The Canadian construction industry is changing; to tackle the challenges of dwindling global resources and the growing impacts climate change, building sustainably has become a high priority to building owners and occupants alike. As the sustainable building market expands and policy shifts to require energy and water usage reporting to achieve higher performance targets, building commissioning has emerged as one of the most cost-effective and low-risk strategies for reducing energy consumption, energy costs, and greenhouse gas (GHG) emissions.