Field Evaluation of Low-E Storm Windows

TitleField Evaluation of Low-E Storm Windows
Publication TypeConference Paper
Year of Publication2007
AuthorsS. Craig Drumheller, Christian Kohler, Stefanie Minen
Conference NameThermal Performance of the Exterior Envelopes of Whole Buildings X International Conference
Date Published12/2007
Conference LocationClearwater Beach, FL

A field evaluation comparing the performance of low emittance (low-e) storm windows with both standard clear storm windows and no storm windows was performed in a cold climate. Six homes with single pane windows were monitored over the period of one heating season. The homes were monitored with no storm windows and with new storm windows. The storm windows installed on four of the six homes included a hard coat, pyrolitic, low-e coating while the storm windows for the other two homes had traditional clear glass. Overall heating load reduction due to the storm windows was 13% with the clear glass and 21% with the low-e windows. Simple paybacks for the addition of the storm windows were 10 years for the clear glass and 4.5 years for the low-e storm windows.

LBNL Report Number