How do Canada’s 2020/2025 NBC energy tiers map to realistic renovation scopes (windows only vs gut)?
How do Canada’s 2020/2025 NBC energy tiers map to realistic renovation scopes (windows only vs gut)?
Canada’s National Building Code was updated in 2020 with a five-level system for energy performance, ranging from basic to net-zero energy-ready. This approach gradually improves requirements for energy efficiency in areas like insulation and windows, taking bigger steps toward net-zero as you move up the levels.
Canada’s National Building Code (NBC) energy tiers provide a framework for energy-efficient building design and renovations. The tiers range from 1 to 5, with Tier 1 being the least stringent and Tier 5 being the most stringent.