Indoor - originalfoo/Prison-Architect-API GitHub Wiki
Were you looking for Materials setting
IndoorOutdoor?
##Overview
The Indoor requirement prevents a Room from being placed outdoors.
##Syntax
The setting is used in materials.txt and must be within a BEGIN Room ... definition block. It can be used only once per definition block.
BEGIN Requirement Type Indoor END
##Example
See Syntax above.
##Notes
If this setting is added, the room can only be placed indoors.
If neither the Indoor or Outdoor requirements are added, the room can be placed anywhere.
Room requirements are not currently exposed by the scripting API :(
##See Also
