Pset_PermeableCoveringProperties Properties of the permeable covering. >HISTORY  New property set in IFC4.3.2.0 to replace the entity IfcPermeableCoveringProperties IfcDoor IfcMember IfcWindow IfcDoor,IfcMember,IfcWindow OperationType Type of operations. Also used to assign standard symbolic presentations according to national building standards. For a permeable covering, it is the type of permeable covering operations. Also used to assign standard symbolic presentations according to national building standards. GRILL LOUVER SCREEN OTHER NOTKNOWN UNSET GRILL Protective screen of metal bars or wires. LOUVER Set of fixed or movable strips of wood, metal, etc. arranged to let air in while keeping light or rain out. SCREEN OTHER required category not on scale (other) Value is not listed. NOTKNOWN Value is unkown (unknown) Value is unknown. UNSET Value has not been specified (unset) Value has not been specified. PanelPosition Position of the panel. For a permeable covering, it is the position of the permeable covering panel within the overall window or door type. BOTTOM LEFT MIDDLE RIGHT TOP OTHER NOTKNOWN UNSET BOTTOM Bottom LEFT Left MIDDLE Middle RIGHT Right TOP Top OTHER required category not on scale (other) Value is not listed. NOTKNOWN Value is unkown (unknown) Value is unknown. UNSET Value has not been specified (unset) Value has not been specified. FrameDepth The length (or depth) of the frame. For a permeable covering, it is the depth of panel frame (used to include the permeable covering), measured from front face to back face horizontally (i.e. perpendicular to the window or door elevation plane). FrameThickness The thickness of the frame. For a permeable covering, it is the width of panel frame (used to include the permeable covering), measured from inside of panel (at permeable covering) to outside of panel (at lining), i.e. parallel to the window or door (elevation) plane.