If the original installation was approved under permit and the occupancy / use isn't changing, I think one could argue that all is well.
From: Dewayne Martinez <[email protected]> Sent: Monday, October 21, 2024 1:33 PM To: [email protected] Cc: Dewayne Martinez <[email protected]> Subject: [EXTERNAL] [Sprinklerforum] 1976 NFPA storage question ________________________________ [CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.] ________________________________ I am working on an existing building with the sprinkler systems designed per NFPA 1976 standards. The systems were hydraulically calculated to a 0.60/3000. Unfortunately, I don't have information as to what was the original storage arrangement/commodity classification. There is one grid which is around 50,000 sq ft in size. From what I am reading, a system this large was not allowed back then. The current owner wants to add rack storage (W/O in-racks) of Group A, cartoned, non-expanded plastics. I am going to tell the owner he needs to break up the original system into two to be code compliant but just wanted to check with the forum first. Thank you, Dewayne Martinez Fire Protection Design Manager TOTAL Mechanical Building Integrity W234 N2830 Paul Rd. Pewaukee, WI 53072 [email protected]<mailto:[email protected]> Ph: 262-522-7110 Cell: 414-406-5208 http://www.total-mechanical.com/ [cid:[email protected]]
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