|Portable fire extinguishers||NFPA 10|
|Carbon dioxide fire-extinguishing system||NFPA 12|
|Halon 1301 fire-extinguishing systems||NFPA 12A|
|Dry-chemical extinguishing systems||NFPA 17|
|Wet-chemical extinguishing systems||NFPA 17A|
|Water-based fire protection systems||NFPA 25|
|Fire alarm systems||NFPA 72|
|Mechanical smoke exhaust systems||NFPA 204|
|Smoke and heat vents||NFPA 204|
|Water-mist systems||NFPA 750|
|Clean-agent extinguishing systems||NFPA 2001|
Where utilized, fire watches shall be provided with at least one approved means for notification of the fire department and their only duty shall be to perform constant patrols of the protected premises and keep watch for fires.
- The extent and expected duration of the impairment have been determined.
- The areas or buildings involved have been inspected and the increased risks determined.
- Recommendations have been submitted to management or building owner/manager.
- The fire department has been notified.
- The insurance carrier, the alarm company, building owner/manager, and other authorities having jurisdiction have been notified.
- The supervisors in the areas to be affected have been notified.
- A tag impairment system has been implemented.
- Necessary tools and materials have been assembled on the impairment site.
- Necessary inspections and tests have been conducted to verify that affected systems are operational.
- Supervisors have been advised that protection is restored.
- The fire department has been advised that protection is restored.
- The building owner/manager, insurance carrier, alarm company and other involved parties have been advised that protection is restored.
- The impairment tag has been removed.
- Four or more care recipients are incapable of self-preservation, whether rendered incapable by staff or staff has accepted responsibility for care recipients already incapable.
- One or more care recipients that are incapable of self-preservation are located at other than the level of exit discharge serving such a facility.
- A Group F-1 fire area exceeds 12,000 square feet (1115 m2).
- A Group F-1 fire area is located more than three stories above grade plane.
- The combined area of all Group F-1 fire areas on all floors, including any mezzanines, exceeds 24,000 square feet (2230 m2).
- A Group F-1 occupancy used for the manufacture of upholstered furniture or mattresses exceeds 2,500 square feet (232 m2).
|LOCATION||OCCUPANCY HAZARD |
|Fabrication areas||Ordinary Hazard Group 2|
|Service corridors||Ordinary Hazard Group 2|
|Storage rooms without dispensing||Ordinary Hazard Group 2|
|Storage rooms with dispensing||Extra Hazard Group 2|
|Corridors||Ordinary Hazard Group 2|
- An automatic sprinkler system installed in accordance with Section 903.3.1.2 shall be permitted in Group I-1 facilities.
- An automatic sprinkler system installed in accordance with Section 903.3.1.3 shall be allowed in Group I-1 facilities when in compliance with all of the following:
- An automatic sprinkler system is not required where day care facilities are at the level of exit discharge and where every room where care is provided has at least one exterior exit door.
- In buildings where Group I-4 day care is provided on levels other than the level of exit discharge, an automatic sprinkler system in accordance with Section 903.3.1.1 shall be installed on the entire floor where care is provided and all floors between the level of care and the level of exit discharge, all floors below the level of exit discharge, other than areas classified as an open parking garage.
- A Group M fire area exceeds 12,000 square feet (1115 m2).
- A Group M fire area is located more than three stories above grade plane.
- The combined area of all Group M fire areas on all floors, including any mezzanines, exceeds 24,000 square feet (2230 m2).
- A Group M occupancy used for the display and sale of upholstered furniture or mattresses exceeds 5,000 square feet (464 m2).
- All Group R-4 occupancies.
- Group R-1 multiunit resort buildings as defined in Minnesota Statutes, Section 157.15, and licensed by the Minnesota Department of Health shall comply with Chapter 1305, the Minnesota Building Code.
- In other than R-1 multiunit resort buildings, Group R-1 occupancies shall comply with Chapter 1305, the Minnesota Building Code.
