nealderidder
Sawhorse
I brought this up in another thread: Lightwell Shaft with Fire Shutters
But I think the question got lost in the bigger issue.
I'm looking at a "shaft" that is basically a light well at the top of an atrium. I met with the AHJ and we concluded that a 2 hr fire barrier is required around the perimeter of the light well at the 3rd and 4th floors.
So what is that barrier? They were OK with rated storefront (pricey) but balked at the idea of non-rated storefront with a fire shutter, didn't like the idea of non-passive protection.
If the barrier were a solid wall with a 4'x4' opening protected by a shutter it would probably be OK? Is it the fact that the size of the "shutter" is 95% of the size of the "barrier" the troublesome thing here?
To get to an actual question - do you think non-rated storefront with a fire shutter (maybe a Won-Door movable fire wall) is a legit solution to providing a 2hr barrier around this shaft? See attached.
Thanks,
But I think the question got lost in the bigger issue.
I'm looking at a "shaft" that is basically a light well at the top of an atrium. I met with the AHJ and we concluded that a 2 hr fire barrier is required around the perimeter of the light well at the 3rd and 4th floors.
So what is that barrier? They were OK with rated storefront (pricey) but balked at the idea of non-rated storefront with a fire shutter, didn't like the idea of non-passive protection.
If the barrier were a solid wall with a 4'x4' opening protected by a shutter it would probably be OK? Is it the fact that the size of the "shutter" is 95% of the size of the "barrier" the troublesome thing here?
To get to an actual question - do you think non-rated storefront with a fire shutter (maybe a Won-Door movable fire wall) is a legit solution to providing a 2hr barrier around this shaft? See attached.
Thanks,