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IFC standards for cultural heritage buildings

Hi, I am quite new to the IFC topic and this is my first post.

Currently I have seen the list of all IFC entities and was wondering which are suitable to describe cultural heritage buildings as they often have a slightly more complex geometry in terms of “a straight wall” does rarely exist.

Please excuse if I posted this wrongly. If you give me advise, I can change the category / re-post the threat.

Thank you,


Geometry is quite well supported e.g. walls are not limited to straight lines and can be represented by any geometry type available in the schema. This features also the most advanced representations, such as IfcAdvancedBrep where the edges can be represented by NURBS curves and the faces themselves can be curved.

Faceted BRep is also often a good (albeit not parametric) format for arbitrary formed geometry, e.g. slanted walls, cracked beams or deformed slabs.

I don’t see any inherent limitation considering heritage. I experience limitations with the way modern BIM software libraries are focused on current-day libraries, products and materials (e.g. industrially fabricated bricks - with straight mortar lines; Steel & Aluminium profiles).

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