Assuming the building code that's applicable to this project classifies this as two separate buildings (a four-story Type 3 on a single-story Type 1 podium), NFPA 13R can be used as a basis of design in many (most?) jurisdictions. It is up to the building official to clarify whether a two- or three-hour separation is required between the podium and upper floors, but this is commonly viewed as two separate buildings.
I have served as member of the NFPA Technical Committee for Residential Sprinklers, but this is MY opinion only. Steve Leyton, President Protection Design and Consulting T | 619.255.8964 x 102 | www.protectiondesign.com 2851 Camino Del Rio South | Suite 210 | San Diego, CA 92108 Fire Protection System Design | Consulting | Planning | Training -----Original Message----- From: Sprinklerforum <[email protected]> On Behalf Of tstone52--- via Sprinklerforum Sent: Tuesday, November 09, 2021 12:42 PM To: [email protected] Cc: [email protected] Subject: 13R Installation of Sprinkler Systems in Low-Rise Residential Occupancies Am I reading the Scope of 13R correctly? I am designing a Sprinkler system for a building which is five stories in height. Each floor is about 5,500 SF. The Ground floor is a parking garage of concrete & steel (Type 1a construction) with 4 stories of Residential above which constructed of wood (Type 3B Construction). The parking garage shall be protected by a Dry Pipe System designed in accordance with NFPA 13. There is a 2 hour Occupancy Separation between Garage & The Second Floor. The Second thru Fifth levels are to be protected by a NFPA 13R Sprinkler System. The overall building height measures less than 60' above grade. NFPA 13R Scope: states this standard shall cover ____ "residential occupancies up to and including four stories in height in buildings not exceeding 60 ft. in height above grade plane." Due to the phrase "in Buildings" am I interpreting this correctly? Regards, G. Tim Stone G. Tim Stone Consulting, LLC NICET Level III Engineering Technician Fire Protection Sprinkler Design and Consulting Services 117 Old Stage Rd. - Essex Jct., VT. 05452 CELL: (802) 373-0638 TEL: (802) 434-2968 <mailto:[email protected]> [email protected] _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
