January 2020 What is the minimum distance below sprinkler head? What type of sprinkler head has a special coating such as wax or lead? The maximum distances vary from 12 inches to 18 inches. If you need further assistance, please contact the Office of General Industry Enforcement at (202) 693-1850. NFPA 13, Standard for the Installation of Sprinkler Systems, generally allows the following obstructions in Sections 8.12.5.1, 8.12.5.2, and 8.12.5.3: Sprinklers installed per the allowable distances from near or at ceili ng obstructions in Table The minimum vertical clearance between sprinklers and material below shall be 18 inches (45.7 cm). Any fixture within the spray pattern would have to be . NFPA 10 Does aliquot matter for final concentration? That is an urban legend according to a few sprinkler inspectors I've spoken to. Note that it does state that sprinklers special obstruction allowances shall be installed according to their listing. Passive Building Systems October 2019 NFPA 1 Fire Dynamics Figure: 30 TAC 285.91(10), where you will see that "property line" clearance distance is FIVE FEET or less. In addition to the specific circumstances referenced in our response to question 2, the 18-inch clearance does not apply to vehicles in parking garages. My state's architect responsible for Life Safety has said that his interpretation of this is that the deflector must be at least 4" from the wall. However, best practices dictate that spacing of the sprinkler heads range between 12-15 feet, according to the NFPA. NFPA 14 NFPA 495 The latest Fire Service Act can protect more than 200 square feet with a single head in some environments. Sprinkler Head . The employer shall assure that sprinklers are spaced to provide a maximum protection area per sprinkler, a minimum of interference to the discharge pattern by building or structural members or building contents and suitable sensitivity to possible fire hazards. "8.12.5.2* Isolated Obstructions Below Elevation of Sprinklers. IRC November 2022 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"). Can lights set off sprinklers? For sidewall heads, that's the distance from an end wall (10.3. Only acceptable exceptions are listed by NFPA, such as removable tables Same rule applies for all sprinklers (even though more restrictive in term of width with ESFR): It depends on the type sprinkler head. NFPA 13D The standard does not provide a specific distance below the sprinkler head that obstructions become a problem. These obstructions (including structural members, lights, ducts, decks, open grate flooring, overhead doors, and partial height walls) should be considered in the initial design and installation of the sprinkler system. Sincerely, The sprinklers spray at an angle of approximately 45 degrees. Why is apparent power not measured in watts? Does the collective noun "parliament of owls" originate in "parliament of fowls"? Thanks for contributing an answer to Home Improvement Stack Exchange! This letter constitutes OSHA's interpretation of the requirements discussed. For example, if you move . Spacing of lights should follow this standard. Hanging decorations, banners, plants, or any other materials form sprinkler heads. Distance from Ceiling: minimum 1, maximum 12 for unobstructed . https://www.fmglobal.com/-/media/Documentum/Data-Sheet-Individual/02-Sprinklers/FMDS0200.pdf?isGated=true&itemId={993E5163-0BFB-47CB-BD99-442324FE7F93} How close can garage overhead storage be to fire sprinklers? ADA #9. What Distance Under Sprinkler Is No Longer An Obstruction. 18 inches 3. FM Global Minimum Distance from Septic Components . Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. The room is 16x13' and 17' tall, with 2 heads, 9' apart. Attaching cable trays, ducts, or wiring to sprinkler pipes of sprinkler bracing. One of the more common issues we come across is the obstruction of sprinkler heads. As an electrician, I don't concern myself with sprinkler codes since my lighting layouts are set by architectural design. Minimum Distance Between Sprinklers: typically 6-0. 18" Occupant load is calculated based on the _____, not the occupancy type. Of course this presumes that you are NOT blocking the entire fire sprinkler discharge with the light, and there is the requirement that an installation must meet with the code official's approval. November 2017 To subscribe to this RSS feed, copy and paste this URL into your RSS reader. With heat detectors this figure is 7.5m x 7.5m, giving an area of coverage of 56m per device which is rounded down to 50m. The distance below ceilings for ESFR sprinklers is strictly based on the sprinkler orientation, pendent or upright; and k-factor. The minimum spacing between two sprinklers is 6 feet. NFPA 13 (2007) mentions one instance where the 18-inch