Building Code For Energy Efficiency

Building Codes for New Buildings

Learn about the 2020 Model Building Codes , why they matter, and what policies are needed next to ensure new buildings are energy efficient.

Ontario Builder Guide · 2026 Ontario Building Code HVAC Requirements: What OBC 2024 Demands From Every New Home Mechanical System A plain-English walk through Sections 9.32 (Ventilation), 9.33 (Heating & Air Conditioning), and Supplementary Standard SB-12 ( Energy Efficiency ) — written for homeowners and self-builders who need to know what their permit package must actually contain in 2026.

PDF User's Guide National Energy Code of Canada for Buildings 2020

Summary The 2024 Ontario Building Code's (OBC) Part 12, Resource Conservation and Environmental Integrity, requires buildings to be designed with a minimum level of energy performance. For residential buildings in the scope of OBC Part 9, detailed requirements are presented in Supplementary Standard SB-12, Energy Efficiency for Housing.