The wood framed walls, but I am being told they have layers of drywall on them to create this 3 hour fire rating. Bruce
-----Original Message----- From: Sprinklerforum <[email protected]> On Behalf Of Fpdcdesign via Sprinklerforum Sent: Thursday, June 24, 2021 6:24 AM To: Sprinklerforum <[email protected]> Cc: Fpdcdesign <[email protected]> Subject: Re: Sprinklers in stairways Is there any combustible construction within the stairway? Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT 860-535-2080 (tel:860-535-2080) (ofc) 860-554-7054 (tel:860-554-7054) (fax) 860-608-4559 (tel:860-608-4559) (cell) > > On Jun 24, 2021 at 6:17 AM, <Bruce Hermanson via Sprinklerforum (mailto:[email protected])> wrote: > > > > We have a wood framed building where the stair shaft is made of wood with drywall that gives it a 3 hour fire rating. The stairs are steel and concrete. I have been asked if we need to provide sprinkler heads at each level or just at the top and below the lowest landing. We are currently in the 2013 edition of NFPA 13. I am a bit confused on the wording in Section 8.15.3.1 where they reference sprinklers beneath all stairways of combustible construction. Section 8.15.3.2.1 references non combustible stair shafts having non combustible stairs with non combustible or limited combustible finishes requiring sprinklers only at the top and under the first accessible landing. I would be interested in the forum's opinion on this. Bruce Hermanson President TSFP Holdings Inc. (734) 454-1350 (tel:(734)%20454-1350) _______________________________________________ Sprinklerforum mailing list [email protected] (mailto:[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 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