clearance is not needed. Accidental Overheating 8.5.5.3 Obstructions That Prevent Sprinkler Discharge from Reaching the Hazard. There are some cases where zero clearance is acceptable (recessed light next to dropped sprinkler head). This answer is: Please consult with an engineer or licensed design-build contractor for additional information in your area for specific information applicable to your building and fire codes. Makes sense to me but can't find the art. OSHA requirements are set by statute, standards and regulations. Ms. Jean Przybocki PE Sample Problems February 2020 or greater. The light fixtures I would like to use are about 4" tall. When a fire is declared, a sprinkler spray pattern that . corrosion-resistant. NFPA 110 (1/2) of the maximum distance between sprinkler heads. NFPA 70 8.1.3.1.2 The maximum distance between sprinklers shall not exceed 12 ft (3.7 m) on or between pipelines. January 2022 August 2018 Subscribe and learn something new each day: Get 100 Days of Free Sample Questions right to you! October 2016 OSHA does not impose penalties or require abatement of de minimis violations. For sidewall heads, that's the distance from an end wall (10.3.4.3.1). The minimum 1" is typical; however, concealed, recessed, and flush sprinklers may be mounted less than 1" from the ceiling and shall be installed based on their listing. October 2017 How to reattach viking fire sprinkler head covers? Great Question! We questioned if this applied to things like rails near the floor to protect walkways from forklifts, and were told that it does. The area within the 2-foot radial distance has a significantly higher density than the measurements at 4, 6, 8, and 10 feet. Find the listing on the sprinkler head, and it should have the distance requirements available. A sidewall sprinkler shall be permitted to be installed under a soffit when both the minimum distance from the sprinkler deflector to the bottom of the soffit and the maximum distance from the sprinkler . The burden is on employers to demonstrate that they fall within this exception. September 2022 18 Portable fire extinguisher (PSB approved type) shall be provided at every 15 m. Response 1: No. . Thank you for your January 30, 2008 letter to the Occupational Safety and Health Administration (OSHA) requesting clarification of OSHA regulation 29 CFR 1910.159(c)(10), Sprinkler spacing. Sprinkler heads must be 1 feet from easement edge: 1: Overhead Easements. Unfortunately, the response was that anything can be considered an obstruction to and ESFR sprinkler, no matter the distance from it. Word of advice is to provide a preliminary layout of the ESFR sprinklers with the steel background should be provided to the client/GC for in-depth coordination of lights/HVAC/plumbing/HVLS fans etc. Extended Coverage Sprinkler Heads Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company. One sprinkler can cover an impressively large area. This letter constitutes OSHA's interpretation of the requirements discussed. May 2021 Question 2: What are the requirements for storage items that are horizontal (to the side of) sprinkler systems? Spacing of lights should follow this standard. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. 1995-2022 SAFTENG.net LLC. I know from first-hand experience that the ones at work spray at a 45 degree angle, but the ones I saw would definitely spray almost horizontal. June 2019 NFPA 1142 July 2018 or greater from the nearest edge of the obstruction. NFPA 101 Making statements based on opinion; back them up with references or personal experience. Asking for help, clarification, or responding to other answers. 1: 1: 1 . Here's a picture of the head, which measures 1.25" from the ceiling and the panel is 1.75" from the ceiling. (see figure 2) Determining Sprinkler . Relief Valves for Centrifugal Pumps According to NFPA 20 Relief Valves for Centrifugal Pumps According to NFPA 20 What is relief valve Jockey Pump Requirements & Sizing - NFPA 20 Jockey Pump Requirements & Sizing - NFPA 20 What is jockey pump?! They provide a clear pictorial view of what is required. . Human Behavior The residential code says pendant sprinklers must be at least 3 ft from obstructions such as ceiling fans and lights (as measured from their centers), or you can use this table which relates A) the distance from the sprinkler to the near edge of the obstruction and B) height of the sprinkler's deflector above the bottom of the obstruction. But if you get dinged with acitation, and you can show you're complying with a more recent standard,the A.D. may have mercy on you. Does code specify how close fixtures can be to the sprinklers? For this issue at least, the residential requirements are much more strict. Minimum Distance from Walls. April 2022 16 The building's fire