Province airtightness requirements in 2020

What provinces have the strictest airtightness requirements? (infographic)

How does your province measure up?

NBC Canadian building code airtightness requirements 2020
Airtightness Building Codes Broken Down by State and City in the United States 2020
Avatar for Jessica Kumor

Jessica Kumor

Jessica is SIGA North America's Marketing Director. It's her job to deliver you the latest research and practical tips for building air and weathertight buildings. When she's not interviewing customers and posting about building science you can find her refinishing furniture.

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