the window is more insulated; therefore, the U-value will be lower because there is minimal heat loss.

For example, triple-pane windows have a high R-value because they're well insulated and a low U-value for their resistance to heat loss.

What R-Value Should I Look for in an Energy-Efficient Window?

For an energy-efficient window, you will want to look for one with an R-value of five or higher and a U-value between 0.20 and 1.20.

Yow will also want to consider the size and shape of the window, the material of the frame, and how many glass panes. These factors will contribute to the insulation and energy efficiency of the window. More insulated windows regulate temperatures better, making them more energy-efficient.

With additional measures such as Low-E coatings and argon gas, you can make your windows much more energy efficient and resistant to heat loss. Knowing these metrics when shopping for insulated windows can help you choose something that cuts down on energy consumption, reduces sun heat gain, and regulates the temperature for a more comfortable home.

Are Energy-Efficient Replacement Windows Worth the Cost?

Replacing the windows in your home can be an expensive endeavor. However, if your windows are old or damaged and you have high energy bills, then replacing your windows can be a game-changer.

High-performing, energy-efficient windows vary in pricing depending on features and the materials used in the manufacturing. When you invest in windows from Zen Windows, you have a product that will last for decades, requires minimal maintenance, and cuts energy costs. It's worth investing in a quality product that will keep your home comfortable and provide energy-saving benefits.

Call (877) 583-0423 or find the Zen Windows professionals near you. No pressure … Just the best energy-efficient replacement windows your home will ever have.