Autodesk 256B1-05A761-1301 - AutoCAD Revit Structure Suite 2010, User Manual, Page: 1040 / 1638

■ Rooms can exist in design options. (See Design Options and Rooms on page 1322.) Spaces cannot exist in
design options.
■ If the architectural model changes, spaces are not deleted in the host MEP model. Spaces can become
unenclosed, redundant, or ambiguous, as they would if the same changes were made in the host model.
■ Modification of one model does not propagate to linked models. If the architectural model and the MEP
model link to each other, changes to the architectural model may not be matched by changes in the
MEP model until the MEP model is opened, resaved, and reloaded.
Phase-Specific Rooms and Boundaries
All rooms are phase-specific in a project. When you add a room to a plan view or create a room by adding
a row to a room schedule, the room is automatically assigned to the phase specified for the view.
As the project progresses, you can report room areas for different phases. Also, the same room name and
number can exist in the same or different locations of the model, as long as they are in different phases. To
achieve this, do not switch the phase in the same plan view, but make duplicate plan views with dedicated
phases.
You can make edits to room-bounding elements in one phase without affecting other phases. For example,
you can delete room-bounding walls in one phase and, provided those walls do not exist in other phases,
not impact room boundaries in other phases. Revit Architecture ignores any room-bounding elements that
do not exist in the active phase in which you are working.
Rooms become part of the phase as you place them in the view. In the following picture, rooms placed on
Level 1 of the model are specific to Phase 0, which represents existing conditions.
In the next picture, rooms placed on Level 1 of the model are specific to Phase 1, which represents new
construction.
Notice that the same room numbers and names can display in the view, and room tags occupying the same
location can have different names and numbers.
998 | Chapter 16 Rooms and Areas