- R-2 occupancies shall comply with Chapter 1305, the Minnesota Building Code.
- Townhouses shall comply with Chapter 1309, the Minnesota Residential Code.
|For Item 3 above, R-1 occupancies other than those specified in Item 2 with a combined fire area 4,500 square feet or more shall be provided with a fire sprinkler system per Section 903. For Item 4 above, all R-2 occupancies with a combined fire area 4,500 square feet or more shall be provided with a |
fire sprinkler system per Section 903. For item 5 above, all townhouses shall be provided with a fire sprinkler system.
|It is important to understand the definition in Section 202 of a Dwelling unit when it comes to applying the sprinkler requirements to licensed facilities in the Care Facility Classifications' table in Section 202. Group R-3 "dwelling unit" constructed to the MSBC that are less than 4,500 sf would not require sprinklers per MSBC Section 903.2.8, Exception 2. However, per Section 903.2.8.2, Group R-3 and R-4 licensed occupancies will require a sprinkler system installed per Section 903.3 no matter the size because they are not dwelling units by definition.|
- A Group S-1 fire area exceeds 12,000 square feet (1115 m2).
- A Group S-1 fire area is located more than three stories above grade plane.
- The combined area of all Group S-1 fire areas on all floors, including any mezzanines, exceeds 24,000 square feet (2230 m2).
- A Group S-1 fire area used for the storage of commercial trucks or buses where the fire area exceeds 5,000 square feet (464 m2).
- A Group S-1 occupancy used for the storage of upholstered furniture or mattresses exceeds 2,500 square feet (232 m2).
- Buildings having two or more stories above grade plane, including basements, with a fire area containing a repair garage exceeding 10,000 square feet (929 m2).
- Buildings no more than one story above grade plane, with a fire area containing a repair garage exceeding 12,000 square feet (1115 m2).
- Buildings with repair garages servicing vehicles parked in basements.
- A Group S-1 fire area used for the repair of commercial trucks or buses where the fire area exceeds 5,000 square feet (464 m2).
- Where the fire area of the enclosed parking garage exceeds 12,000 square feet (1115 m2); or
- Where the enclosed parking garage is located beneath other groups.
- Openings below grade that lead directly to ground level by an exterior stairway complying with Section 1009 or an outside ramp complying with Section 1010. Openings shall be located in each 50 linear feet (15 240 mm), or fraction thereof, of exterior wall in the story on at least one side. The required openings shall be distributed such that the lineal distance between adjacent openings does not exceed 50 feet (15 240 mm).
- Openings entirely above the adjoining ground level totaling at least 20 square feet (1.86 m2) in each 50 linear feet (15 240 mm), or fraction thereof, of exterior wall in the story on at least one side. The required openings shall be distributed such that the lineal distance between adjacent openings does not exceed 50 feet (15 240 mm). The height of the bottom of the clear opening shall not exceed 44 inches (1118 mm) measured from the floor.
