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When conducting a fire alarm test, I noticed the strobes on the 3-story barracks walkways on the exterior do not strobe in unison, but they do in unison per floor. Is this a concern?
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7 Comments
Glenn Berger
6/15/2026 08:10:33 am
The best answer that I can give is: MAYBE
Ricardo Gonzales
6/15/2026 08:50:18 am
No concern. The only concern is on the floor itself in the field of view. This is mentioned in NFPA 72 18.5.5.5.2. The intent is interior to the building only. There is a brief explanation in the Appendix if needed.
Jeff Ayers
6/15/2026 12:14:48 pm
Ricardo, in R2 (Multifamily) we often have interior courtyards (surrounded by the buildings) which require egress back into the building from the courtyards to exit.
Ricardo Gonzales
6/15/2026 12:25:53 pm
That would be correct when the buildings surround an outdoor space. See several of those on 3-5th floors of high-rises.
I agree with Jeff, here in South Fla we have many apartment buildings with open balcony exit access and courtyards.
Matthew Mueller
6/15/2026 09:57:11 am
This is from the INSIGHTS provided by NFPA LiNK <i>"Where a multiple-story building is viewed from the parking lot of the site, flashing visual appliances viewed on each of the building levels might be synchronized on each floor level, but the floors are not necessarily synchronized with each other. This is permitted because the visual appliances are viewed from outside of the building and the intensity of the light from the visual appliances reaching an individual’s eyes is greatly diminished."</i>
Robert
6/15/2026 12:53:32 pm
Not a concern Leave a Reply. |
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