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IFC Export - Decompose composites to its skins

Johan Stinckens

When exporting an IFC to use for Information Takeoff (Solibri) I would like to have all composites decomposed to their skins, preserving their materials and the ID of the composite they belong to.


I have tried several combinations with either BREP or not, but can't seem to produce what is needed.


When selecting a wall I should not get the whole component, consisting of 3 decompose (forward) elements, but I should have three seperate objects.


I know I can select them seperately (Shift-click) in Solibri, but I need them to actually be seperated, retaining the name information from its "parent" and the material from itself.



Johan Stinckens
BIM Modeller at Atrium Architecten
Archicad user since April 2014 (v17 - v26) - CC iRT i9-12900 - 64 GB / Nvidia Geforce RTX 3080 - Windows 10 Pro 64

Other than that it's hiking, camping, climbing.


In IFC, the length of a wall is defined as: Total nominal length of the wall along the wall center line (even if different to the wall path). 

--- stefan boeykens --- bim-expert-architect-engineer-musician ---
ARCHICAD-user since 1998
Archicad Book


This is something i'm really interested in solving. I want to separate the facade skin from the other skins so that I can use simplebim location editor and connect quantities of the interior part of the wall with the "room volume" for quantity take-off.

AC 25 SWE Full

HP Zbook Fury 15,6 G8. 32 GB RAM. Nvidia RTX A3000.

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