|914.2.1||Covered and open mall buildings|
|914.3.1||High rise buildings|
|914.7.1||Special amusement buildings|
|914.8.2, 914.8.5||Aircraft hangars|
|914.11.1||Ambulatory care facilities|
|1028.6.2.3||Smoke-protected assembly seating|
|1103.5.1||Pyroxylin plastic storage in existing buildings|
|1103.5.2||Existing Group I-2 occupancies|
|2108.2||Dry cleaning plants|
|2108.3||Dry cleaning machines|
|2309.3.2.6.2||Hydrogen motor fuel-dispensing area canopies|
|2404.2||Spray finishing in Group A, E, I or R|
|2404.4||Spray booths and spray rooms|
|2405.2||Dip-tank rooms in Group A, I or R|
|2405.9.4||Hardening and tempering tanks|
|2703.10.1.1||HPM work station exhaust|
|2703.10.2||HPM gas cabinets and exhausted enclosures|
|2703.10.3||HPM exit access corridor|
|2703.10.4||HPM exhaust ducts|
|2703.10.4.1||HPM noncombustible ducts|
|2703.10.4.2||HPM combustible ducts|
|2807.3||Lumber production conveyor enclosures|
|2808.7||Recycling facility conveyor enclosures|
|3006.1||Class A and B ovens|
|3006.2||Class C and D ovens|
|Table 3206.2||Storage fire protection|
|5004.5||Indoor storage of hazardous materials|
|5005.1.8||Indoor dispensing of hazardous materials|
|5106.3.2||Aerosol display and merchandising areas|
|5204.5||Storage of more than 1,000 cubic feet of loose combustible fibers|
|5306.2.1||Exterior medical gas storage room|
|5306.2.2||Interior medical gas storage room|
|5306.2.3||Medical gas storage cabinet|
|5606.5.2.1||Storage of smokeless propellant|
|5606.5.2.3||Storage of small arms primers|
|5704.3.7.5.1||Flammable and combustible liquid storage rooms|
|5704.3.8.4||Flammable and combustible liquid storage warehouses|
|5705.3.7.3||Flammable and combustible liquid Group H-2 or H-3 areas|
|6004.1.2||Gas cabinets for highly toxic and toxic gas|
|6004.1.3||Exhausted enclosures for highly toxic and toxic gas|
|6004.2.2.6||Gas rooms for highly toxic and toxic gas|
|6004.3.3||Outdoor storage for highly toxic and toxic gas|
|6504.1.1||Pyroxylin plastic storage cabinets|
|6504.1.3||Pyroxylin plastic storage vaults|
|6504.2||Pyroxylin plastic storage and manufacturing|
- Any room where the application of water, or flame and water, constitutes a serious life or fire hazard.
- Any room or space where sprinklers are considered undesirable because of the nature of the contents, when approved by the fire code official.
- Generator and transformer rooms separated from the remainder of the building by walls and floor/ceiling or roof/ceiling assemblies having a fire-resistance rating of not less than 2 hours.
- Rooms or areas that are of noncombustible construction with wholly noncombustible contents.
- Fire service access elevator machine rooms and machinery spaces.
- Machine rooms and machinery spaces associated with occupant evacuation elevators designed in accordance with Section 3008 of the International Building Code.
- The building has an unsprinklered attic; and
- The building has combustible siding.
|See Minnesota Rule 7511.0903 for language in this section. Also found at www.sfm.dps.mn.gov.|
- The vestibule is 225 square feet or less in floor area;
- The vestibule is of noncombustible or limited combustible construction;
- The vestibule has glazing allowing vision into vestibule;
- The vestibule's only purpose is ingress and egress; and
- The vestibule contains no fueled equipment, flammable or combustible liquids, or furniture. Incidental combustible storage in the vestibule is limited to five cubic feet of material.
- Throughout all spaces within a smoke compartment containing care recipient sleeping units in Group I-2 in accordance with the International Building Code.
- Throughout all spaces within a smoke compartment containing treatment rooms in ambulatory care facilities.
- 3. Dwelling units and sleeping units in Group I-1 and R occupancies.
- Light-hazard occupancies as defined in NFPA 13.
- Valves shall not be installed between the domestic water riser control valve and the sprinklers.
Exception: An approved indicating control valve supervised in the open position in accordance with Section 903.4.
- The domestic service shall be capable of supplying the simultaneous domestic demand and the sprinkler demand required to be hydraulically calculated by NFPA 13, NFPA 13D or NFPA 13R.
- 1. Automatic sprinkler systems protecting one- and two-family dwellings.
- Limited area systems serving fewer than 20 sprinklers.
- 3. Automatic sprinkler systems installed in accordance with NFPA 13R where a common supply main is used to supply both domestic water and the automatic sprinkler system, and a separate shutoff valve for the automatic sprinkler system is not provided.
- Jockey pump control valves that are sealed or locked in the open position.
