| IFC Host | H | IfcProduct host including IfcElement, IfcSite, IfcBuilding, IfcBuildingStorey or IfcSpace | Geometry | 
| IFC Element Parameters | P | IFC Element Parameters including Name, Description, Identifier etc | Generic Data | 
| IfcCurtainWallType | T | IfcCurtainWallType | Generic Data | 
| Offset | O | Offset Distance | Number | 
| Positive Direction | D | Positive Direction | Boolean | 
| Wall Path Curve | P | Wall Path Curve | Curve | 
| Wall Height | H | Wall Height | Number | 
| Clippings | C | Half Spaced Solid and Swept Area solid Clipping Shape Representations not implemented yet!!! | Geometry |