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I have a double fire wall (two masonry walls next to each other with small air gap in-between). I need to have a door in each wall.
The doors would have to swing opposite directions, I think, which means a double Firewall could not be used in an egress condition where doors both have to open in the direction of travel to the exit. It sounds like I need a tied or cantilevered Firewall instead of a double Firewall. Is this correct, or are there any other approaches to a door within a double Firewall? Posted anonymously for discussion. Discuss This | Submit Your Question | Subscribe
3 Comments
Todd Wyatt
11/10/2020 10:23:06 am
Doors are only required to swing in the direction of egress, per 2018 IBC 1010.1.2.1, where a room or space serves 50 occupants or more or serves a Group H Occupancy.
Justin Milne
11/10/2020 10:37:38 am
This is the code path that was followed -
Herman
11/13/2020 09:09:28 am
i have successfully provided egress thru double fire walls on many projects of either steel or concrete frames, so it is absolutely doable. for a variety of projects i have provided automatic horizontal sliding doors along with swing doors for egress. the swing direction always confuses folks but with NFPA 221 in hand i have always been able to get owners and AHJs to agree and approve the arrangement. so first you need to determine if egress thru the double fire wall is required. is this an existing built condition? is each masonry wall supported laterally by independent framing? what is the joint size between your walls? there is a table in NFPA 221 that determines minimum joint size. Leave a Reply. |
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