khsmith55
Bronze Member
2018 IBC. 6 story podium building, 1st and 2nd Floors Type IA, 3rd thru 6th Type VA. Building has two stair enclosures rated 2 hours. What type of stair construction can I use? I'm thinking two options. First option would be a steel stair for the 1st and 2nd story (Type IA Building) and a wood stair for the 3rd thru 6th stories (Type VA Building). Second option, which might be a bit "creative", would be rate the stair enclosures 3 hours for the 1st and 2nd story and 2 hour rated for the 3rd thru 6th story and use a wood stair for the full height of the building. My thinking being, if you rate the stair enclosure 3 hours you have essentially "turned" down the horizontal 3 hour separation between the Type IA and VA Buildings.
Any input or solutions is appreciated.
Ken
Any input or solutions is appreciated.
Ken