- Control valves to commercial kitchen hoods, paint spray booths or dip tanks that are sealed or locked in the open position.
- Valves controlling the fuel supply to fire pump engines that are sealed or locked in the open position.
- Trim valves to pressure switches in dry, preaction and deluge sprinkler systems that are sealed or locked in the open position.
- For existing sprinkler systems, monitoring is required when the number of sprinklers is 100 or more.
- Underground key or hub valves in roadway boxes provided by the municipality or public utility are not required to be monitored.
- Backflow prevention device test valves located in limited area sprinkler system supply piping shall be locked in the open position. In occupancies required to be equipped with a fire alarm system, the backflow preventer valves shall be electrically supervised by a tamper switch installed in accordance with NFPA 72 and separately annunciated.
- Hazard specification for consistency with design hazard.
- Type, location and spacing of automatic- and manual-initiating devices.
- Size, placement and position of nozzles or discharge orifices.
- Location and identification of audible and visible alarm devices.
- Identification of devices with proper designations.
- Operating instructions.
- For up to four fryers having a maximum cooking medium capacity of 80 pounds (36.3 kg) each: one Class K portable fire extinguisher of a minimum 1.5-gallon (6 L) capacity.
- For every additional group of four fryers having a maximum cooking medium capacity of 80 pounds (36.3 kg) each: one additional Class K portable fire extinguisher of a minimum 1.5-gallon (6 L) capacity shall be provided.
- For individual fryers exceeding 6 square feet (0.55 m2) in surface area: Class K portable fire extinguishers shall be installed in accordance with the extinguisher manufacturer's recommendations.
- Class I standpipes are allowed in buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2.
- Class I manual standpipes are allowed in open parking garages where the highest floor is located not more than 150 feet (45 720 mm) above the lowest level of fire department vehicle access.
- Class I manual dry standpipes are allowed in open parking garages that are subject to freezing temperatures, provided that the hose connections are located as required for Class II standpipes in accordance with Section 905.5.
- Class I standpipes are allowed in basements equipped throughout with an automatic sprinkler system.
- In determining the lowest level of fire department vehicle access, it shall not be required to consider:
- Recessed loading docks for four vehicles or less, and
- Conditions where topography makes access from the fire department vehicle to the building impractical or impossible.
- Within the mall at the entrance to each exit passageway or corridor.
- At each floor-level landing within enclosed stairways opening directly on the mall.
- At exterior public entrances to the mall of a covered mall building.
- At public entrances at the perimeter line of an open mall building.
- At other locations as necessary so that the distance to reach all portions of a tenant space does not exceed 200 feet (60 960 mm) from a hose connection.
- Supply one 11/2-inch (38 mm) fire hose valve at each floor level or intermediate stair landing in each required and enclosed stairway.
- The water for the small hose connections shall be supplied separately from the sprinkler system protecting that area so that the small hose connections are still functional if the water supply to the sprinkler system is shut down following fire extinguishment.
- The piping shall be a minimum of 11/2-inch (38 mm).
- The water shall be supplied from a wet-pipe sprinkler system only.
- The piping shall be comprised of metallic piping and hose valve connections.
|This section clarifies the original intent of these hose connections from the previous code. It provides specific installation instructions. These will be in buildings protected with a sprinkler system and intended for fire department overhaul operations, extinguishing small fires the sprinkler system controlled. The intent is to provide a hose connection in three- and four-story buildings that were not required to have a standpipe system. Standpipes are still required in buildings that meet the requirements in Section 905.3.|
- In every required stairway, a hose connection shall be provided for each floor level above or below grade. Hose connections shall be located at an intermediate floor level landing between floors, unless otherwise approved by the fire code official.
- On each side of the wall adjacent to the exit opening of a horizontal exit.
