First, since carports aren't addressed in 13R, I think you have to call it a "garage". Next, is this one universal parking area or is it compartmentalized into spaces less than 500 sq. ft. (NFPA 13R, 7.2.3.1 and 7.2.4.1)? Then, are the walls separating it from other compartments rated? 30 minutes? One-hour? Or, is there a building separation that would trigger full NFPA 13 (7.3.1)? Assuming a larger compartment, it'll probably boil down to OH1 per NFPA 13 with area reduction allowed for QR sprinklers.
Steve L. From: Sprinklerforum [mailto:[email protected]] On Behalf Of Rocci Cetani 3 Sent: Thursday, December 15, 2016 12:54 PM To: [email protected] Subject: 13R systems I have a 3 story apartment building, 1st floor has 4 units and a parking area. 2nd and 3rd floors each have 6 units. The Parking area is on the far end of the building under 2 of the 2nd floor units. The parking area has a 1 hr rated wall and door that leads to the 4 units on the 1st floor. In my opinion this isn't really a garage because it's completely open on one side, I look at it more as a carport (please correct me if im wrong)...... I believe I should be using section 7.2.2 (13R 2013) where it states " the design discharge and design area criteria for area protected by quick response sprinklers shall comply with NFPA 13." I'm unsure if this is directing me to calc at OH1 .15/1500 because its automobile parking or if it saying to calc at a .10 over 4 sprinklers per NFPA 13 11.3 ( not sure this section even applies because 13R 6.4.7 doesn't say carports fall under the category where residential sprinklers can be used outside dwelling units. I design maybe 2 residential projects every year so I'm not as in tune with residential standards as I should be. Any guidance is much appreciated. Thank you! Rocci Cetani III, CET Designer Water-Based Fire Protections Systems Layout, Nicet Level III Northern California Fire Protection Services Inc. 16840 Joleen Way Bldg. A Morgan Hill, CA 93037 P-(408) 776-1580 EXT.111 F-(408) 776-1590 [email protected]<mailto:[email protected]> www.norcalfire.com<http://www.norcalfire.com/> CONFIDENTIALITY NOTICE: This message and any document accompanying it may contain confidential information belonging to the sender. The information is intended only for the use of individual or entity named above. If you are not the intended recipient, or the employee or agent responsible to deliver this message to the intended recipient, you are hereby notified that any disclosure, copying or taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this transmission in error, please immediately notify us by telephone to arrange for return of the documents.
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