Is the interstitial space combustible? If so, are you proposing to sprinkler the space with sprinklers that satisfy the listing limitations of the CPVC? Does the CPVC also supply the OH space below?
[Steve Signature (3)] From: Sprinklerforum [mailto:[email protected]] On Behalf Of [email protected] Sent: Wednesday, December 12, 2018 9:29 PM To: [email protected] Subject: CPVC pipe passing thru ordinary interstitial space I have a job that’s a 2 story building with an A truss roof, 1st floor is retail and 2nd floor is residential, the entire building is being sprinklered as per NFPA 13. We want to install sidewalls with multiple CPVC risers and tie everything in 1st floor interstitial space, Question is if there are any limitations of using CPVC pipe in the interstitial above an OHII occupancy.? My initial taught is that since its protecting a light hazard occupancy it should be ok also the pipe is not exposed to the OHII (floor truss is being covered with 1 HR. rated assembly) Does it matter that CPVC passes thru the ordinary space?
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