Your mechanical, janitor, and recycling rooms don't have a barrier or partition capable of delaying heat from a fire in those rooms from fusing sprinklers in the corridor or bathrooms, etc.?
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 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Hinson, Ryan Sent: Wednesday, March 03, 2010 9:52 AM To: '[email protected]' Subject: Adjacent hazards NFPA 13(2010) section 11.1.2(1) states "Where areas are not physically separated by a barrier of partition capable of delaying heat from a fire in one area from fusing sprinklers in the adjacent area, the required sprinkler protection for the more demanding design basis shall extend 15 ft beyond its perimeter." The appendix gives a storage example. My question is: Is the spacing of the more demanding basis also to be extended that 15 ft for an OH scenario into a LH area through non rated walls? In other words, do I have to protect light hazard corridors or bathrooms with 130 sq ft max sprinkler spacing since they are within 15 ft of mechanical, janitor, and recycling rooms? It seems like overkill to me to have to space heads in a portion of a corridor or bathroom at 130 sq ft unless there are rated walls separating them from the other hazards. Thoughts? Thank you, Ryan L. Hinson, EIT, NICET III Fire Protection Systems Designer, Aviation and Facilities Group Minneapolis-St. Paul Office Burns & McDonnell 8201 Norman Center Drive, Suite 300 Bloomington, MN 55437 Direct: 952-656-6003 Ext 3662 Fax: 952-229-2923 www.burnsmcd.com<BLOCKED::www.burnsmcd.com> Proud to be one of FORTUNE's 100 Best Companies To Work For _______________________________________________ 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)
