Want to Save on your Energy Bill?

Here are some tips to save on your energy bill.

Energy efficient windows are an important consideration for both new and existing homes. Heat gain and heat loss through windows are responsible for 25%–30% of residential heating and cooling energy use.

If you are selecting windows for new construction or to replace existing windows, it’s important to choose the most efficient windows you can afford that work best in your climate.

If your existing windows are in good condition, taking steps to reduce the energy loss through windows can make your home more comfortable and save you money on energy bills.

You have two broad options if you hope to reduce the amount of energy lost through your windows and improve the comfort of your home:

1. Update your existing windows to improve efficiency

2. Replace your windows.

Update Existing Windows to Improve Efficiency and Reduce Energy Bills

If your windows are in good condition, taking steps to improve their efficiency may be the most cost-effective option to increase the comfort of your home and save money on energy costs. There are several things you can do to improve the efficiency of your existing windows:

· Check existing windows for air leaks to reduce your energy bills.

· Caulk and weatherstrip. Check out our do-it-yourself project to learn how to weatherstrip double-hung windows.

· Add window treatments and coverings. Learn more about your window treatment options.

· Add storm windows or panels

· Add solar control film

· Add exterior shading, such as awnings, exterior blinds, or overhangs.

With any efficiency improvements, take steps to ensure proper installation and check for air leaks again after making the improvement. This should reduce your energy bills.

Replace Your Windows

If you decide to replace your windows, you will have to make several decisions about the type of windows you purchase and the type of replacement you will make.

You may have the option of replacing the windows in their existing frame; discuss this option with your window retailer and installer to find out if it will work for you.

You will also need to decide what features you want in your windows. Furthermore, you will need to decide on the following:

· Frame types

· Glazing type

· Gas fills and spacers

· Operation types

Selection Process

In addition to choosing the window type, you also need to consider design, energy use and labeling, warranties, and proper installation.  Are you working from home?

First look for the ENERGY STAR label when buying new windows. Then review ratings on the Energy Performance Label from the National Fenestration Rating Council (NFRC) to find the most efficient windows for your needs.

NFRC ratings are included on all ENERGY STAR certified windows and provide a reliable way to determine a window’s energy properties and compare products. Learn about energy performance ratings for windows to understand how to read the labels and energy-use information.

The Efficient Windows Collaborative offers a selection process for both replacement windows and windows for new construction to help lower your energy bill:

· Selection process for replacement windows

· Selection process for windows for new construction

For more specific recommendations, download the window selection fact sheets for your state.

Then use the window selection tools for replacement windows or new construction to compare options based on your climate and home design.

Window Selection Tips

· Look for the ENERGY STAR and NFRC labels.

· In colder climates to lower your energy bill, consider selecting gas-filled windows with low-e coatings to reduce heat loss. In warmer climates, select windows with coatings to reduce heat gain.

Installation

Even the most energy-efficient window must be properly installed to ensure energy efficiency and comfort. Have your windows installed by trained professionals according to manufacturer’s instructions; other­wise, your warranty may be void.

Window installation varies depending on the type of window, the construction of the house (wood, masonry, etc.), the exterior cladding (wood siding, stucco, brick, etc.), and the type (if any) of weather-restrictive barrier.

To save on your energy bill, the windows, flashing, and air sealing should all be installed according to the manufacturer’s recommendations to perform correctly.

The Building America Solution Center offers guidance on complete window and frame replacement. Consult this guide with your window professional to ensure proper installation.

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