VAD meets the international
standard for ventilation air duct fire protection (ISO
6944). It is available as a 1-hour or a 2-hour system.
The blankets are available unfaced, faced one-side with
a scrim-reinforced aluminum foil, or encapsulated. Both
the refractory ceramic fiber (RCF) and the body-soluble
fiber (CMS) blankets have been successfully fire tested.
VAD is used to fire protect HVAC ducts, return
air ducts, smoke purge ducts, and similar general purpose
VAD is classified by Underwriters Laboratories
and Omega Point Laboratories.