What is "Low-E"?

February 26, 2020

There are many reasons you might choose to update the windows in your home.  Maybe you want to go from single to double pane windows, maybe you want to take out that bar pattern on your windows, or maybe you want to go from clear to Low-E.  But what exactly is “Low-E”?




Low-E stands for “Low Emittance” which refers to a surface condition that emits low levels of radiant thermal (heat) energy.  Low-E windows help keep UV and infrared light out of your home without compromising the light coming in.  The Low-E coating is thin, transparent, and reflective.


What does this mean for you?  It means you’re keeping that Texas summer heat outside where it belongs!


If you already have clear, double-pane windows, swapping the insulated glass units out for Low-E IGUs is something we do every day!  The Low-E coating is applied to the inner portion of the pane during the manufacturing process, so it’s something we order from a local distributor after taking measurements.  It is a soft-coat Low-E, so it is immediately sealed between the two panes so that it can’t be defaced by human touch.  Once the panes are sealed together with a spacer bar in between, you have a Low-E IGU.




Double-pane, Low-E IGUs are decreasing your electric bill by having two panes of insulation and also by reflecting the extreme temperatures out of your home. 


If you’re interested in upgrading the IGUs in your home, give us a call today!


Diagram photo from https://www.advancedwindowsystems.com/what-is-low-e-glass-2

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