Definition from buildingSMART: The element type (IfcCurtainWallType) defines a list of commonly shared property set definitions of a curtain wall element and an optional set of product representations. It is used to define a curtain wall specification (i.e. the specific product information, that is common to all occurrences of that product type).
NOTE: The product representations are defined as representation maps (at the level of the supertype IfcTypeProduct, which gets assigned by an element occurrence instance through the IfcShapeRepresentation.Item being an IfcMappedItem.
A curtain wall type is used to define the common properties of a certain type of curtain wall that may be applied to many instances of that type to assign a specific style. Curtain wall types may be exchanged without being already assigned to occurrences.
The occurrences of the IfcCurtainWallType are represented by instances of IfcCurtainWall.
HISTORY New entity in Release IFC2x Editon 3.
|PredefinedType||:||Identifies the predefined types of a curtain wall element from which the type required may be set.|