IFC (IFC4X3_ADD2) under development Pset_ChimneyCommon Semantic definition

Properties common to the definition of all occurrence and type objects of chimneys. 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).

NumberOfDrafts IfcPropertySingleValue IfcCountMeasure

Number of the chimney drafts, continuous holes in the chimney through which the air passes, within the single chimney.

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.

ThermalTransmittance IfcPropertySingleValue IfcThermalTransmittanceMeasure

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

LoadBearing IfcPropertySingleValue IfcBoolean

Indicates whether the object is intended to carry loads (TRUE) or not (FALSE).

FireRating IfcPropertySingleValue IfcLabel

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


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