As of the 2013.e version, the export to IFC format (Industry Foundation Classes) includes hollow core plates and lost forms of waffle slabs. These elements are not visible in the 3D view generated by CYPECAD but the hollow core plates are exported to IFC in three of the four available formats (IFC 2x3, Revit IFC 2x3, Allplan IFC 2x3) and the lost forms of waffle slabs to the four formats (IFC 2x3, Archicad IFC 2x3, Revit IFC 2x3, Allplan IFC 2x3).
