Andy Lindenberg of Allegion sent me this photo – it’s the entrance door to an apartment. We both knew that this was not acceptable – two latching devices that would require simultaneous operation with two hands in order to open the door. In addition to the egress and accessibility issues, it must be a total pain for the residents.
I’ve written before about the requirement for most doors in a means of egress to unlatch with one releasing motion. One of the exceptions to that requirement is on the entrance doors to residential dwelling units and sleeping units. These doors are allowed by the IBC and NFPA 101 to have a “night latch, deadbolt, or security chain” in addition to the latching hardware.
While the second lock in Andy’s photo is not a deadbolt, the language from NFPA 101 specifically includes automatic latching devices when describing the types of security devices that are allowed. Clearly, the application in the photo is a bad idea, but I always like to have something in the code to back up my opinion.
To my surprise, there is something missing from both the IBC and NFPA 101 – language which states that the two releasing motions for the security devices must be non-simultaneous. This would allow the door to be unlatched with one hand, and without the coordination and dexterity that would be required to operate the hardware in the photo.
The 2021 code sections are below (in case you’re doubting me 🙂 ). This change is now on my wish list to fix in future editions of the model codes. In the meantime, keep in mind that most apartments are required to comply with the Fair Housing Act, which references the accessibility standards. Both the ADA Standards for Accessible Design and ICC/A117.1 Accessible and Usable Buildings and Facilities require hardware that is operable with one hand. From a common-sense standpoint, the entrance door shown in the photo would not comply.
1010.2.4 (5) Doors from individual dwelling or sleeping units of Group R occupancies having an occupant load of 10 or less are permitted to be equipped with a night latch, dead bolt or security chain, provided such devices are openable from the inside without the use of a key or tool.
2021 NFPA 101:
18.104.22.168.3.4* Egress door assemblies from individual living units and guest rooms of residential occupancies shall be permitted to be provided with devices, including automatic latching devices, that require not more than one additional releasing operation, provided that such device is operable from the inside without the use of a key or tool and is mounted at a height not exceeding 48 in. (1220 mm) above the finished floor.
A.22.214.171.124.3.4 Examples of devices that, when used with a latch, can be arranged to require not more than one additional releasing operation include night latches, dead bolts, and security chains.