logo

Ideal House APP

Your Go-To Interior Design Hub
HomeHome
BoardBoard
ExploreExplore
Logo

Block the Sun and Lower Your Energy Costs With Window Coverings

The article discusses various window covering options that can help homeowners reduce solar heat gain, thereby lowering energy costs, especially during warmer months. The Department of Energy (DOE) states that strategic use of window coverings can decrease heat gain by up to 77 percent, a practice that also helps reduce heat loss in winter. One effective solution is the installation of awnings. These can significantly reduce solar heat gain, by as much as 65 percent on south-facing windows and 77 percent on west-facing windows. For optimal performance, light-colored awnings are recommended because they reflect more sunlight. Retractable awnings offer the additional benefit of being rolled up in winter, allowing sunlight to naturally warm the interior. Curtains and drapes also play a crucial role in managing indoor temperatures. It is advised to keep them closed, particularly on sides of the house where the sun is most intense. The effectiveness of curtains in reducing heat gain depends on factors such as fabric type (e.g., closed weave) and color. The DOE indicates that medium-colored draperies, especially those with white plastic backings, can reduce heat gain by 33 percent. To maximize their insulating properties, curtains should be hung as close to the windows as possible, with a cornice at the top, sealed sides, and overlapping centers, potentially secured with Velcro or tape. Window shades are another simple yet effective energy-saving method when properly installed and kept drawn throughout the day. Mounting shades as close to the glass as possible within the window frame creates a sealed air space, enhancing insulation. Reversible shades, featuring a white side for summer to reflect sun and a dark side for winter to absorb heat, offer seasonal flexibility. Quilted roller shades and multi-layered Roman shades, made with fiber batting, provide superior insulation and sun-blocking capabilities compared to other soft window treatments. Interior window blinds, while flexible in controlling light and ventilation through adjustable slats, are less effective at controlling heat loss. However, when fully closed, highly reflective blinds can reduce heat gain by approximately 45 percent. They can also be adjusted to redirect sunlight onto a light-colored ceiling, which helps diffuse light without generating excessive heat or glare. Reflective window film is particularly beneficial for homes in regions experiencing extended cooling seasons. Silver, mirror-like films generally outperform colored transparent films in effectiveness. East- and west-facing windows derive the most benefit from these films due to their higher potential for solar heat gain during sunrise and sunset. However, homeowners should consider that reflective film can be challenging to clean and may alter the outdoor view. Finally, when using window air conditioners, it is important to consider the sun's path. Placing an AC unit in a window that receives direct sunlight during the hottest parts of the day forces the unit to work harder, leading to increased energy consumption and higher utility bills. #EnergyEfficiency #WindowCoverings #SolarHeatGain #HomeEnergyCosts #Awnings #Curtains #WindowShades #WindowBlinds #ReflectiveFilm #EnergyEfficiency #WindowCoverings #SolarHeatGain #HomeEnergyCosts #Awnings #Curtains #WindowShades #WindowBlinds #ReflectiveFilm
No comments yet
This Small Upgrade Can Lower Your Electricity Bills
This Small Upgrade Can Lower Your Electricity Bills
How to draught proof a window - easy ways to keep heat inside your home this winter
How to draught proof a window - easy ways to keep heat inside your home this winter
The Best Blackout Curtains to Block Light, Reduce Noise, and Save Energy
The Best Blackout Curtains to Block Light, Reduce Noise, and Save Energy
Home Window Tinting: What To Know Before You Buy
Home Window Tinting: What To Know Before You Buy
The Best Thermal Curtains, Tested and Reviewed
The Best Thermal Curtains, Tested and Reviewed
Wooden Blinds, Thermal Curtains: Window Treatments Under $85
Wooden Blinds, Thermal Curtains: Window Treatments Under $85
3 Retrofit Windows That Avoid the High Cost of Replacement
3 Retrofit Windows That Avoid the High Cost of Replacement
Best Window Films From Our Tests
Best Window Films From Our Tests
Buy One, Get One Free: Increase Your Home’s Energy Efficiency With This Simple Upgrade
Buy One, Get One Free: Increase Your Home’s Energy Efficiency With This Simple Upgrade
DIY A Heat Blocking Curtain For Lower Bills This Summer
DIY A Heat Blocking Curtain For Lower Bills This Summer
These Smart Blinds Are Great for Privacy—and for Your Energy Bill
These Smart Blinds Are Great for Privacy—and for Your Energy Bill
Compare the 5 Best Window Replacement Companies of 2025
Compare the 5 Best Window Replacement Companies of 2025
Blinds can help you keep out the Arizona sun in 2025
Blinds can help you keep out the Arizona sun in 2025
These Smart Window Blinds Save My Eyes From the Sun’s Harsh Afternoon Rays | Reviews by Wirecutter
These Smart Window Blinds Save My Eyes From the Sun’s Harsh Afternoon Rays | Reviews by Wirecutter
Why You Should Never Skip Curtains, According to Top Designers
Why You Should Never Skip Curtains, According to Top Designers
Surprisingly, Our Favorite Window Insulation Isn’t the Thickest
Surprisingly, Our Favorite Window Insulation Isn’t the Thickest
Which window treatments will actually keep my house cool? 5 ideas that will help control the temperature inside
Which window treatments will actually keep my house cool? 5 ideas that will help control the temperature inside
The 4 Best Blackout Shades to Keep Your Room Dark, According to Testing
The 4 Best Blackout Shades to Keep Your Room Dark, According to Testing
Conservatory blind ideas: 16 designs to shade and bring privacy to windows
Conservatory blind ideas: 16 designs to shade and bring privacy to windows
You can get sun damage through a window — here's how to protect yourself indoors
You can get sun damage through a window — here's how to protect yourself indoors