Selecting the right glass type will greatly affect comfort, efficiency, and energy savings. Below is a quick guide comparing the most common insulated glass options.
Single Pane Glass
Description:
One sheet of glass with no insulating air space. The simplest and most economical option.
Best For:
Sheds, garages, and unheated structures.
Energy Efficiency:
▮▯▯▯▯ (★☆☆☆☆)
Available in Dutchland® Single Pane Aluminum Windows
Double Pane
Description:
Two panes of glass separated by a sealed air space, creating a thermal barrier that helps reduce heat transfer.
Best For:
Homes, cabins, and climate-controlled spaces.
Energy Efficiency:
▮▮▮▯▯ (★★★☆☆)
Available in Dutchland® Double Pane Aluminum Windows
Available in Dutchland® Insulated Vinyl Windows
Available in Lippert Insulated Vinyl
Available in JELD-WEN Windows
Available in Crystal Windows
Clear Insulated Glass (Clear IG)
Description:
Standard double-pane unit with clear glass on both sides. Provides solid insulation and natural light without coatings.
Best For:
Builders seeking reliable, affordable performance.
Energy Efficiency:
▮▮▮▯▯ (★★★☆☆)
Available in Dutchland® Double Pane Aluminum Windows
Available in Dutchland® Insulated Vinyl Windows
Available in Lippert Insulated Vinyl
Available in JELD-WEN Windows
Available in Crystal Windows
Low-E Glass
Description:
Features a nearly invisible metallic coating that reflects heat while letting in light, keeping interiors comfortable year-round.
Best For:
Homes, cabins, and spaces focused on energy efficiency.
Energy Efficiency:
▮▮▮▮▯ (★★★★☆)
Available in Lippert Insulated Vinyl
Available in JELD-WEN Windows
Available in Crystal Windows
Low-E Argon Glass
Description:
Combines a Low-E coating with Argon gas between the panes for maximum thermal performance and condensation control.
Best For:
Energy-efficient buildings and climate-sensitive applications.
Energy Efficiency:
▮▮▮▮▮ (★★★★★)
Available in Lippert Insulated Vinyl
Available in JELD-WEN Windows
Available in Crystal Windows
Quick Comparison Chart
| Glass Type | Layers | Added Coating / Gas | Best Use | Efficiency |
|---|---|---|---|---|
| Single Pane | 1 | None | Sheds / Garages | ▮▯▯▯▯ |
| Double Pane (IG) | 2 | Air Space | Homes / Cabins | ▮▮▮▯▯ |
| Clear IG | 2 | Air Space | General Use | ▮▮▮▯▯ |
| Low-E | 2 | Low-E Coating | Energy Efficiency | ▮▮▮▮▯ |
| Low-E Argon | 2 | Low-E + Argon Gas | High Efficiency | ▮▮▮▮▮ |
At W.E.H. Supply, Inc., we offer a wide range of insulated glass options to match your project’s performance and aesthetic goals. We are confident we can supply you the right window for the job. At W.E.H. Supply, where service meets quality, we are committed to providing you the best service and product. Every detail counts.