The purpose of this regulation is to improve the energy efficiency of manufactured fenestration products for all new and existing buildings. These products are a key component of a building’s exterior envelope that affects the energy usage required to heat and/or cool the conditioned space.
This circular includes updates to the Energy Efficiency Standards Regulation (EESR) for windows, glazing, doors and skylights that were approved July 21, 2011. Note that products manufactured for export from B.C. are exempt from these regulations. Information on the EESR standards for fenestration products is maintained at the following webpage: http://www.empr.gov.bc.ca/EAED/ENERGYEFFICIENCY/Pages/EEAct.aspx
This information circular is intended to help stakeholders understand the current requirements.