> For the complete documentation index, see [llms.txt](https://docs.pollination.solutions/user-manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pollination.solutions/user-manual/rhino-plugin/pollination-commands/alphabetically/po_resetboundarycondition.md).

# PO\_ResetBoundaryCondition

Resets the boundary condition for all child faces of a room or for selected child faces. You can select specific sub-faces of a room by holding the Shift + Ctrl keys.

Notes:

* The boundary condition for all geometries will be reset to Outdoor, except for geometries touching the ground (0), which will be set to Ground.
* Apertures and doors will also be reset to the Outdoor boundary condition.
* Face type with AirBoundary will be reset to Wall.