You could definuitely get a variety of different answers to thes questions.
Here is how we answer those questions in Seattle: 1) Yes, a standpipe is required in each stair. 2) Unless you were to use lots of 4 in. pipe (in lieu of 6 in.) we would not require calculations at all for a manual standpipe, we don't require the standpipe flow test at acceptance either, some would call these policies risky. 3) same answer as #2 4) We have local ammendments to the IBC requiring stair access to the roof in all situations, except for steep roofs. We always require a standpipe roof connection when stair access to the roof is required. I can't speak to the situation where there is a flat roof with no roof access in a 6 story building as it does not happen here. I do know some folks I work with that would want a standpipe roof connection in that case. 5) By connected, I assume you interconnecting all standpipe risers, yes that is required. Rich Richardson Seattle Fire Department >>> "Karen Purvis" <[EMAIL PROTECTED]> 08/06/07 12:49 PM >>> For some reason standpipes just baffle me so I have a project that I need some help on. I have a six story apartment/dorm building with a drive through (46') going through part of the first and second floor. The riser is on the first floor on the right side of the drive through. I have a two stairs going 1st-6th floor on the left and beside drive through, stair going 1st-3rd on right of drive through and stair going 1st-5th at right end. Looking at NFPA 14 1. Do I need a standpipe at each stair? 2. I plan on using a manual dry pipe. Do I still need to calculate a minimal flow rate according to 7.10.1 or because it's manual there is no flow rate? 3. Question 2 also applies to pressure. 4. According to 7.3.2 (5) I have to have a connection at highest access to roof. There is no access to roof. Do I still put a connection on the roof? 5. Do these standpipes have to be connected? Karen Purvis Designer Facility Systems Consultants 714 S Gay St Knoxville, TN 37902 ph.865-246-0164 fax 865-246-1084 _______________________________________________ Sprinklerforum mailing list [email protected] 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 [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
