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Heat loss and moisture transfer caused by airflow can be eliminated by controlled air exchange, a.k.a. airtightness and balanced ventilation.
High air leakage rates can:
- Decrease the effectiveness of insulation
- Increase wear and tear on mechanical systems
- Cause uncomfortable fluctuations in relative humidity indoors.
Careful attention must be paid to sealing potential air leakage points during construction:
Where does air leakage happen?