hi,
still lacking the possibility to have roofs with components (i know, it'll come in v2016), but it's not restricted to the roofs, just to all newly created non-standard elements, then assigned to ifc entities.
the trouble is with the materials assignment, and apparently also the thickness of the elements. i'm talking mainly about extrudes, which are automatically exported to ifc without material nor dimensions (an example enclosed).
does anybody know where is the proper place to insert this information? is it in further ifc psets, in the oip, or in additional record sets?
thx in advance,
rob