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About model and data exchange with 3rd party solutions: Revit, Solibri, dRofus, Bluebeam, structural analysis solutions, and IFC, BCF and DXF/DWG-based exchange, etc.

Roofs appear as "IfcSlab" after export to IFCxml

Anonymous
Not applicable
Hi to All,

I use ArchiCAD 15 and when I export a model of a 2-floors building with
standart Roof (45 degrees, 4-sided) , when I export this model to IFCxml file format, the roof is exported as Slab.

Instead of exporting it as IfcRoof ArchiCAD exports it as IfcSlab, and this way important Info as Roof's Offset, Height and Angle are lost.

Why this Bug happens?

Is there a workaround ?
1 REPLY 1
Laszlo Nagy
Community Admin
Community Admin
Check the Element Classification Field for the Roofs. They may be set to "Slab" and this is why it is exported as Slab to IFC.
YOu can specifically set this field to Roof and then it should export them as IFCRoof.
RooftoIFCRoof.png
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