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The ESFR design standards also limit the height of storage from being within 36 inches of the sprinkler deflector. If you look at your concealed cut sheet and find that the deflector falls 1 1/2" out of the concealed head, you'd be 5 1/2" obstructed by the light (7"-1 1/2"). This is an open space parking area typical for 9 floors. Such rooms usually containstacksofgoods(pallets, merchandise)placed below the sprinkler deflectors,whichmaypreventthe sprinkler spray pattern from reaching the hazard. NFPA 409 NFPA defines obstructions as both continuous and non-continuous. I read that and it isn't to clear to me. March 2020 The home is in a rural area with an isolated well & pressure supply. How to reattach viking fire sprinkler head covers? NFPA 220 December 2021 The building has three rooms. Click the link to submit your question with some information about your building and system, and a fire protection professional will provide an answer based on best practices, standards, and codes. Find the listing on the sprinkler head, and it should have the distance requirements available. Do you have experience and expertise with the topics mentioned in this content? An example of what a discharge or distribution pattern looks like is provided below: (This is from the 2019 edition of NFPA 13, Figure A.9.5.5.1). Deflectors of sprinklers shall be aligned parallel to ceilings, roofs, or the incline of stairs. In fact, for a complex with separate buildings, one of which needs a sprinkler, should sprinklers be installed for all of them or not? Finally, if surface mounting lights nearby is an issue with code, what about recessed lights? Pendent and upright fire sprinklers: whats the maximum allowable distance between two heads? NFPA 13-2016: Standard for the Installation of Sprinkler Systems,Chapter 8,requiresadditionalsprinkler protection below fixed obstructions (such as cable traysandlargeducts) exceeding4ftwidethat preventsprinkler-dischargefrom reachingthehazard. ASTM E1354 Piping Support Hangers . However,everyprojectsitebringsnewchallengesduringsprinklerinstallation. The scenario you described is a non-continuous obstruction to the discharge. If youre looking for versatile standard spray sprinkler heads, take a look at QRFSs selection of UL-listed and FM-approved heads. The question then arises, do we need sprinklers above, no sprinkler protection or coverage above, s where sprinklers have been provided below, . "Sidewall sprinklers shall be installed no closer than 8 ft (2.3 m) to light fixtures or similar obstructions. NFPA 17A from the bottom of the obstruction. Obstructions located against the wall that are notmore than24in. Sidewall heads protecting spaces below overhead doors have maximum distances for light-hazard areas, even when installed in ordinary-hazard environments. October 2018 B:Thespacing from the bottom of the obstruction to the sprinkler deflector. IMC According to NFPA 13, those privacy curtains are not considered obstructions if they follow three rules: Those rules allow heat from the fire and sprinkler water discharge to pass through the mesh portion of the curtain without having a major impact on the sprinkler discharge pattern development or sprinkler activation time.