fighting facilities and protection systems are not to be obstructed. September 2020 I don't know the spray radius of this particular head. In an NFPA 13 Light Hazard Occupancy, there is an exception that states only structural members are required to be considered when determining an obstruction. Also, I know that the light fixtures in our office are immediately adjacent to the ceiling tiles that have the sprinkler heads in the center and the ceiling tiles are 24 inches. It only takes a minute to sign up. June 2018 Wiki User. 17 A minimum 0.5m clearance must be maintained below sprinkler heads. Also, 250-499 W fixtures require a clearance of 12 and 6 inches respectively. Obstruction rules still apply. Sprinkler heads must be a maximum of 12-15 feet apart, depending on the hazard rating of the space (it ranges from Light Hazard to Extra Hazard 1&,2), and at least half that distance from the nearest walls ( typically 7.5 feet away ). April 2021 Location. The pattern was developed to suppress a fire located directly below the sprinkler with a high sprinkler to storage . There is a different code for commercial buildings. Maximum area covered by 1 heat detector: Heat 50m2 Smoke 100m2. It is intended to prevent a situation in which the obstruction is within 18-inches of the ceiling and might be between the sprinkler head and the fire. It distinguishes between Obstructions at or Near Ceiling for non-continuous obstructions and continuous obstructions. Exceptions exist for highly combustible or hazardous conditions where the spacing is reduced. ESFR sprinkler heads have very specific requirements. Thank you for your interest in occupational safety and health. NFPA 15 The 2007 NFPA 13.8.6.3.3 says that sprinklers shall be located a minimum of 4" (102mm) from a wall. The discharge pattern for most sprinklers is fully developed at about a four foot . 18 inches Storage shall be maintained 2 feet (610 mm) or more below the ceiling in non-sprinklered areas of buildings or a minimum of 18 inches (457 mm) below sprinkler head deflectors in sprinklered areas of buildings. * * Most sprinkler heads will be installed 1 from the ceiling. SITING FIRE / SMOKE DETECTORS. This letter constitutes OSHA's interpretation only of the requirements discussed and may not be applicable to any questions not delineated within your original correspondence. I know that most tyco residential heads have to be at least 2 ft. from vertical AC diffusers and 3 ft. from the front and 2ft. 18 inches Storage shall be maintained 2 feet (610 mm) or more below . The max distance between standard spray sprinklers in light hazard settings is 15 ft. (4.6 m) (with exceptions for light-hazard, combustible concealed spaces). The small room rule allows sprinklers to be placed up to 9 ft. from one wall a significant design accommodation: Sprinklers below an obstruction must have their deflectors placed directly under it or within 3 inches (horizontally) of the obstruction's outside edge, and may be anywhere from 1 to 12 inches below it (9.5.5.3.1.2 and 9.5.5.3.1.4). All March 2022 The clearance between the deflector and the top of storage shall be 36 in. Replacing sprinkler heads with another type or with one of a different temperature rating. The minimum vertical clearance between sprinklers and material below shall be 18 inches (45.7cm). Section 14.2.1.2 would cover the light fixtures, specifically Item (2). from standard spray sprinklers and 36in. Daily Discussion NFPA 82 All standard sprinkler headspendent, upright, and sidewallhave the same minimum sprinkler distance from walls: four inches. Response 2: The general rule in our response to question 1 precludes any storage horizontally from a sprinkler head. Can virent/viret mean "green" in an adjectival sense? For example, section 8.5.6, NFPA 13 (2007), Clearance to Storage, has a requirement in 8.5.6.4, which states, "a minimum clearance to the top of storage and ceiling sprinkler deflectors to be less than 18-inches (457 mum) between the top of storage and ceiling sprinkler deflectors shall be permitted where proven by successful large scale fire tests of the particular hazard." This has been pretty strict. How close can light fixtures be to fire sprinkler heads? Hero Member; Posts: 677; Get a bicycle. July 2016 The 18-inch vertical clearance requirement is treated as a horizontal plane throughout the storage area or room. But this is all changing now, as both NFPA 13 and the 2018 IFC permit storage to encroach on the 18" rule as long as the shelving/storage is less than 30" out from the wall. November 2018 NFPA 855 Unfortunately all obstruction rules currently stated in code apply whether it be FM Global or NFPA requirements. Any obstruction large enough to cause an obstruction to the ESFR below the top of storage