Should be able to cover that with a "sprinkler design in racks independent from the ceiling" in the last few editions with ESFR sized in-rack heads. It's the descendent of the FM 8-9 Scheme A that made its way into NFPA 13 and expanded over the last few years. If you're working from a particular year NFPA I can send you a reference, in 2022 and 25 its near the end of the in rack design chapter.
Mike Morey 2025 NFSA Top Tech Champion<https://www.linkedin.com/posts/national-fire-sprinkler-association_congratulations-to-our-2025-top-tech-winner-activity-7326725245707431936-_5jg/> * NICET IV<https://credentials.nicet.org/47458792-752e-4926-86fc-bd4d47722218#acc.kBTieRXy> * CFPS<https://www.credly.com/badges/c05de73a-dbed-4c31-b1dc-0be93f3151f0/public_url> Project Estimator * Fire Protection Group Shambaugh & Son, LP an EMCOR Company 7614 Opportunity Drive * Fort Wayne, IN * 46825 direct 260.487.7824 / cell 260.417.0625 email [email protected]<mailto:[email protected]> 24/7<outlook-data-detector://2/> SERVICE LINE 888.217.7055<tel:888.217.7055> [cid:[email protected]] From: James Crawford <[email protected]> Sent: Wednesday, April 15, 2026 2:47 PM To: '[email protected]' <[email protected]> Subject: [Sprinklerforum] Exposed Expanded Group "A" Plastics Looking for a protection scheme using in-rack sprinkler heads for exposed expanded Group "A" plastics but can't seem to find one. Building is 30' high, storage to 20' high on single row racks. Thank You James Crawford ZjQcmQRYFpfptBannerStart This Message Is From an Untrusted Sender You have not previously corresponded with this sender. ZjQcmQRYFpfptBannerEnd Looking for a protection scheme using in-rack sprinkler heads for exposed expanded Group "A" plastics but can't seem to find one. Building is 30' high, storage to 20' high on single row racks. Thank You James Crawford Phaser Fire Protection Ltd. Phone 604-888-0318 Cel: 604-790-0938 Email [email protected]<mailto:[email protected]> Web: www.phaserfire.ca<https://urldefense.com/v3/__http:/www.phaserfire.ca__;!!FaxH778!ddi1z7RgfpeQfgl3n8l0OEjivNKeGVNwBlhqcJeYOPXRHhCUQfT3V2StETvi_bYQ1KkkvIWxyKU04-9tUz5Vl_c$> This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient.
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