Are the aisles narrow like 30-48”? The cat walks are likely considered obstruction to the ESFR roof system.
Therefore QR sprinklers are required below the cat walks. See Section 20.7.3. for ESFR. Does this qualify with these 10 requirements? Art Tiroly ATCO Fire Protection/Tiroly 24400 Highland Rd CLE 44143 216-621-8899 216-570-7030 cell From: Sprinklerforum [mailto:[email protected]] On Behalf Of Zachary Siegrist Sent: Tuesday, April 03, 2018 4:34 PM To: [email protected] Subject: Special Designs of Storage Protection Section 20.5 (2013 ed.) All, I am an AHJ and was called to inspect a installation for protection of carton record storage for a single- level catwalk. The existing ceiling level protection is an ESFR system. Section 20.5.6.2.1 states that ceiling sprinklers spaced to cover a maximum of 100 SF shall be standard response spray sprinklers with K-factors per Section 12.6. Is this explicitly stating that there can't be an ESFR system at the deck level (35 feet AFF) b/c of its fast response element? Does Section 12.6.6 make this permissible? Appreciate any feedback I can get. Zach --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
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