kitchen ceiling drop code in multi family?

I need a little help …. is it mandatory to drop the ceiling in the kitchen area by 12″ in a 3 family for fire code?
How big is the area that needs to be dropped, how far does it have to extend from the kitchen counter?

Augustiner

in Dept. of Buildings (DOB) 11 years and 10 months ago

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arch007 | 11 years and 10 months ago

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There is a code, it’s a smoke curtain, 12″ down from the clg.not sure how far off the counter but usually it would be around the perimter of the kitchen. I was once told it was not required if the bedrooms had doors. (this one particular project had a 6′ sliding japanese screen door to the bedroom, so they made me have it, but then I was allowed to use a nearby existing wood girder as a substitute. as a substiture

Augustiner | 11 years and 10 months ago

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Another mystery code nobody knows about ….

brucef | 11 years and 10 months ago

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Official attempt #2

brucef | 11 years and 10 months ago

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Here is a kitchen I did last year. Don’t know if you can see the 12″ drop arch.   Well, I can’t tell if the image uploaded??

Augustiner | 11 years and 10 months ago

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Thanks Brucef … I am told by my architect that it´s code to lower the ceiling – confused ….

brucef | 11 years and 10 months ago

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I usually see the “drop arch” squaring off the area of the kitchen, with mechanical ventilation required. Not necessary with window, just interior location, to keep smole from spreading.