How does an apartment become a 13D design? 13D is for single family and duplexes. Am I missing something?
Jim Johnston, P.E. Fire Protection Engineer Inland Fire Protection, Inc 1100 Ahtanum Road Yakima, WA 98903 Phone 509-248-4471 Fax 509-248-1180 [email protected] -----Original Message----- From: Karen Purvis [mailto:[email protected]] Sent: Wednesday, November 25, 2009 10:10 AM To: [email protected] Subject: RE: RE: concealed space I went back and looked again an I was correct the first time, this will be done as a 13D system. Karen Purvis Senior Designer Facility Systems Consultants 713 South Central Street, Suite 101 Knoxville, TN 37902 ph.865-246-0164 fax 865-246-1084 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of David Blackwell Sent: Wednesday, November 25, 2009 1:02 PM To: [email protected] Subject: [!! SPAM] RE: concealed space I sent a PDF of the table separately but it awaits moderator approval due to exceeding its size... David W. S. Blackwell, II, PE, CFI-I, CFPE Engineering ---------------------------------------------------------------- Office of State Fire Marshal 141 Monticello Trail Columbia, SC 29203 Phone: 803.896.9833 Fax: 803.896.9806 Email: [email protected] OSFM Website: http://www.llr.state.sc.us/firemarshal.asp ---------------------------------------------------------------- -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of David Blackwell Sent: Wednesday, November 25, 2009 12:57 PM To: [email protected] Subject: RE: concealed space What George refers to is a very important aspect of the building code that may be overlooked. The architect's design choices can force you to use a "higher" standard (NFPA 13 or NFPA 13R) system in the building that otherwise falls within the scope of a "lower" standard (NFPA 13R or NFPA 13D) system. The (2006) IBC Code and Commentary Figure 903.3.1.1 contains a useful table for understanding why an architect may specify a higher standard than a sprinkler contractor may think is necessary. David W. S. Blackwell, II, PE, CFI-I, CFPE Engineering ---------------------------------------------------------------- Office of State Fire Marshal 141 Monticello Trail Columbia, SC 29203 Phone: 803.896.9833 Fax: 803.896.9806 Email: [email protected] OSFM Website: http://www.llr.state.sc.us/firemarshal.asp ---------------------------------------------------------------- -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of George Church Sent: Wednesday, November 25, 2009 12:20 PM To: [email protected] Subject: RE: concealed space And you can't use 13R under the 2006 IBC if the design team used the sprinkler increase in order to build it, you can add a story but the SF increase must come from frontage or other, non-sprinkler factors. Doubt this applies to YOUR building as it could also be under the Int'l Existing Building Code. I'D BE AMAZED IF A SCHOOL CONVERTED TO APTS IS ABLE TO BE PROTECTED APPROPRIATELY BY NFPA 13D !!!!!!!! We've done 2 schools and a church converted to apts in the past year, all 13R. There isn't a lot of difference in cost to do it correctly (13R) and if you need to, have em add some 8' deep lintels where the living room ends and a corridor to bedrooms start- you'll not have to flow the corridor heads in that calc with the living/dining/kitchen area. This can get you down to a 2 or 3 head calc, max 4 in 13R. The little country church ended up as a 2-head flow, a challenging 35 GPM at 30 PSI for a water supply- the developer had to change the well pump, big deal. While you may find something on the AFSA site comparing 13r and 13D, the text is available for free reading at www.nfpa.org codes and standards, list of codes and standards, click on 13r, applicable edition in your jurisdiction, and then down at the bottom of the page, click on PREVIEW THIS DOCUMENT and fill out the questionnaire if you aren't logged in already. David offers wise words WRT the IBC impact, although you likely don't have balconies in a school->apt conversion. To ALL my friends on the Forum, best wishes for a thoroughly enjoyable thanksgiving respite. George Church Rowe Sprinkler _______________________________________________ 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) _______________________________________________ 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) _______________________________________________ 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) _______________________________________________ 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)
