Comparison of Low-E Argon Gas Windows

Windows can have different constructs.

Windows have evolved from single-pane assemblies to multiple-pane constructions. In particular, low-emissivity (low-e) argon gas windows offer benefits to a home in the form of insulation and energy savings overall.

Identification

Low-e argon gas windows have an intricate structure. Two glass panes sandwich together with a slim layer of metal oxide in between. Argon gas is then placed into the crevice between the glass for insulation.

Considerations

There are two types of internal coatings to consider when purchasing low-e argon gas windows. The coatings that are deemed hard, or essentially welded to the glass, do not insulate as well as the coatings regarded as soft, which are sprayed on by electrically charging the coating.

Features

Keep in mind that coatings can be applied to either the glass that faces the outside or the glass facing inside the home. Those coatings facing the outside tend to reflect the incoming sunlight, whereas the coating facing the inside brings the light and heat inside for warming.

References

• Home Energy Magazine: Today's Wonderful Windows
• Ask the Builder: Low E Glass - Types and Benefits