Class

Zone

Code

IfcZone

Class type

Class

URI

https://identifier.buildingsmart.org/uri/buildingsmart/ifc/4.3/class/IfcZone

Definition

A zone is a group of spaces, partial spaces or other zones. These spaces may or may not be adjacent. A zone does not have its own shape representation. Zone structures may not be hierarchical (in contrary to the spatial structure of a project - see Spatial Structure Element), i.e. one individual Space may be associated with zero, one, or several Zone's. Space's are grouped into an Zone by using the objectified relationship IfcRelAssignsToGroup as specified at the supertype Group. For example, a zone might be used to represent an apartment as a group of spaces.

Dictionary

IFC

Dictionary version

4.3

Dictionary release date

2024-01-11

Dictionary license

Dictionary state

Preview

Parent class

Status

Active

VersionDateUtc

2024-01-12

Uid

297645fa-0024-45cd-8573-d15fd241897a

Class properties
Property set: Attributes

Optional description, provided for exchanging informative comments.

Assignment of a globally unique identifier within the entire software world.

Long name for the context as used for reference purposes.

Optional name for use by the participating software systems or users. For some subtypes of IfcRoot the insertion of the Name attribute may be required. This would be enforced by a where rule.

The type denotes a particular type that indicates the object further. The use has to be established at the level of instantiable subtypes. In particular it holds the user defined type, if the enumeration of the attribute PredefinedType is set to USERDEFINED or when the concrete entity instantiated does not have a PredefinedType attribute. The latter is the case in some exceptional leaf classes and when instantiating IfcBuiltElement directly.

Property set: Pset_AirSideSystemInformation

The air flowrate required to satisfy the sensible peak loads.

This enumeration defines the basic types of air side systems (e.g., SingleDuct, DualDuct, Multizone, etc.).

This enumeration specifies the basic types of possible air side systems (e.g., Constant Volume, Variable Volume, etc.).

Diversity of appliance load.

Cooling temperature difference for calculating space air flow rates.