Mechanical Shaft Ventilation Requirements 1

[MechItHappen]

Where in the ICC or NFPA does it talk about ventilating mechanical shafts? Does this only apply to high rise buildings because of stack effect? I know about specific ventilation requirements for elevator shafts, but not mechanical shafts.

 

[317069]

What did you mean by mechanical shaft

 

[MechItHappen]

A mechanical shaft filled with ductwork, plumbing and mechanical water pipes.

 

[ChasBean1]

No ventilating requirements. Wherever the ducts penetrate the 2-hour wall to the occupied spaces, a fire/smoke damper might be required (US) and a duct smoke within 5' of said device.