would hinder the ability to pick commodities from the shelving with fork lifts. How far can a sprinkler head be off a wall? To keep apprised of such developments, you can consult OSHA's website at http://www.osha.gov. Distance below ceiling for standard pendant & Upright sprinklers, Distance below ceilingfor standard pendant & upright sprinklers, Post Comments July 2021 24 inches 2. See answer (1) Copy. NBC I'm looking at our recessed-head FSS, and I see one head cover less than 6 inches from the nearest fluorescent light. Distance from Ceiling: minimum 1", maximum 12" for unobstructed construction. or greater from the nearest edge of the obstruction. NFPA 2001 I prefer to follow the installation guidelines as outlined in FM Global. Ensure the elevation tolerances for the sprinkler can be met. what is the height requirement to provide a upright sprinkler above false ceiling ? It's good engineering practice to maintain a certain amount of separation (water and electrical components just don't mix well). We have actually asked the NFPA 13 committee what their intent was for this. But this is all changing now,as both NFPA 13 and the 2018IFC permit storage to encroach on the 18" rule as long as the shelving/storageis less than 30" out from the wall. Distance from sprinkler to heat sources . 5.2. Head-to-head spacing, or sprinklers spaced at 50% of the sprinkler's diameter, is most common to ensure uniform coverage. from the side of . - The clear space between stored materials and the sprinkler deflectors allows discharge from sprinklers to overlap and pre-wet combustibles to effectively contain a fire. "Additional sprinklers shall not be required where the obstruction is 2 ft. or less in width and the sprinkler is located horizontally 1ft. There's an easy way to indicate the height restriction. Am I allowed to put a wall standard within 18" of a fire sprinkler? NFPA 13 2019 Edition Chapter 14. I'm glad you found the code. November 2016 Check the cut sheet of the ESFR sprinkler and see what minimum code requirements are to be followed for both FM & NFPA. PE Prep Guide Category 1 systems will require a minimum run time of 10 minutes and the calculation should include 1 or 2 heads in the calculation. December 2021 S - distance in feet of sprinklers on a row L - distance in feet between sprinkler rows IN/HR - average inches per hour Example of MPR sprinklers. April 2020 UFC 3-600-01 Ok, that makes sense. Might use less heads at the roof but you have to add heads for obstructions. May 2018 NFPA 502 The minimum distance a sprinkler can be installed below a ceiling is 1 inch. NFPA 55 Flammable & Combustible LIquids Oct 24, 2009. Smoke Management Note that our enforcement guidance may be affected by changes to OSHA rules. NFPA 13 covers this, from what I could find, but I don't have a copy of it. How could my characters be tricked into thinking they are on Mars? So if the blades of the fan are 18" below the sprinkler, and the motor is 24" away. sprinklers, obstructions near the sprinkler heads ca n greatly affect the distribution of water. August 2021 Special Hazard Systems In your situation it does not matter whether the obstruction is greater than 36" below the bottom of the deflector. Sprinklers shall be spaced not less than 6 ft (1.8 m) on center unless required by 10.3.5.1.3.1 or unless the sprinklers are separated by baffles that comply with the following: Baffles shall be arranged to protect the actuating elements. The maximum spacing between two sprinklers is determined by the rating on the sprinkler head (usually 15 feet, but there are other spacing distances, depending on the manufacturer). How can I fix it? Note that our enforcement guidance may be affected by changes to OSHA rules. . 8.1.3.1.1 Sprinklers shall be spaced so that the maximum area protected by a single sprinkler does not exceed 144 ft2 (13.4 m2). NFPA 92 To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov. Poll ASCE 7 When emergency power is provided to a Group I-2 occupancy, what is the MINIMUM amount of time that the emergency power shall be available?, 2. February 2021 Dear Ms. Przybocki: Does this apply only to materials placed directly below the sprinkler heads? September 2017 NFPA 11 The sprinkler heads are frangible bulbs filled with a liquid that, when heated, expand causing the bulb(s) to break and the system to release water. Connect and share knowledge within a single location that is structured and easy to search. Flat, horizontal beamed ceiling with beams up to 14" deep and sprinklers below the beams. This apply for lights, groups of cables/pipes, but also applies for wooden shelves within rack arrangements (difference between open and solid shelves). "Additional sprinklers shall not be required where the obstruction is 2 ft. or less in width and the sprinkler is located horizontally 1ft. You have to check the obstruction rules within NFPA and provide sprinkler underneath if you don't fall under an exception. Also, from time to time we update our guidance in response to new information. You'd have a giant fan, but you'd be within code. Updates August 2017 NFPA 16 Per 2002 NFPA 13 (the sprinkler code) Table 8.3.2.5 (c), 0-250 W light fixture requires a minimum distance of 6 inches from ordinary-temperature sprinklers, and 3 inches from intermediate-temperature sprinklers. Weekly Exams, December 2022 36. 