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Do Blackout Shades Keep Heat Out?

Plus Other Energy Efficient Window Treatments

The warmer months are just around the corner and that means cranking up the AC or turning on the fans. Perhaps you are looking for a way to help keep your home cooler without worrying about a high energy bill year after year after year. One of the best ways to help passively cool your home is with energy efficient window treatments. Do blackout shades keep heat out? Could they be the right option for you?

Energy efficient window treatments are often referred to as “blackout” or “thermal.” These are the properties that make them more energy efficient than other forms of window coverings. Let’s take a look at some of the best window treatment options that help beat the summer heat. 

Interior Shades

There are several types of interior shades to choose from including but not limited to cellular shades, pleated shades, roman shades and rollup shades. While there are a few natural wood or bamboo woven shade options, the most common and more energy efficient shades are ones made from fabric. 

Cellular shades are the most insulating and energy efficient window treatment out there. The specially designed pockets, or honeycombs, trap hot and cold air from entering your home. This creates a barrier that keeps your home’s temperature more consistent, which in turn keeps you from cranking up the AC or heat. 

You can also add a thermal or blackout lining to just about any type of interior shade, including some cellular shades. These linings are what block the heat of the sun’s rays that heat up your home. They can also help insulate your home from the cold during the winter.

Exterior Shades

Exterior shades are a great way to keep your outdoor spaces cool but they can even help beat the heat in your home too! By installing these in front of windows, such as the overhang off your patio in front of your sliding glass door, you can block the sun’s light from entering your home. Most exterior shades are made of a tightly woven, solar material that have the added benefit of blocking harmful UV rays that can cause sunburns as well as damage your furniture, flooring and decor. 

Interior Shutters

While there is no blackout option for interior shutters, their design can help insulate your home. Interior shutters, also called plantation shutters, are custom fit and mounted directly to your window frame. Because of this, they have a snug fit that minimizes gaps that hot or cold air can seep through into your home. Keep your slats closed during the hottest part of the day or during cold days to help regulate your home’s temperature. Also, be sure to choose a wider slat, which helps minimize the number of gaps that hot and cold air can seep through. 


Custom drapes come in a variety of colors, fabrics, textures and patterns. But to make them energy efficient, make sure you choose a tight weave fabric and add a thermal or blackout lining to the back. Then be sure to close your drapes during the hottest (or coldest) times of day. 

Make a Combination!

Up your energy saving power by combining drapes with one of the other energy efficient window covering options. Doubling up not only gives a luxurious feel, but it gives twice the heat and cold blocking power!

Get Ready For Summer

Do blackout shades keep heat out? Could they be the right option for you? Want to have your new energy saving window treatment installed before the hot weather hits? Contact us today to schedule a free appointment. We bring the showroom to you and give you a free quote! Once you make your selections, we handle the rest from measurements to installation. 

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