Highly Insulating Glazing Systems using Non-Structural Center Glazing Layers

Publication Type

Conference Paper

Date Published

06/2008

LBNL Report Number

LBNL-611E

Abstract

Three layer insulating glass units with two low-e coatings and an effective gas fill are known to be highly insulating, with center-of-glass U-factors as low as 0.57 W/m2-K (0.10 Btu/h-ft2-°F). Such units have historically been built with center layers of glass or plastic which extend all the way through the spacer system.

This paper shows that triple glazing systems with non-structural center layers which do not create a hermetic seal at the edge have the potential to be as thermally efficient as standard designs, while potentially removing some of the production and product integration issues that have discouraged the use of triples.

Conference Name

2008 Annual ASHRAE Meeting

Year of Publication

2008

Conference Location

Salt Lake City, UT