It used to be clear in 2002 but I have not been able to find it in more recent editions.
NPFA 13R 2002 A.6.7.2 It is only the intent of NFPA 13R to reference the sprinkler discharge (flow and pressure), number of design sprinklers and position of sprinklers (distance from walls, ceilings, and other sprinklers) requirements of NFPA 13. Other rules from NFPA 13 such as sprinklering of combustible concealed spaces, hose stream demand and water supply duration are not intended to be referenced by 6.7.2. Taylor Schumacher, CET Security Fire Sprinkler<http://www.j-berd.com/> P.O. BOX 7308 | St. Cloud, MN 56302-7308 3308 Southway Drive | St. Cloud, MN 56301 Office: 320.656.0847 | [email protected]<mailto:[email protected]> From: Sprinklerforum [mailto:[email protected]] On Behalf Of Travis Mack; MFP Design, LLC Sent: Tuesday, August 08, 2017 1:28 PM To: [email protected] Subject: RE: Hose Stream Demand Residential I'm going off of memory - which seems to be slipping as I age - but I don't believe NFPA 13R has a hose stream requirement. However, be cautious of that domestic demand. Maybe I get conservative, but if I have a complex with several buildings on a site water line, I add the domestic demand to the site water loop. That has been in excess of a hose allowance many times. Travis Mack, SET MFP Design, LLC 3356 E Vallejo Ct Gilbert, AZ 85298 480-505-9271 fax: 866-430-6107 email:[email protected]<mailto:email:[email protected]> http://www.mfpdesign.com<http://www.mfpdesign.com/> https://www.facebook.com/pages/MFP-Design-LLC/92218417692 Send large files to us via: https://www.hightail.com/u/MFPDesign LinkedIn: https://www.linkedin.com/in/travismack **PLEASE NOTE NEW ADDRESS** From: Sprinklerforum [mailto:[email protected]] On Behalf Of Jay White Sent: Tuesday, August 8, 2017 10:19 AM To: [email protected]<mailto:[email protected]> Subject: Hose Stream Demand Residential Does NFPA 13R require a hose stream demand? Section A.7.2 of NFPA 13R only reference a hose stream demand requirement of NFPA 13. The only additional demand required in a calculation is the domestic demand if there is a common domestic/fire main as referenced in section 9.6 of NFPA 13R. Jay White Sales/Design Manager Dynamic Fire Protection 9771 Highway 25 South Starkville, MS 39759 PH: 662-312-2426 FAX: 662-324-1545
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