internal XbimRoofQuantities(IfcRoof roof) : base(roof, "RoofQuantities") { }
internal XbimRoofCommonProperties(IfcRoof roof) : base(roof, "Pset_RoofCommon") { }
internal XbimRoof(XbimDocument document, IfcRoof roof) : base(document) { _ifcBuildingElement = roof; }