Sprinklers
Fire Marshal
Automatic fire sprinkler systems are reviewed for the proper design and installation for all types of properties as required by the various adopted fire codes.
| No. | Fire Code Compliance Item |
|---|---|
| P-000 | Applicable Codes: This code reference shall be placed on the cover sheet of your drawings. These plans were reviewed using NFPA 13; 2019 ED._____; NFPA 13D; 2019 Ed._____; NFPA 13R; 2019 Ed; _____: Check the Standard you are using. |
| P-002 | Calculations shall be based on the lowest pressure available from a 24 hour recording, and prove a 5 psi safety margin. Spikes in the pressure recording with less than a 30 minute duration shall not be considered the lowest pressure. Recordings shall be during an ordinary work day and made not more than six months prior to plan submittal. Legible test results and a copy of the test shall be submitted with plans. |
| P-004 | Adequate Water Supply shall be determined after an analysis of water available from the source and hydraulic demands are calculated. |
| P-006 | Antifreeze solutions may be used for maintaining automatic sprinkler protection in small unheated areas. Antifreeze solutions are recommended only for systems not exceeding 40 gallons. NFPA 13; 2019 Ed. |
| P-008 | The water supply for sprinklers only shall be determined from area/density curves. NFPA 13; 2019 Ed. |
| P-010 | The piping between the check valve and the outside hose coupling shall be equipped with an approved automatic drip. |
| P-012 | Baffles shall be installed whenever sprinklers are less than 6 feet apart to prevent operating sprinklers from wetting adjacent sprinklers. See exceptions NFPA 13. 2019 Ed. |
| P-014 | Linen, rubbish, etc. shall be protected internally by automatic sprinklers. A sprinkler shall be provided above the top service opening of the chute, above the lowest service opening, and above service openings at alternate levels in buildings over 2 stories in height. The Room or area into which the chute discharges shall be protected by automatic sprinklers. Sprinklers at floor levels should be arranged so as to be protected from mechanical injury, from falling objects and not cause obstruction within the chute. |
| P-016 | A listed check valve shall be installed in each fire department connection. |
| P-018 | Fittings for visual internal inspection of piping in cold storage rooms shall be provided. A low pressure alarm to a constantly attended location shall be installed on sprinkler systems supplying freezer sections. Piping in cold storage shall be installed with pitch. NFPA 13; 2019 Ed. |
| P-020 | General notes and legend, piping spec’s (underground and aboveground), riser detail, system design type, system demand area(s), occupancy classification, system site plan including underground piping, hangers and spacing, sprinkler heads and pit details shall be submitted on plans. |
| P-022 | All Concealed spaces enclosed wholly or partly by exposed combustible construction shall be protected by sprinklers. |
| P-024 | Material and test certificates, one for aboveground installations and one for underground installations. These certificates are acknowledgments that materials used and tests performed are in accordance with the requirements of this standard. Provide a fully completed copy of these materials and test certificates to the Field Inspector. NFPA 13; 2019 Ed. |
| P-026 | In cooking areas protected by automatic sprinklers, additional sprinklers or automatic spray nozzles shall be provided to protect commercial-type cooking equipment and ventilation systems that are designed to carry away grease-laden vapors unless other wise protected. NFPA 13; 2019 Ed. |
| P-028 | Screwed unions shall not be used on pipe larger than 2″. Couplings and unions of other then screwed-types listed specifically for use in sprinkler systems. NFPA 13; 2019 Ed. |
| P-030 | All materials and devices essential to successful system operation shall be listed. Sprinklers must be installed in accordance with their design and performance characteristics. Maximum coverage dimensions, temperature ratings, and minimum pressure/flow requirements must be provided with manufacturer’s specifications. All sprinklers shall be UL listed and referenced in UL Fire Protection Equipment Directory, most current edition. |
| P-032 | Under unobstructed construction, the distance between the sprinkler deflector and the ceiling shall be a minimum of 1″ and a maximum of 12″. Under obstructed construction, the sprinkler deflector shall be located 1-6″ below the structural members and a maximum distance of 22″ below the ceiling/roof deck. NFPA 13; 2013 Ed. |
