| Name | Description | 
|---|---|
| Airtight: Air tight zone without air infiltration | |
| FixedPressure: idealised, fixed pressure boundary | |
| n50FixedPressure: fixed pressure boundary, n50 air leakage into zone | |
| n50Tight: n50 air leakage into and from airtight zone | |
| Switches between n50Tight or AirTight based on interzonalAirFlowType in SimInfoManager | |
| Example models | |
| Base classes |