For information on how intersections (junctions) work among construction elements:
The following other features also affect Wall intersections:
•Columns and Walls
See Column Display.
•The Connect commands can trim Walls to Roofs or Shells.
•You can also crop a Wall to a Single-plane Roof.
•Walls can be connected to Curtain Walls using the Design > Connect > Join Wall(s) to Curtain Wall command.
•Relation to Zones: In the Model Panel of Wall settings, define how the Wall should behave in relation to zones: as a zone boundary (delimiter), or whether its area/volume should be subtracted from the zone it is in, or whether it should have no effect at all on a zone.
See Relation to Zones.
When connected to other, plain walls, wall polygons keep their original contour by default.
You can override this default setting.
In the following example, a Single Wall is connected to a Wall Polygon.
This effect is visible if you turn on View > On-Screen View Options > Clean Wall & Beam Intersections.