| P-034 | The distance from sprinklers to walls shall not exceed one-half of the allowable distance between sprinklers. In small rooms, sprinklers shall be permitted to be located not more than 9′ from any single wall. |
| P-036 | Where there are two sets of joists under a roof or ceiling, and there is no flooring over the lower set, sprinklers shall be installed above and below the lower set of joists where there is a clearance of 6″ or more between the top of the lower joist and the bottom of the upper joist. Sprinklers are permitted to be omitted from below the lower set of joists where at least 18″ is maintained between the sprinkler deflector and the top of the lower joist. NFPA 13; 2019 Ed. |
| P-038 | Drop-out ceilings shall be permitted to be installed beneath sprinklers when ceilings are listed for that service and are installed in accordance with their listings. Special sprinklers shall not be installed above drop-out ceilings unless specifically listed for this purpose. Sprinklers shall not be installed beneath drop-out ceilings. NFPA 13; 2019 Ed. |
| P-040 | Sprinklers are not required in bathrooms that are located in dwelling units that do not exceed 55 square feet and that have walls and ceilings of noncombustible or limited combustible materials. (Sprinklers are required in bathrooms of nursing homes and in bathrooms opening directly into public corridors or exit ways). Sprinklers are not required in clothes closets, linen closets, and pantries within dwelling units in hotels and motels where the area of the space does not exceed 24 feet, the least dimension does not exceed 3 feet and the walls and ceilings are surfaced with noncombustible or limited combustible materials. NFPA 13.; 2019 Ed. |
| P-042 | Provide sprinkler protection in electrical rooms and / or elevator equipment rooms in accordance with NFPA 13; 2019 Ed. |
| P-044 | Escutcheon Plates used with a recessed or flush type sprinkler shall be part of a listed sprinklers assembly. NFPA 13; 2019 Ed. |
| P-046 | Sprinklers shall be installed under roofs or canopies over areas where combustibles are stored or handled. Sprinklers shall be installed under exterior roofs or canopies exceeding 4 feet in width. |
| P-048 | (FYI) **ALL COMMENTS** Shall be addressed on plans, NO PERMITS will be issued if any comments are outstanding. Contact the City of Johns Creek Fire Marshal’s Office at 678-512-3363 for additional assistance. |
| P-050 | A single automatically controlled fire pump installed in accordance with NFPA 20 shall be an acceptable water supply source, provide specifications and cut sheets for fire pump, fire pump controller, jockey pump, and jockey pump controller. |
| P-052 | Piping and fittings used in sprinkler systems shall meet or exceed the standards in NFPA 13; 2013 Ed.. Provide specifications for piping and fittings on submitted plans. |
| P-054 | Verify floor plans for sprinkler pipe layout for consistency with approved building plans. Contractor and certification number, layout designers name, pipe sizes, hangers and dimensions shall be submitted on plans. |
| P-056 | Underground mains and lead in connections to system risers shall be completely flushed before connection is made to sprinkler piping. The flushing operation shall be continued for sufficient time to ensure thorough cleaning. NFPA 13; 2019 Ed. |
| P-058 | See NFPA 81, Standard on Fur Storage, fumigation and cleaning. Sprinklers shall be listed old-style having orifice sizes selected to provide as closely as possible but not less that 20 gpm’s per sprinkler, for four sprinklers, based on the water pressure available. NFPA 13; 2013 Ed. |
| P-060 | Pipe joined with grooved fitting shall be joined by a listed combination of fittings, gaskets, and grooves. Grooves cut or rolled on pipe shall be dimensionally compatible with the fittings. NFPA 13; 2019. |
| P-062 | Sprinklers subject to mechanical injury shall be protected with listed guards. NFPA 13; 2019 Ed. |
| P-064 | Types of hangers shall be in accordance with the requirements of NFPA 13. Sprinkler piping shall be substantially supported from the building structure, which must support the added load of the water-filled pipe plus a minimum of 250 lbs. applied at the point of hanging. |
| P-066 | Hose connections shall be of an approved type, as specified in NFPA 1963, Standard for Screw Threads and Gaskets for Fire Hose Connections. All FDC’s shall have a minimum of 2 outlets. Exception: Residential systems. |
