Sylvain H
REGISTERED
Is this possible in Canada to have such a security door in the middle of an intermediate landing in an exit stairway? I don't think so because just by being there it could slow down or delay the emergency response operations.
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Security doors within an interior exit stairway, on an intermediate landing between the ground floor (exit level) and the first parking level below.
- Thread starter Sylvain H
- Start date
- Featured
steveray
SAWHORSE
Define security door and welcome to THE forum!
Sylvain H
REGISTERED
From what I know the door on the drawing is there to block the access to the basement parking spaces.
steveray
SAWHORSE
If it does not actually stop egress, the concept is sound, but the landing and a bunch of other stuff could be a problem....
Sylvain H
REGISTERED
I thought it would go against the NBC intent statements like it could slow down the evacuation interventions just because the door is there. Very interesting. From what I can figure out the second purpose of that door has to do with smoke control in case of a fire.
I cannot speak to the Canadian code, but although odd, I do not see it as a problem as long as the required egress width is maintained and the path of egress is not inhibited during an emergency event. If the door is secured, then it should fail-safe (i.e. unlock) during an alarm or power outage, regardless of which direction the access is blocked (sometimes, people need to go up to find a clear path of egress should the stairs be blocked below).
Additionally, in the US, a barrier is required at the level of exit discharge to prevent occupants from unintentionally continuing down a stairway past the level of exit discharge (IBC 1023.8, 2024 edition). In this situation, a simple gate will suffice and is not intended to be a security measure.
Additionally, in the US, a barrier is required at the level of exit discharge to prevent occupants from unintentionally continuing down a stairway past the level of exit discharge (IBC 1023.8, 2024 edition). In this situation, a simple gate will suffice and is not intended to be a security measure.
steveray
SAWHORSE
Exactly the code section I was thinking of...And I also don't do Canada....