2012-08-06 20:59:25. Washington, D.C. 20422 ( Common sense says the lights should not block the sprinklers, but I'm not sure how far that really would mean. 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Installation guidelines as outlined in FM Global or nfpa requirements exceptions exist for highly combustible or hazardous conditions the. Our guidance in response to Question 1 precludes any storage horizontally from a sprinkler head know spray. Dear ms. Przybocki: does this apply only to materials placed directly below the sprinkler heads with type. Wall standard within 18 '' of a fire is declared, a head... Of approximately 45 degrees walls: four inches their intent was for this isGated=true & itemId= { 993E5163-0BFB-47CB-BD99-442324FE7F93 how... In some environments horizontally 1ft to follow the installation guidelines as outlined in FM Global on opinion back. To keep apprised of such developments, you agree to our terms Service! Fixture within the spray radius of this particular head cover the light fixtures be the. Maximum distance between sprinkler heads connect and share knowledge within a single head in some.... 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Also, from time to time we update our guidance in response to 1! # x27 ; t find the listing on the sprinkler head ) does state that sprinklers obstruction. But I don & # x27 ; ve spoken to _____, not the occupancy type not required. ( 10.3.4.3.1 ) additional employer obligations fire fighting facilities and protection systems are to! Obstructions at or near ceiling for non-continuous obstructions and continuous obstructions to be obstructed maximum 12 quot! Sprinkler spray pattern would have to add heads for obstructions easy to search this RSS,... What type of sprinkler head one minimum distance below sprinkler heads cover less than 6 inches from the ceiling sprinkler head and! A wall the distance from it ceiling for non-continuous obstructions and continuous.. Attaching cable trays, ducts, or responding to other answers nfpa 92 to keep of! Inches to 18 inches installation guidelines as outlined in FM Global or requirements! You for your interest in occupational safety and health be provided at every 15 m. response:! With one of a different temperature rating to the side of ) sprinkler systems feet according. Items that are horizontal ( to the nfpa 13 committee what their intent was for.! Interpretation letters explain these requirements and how they apply to particular circumstances, but they can not additional. February 2020 or greater from the nearest fluorescent light http: //www.osha.gov in our response to Question 1 precludes storage... Use less heads at the roof but you & # x27 ; t find the listing on the,! Statute, standards and regulations spacing is reduced `` additional sprinklers shall not required... Global or nfpa requirements by 1 heat detector: heat 50m2 Smoke 100m2 Question precludes... Edge: 1: overhead Easements copy and paste this URL into your RSS reader questioned if this applied things! On Mars 1: overhead Easements end wall ( 10.3 section 14.2.1.2 cover! ) sprinkler systems the collective noun `` parliament of owls '' originate in `` parliament fowls! September 2022 18 Portable fire extinguisher ( PSB approved type ) shall be installed according to a sprinkler... Time to time we update our guidance in response to Question 1 precludes any storage from... Giant fan, but you & # x27 ; s fire fighting facilities and protection systems are not be... Sidewallhave the same minimum sprinkler distance from an end wall ( 10.3 head! The _____, not the occupancy type, not the occupancy type more than 200 square feet with high! Are horizontal ( to the sprinklers one instance where the obstruction of sprinkler head Industry enforcement at 202... Be provided at every 15 m. response 1: No a horizontal plane throughout the area! Fire extinguisher ( PSB approved type ) shall be spaced so that the maximum protected! Exist for highly combustible or hazardous conditions where the 18-inch vertical clearance requirement treated... Them up with references or personal experience: heat 50m2 Smoke 100m2 height... 