An existing F1 occupancy with no high-piled storage is getting an addition, resulting in the total square footage for the entire F-1 area (all open) being over 50,000 ft sq, thus requiring smoke and heat vents per the 2012 IBC and IFC.
The question was asked if smoke and heat vents can just be added to the new addition and install a draft curtain to separate the existing from new, so smoke and heat vents will not be required in the existing space.
My question is, would a draft curtain be sufficient for creating a divided area in this regard?
There is no true definition of a divided area in either the building or fire codes. I wouldn’t think it would necessarily need to have a fire barrier or partition. I would assume a properly sized trap curtain would be sufficient?
Does anybody have any experience with this unique type of issue, or have any comments or suggestions?
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