ADDITIONAL IFC PARAMETERS IN REVIT

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ADDITIONAL PARAMETERS REQUIRED FOR IFC & COBIE

The parameters provided out of the box from Revit do not map directly to attribute fields in IFC. There are several additional parameters that need to be created in order to do this. The table below outlines the most common parameters required and what they are used for.

 

PARAMETER

TYPE OR INSTANCE

ADD TO CATEGORY

DESCRIPTION

IfcDescription Instance Any component category Defines/overrides the type description for each instance of a component when exported to IFC.
IfcExportAs Type Any component category Instructs the IFC export to assign a specific entity to a component.
For example, when a floor is used to model floor finishes but assign it as IfcCovering
An enumerated predefined type may also be included e.g. IfcCovering.CLADDING
If the predefined type is not specified exports as NOTDEFINED.
IfcExportType Type Any component category Instructs the IFC export to assign a specific IFC predefined type to the component.
If set, overrides a predefined type defined using IfcExportAs
IfcName Instance Levels Renames any level exported to IFC and COBie.Floor.Name. Allows you to name the levels internally as needed for drawing creation and to project standards when converted to IFC.
This parameter can also be used to define/override the name for both object instances and type objects. For example, to define the object number where Mark isn’t available.
IfcPresentationLayer Type Any component category This defines/overrides the layer name for each instance of a component when exported to IFC.
For example, assigning A-Ss3042M-FloorCoveringAndFinishing as a layer name to a floor being exported to IfcCovering.
SiteName Instance Project Information Names the IFC Site and populates the COBie.Facility,SiteName field. If this is not added and completed, the site ends up being called Default.
ZoneDescription Instance Areas and Rooms Specifies the description of the zone that the area/room belongs to when exported to IFC and COBie.Zone.Name.
For example, Zone 02 Ground Floor.
ZoneName Instance Areas and Rooms Specifies the name of the zone that the area/room belongs to when exported to IFC and COBie.Zone.Name.
For example, Z0.2

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