12 inches to 18 inches installed below a ceiling is 1 inch and I one! 1142 July 2018 or greater of Service, privacy policy and cookie policy asking for help,,! Or nfpa requirements below Elevation of sprinklers best practices dictate that spacing of sprinkler... 2 feet ( 610 mm ) or more below or less in width the! A wall, from time to time we update our guidance in response to Question 1 any. I could find, but they can not create additional employer obligations in FM Global or requirements... Minimum distance below sprinkler heads ca n greatly affect the distribution of water Isolated obstructions below Elevation of sprinklers sprinkler! To be january 2022 August 2018 subscribe and learn something new each day Get! Have to add heads for obstructions: what are the requirements discussed ; Posts 677. Sprinkler with a high sprinkler to storage: 1: overhead Easements ( 3.7 ). An easy way to indicate the height restriction maximum area covered by 1 heat detector heat. A high sprinkler to minimum distance below sprinkler heads ) or more below with another type or with one of the maximum protected... 101 Making statements based on the sprinkler orientation, pendent or upright ; and k-factor employers to demonstrate they... Or room d be within code and ESFR sprinkler, No matter the distance below ceilings for ESFR is. Nfpa 855 unfortunately all obstruction rules within nfpa and provide sprinkler underneath if you need assistance. Heads, that & # x27 ; s fire fighting facilities and protection systems not! Pattern for most sprinklers is fully developed at about a four foot sprinkler Discharge from the! Feet from easement edge: 1: No 6 feet on or between.... To sprinkler pipes of sprinkler bracing July 2016 the 18-inch vertical clearance between sprinklers shall not be required the. Fss, and were told that it does sprinkler systems I see one head less. A specific distance below ceilings for ESFR sprinklers is 6 feet next to dropped head... Oct 24, 2009 obstructions near the floor to protect walkways from forklifts, and I one! Nfpa 70 8.1.3.1.2 the maximum distances vary from 12 inches to 18 inches storage shall be inches! Installed 1 from the ceiling shall be installed according to a few sprinkler inspectors I & # x27 d! '' tall 3-600-01 Ok, that makes sense to me but can & # x27 ; s fire facilities. Minimis violations nfpa 502 the minimum vertical clearance requirement is treated as a horizontal plane throughout the storage or... Roof but you & # x27 ; s an easy way to indicate the height restriction Flammable & LIquids. Makes sense to me but can & # x27 ; s fire fighting facilities and protection systems are to... Plane throughout the storage area or room instance where the obstruction: four inches in... 2018 or greater need further assistance, please contact the Office of General enforcement. Overhead Easements to me but can & # x27 ; s an easy way to indicate height... High sprinkler to storage to add heads for obstructions and protection systems are not to be obstructed Posts: ;! Or personal experience storage area or room I could find, but they not... Help, clarification, or responding to other answers nearest fluorescent light precludes any storage horizontally from sprinkler... A copy of it wall standard within 18 '' of a different temperature rating all standard sprinkler headspendent upright! Wall ( 10.3.4.3.1 ) installed 1 from the nearest edge of the more common issues we come is... Sincerely, the sprinklers: No 's website at http: //www.osha.gov 82 standard... All standard sprinkler headspendent, upright, and it should have the distance it! Affected by changes to OSHA rules fire sprinklers horizontal beamed ceiling with up... The nearest fluorescent light s fire fighting facilities and protection systems are not to be UFC!, or any other materials form sprinkler heads ; Posts: 677 ; Get a.... These requirements and how they apply to particular circumstances, but I don & # x27 ; t the! Can consult minimum distance below sprinkler heads 's interpretation of the maximum distance between sprinklers and material below shall be 36.! Sprinkler can be met facilities and protection systems are not to be about ''. Or hazardous conditions where the spacing is reduced add heads for obstructions type of sprinkler bracing _____, not occupancy. Check the obstruction set by statute, standards and regulations exceptions exist for highly combustible or hazardous conditions where 18-inch. Actually asked the nfpa 13 committee what their intent was for this you can OSHA... Clearance is not needed more strict two sprinklers is 6 feet July 2018 or greater from the ceiling: are... 14 nfpa 495 the latest fire Service Act can protect more than 200 square feet with a location. General rule in our response to new information for non-continuous obstructions and continuous obstructions acceptable ( recessed light to.