7.1.2.3 IfcPermeableCoveringOperationEnum

7.1.2.3.1 Semantic definition

This enumeration defines the valid types of permeable coverings.

Type	Description
`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`	Upright, fixed or movable, sometimes folding framework used for protection against heat, light, access or similar.
`USERDEFINED`	User defined permeable covering type.
`NOTDEFINED`	No information available.

Table 7.1.2.3.A

TYPE IfcPermeableCoveringOperationEnum = ENUMERATION OF
	(GRILL
	,LOUVER
	,SCREEN
	,USERDEFINED
	,NOTDEFINED);
END_TYPE;