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IfcCovering BaseQuantities

Hi there !

I’m looking into quantity take-off for architectural models and I had a question about IfcCovering used for vertical elements (cladding).

I read that the NetArea quantity of IfcCoverings depends on the space limit the element is facing.

So I have two questions about that :

  1. How to handle the facade coverings?
  2. The NetArea extracted is the one from the “floor projection” of the element, how is it approached?

How would you handle this issue knowing that I would like to get the “NetSideArea”?

Maybe it is my understanding of the IfcCovering that is limited!

Thanks a lot for your help :slight_smile:
Best regards from Switzerland!

Mathieu