Specifies the thickness of the insulation.
Piping
Rule Controlled
Specifies that a rule defined for a parent property controls the value. If Rule Controlled does not display, you can select a value. This option displays when the Insulation Type is Specification Driven.
Rule Driven
Specifies that a rule drives the value. This is the default option. Click to switch
to User Driven 
. This option displays when the Insulation Type is User Defined.
User Driven
Allows you to select a value. Click to switch to Rule Driven .
This option displays when the Insulation Type is User Defined.
The User Driven is not active if:
-
It is not present on the parent pipe run.
-
The Insulation Material on pipe feature does not support the value of the Insulation Thickness on pipe run.
HVAC
If you selected Not Insulated in the Insulation Material box, this property is unavailable.