We have a combination sprinkler/standpipe riser through floor-level landings in a stairwell of our building. There is a project requirement to provide a pipe sleeve and "required clearance per NFPA 13".
NFPA 13 gives very clear guidance on clearances in Section 9.3 (NFPA 13 2016 Edition), but that doesn't apply to this project as it is not required to be designed for seismic (Seismic Design Category B).
Where can I determine what clearance needs to be between the pipe and the hole in the concrete stairwell floors/ceilings? I'm not seeing any clearance requirement, but I surely could be missing something. Thanks in advance!
Posted anonymously for discussion. Discuss This | Submit Your Question | Subscribe
Subscribe and learn something new each day:
Thank You to Our Top
October '20 Contributors!
Sprinkler Designer or Engineer?
Get all of our tools, including the Sprinkler Database, Friction Loss Calculator, Fire Pump Analyzer and more:
Daily discussions are open-ended fire protection, fire alarm, and life safety questions submitted anonymously for the benefit of sharing expertise and learning from other perspectives. Anyone can submit a question here:
2020 PE Prep Guide
PE Prep Series
2020 PE Prep Series
(Click to enlarge)
Visit July-October for daily Fire Protection PE Exam sample questions.
Solutions are posted the day after posting.
Comment with your solutions, questions or clarifications.
Please note that questions posted are unofficial and in accordance with NCEES rules are intended to be similar to actual exam questions, not actual exam questions themselves.