Jul 19, 2018 #1 engineerfin Automotive Feb 22, 2015 62 On 2hr stair towers, with 90 min doors, do the thresholds need to be special or can they be undercut. I didn't see anything in nfpa 80
On 2hr stair towers, with 90 min doors, do the thresholds need to be special or can they be undercut. I didn't see anything in nfpa 80
Jul 19, 2018 #2 cdafd Specifier/Regulator Aug 18, 2005 2,918 if you email this person, you will get a great answer https://idighardware.com/about-2/ Upvote 0 Downvote
Jul 19, 2018 #3 stookeyfpe Specifier/Regulator Mar 13, 2005 1,882 Does the shaft have a stair pressurization system? Upvote 0 Downvote
Jul 19, 2018 #4 cdafd Specifier/Regulator Aug 18, 2005 2,918 https://idighardware.com/2017/10/fire-door-clearances-webinar-notes/ Upvote 0 Downvote
Jul 20, 2018 Thread starter #5 engineerfin Automotive Feb 22, 2015 62 Its not pressurized. Upvote 0 Downvote
Jul 20, 2018 Thread starter #6 engineerfin Automotive Feb 22, 2015 62 p.s. what determines if the stairway tower needs to be pressurized. Upvote 0 Downvote
