tribute-common-jamb-sdl-low-e

If you’re shopping for new windows, you’ve probably heard the term “Low E.” So, what are Low E windows? Here is the simplest definition: Low Emittance, or Low E, is a razor-thin, colorless, non-toxic coating applied to window glass to improve energy efficiency. These windows are entirely safe and are becoming the standard for energy efficiency in the modern home.

1. Low E Windows Reduce Energy Costs

Low E applied to windows helps block infrared light from penetrating the glass from the outside. Room side Low E applied to the interior pane keeps in heating/cooling energy. Bottom line: they are much more energy-efficient, helping you save on heating and cooling costs.

2. Low E Windows Reduce Destructive UV Rays

These coatings help reduce ultraviolet (UV) light. UV light waves are the ones that over time will fade color on fabrics and you probably have felt them at the beach (burning your skin). Blocking UV rays save your carpets, furniture, drapes, and floors from fading and sun damage.

3. Low E Windows Do Not Block All Natural Light

Yes, Low E windows block infrared light and UV light, but one other vital component makes up the solar spectrum, visible light. Of course, they will reduce visible light slightly, compared to a clear glass pane. However, plenty of natural light will brighten your room.  Because if it didn’t, you might as well just make that window a wall.

low-e-windows

Not all Low E windows are the same

Combining Low E with multiple panes of glass and gas fills such as Argon or Krypton, increases energy efficiency even more. Learn more about What Makes Windows Energy Efficient. And remember to cater your window decisions around your climate zone.

Also, if receiving tons of natural light is essential to you, be sure to ask about a window’s visible transmittance (VT) rating. This rating should be readily available for any window your considering.

If you’re ready to talk to a contractor about the type of windows you need, visit HBP ProZone to find, compare, and get quotes from experienced professionals in your area.

Additional Resource

There’s a whole lot of stimulating science behind Low E and how it works. So, if you’re looking to nerd-out, you can satisfy your thirst for in-depth knowledge by visiting the Vitro Glass Education Center.

Recommended Reading