IFC export breaks up family in seperate elements

[Kimtaurus]

We have a facade model with curtain walls. The Curtain panels are custom panels which include the interior finish, insulation and stone panels. These elements are hosted as shared families in the curtain panel family.

When exporting to IFC, these families are broken up into the individual elements instead of remaining 1 element with several subelements.

I've had the same happening to doors which have nested shared ironmongery.

Is there a way to maintain our curtain panels as 1 element instead of breaking up into 5 or more elements?

[Anonymous]

From my experience it has to do with ifc viewer. Try to open your model using Solibri model viewer (use shift-key if you want to select separate components in nested family).

[Kimtaurus]

We're already using Solibri (Viewer and Checker). The problem isn't that I can't selected the shared nested families, the problem is we've lost the main Curtain Panel familiy and are left with only the shared nested families.

[Anonymous]

Oh okay.. seems then I have the same problem.. Maybe it has something to do with Solibri version/update?

[ilhan3533]

It's an old thread but do you have any solution to this problem? I am having the same issue with my IFC export.

[troop86B5S]

Hi @Kimtaurus , 

Have you tried any of the options below? Or the 3 of them together?

[hwo_osa]

I am pretty sure this is currently a limitation of the Revit IFC exporter.

Shared nested families will always be exported as a separate IFC entity and will no longer belong to the assembly.

See also here:

Decomposition relationship between nested shared family and it's parent · Issue #374 · Autodesk/revi...