A project I'm on has a lobby area with a 35-foot tall ceiling next to the elevator door.
NFPA 72-2010/2013 Section 184.108.40.206.3 and 220.127.116.11.4 allows a smoke detector within 60-inches of the top of each elevator door to protect the opening. This can be used for elevator recall.
In addition to this smoke detector, do I also need one at the ceiling (35-feet) for normal coverage?
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