logoalt Hacker News

pinum • today at 12:21 PM • 2 replies • view on HN

Making the main staircase more fire-resistant is great but I'm not fully convinced by the arguments for removing external ones instead of having both.

If the main stairs do turn out to be impassable for some reason despite the new measures, I'd much rather have the option to risk taking an external fire escape even if it might be rusty or blocked by clutter.


Replies

jccooper • today at 2:25 PM

Every large building in the last 100 years has been built with multiple integral fire-safe paths of egress for the very reason that a path should be available if one is blocked. The design of buildings is very much conditioned on tables in the fire code about how many paths of egress, how large they must be, and how long they can be based on how many people need to be evacuated. (Not to mention how many hours of fire each door and partition must be designed to resist.) It's kind of a PITA. And it works very well.

External fire escapes are merely the retrofit allowed to old single-stairway buildings to get them to be vaguely as safe as a modern building.

➕ show 1 reply
wffurr • today at 12:37 PM

A lot of buildings now require at least two stairwells for buildings over three stories. There's talk in Massachusetts of easing that requirement the requirement to four or six stories, which is more common worldwide and could help build more affordable housing.

https://www.bostonglobe.com/2025/09/28/opinion/stairwells-bu...

➕ show 1 reply