Thanks Ron and Scott. The provision for sprinklers below a mezzanine/deck looks pretty obvious as far back as the '55 edition.
The requirement for sprinklers blow other obstructions which were not defined specifically may be more difficult upon which to render an opinion. Was there any other general wording related to "obstructions to discharge over 4ft in width"? Craig L. Prahl, CET Fire Protection CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Scott A. Futrell Sent: Wednesday, February 09, 2011 9:59 AM To: [email protected] Subject: RE: How far back in NFPA 13 - Obstructions Craig, "NFPA 13, 1955, 715. (a) Decks. Sprinklers should be installed under decks and galleries unless they do not exceed 4 feet in width, with at least 6 inches clearance from the wall or partition and with arrangements to keep all stock a similar distance from the wall or partition. See section 201." Inside front cover in definitions: "The word "should" indicates advisory provisions." I don't see anything else about obstructions, but there are actually several pages in the location and spacing chapter. Let me know if you need more. Scott Futrell (763) 425-1001 Office (612) 759-5556 Cell -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Wednesday, February 09, 2011 7:58 AM To: [email protected] Subject: How far back in NFPA 13 - Obstructions Got an issue with a client. Industrial chemical processing building, built circa 1940's give or take. Building has sprinklers. Sometime possibly in the 60's -70's an access platform was built (20ft by 40ft+/-) and no sprinklers were provided below. Also some vessels were not provided with sprinklers below. Here's the question to whoever has the oldest edition of NFPA 13, what edition do you have and does it address sprinklers below obstructions? What is the specific wording? If you can PDF that page with the edition and e-mail it to me that would be most excellent! Thanks, Craig L. Prahl, CET Fire Protection CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] _______________________________________________ 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)
