This construct is intended for the roof of the building. You can create a separate roof construct for each discrete portion of the roof (lower roofs, wings, towers, and so on) or you can create all roofs in this file at their appropriate Z-heights relative to the roof level elevation. Parapets and other roof features can be included here or in other constructs as appropriate.
The roof construct is referenced in the Roof Plan, Composite Model, Elevation, and Section View files.