It is in the stair. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dyce Geoffrey H. Sent: Thursday, July 24, 2008 11:17 AM To: sprinklerforum@firesprinkler.org Subject: RE: Standpipe/Stair arrangement
Where is the standpipe located? It cant be in the stairwell! -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Fletcher, Ron Sent: Thursday, July 24, 2008 1:34 PM To: sprinklerforum@firesprinkler.org Subject: RE: Standpipe/Stair arrangement Yep, we are putting valves on the floor landing for one half of the scissor stair and valves on the intermediate landings for the other half. Thanks to everyone that contributed, as usual it has been quite educational. Ron Fletcher Aero Automatic Phoenix, AZ -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Drucker Sent: Thursday, July 24, 2008 8:52 AM To: sprinklerforum@firesprinkler.org Subject: RE: Standpipe/Stair arrangement Apples and Oranges. The IBC Chapter 10 issue is means of egress, and accordingly separation of same (remoteness). Since scissor stairs don't satisfy the remoteness test they in the context of Chapter 10 (1015) are considered one stairway. The IBC Chapter 9 issue is fire suppression, and accordingly requires that Class I hose connections be provided in all of the following locations; "In every required stairway". Within the context of Chapter 9 (905.4) scissor stairs are two stairways. John Drucker Fire Protection Subcode Official (AHJ) Red Bank, New Jersey -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Steve Leyton Sent: Thursday, July 24, 2008 11:17 AM To: sprinklerforum@firesprinkler.org Subject: RE: Standpipe/Stair arrangement More confusion. Back to Steve K.'s point about it only counting as one stair (thanks for that, BTW), I still think that you have to provide a complement of Class I connections on BOTH sets of landings. Even if a scissor is only considered one stair, it's most certainly a required exit stair and if you can't guarantee the fire fighter ingress route, I think you have to account for either or both sides of the scissor being used. Steve Leyton Protection Design & Consulting -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dyce Geoffrey H. Sent: Thursday, July 24, 2008 5:35 AM To: sprinklerforum@firesprinkler.org Subject: RE: Standpipe/Stair arrangement That is correct Steve, at least here in Florida. However, we cannot run the standpipe within the stairwell as we penetrate alternating fire levels with the standpipe. Here, we need permission from the fire marshal to do that. Geoff Dyce -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Steve Leyton Sent: Wednesday, July 23, 2008 6:44 PM To: sprinklerforum@firesprinkler.org Subject: RE: Standpipe/Stair arrangement Don't know if there's an official moniker, but we call it a scissor stair and it's an architectural device that satisfies at least two of your required exits and gets a LOT of your occupant load out of the building in a relatively smaller (and localized) footprint area. The code requires that standpipe connections be located at either the intermediate or floor level landings of every required exit stair so I believe it is correct to put a standpipe connection at the landings of EACH stair (i.e. two per level within the shaft) because you have two stairs. Steve Leyton Protection Design & Consulting The foregoing is my opinion only and is not intended to represent the Technical Committee on Standpipe Systems, nor serve as an interpretation of NFPA 14. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Fletcher, Ron Sent: Wednesday, July 23, 2008 3:32 PM To: sprinklerforum@firesprinkler.org Subject: Standpipe/Stair arrangement This is a tough one to put into words, drawings would better explain. We have a stair tower (one of three) in a hotel that has two entrance/exits on the first through fourth floors and one door on the other 27 floors. There is no dividing wall between the stairs. Imagine two people enter through separate doors on the first floor and as they head up the stairs they pass each other halfway up to the intermediate landings. You could actually climb over the railings from one stair to the other. We have installed a single standpipe through the floor landings on floors 5-27 and continued to the first floor. Now the AHJ is thinking we need a hose valve adjacent to the other entrance on floors 1-4. Both doors access the same fire area. I hope y'all can decipher. Ron Fletcher Aero Automatic Phoenix, AZ _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) CONFIDENTIAL AND PROPRIETARY: This email message is intended only for the use of the individual or entity to which it is addressed and may contain information that is privileged and confidential, nor is it, unless specifically stated, intended to be relied upon by any person or persons other than the individual or entity named above and no warranties or representations are made or intended to persons or entities not named above. 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