| P-068 | The minimum water supply requirements for a hydraulically designed sprinkler system shall be determined by adding the hose stream demand. |
| P-070 | Submit hydraulic calculations with appropriate design data proving adequate water supply. |
| P-072 | All interior piping and attached appurtenances subjected to system working pressure shall be hydrostatically tested at 200 psi and shall maintain that pressure without loss for 2 hours. Provide a witnessed and properly completed hydrostatic test result to the Field Inspector. (Air test may be conducted when cold weather will not permit testing with water). NFPA 13. |
| P-074 | It is assumed that any media area or library area composed of tables, chairs, or magazine racks and individual bookshelves not exceeding 5ft. in height shall be subject to light hazard classification. Those areas of any media center or library used primarily for book storage on shelves over 5ft. in height are considered stack areas and the rules of ordinary hazard Group II shall apply. Sprinklers shall be installed in every aisle and at every tier of stacks with distance between sprinklers along aisles not to exceed 12 feet, and that each head provide a minimum 130 sq. ft. area coverage. NFPA 13; 2019 Ed. |
| P-076 | The fire department connection shall be shown on the plans. Commercial or industrial buildings shall have a 3-way type fire hydrant placed within 50 feet of the fire department connection. Residential multi-family occupancies shall have a 3-way fire hydrant placed within 50 feet of fire department connection. |
| P-078 | The maximum protection area per sprinkler shall comply with NFPA 13; 2019 Ed. |
| P-080 | There shall be no shut off valve in the fire department connection piping. |
| P-082 | Post Indicator Valves (PIV) in the underground piping shall be omitted unless specifically permitted by the City of Johns Creek Fire Marshal’s Office. |
| P-084 | Water is not removed or used from the system, but only circulated through the piping system. NFPA 13. |
| P-086 | Sprinklers shall be installed under ducts, decks, and other obstruction over 4′ wide. NFPA 13; 2019 Ed. |
| P-088 | Non-continuous obstructions at the ceiling or roof such as columns, bar joist, truss webs, and light fixtures shall be treated as vertical obstructions. Other continuous obstructions located at the ceiling on the plane of the sprinklers are horizontal obstructions. NFPA 13; 2019 Ed. |
| P-090 | The minimum separation of a sprinkler from a horizontal obstruction shall be determined by the height of the deflector above the bottom of the obstruction. NFPA 13; 2019 Ed. |
| P-092 | The minimum separation between vertical obstructions and a sprinkler shall be in accordance with NFPA 13; 2019 Ed. |
| P-094 | Occupancy or portions of occupancies shall be classified according to the quantity and combustibility of contents, the expected rates of heat release, the potential for energy release, the heights of stockpiles, and the presence of flammable and combustible liquids, using the definitions contained in NFPA 13: Light Hazard Ordinary Hazard (Groups 1 and 2) Extra Hazard (Groups 1 and 2) Special Occupancy Hazard. |
| P-096 | Open-grid ceilings shall be installed beneath sprinklers. NFPA 13; 2019 Ed. |
| P-098 | Outside sprinklers shall be supplied from a standard water supply as outlined in NFPA 13. Each outside sprinkler system shall have an independent control valve and separate drain valve. Sprinklers may be of the open or automatic type, automatic sprinklers in areas subject to freezing shall be on dry pipe systems or antifreeze systems. Pipes and fittings installed on the exterior of the building shall be corrosion resistant. NFPA 13; 2019 Ed. |
| P-100 | The pipe schedule method shall be permitted only for new installations of 5,000 sq. ft. or less or for additions or modifications to existing pipe schedule systems. Water supplies shall conform to NFPA 13; 2019. |
| P-102 | Sprinkler piping shall be supported independently of the ceiling sheeting. There shall not be less than one hanger for each section of pipe, except when sprinklers are spaced less than 6′ apart then hangers can be spaced up to a maximum of 12′. The distance between a hanger and the centerline of an upright sprinkler shall not be less than 3″. NFPA 13; 2019 Ed. |
| P-104 | Pipe or tube used in sprinkler systems shall meet or exceed one of the standards in NFPA 13; 2019 Ed. |
