If I recall correct your design height is 42' minimum. Doesn't matter much if actual is 12'1" or 41'11". See '02 - 12.2.3.1.5.2 but don't see it in other sections like rack in the '02. In '07 it's general so applies to all 12.1.3.4.1.
So like Steve said thinking in-rack is the only Code solution. ESFR out because of the 62'. Clg. only out 'cuz I don't think any of the height modifier charts go that high. 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 Daniel Merkle Sent: Friday, April 10, 2009 11:17 AM To: [email protected] Subject: Re: Storage Sprinkler Sorry, storage hight is 24'-0 which would give me 130% per 14.2.4.3. My concern is the 38'-0" of open space to the roof. What if the roof was 100ft. high? Daniel L. Merkle, CET ________________________________ From: Thom McMahon <[email protected]> To: [email protected] Sent: Friday, April 10, 2009 11:46:19 AM Subject: RE: Storage Sprinkler This is another "Outside the scope of NFPA 13" Situations. Obviously input from the sprinkler MFG.'s is good but they will be reluctant to take any design responsibility for conditions not defined by NFPA 13, or confirmed by testing. Time to hire a "Good" FPE. Even if you just look at Fig. 14.2.4.3, you'll see for 35 foot height you'd need over 200% design density if the graph even went that high. Then you have the additional problem of delayed response for the ceiling height outside of the scope. How do you allow for that? 2x or 3x the design area? You may even be looking at something other than "Control Mode" protection. Deluge? HE Foam? IR detection? Time for professional help outside of the "proscriptive Standard". Thom McMahon, SET Firetech, Inc. 2560 Copper Ridge Dr P.O. Box 882136 Steamboat Springs, CO 80488 Tel: 970-879-7952 Fax: 970-879-7926 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Daniel Merkle Sent: Friday, April 10, 2009 9:06 AM To: [email protected] Subject: Storage Sprinkler Anyone know of a storage sprinkler to protect a 62'-0" high building with solid pile Class 1 storage, stored to 36'-0"? Daniel L. Merkle, CET _______________________________________________ Sprinklerforum mailing list http://lists.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 http://lists.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 http://lists.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 http://lists.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)
