09/01/2026
Drafts and uneven room temperatures can signal uncontrolled air leakage through a home’s building envelope.
Improving airtightness can help maintain more even indoor temperatures, manage moisture and reduce heating and cooling needs. In CHBA-labelled Net Zero Homes, superior airtightness also helps mechanical ventilation systems filter the air and remove contaminants.
Learn more about airtightness: https://www.chba.ca/2025/11/27/airtightness-why-it-matters-in-housing/