How Low-Emissivity Glass Works

How Low-Emissivity Glass Works

The demand for energy-efficient replacement windows continues to increase, which is why it’s no longer surprising to see them widely available on the market. While they may use different glass materials, the best energy-efficient windows come with low-emissivity or Low-E glass for maximum insulation.

Glass Works

At 3JM Exteriors Inc., we specialize in energy-efficient windows. Let us discuss how Low-E glass works.


Emissivity refers to the ability of a material to radiate an amount of energy in relation to its environment. Generally, a low-emissive material is better at keeping a home cozy. Windows emit heat depending on the emissivity and temperature of their surfaces. By reducing a window’s emissive properties, you can increase its insulating qualities.

How Does It Work?

Our windows have Low-E glass that will help lessen the amount of energy radiated by them. Without this component, your window will not only let in daylight and airflow, but also unwanted heat coming from the sun. This will cause some surfaces in your home, such as concrete and tiles, to absorb the heat then emit it, consequently making your home hotter. Low-E glass prevents this from happening by absorbing the sun’s heat rather before it can disperse in your home.

Our Windows

As your trusted window replacement experts, we are proud to offer windows from some of the industry’s leading manufacturers, such as Marvin® Windows and Doors. They come with Low-E glass that will help keep your home cool for more energy savings, as well as argon gas-filled Low-E2 glass to reflect heat back to its source. This feature also blocks up to 84% of UV rays, greatly reducing damage to your furniture and drapes.

Aside from their insulating properties, they have Ultrex® fiberglass frames that add to their thermal performance. They also offer superior strength and durability, allowing our windows to resist expansion and contraction despite sudden changes in temperature. Additionally, they will not crack, dent, or chip, making them a good low-maintenance option.

A reliable general contractor like 3JM Exteriors, Inc. can provide you with energy-efficient windows. With them, you can expect to enjoy more energy savings in the months ahead. We serve Lake Forest, IL, as well as nearby areas including Hinsdale and Schaumburg. Call us today at (630) 882-2422 to schedule an appointment.