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ENERGY EFFICIENCY CHANGES TO THE BUILDING BY-LAW

Posted on Monday September 16, 2019

On September 9, 2019 Yellowknife City Council adopted changes to Building By-Law No. 4469. These changes relate to local construction and increase the energy efficiency requirements for residential buildings (Part 3 and Part 9).  The energy efficiency requirements are now approximately 25% higher than laid out in the 2015 National Building Code (NBC).  Commercial buildings (Part 3) are now required to meet the 2017 National Energy Code of Canada for Buildings (NECB) standards.

This change involves a shift from using nominal to effective R-values, which takes into account the cumulative value of thermal resistance for all materials within the assembly and aligns the Building By-Law with the current NBC. Residential buildings will now be required to test for air-tightness twice in order to meet an interim construction target. Home owners and builders should note that minimum insulation values have been removed and replaced with the current NBC standards for additions, alterations, repairs or upgrades.

“By increasing the energy efficiency requirements through the Building By-Law, we are simultaneously decreasing the cost of living in Yellowknife and lowering GHG emissions. This is important as we work towards a sustainable future with a high quality of life for all residents and future generations” said Acting Mayor Morgan.

For full details on these changes view By-Law No. 4469. If you have questions about how these regulations apply to your specific project, get in touch with our Building Services Division at InspectionsDivision@yellowknife.ca.