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Understanding How Low-e Glass Coatings Work

UV Testing on low e coating impact glass window While there are several factors affecting your home’s heating and cooling costs, such as your HVAC system and insulation, your windows and doors can either increase or decrease your energy bills.

Applying tints or low e glass coatings to your windows can drastically improve their performance. Window tints help reduce heat intrusion into your home, and low emissivity (low e) glass coatings radiate energy to reflect the heat back to the source without reducing any short wave light that passes through.

How Low E Glass Coatings Work

Regardless of the external temperature or climate, low e glass coatings improve your home’s insulation by reducing the emissivity of the glass and minimizing the UV and infrared light that passes through it.

Low e glass coatings work similarly to the silver lining in thermoses. The silver lining reflects the heat of any hot liquid placed in it back inside to insulate and maintain the liquid’s temperature. It works in reverse when cold liquids are poured into it; the silver lining will reflect the heat from outside. See the diagram we’ve created below:

illustration of thermos with silver lining

Because low e glass coatings are a microscopically thin silver coating, they work the exact same way, reflecting the sun’s heat back to maintain a consistent room temperature, resulting in a lower energy bill.

Would You Consider Low E Glass Coatings?

Impact glass windows are beneficial additions to your home for several reasons, including reduced energy bills, improved home security and enhanced protection against severe storms. However, you may also want to consider adding a low e glass coating to your new windows and doors to truly maximize your home’s energy efficiency and reduce your energy bills.

To learn more about your options and additional benefits of low e glass coatings, click here. Or click the button below to download your complimentary copy of The Homeowner’s Guide to Energy Efficient Windows.