buildingSMART/IFC4.x-IF

Question about IfcDistributionSystem

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#173 opened on Apr 24, 2025

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help wanted

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Description

I don't get if is it mandatory to export IFCs with IfcDistributionSystem class in Ifc 4 Reference View, when modelling i.e. Ventilation systems? I see a lot of discordance among IFC 4 exported files in the distribution System field.

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Research direction
Review the IFC4 Reference View specification to determine if IfcDistributionSystem is mandatory for ventilation systems. Look at example models or official documentation.
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Documentation
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
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Under 1 hour
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Active
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Clear
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75