Mass Floors At The Top Of A Mass - Autodesk 24000-000000-9860 - Revit Architecture - PC User Manual

Perimeter of each mass floor. Use this information to create rough cost estimates based on linear
dimensions.
Volume of each mass floor, in cubic units. Use this information to estimate HVAC loads.
See Examples of Conceptual Design Analysis

Mass Floors at the Top of a Mass

When you use mass floors to divide a mass, Revit Architecture creates a visible mass floor at each specified
level that intersects the mass, except for any level that coincides with a top face of the mass.
For example, suppose you create a mass that starts at level 1 and ends at level 4. In the Mass Floors dialog,
you select levels 1, 2, 3, and 4. As a result, Revit Architecture creates mass floors at levels 1, 2, and 3. The
software does not create a mass floor at level 4 because level 4 coincides with the top of the mass. It does
not have exterior surface area (vertical surfaces extending upward from its perimeter) or volume (from level
4 upward). Instead, the exterior surface area for level 3 includes the vertical surfaces (walls) that enclose level
3 and also the top horizontal surface (roof) that occurs at level 4. As a result, the exterior surface area for the
top floor of a mass may be disproportionately larger than lower floors.
524 | Chapter 10 Conceptual Design with Massing Studies
on page 529.