7.6.2.4 IfcStackTerminalTypeEnum
7.6.2.4.1 Semantic definition
An IfcStackTerminalTypeEnum defines the range of different types of stack terminal that can be specified for use at the top of a vertical stack subsystem.
7.6.2.4.2 Type values
| Type | Description | 
|---|---|
BIRDCAGE
 | 
 Guard cage, typically wire mesh, at the top of the stack preventing access by birds.  | 
COWL
 | 
 A cowling placed at the top of a stack to eliminate downdraft.  | 
RAINWATERHOPPER
 | 
 A box placed at the top of a rainwater downpipe to catch rainwater from guttering.  | 
USERDEFINED
 | 
 User-defined type.  | 
NOTDEFINED
 | 
 Undefined type.  | 
7.6.2.4.3 Formal representation
TYPE IfcStackTerminalTypeEnum = ENUMERATION OF
	(BIRDCAGE
	,COWL
	,RAINWATERHOPPER
	,USERDEFINED
	,NOTDEFINED);
END_TYPE;