IFC (IFC4X3_ADD1) development Pset_CurtainWallCommon Semantic definition

Properties common to the definition of all occurrences of IfcCurtainWall. Applicable entities Properties

Name Property Type Data Type Description
Reference IfcPropertySingleValue IfcIdentifier

Reference ID for this specified type in this project (e.g. type 'A-1'), Also referred to as "construction type". It should be provided as an alternative to the name of the "object type", if the software does not support object types and no classification reference to a recognized classification system used.

Status IfcPropertyEnumeratedValue PEnum_ElementStatus

Status of the element, predominately used in renovation or retrofitting projects. The status can be assigned to as "New" - element designed as new addition, "Existing" - element exists and remains, "Demolish" - element existed but is to be demolished, "Temporary" - element will exists only temporary (like a temporary support structure).

AcousticRating IfcPropertySingleValue IfcLabel

Acoustic rating for this object. It is provided according to the national building code. It indicates the sound transmission resistance of this object by an index ratio (instead of providing full sound absorption values).

FireRating IfcPropertySingleValue IfcLabel

Fire rating for this object. It is given according to the national fire safety classification.

Combustible IfcPropertySingleValue IfcBoolean

Indication whether the object is made from combustible material (TRUE) or not (FALSE).

SurfaceSpreadOfFlame IfcPropertySingleValue IfcLabel

Indication on how the flames spread around the surface, It is given according to the national building code that governs the fire behaviour for materials.

ThermalTransmittance IfcPropertySingleValue IfcThermalTransmittanceMeasure

Thermal transmittance coefficient (U-Value) of an element, within the direction of the thermal flow (including all materials).

IsExternal IfcPropertySingleValue IfcBoolean

Indication whether the element is designed for use in the exterior (TRUE) or not (FALSE). If (TRUE) it is an external element and faces the outside of the building.


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Is this page difficult to understand? Let us know! Changelog IFC4

  • property, Status IFC4.3_DEV_9f90c1f0