Great questions. This originated in the 2015 IFC/IBC. IFC 901.4.6 and IBC 901.8. The section was expanded in the 2018 IFC/IBC. 901.4.6 IFC and IBC 902.1
"Riser room" is an undefined term. The definition sections of the codes say to use "ordinary accepted meaning" and Merriam Webster's Collegiate Dictionary, 11th Edition for undefined terms. Is high rise stair with combined standpipes a "riser room"? Anytime there's a control valve? Flow switch? What's the trigger here? Code development is arduous. This appears to be an attempt to get something into the code. I'd be eager to hear if anyone has firsthand knowledge. I've tried researching back to the original public or committee comment for more info, but it's very hard with the ICC. Jack Fairchild ________________________________ <https://us.report.cybergraph.mimecast.com/alert-details/?dep=1P4vdni%2FtGsUvSvMv1IO6Q%3D%3D6MbccObWlrzxhpedo%2BcKrhUKjxyc48f4CHJzWT9rWipA%2FYPDkGuEoS6JaoASpFBx0fXNw%2BFgs1YwGb9dwFSvcQMADx8QlNta2XVXGJ3gye4gxnc0XeOidBvI7a%2B%2BROr0iOEaQb5ZmyFgDI1r4%2FeflynMWx15pWpIaOiZl9fPizg4GIReL8SLFWp%2FNnt3hrTEGmqAqxVsmrPRKZLhmOKLF61bshJ9h1pDfGVjBzECwTN9nRfscZWZPTYKuYXha0u8D5qq0JVMDtYRZujieJ4gSH6j40wsNbXke4VGQ2V5ZEHEAwZwYeNCVMJXPunn99WvzZJrfpPedhGzT0wHvQHFyHCeJvzcB33Ndc32BrnnEaJ1l16TFCsfLTJ97TVtSfc1ePbnZrOObTsuTQlBtQCWoZgkJjMWjTDvXA2NLjJH8fa373oMnLN1frGRsxyppO99iMFEwpSfaUUwJfe%2FBmbN2SB5nQuweSr32M4ETej3IZxcybZxeCFw95wPYz1JppM1MxD6EKanvbTPpcCbYe4cD6jPHybICEOep%2BxFjjEvQ8E6zh1KSSiwl113e5gRdnoE> What code section(s) determines if/when sprinkler system control valves (system risers) need to be located in a riser room? Is it ever actually a requirement, or just a preference? And what about proximity to exterior access doors? The standard for speculative warehouses in my neck of the woods (desert) is generally to have risers in the pump room, or to have one or more banks of risers positioned around the building, generally next to a man door. But, do the risers have to be immediately adjacent to a door? Or within a certain maximum distance? Are there instances where a dedicated room is required? I realize many jurisdictions might have their own amendments and/or interpretations, but I'm just wondering from a national code standpoint what the driving factors are. Thanks. Kyle Montgomery [cid:[email protected]] Aero Automatic Sprinkler Co. 21605 N. Central Ave. Phoenix, AZ 85024 Direct: 623.580.7820 Cell: 602.763.4736 [email protected]<mailto:[email protected]>
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