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Ontario puts window energy requirement into law


January 4, 2013
By Fenestration Canada

Jan. 4, 2013 – Fenestration Canada is reporting that the Ontario provincial government has announced changes to its Green Energy Act requiring windows sold in Ontario to meet certain energy efficiency standards. The change takes
effect January 1, 2013, but the requirements for windows will not take effect until January 1, 2014.
Doors and skylights are not included at this time. 

Jan. 4, 2013 – Fenestration Canada is reporting that the Ontario provincial government has announced changes to its Green Energy Act requiring windows sold in Ontario to meet certain energy efficiency standards. The change takes
effect January 1, 2013, but the requirements for windows will not take effect until January 1, 2014.
Doors and skylights are not included at this time. 

The requirement applies to residential windows only. In basement windows incorporating a load-bearing structural frame, the window must now be
double-glazed with a low-E coating. All other windows must meet a U-factor of at least two watts per square meter on centre, or an energy rating of no less than 17. Windows must also be certified and labeled to CSA A440.2 or NFRC thermal standards.

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Excluded products include:

  • decorative windows that have stained glass panels, iron inserts or blinds contained in a sealed insulating glass unit,
  • heritage replacement windows intended to be installed in a heritage building,
  • glazing replacements in an existing sash or frame, if the U-factor of the replacement glazing is equal to or less than the U-factor of the original glazing,
  • decorative sidelights for doors,
  • windows that are designed for a specific building, and
  • windows that fall outside the scope of the certification programs for CSA or NFRC.

The Ontario Green Energy Act has been in place since 2009.

These requirements are not as strict at the building code requirement, but they do mean that all
windows sold in Ontario will have to be certified to CSA A440.2 or NFRC. Fenestration Canada will
follow-up with more information on the Ontario Green Energy Act requirements early in 2013.

Related links

www.fenestrationcanada.ca

www.ene.gov.on.ca/environment


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