| P-106 | A pressure gauge shall be installed at the system main drain, at each main drain associated with a floor control valve and on the inlet and outlet side of each pressure reducing valve or alarm check valve. Each gauge connection shall be equipped with a shutoff valve and provisions for draining. |
| P-018 | In portions of systems where all components are not listed for pressure greater than 175 psi and the potential for normal water pressure in excess of 175 psi, a listed pressure reducing valve shall be installed and set for a discharge pressure not exceeding 165 psi. A detail must be shown on plans. NFPA 13; 2019 Ed. |
| P-110 | The maximum floor area on any one floor to be protected by sprinklers supplied by any one sprinkler system riser or combined system riser shall be as follows: Light Hazard 52,000 Sq. Ft. Ordinary Hazard 52,000 Sq. Ft. Extra Hazard Pipe Schedule 25,000 Sq. Ft. Hydraulically Calculated 40,000 Sq. Ft. Storage – High-pile storage and storage covered by other NFPA standard 40,000 Sq. Ft. The system risers should be labeled with reference to the protection area that they serve. |
| P-112 | All sprinkler systems shall be arranged for flushing. Readily removable fittings shall be provided at the end of all cross mains. All cross mains shall terminate in 1 1/4″ or larger pipe. All branch lines on gridded systems shall be arranged to facilitate flushing. NFPA 13; 2019 Ed. |
| P-114 | A rack storage permit shall be obtained from City of Johns Creek Fire Marshal’s Office. |
| P-116 | A one-piece reducing fitting shall be used wherever a change is made in the size of the pipe. NFPA 13; 2019 Ed. |
| P-285 | The water supply requirement for sprinklers only shall be based upon the room that creates the greatest demand. To utilize this method, all rooms shall be enclosed with walls having a fire-resistance rating equal to the water supply duration indicated in NFPA 13; 2019 Ed. |
| P-118 | Seismic requirements & Sway Bracing required per NFPA 13; 2019 Ed. |
| P-120 | Provide a permanently mounted, unobstructed sign at the FDC location, visible 24 hrs. per day by responding Fire Emergency personnel. The sign shall have a red background and white lettering . The letters “FDC” shall be a minimum of 6″ in height with a 3/4″ wide letter stroke. Hose connections shall be designated by a sign having raised letters at least 1″ in size cast on a plate or fitting, reading for service designated: i.e. “Auto sprinkler” or “Open Sprinkler” or “Standpipe”, etc. |
| P-122 | Sprinklers shall be installed in spaces under all ground floors, exterior docks, and platforms. |
| P-124 | Under curved surfaces, the horizontal distance measured at the floor level from the wall to the nearest sprinkler shall not be greater than one-half the allowable distance between sprinklers. NFPA 13; 2019 Ed. |
| P-126 | The distance between sprinklers either on the branch line or between the branch lines, running up or down the slope of a pitched surface shall be measured along the slope. NFPA 13; 2019 Ed. |
| P-128 | Sprinklers with special coatings or platings are specifically listed for use in atmospheres that would corrode an uncoated sprinkler. NFPA 13; 2013 Ed. |
| P-130 | The ‘K-factor’, relative discharge, and identification for sprinklers having different orifice sizes shall be in accordance with NFPA 13; 2019 Ed. |
| P-132 | The maximum distance between sprinklers, whether on branch lines or between branch lines shall meet the requirements of NFPA 13; 2019 Ed. |
| P-134 | Sprinklers shall be installed under the roof at the ceiling, in spaces under the stage either containing combustible materials, and in all adjacent spaces and dressing rooms, storerooms, and workshops. When proscenium opening protection is required, a deluge system shall be provided with open sprinklers located not more than 3 feet away from the stage side of the proscenium arch and spaced up to a maximum of 6 feet on center. NFPA 13; 2019 Ed. |
| P-136 | Stairs, towers, or other construction with incomplete floors, if piped in independent risers, shall be treated as one area with reference to pipe sizes. NFPA 13; 2019 Ed. |
| P-138 | Sprinklers shall be installed beneath all stairway of combustible construction. In noncombustible construction stair shafts with noncombustible stairs, sprinklers shall be installed at the top of the shaft and under the first landing above the bottom of the shaft. Where moving stairways, staircases, or similar floor openings are involved they shall be protected by closely spaced sprinklers in combination with draft stops. (The draft stops shall be located immediately adjacent to the opening, shall be at least 18 inches deep, and shall be of noncombustible or limited combustible material). Sprinklers shall be spaced not more than 6 feet apart and placed 6-12 inches from the draft stop in the side away from the opening. When sprinklers are closer than 6 feet cross baffles shall be provided in accordance with NFPA 13; 2019 Ed. |
