Autodesk 24000-000000-9860 - Revit Architecture - PC, User Manual

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Defining Room Height
Revit Architecture uses the height of a room to compute its volume. You can specify the height of a room
in the following ways:
■ Define room height parameters . In a plan or section view, select the room and edit its properties. The
Upper Limit, Limit Offset, Level, and Base Offset parameters define the height of the room.
■ Change the room height graphically . After adding a room to a plan view, open a section view that shows
the room. In the section view, you can select the room and use grips to adjust the upper and lower
boundaries of the room. See
Rooms in Section Views on page 916.
Defining Room Height Parameters
To define the height of a room, use room instance parameters, as described in the following topics. In a plan
or section view, select a room and click (Element Properties).
The Unbounded Height parameter shows the largest potential height of the room, based on the room height
parameters. This value is read-only. (The room’s actual height may be changed by room-bounding elements,
such as intervening floors and roofs. See
Considering Ceilings and Floors in Room Volume Computations
on page 932.)
Defining the Upper Boundary of a Room
Together, the Upper Limit and Limit Offset parameters define the upper boundary of the room.
NOTE If room-bounding elements intersect the upper limit offset, those elements form the upper boundary
instead. (See Considering Ceilings and Floors in Room Volume Computations on page 932.)
For example, suppose a room starts at Level 1. To indicate that it should extend upward 4000 mm above
Level 2, specify an Upper Limit of Level 2 and a Limit Offset of 4000 mm. By default, the Limit Offset is the
distance between levels (10’ or 4000 mm).
In the following section view:
■ Room 1 has an Upper Limit of Level 1 and a Limit Offset of 4000.
■ Room 2 has an Upper Limit of Level 1 and a Limit Offset of 3000.
■ Room 3 has an Upper Limit of Level 2 and a Limit Offset of 4000.
■ Room 4 has an Upper Limit of Level 2 and a Limit Offset of 3500.
930 | Chapter 14 Rooms and Areas