NFPA 14 '03 6.1.2.2 Paraphrase - Standpipe and lateral piping.located in stairs.or shall be protected...equal to stairs ways.
So there isn't a building with standpipes that has less than 1 hour stairs right? So how is there all this standpipe lateral piping running exposed around parking garages and basements? Or through the first floor above common ACT? The sprinkler exception is only for 2.5" lateral piping serving hose connections. What am I missing here? I'm not saying this is not good idea just trying to reconcile with reality. I have a 9 story 1905 building to retrofit with standpipes and the landings on the stairs aren't big enough for a vertical pipe (6") and hose valve. And I ain't talking a few inches. There really aren't landings in one of the required stairs as it's more a spiral stair. First thought was to run adjacent to the stair and put the valves in the stair. It can be done if they then build a rated shaft around the standpipe. So we have an option just confused when this caught me from left field. Chris Cahill, P.E. Fire Protection Engineer Sentry Fire Protection, Inc. 763-658-4483 763-658-4921 fax Email: [email protected] Mail: P.O. Box 69 Waverly, MN 55390 Location: 4439 Hwy 12 SW Waverly, MN 55390 _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
