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Heat Wave: 13 Window Tips For Better Efficiency
Keep the Cool, Beat the Heat
Not only do windows let us enjoy the outside world and admit natural daylight, but in the summer that daylight also comes with heat. And when there’s a heatwave, extra measures can be taken to mitigate the heat as best as can be done.
The number one solution is to have energy efficient windows installed, because they work to preserve the expensive air conditioning in the summer and the expensive heat in the winter. But, there a numerous other options to try to mitigate the elements.
And always be aware of screen safety, because they are made to keep out insects, but not keep children and pets inside.
Sometimes there’s a simple solution to solve a problem. While replacement windows might be the best long-term solution, it’s by far not the only option available to try to keep the heat outside where it belongs.
Window Treatments
Just being aware that easy and fast fixes are available can be the first step in the right direction.
- Blinds and Shades:
- Reflective Blinds: Use blinds that have a reflective surface facing outward to reflect sunlight.
- Honeycomb Shades: These can trap air and act as an insulator, reducing heat transfer.
- Blackout Shades: Prevent any sunlight from entering, keeping rooms cooler.
- Curtains and Drapes:
- Thermal Curtains: Made from thick, insulating materials that help block heat.
- Reflective Backing: Curtains with a reflective backing can help reflect sunlight.
- Window Films:
- Reflective Window Film: Reduces heat gain by reflecting sunlight.
- Tinted Films: Decrease the amount of solar heat that enters through the windows.
Physical Barriers
Blocking the the majority of the waves from ever reaching your windows is another approach.
- Awnings:
- Exterior Awnings: These provide shade over windows, reducing direct sunlight.
- Shutters:
- Exterior Shutters: Can be closed during the hottest parts of the day to block sunlight.
- Interior Shutters: Provide an extra layer of insulation.
- Solar Screens:
- Exterior Solar Screens: Installed outside windows to block a significant portion of solar radiation before it hits the glass.
Strategic Use
Although this may seem to be common knowledge, these tips bear repeating.
- Close Windows and Treatments During the Day: Close windows and draw curtains or blinds during peak sunlight hours to prevent heat from entering.
- Open Windows at Night: When outdoor temperatures drop, open windows to allow cool air in. Ensure you close them again before it gets hot in the morning.
Advanced Solutions
Then there are more high-tech approaches to keep cool.
- Double or Triple Glazing: Windows with double or triple glazing offer better insulation against heat transfer compared to single-glazed windows.
- Low-E Glass: Low-emissivity glass has a special coating that reflects infrared and ultraviolet light, keeping heat outside and cool air inside.
- Smart Windows: Windows with smart glass technology can change their tint based on the intensity of sunlight.
Maintenance Tips
And low-tech solutions work also.
Seal Leaks:
- Ensure windows are properly sealed to prevent cool air from escaping and hot air from entering.
Use Window Insulation Kits:
- Inexpensive plastic films can be applied over windows to reduce heat gain and loss.
Implementing a combination of these strategies can significantly enhance the energy efficiency of your home, keeping it cooler in the summer and reducing reliance on air conditioning.
In addition, the U.S. Department of Energy offers this helpful article regarding ways to improve the efficiency of your existing windows as well as things to consider when replacing your windows.
