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| Term | Description |
|---|---|
| Air leakage | The movement/flow of air through the building envelope, which is driven by either positive (infiltration) or negative (exfiltration) pressure difference, or both. |
| Term | Description |
|---|---|
| Air leakage | The movement/flow of air through the building envelope, which is driven by either positive (infiltration) or negative (exfiltration) pressure difference, or both. |