Revit to IFC: An Export Guide - Part 6 - IfcZone (Rooms)

Summary

This tutorial explains how to export Revit rooms as IfcZones. An IfcZone groups IfcSpaces and has no independent size or shape. A space can belong to zero, one, or multiple zones.

Workflow and Features

• Create zones: Add the shared instance parameter Zone Name to Revit rooms, then assign the same zone code to rooms in each group—for example, public and private areas.
• Export and verify: Export to IFC, then inspect the zones and their member spaces in DDS-CAD Viewer or BIMcollab Zoom. In BIMcollab Zoom, a Smart View can color spaces by zone.
• Add zone attributes: Additional parameters can provide fields such as long name, object type, and description. Apply the same attribute values consistently to every room in a zone; a room schedule can help verify them.
• Assign spaces to multiple zones: Add further zone parameters, such as a second Zone Name field, to associate rooms with another zone. In the example, a reception space belongs to both an internal and an external zone.
• Group zones: Use the Zone Group Name parameter to place zones into separate IFC groups. The exported IFC then contains group elements and their associated zones and spaces.
• Use property sets cautiously: The tutorial demonstrates adding Pset_ZoneCommon.GrossPlannedArea. Because values appeared to be shared across multiple zones in the example, the presenter recommends using these property-set parameters only when the model uses one set of zone-name parameters.

Tutorial Coverage

• Revit room parameters and schedules for creating and checking zone data
• Exporting rooms as IfcZones and reviewing the IFC in viewer software
• Adding zone attributes, multiple zone memberships, zone groups, and a zone property-set value

Main Speaker and Source

A single presenter from Practical BIM Resources; no other speakers or sources are identified.