| P-140 | Penstock or flumes, rivers or lakes: water supplies shall be arranged to avoid mud or sediment and shall be provided with approved strainers installed in an approved manner. NFPA 24; 2019 Ed. |
| P-142 | A supply of spare appropriately rated sprinklers (never less than 6), of each type used, shall be maintained on the premises so that any sprinklers that have operated or been damaged can be replaced. A sprinkler wrench shall also be provided and kept in the cabinet to be used in the removal and installation of sprinklers. |
| P-144 | The distance from sprinklers to privacy curtains, free stand partitions, room dividers, and similar obstructions in light hazard occupancies shall be in accordance with NFPA 13. |
| P-146 | Provide drain for system riser sized according to NFPA 13. |
| P-148 | When gravity, pressure, or suction tanks are to be used, the authority having jurisdiction shall be consulted. NFPA 24. |
| P-150 | Temperatures of automatic sprinklers shall be shown on plans. |
| P-152 | All threaded pipe and fittings shall have threads cut to ANSI/ASME B1.20.1 steel pipe with wall thicknesses less than schedule 30 (in sizes 8″ and larger), or schedule 40 (in sizes less than 8″) and shall not be joined by threaded fittings. NFPA 13. |
| P-154 | Sprinklers shall be installed in accordance with their listing. Temperature ratings of sprinklers based on distance from heat sources. NFPA 13; 2019 Ed. |
| P-156 | All valves controlling connections to water supplies and to supply pipes to sprinklers shall be listed indicating valves with supervision. Such valves shall not close in less than 5 seconds when operated at maximum possible speed from the fully open position. |
| P-158 | One sprinkler shall be installed at top of shafts (concealed shafts of noncombustible construction and contents in a suitably rated enclosure do not require sprinklers). Where vertical shafts have combustible surfaces, one sprinkler shall be installed at each alternate floor level. Where accessible vertical shafts have noncombustible surfaces, one sprinkler shall be installed near the bottom. Where vertical openings are not protected by fire rated enclosures, sprinklers shall be placed so as to fully protect the openings. |
| P-160 | Provide a water flow switch on the system riser with an approved water flow alarm. |
| P-162 | All valves controlling the water supply for automatic sprinkler systems and water-flow switches on all sprinkler systems shall be electrically supervised. |
| P-164 | Water flow test connections shall be provided at locations that will permit a flow test of water supplies and connections. They shall be so installed that the valve may be open wide for a sufficient time to assure a proper test without causing water damage. |
| P-166 | Welding methods that comply with all of the requirements of AWS D10.9 specification for Qualification of Welding Procedures and Welders for Piping and Tubing, are acceptable means of joining fire protection piping. NFPA 13; 2019 Ed. |
| P-168 | 4.4 Modifications of existing sprinkler systems: In Existing sprinkler systems, heads may be relocated from original installation locations. All alterations/modifications to existing branch lines shall be submitted with hydraulic calculations if work is outside of scope of subsections 4.4.1 through 4.4.4 of Chapter 4 of the State modifications. New hydraulic data nameplate shall be placed on any modified system at the riser or sectional valve along with the existing hydraulic plate. |
| P-170 | 4.4.1 One additional sprinkler may be added to an original installation location if the additional sprinkler is in a remotely located/non-communicating compartment from existing /relocated sprinkler. |
| P-172 | 4.4.2 Two sprinklers may be added to existing branch line if additional sprinklers are remotely located/non-communicating compartments from existing relocated sprinkler. |
| P-174 | 4.4.3 New branch lines added to existing cross mains shall be sized the same as the existing branch lines. |
| P-176 | 4.4.4 No more than two heads shall be supplied from 1 inch pipe unless the existing system was calculated to supply more than two heads. In such case, the calculated maximum for 1 inch pipe shall take precedence. |