IECC Code Hearings Feature Window Film ProposalMay 1st, 2013 by Editor
The International Code Council’s (ICC) committee action hearings last week in Dallas included a myriad of proposals related to the International Energy Conservation Code (IECC), one of which was specific to window film.
An approved proposal, CE11-13, will adapt section C101.4.3 (the commercial portion of the IECC), “Additions, alterations, renovations or repairs.” The section of the code contains a list of exceptions noting that “the following need not comply provide the energy use of the building is not increased.”
While the list already contained items such as storm windows installed over existing fenestration and glass-only replacements in an existing sash and frame, Vickie Lovell of Intercode Inc., representing the International Window Film Association (IWFA), proposed that the following exception also be added:
“Existing single-pane fenestration assemblies with surface-applied window film to reduce solar heat gain.”
The proposal was approved with a modification, using the language below, according to Lovell:
Surface-applied window film installed on existing single pane fenestration assembly to reduce solar heat gain, provided the code does require the glazing or fenestration assembly to be replaced.
“Surface-applied window film to existing fenestration has been added to the list because it can enhance the performance of existing single-pane fenestration products for protection from injuries and property damage due to broken glass, reduces ultraviolet transmittance and glare and improves performance when impacted,” wrote Lovell in her proposal. “The foremost benefit of applied window film to existing windows is reduced solar heat gain and reduced energy use.”
She continued, “While roughly two percent of commercial floor space is newly constructed each year, and a comparable amount renovated, the majority of opportunities to improve efficiency over the next several decades will be in existing building stock. Improving the energy efficiency of existing buildings through retrofitting and other measures will create a high-volume, low-cost approach to reducing energy use and greenhouse gas emissions … Allowing building owners to have the option to use window film on existing fenestration in order to improve the energy efficiency will create an incentive for reducing energy consumption and greenhouse emissions.”
Lovell’s proposal was approved as modified for both the commercial and residential portions of the code.