Exhaust fan in rated ceiling

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It is a great fan i have one installed over my bar to remove smoke. Where is this ? private home or -------? You might need to box it in with fire rated drywall. Be best to call fire chief if in commercial building
 
exhaust fan

exhaust fan

if the ceiling is fire rated than any penetration must be protected meaning fire rated hood above it and damper at duct itself when it goes out of that hood. you can buy fire rated exhaust fans, see Broan they have built in dampers. The code exception for 100sq-inch for 100 sqf does not apply to mechanical systems.
I do not know what jurisdiction are you in but in some areas if you install it on the wall and duct therminates directly outside without passing through ceiling or goes into shaft, than it is okey.
ceiling no-no
 
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