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Airtightness is one of the most important — and most overlooked — elements of an energy‑efficient home. By reducing uncontrolled draughts and air leakage, you improve comfort, cut heating costs, and create a more consistent indoor environment.
What Is Airtightness?
Airtightness refers to how well your home prevents unwanted air movement through gaps, cracks, and poorly sealed junctions. Improving airtightness doesn’t mean “sealing the house shut” — it means controlling airflow so your ventilation system works properly and efficiently. The benefits of airtightness are: