BIM Coordinator Program (INT) April 22, 2024

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How to draw zones for a correct IFC export and usage.


Hello everyone, 


I have a question regarding the height and position of the zones in the model: 


Should zones be drawn from finish floor to finish ceiling or should they be drawn from concrete slab to concrete slab and then subtract the finishes with a formula on the property manager? 
The advantage of drawing from finish floor to finish ceiling is that I get the clear height directly from the room, without the use of formulas. I can also getter wall area from the room and use it for a cost estimation.
I do not know how this affects the whole ifc Modell when it comes to recognizing the MEP elements that don’t touch the ifc zone.

Is there a standard and defined Ifc workflow for drawing and exporting zones?

I hope I explained myself correctly. 


I appreciate your help.

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