|Values:||Boolean values: yes or no, true or false, 1 or 0|
In Red Alert to Aftermath
Any building with this flag set to yes gains an additional "bib" as a part of its image. A bib is a special smudge attached to the south side of the building. This allows When placing the building, the bib makes up a part of the building's footprint. However, it is not considered part of the building's "hitbox", meaning it cannot be targeted nor damaged, although it will disappear once the building is destroyed.
Note: There's no 'bib' image for building foundations with a width of 1.
In Tiberian Sun to Yuri's Revenge
If set, all cells on the south-east edge of this building's foundation are rendered passable to vehicles (note: not infantry). This is particularly used by Refineries and War Factories in the unmodified games, but works on any building and foundation.
Unlike in Red Alert, here the bib is simply a section of the building rendered passable, not an external object. This also means the bib is still part of the building's hitbox and can be damaged.