4. In covered mall buildings, adjacent to each exterior public entrance to the mall and adjacent to each entrance from an exit passageway or exit corridor to the mall. In open mall buildings, adjacent to each public entrance to the mall at the perimeter line and adjacent to each entrance from an exit passageway or exit corridor to the mall.
5. Where the roof has a slope less than four units vertical in 12 units horizontal (33.3-percent slope), a hose connection shall be located to serve the roof or at the highest landing of a stairway with stair access to the roof provided in accordance with Section 1009.16.
6. Where the most remote portion of a nonsprinklered floor or story is more than 150 feet (45 720 mm) from a hose connection or the most remote portion of a sprinklered floor or story is more than 200 feet (60 960 mm) from a hose connection, the fire code official is authorized to require that additional hose connections be provided in approved locations.
- Doors not large enough to accommodate a written sign shall be marked with a permanently attached pictogram of the equipment contained therein.
- Doors that have either an approved visual identification clear glass panel or a complete glass door panel are not required to be marked.
- Visual identification panels of glass or other approved transparent frangible material that is easily broken and allows access.
- Approved locking arrangements.
- Group I-3 occupancies.
- In all Group A, B, E, F, H, I, M, R-1, R-2, R-4 and S occupancies.
Exception: In all Group E occupancies equipped throughout with an approved automatic sprinkler system installed in accordance with Section 903.3.1.1, fire extinguishers shall be required only in laundry rooms, boiler and furnace rooms, mechanical and electrical rooms, garages, stages, projection booths, shops, laboratories, kitchens, locker rooms, custodial closets, trash-collection rooms, storage rooms greater than 100 square feet, and similar areas.
- Within 30 feet (9144 mm) of commercial cooking equipment.
- In areas where flammable or combustible liquids are stored, used or dispensed.
- On each floor of structures under construction, except Group R-3 occupancies, in accordance with Section 3315.1.
- Where required by the sections indicated in Table 906.1.
- Special-hazard areas, including but not limited to laboratories, computer rooms and generator rooms, where required by the fire code official.
- Group R-3 occupancies used as family day care, group family day care, foster care, adult family day services and residential hospices.
ADDITIONAL REQUIRED PORTABLE FIRE EXTINGUISHERS
|309.4||Powered industrial trucks|
|2005.2||Aircraft towing vehicles|
|2005.3||Aircraft welding apparatus|
|2005.4||Aircraft fuel-servicing tank vehicles|
|2005.5||Aircraft hydrant fuel-servicing vehicles|
|2005.6||Aircraft fuel-dispensing stations|
|2007.7||Heliports and helistops|
|2108.4||Dry cleaning plants|
|2305.5||Motor fuel-dispensing facilities|
|2310.6.4||Marine motor fuel-dispensing facilities|
|2809.5||Exterior lumber storage|
|3104.12||Tents and membrane structures|
|3315.1||Buildings under construction or demolition|
|3504.2.6||Welding and other hot work|
|5703.2.1||Flammable and combustible liquids, general|
|5704.3.3.1||Indoor storage of flammable and combustible liquids|
|5704.3.7.5.2||Liquid storage rooms for flammable and combustible liquids|
|5705.4.9||Solvent distillation units|
|5706.2.7||Farms and construction sites—flammable and combustible liquids storage|
|5706.4.10.1||Bulk plants and terminals for flammable and combustible liquids|
|5706.5.4.5||Commercial, industrial, governmental or manufacturing establishments—fuel dispensing|
|5706.6.4||Tank vehicles for flammable and combustible liquids|
|NFPA 10 Section 7.1.2 requires personnel servicing fire extinguishers to be certified or licensed by a governmental agency. This would require legislative action and there is no such mandate at this time. Personnel should be factory trained and possess some type of certificate indicating this.|
- The travel distance to reach an extinguisher shall not apply to the spectator seating portions of Group A-5 occupancies.
- Thirty-day inspections shall not be required and maintenance shall be allowed to be once every three years for dry-chemical or halogenated agent portable fire extinguishers that are supervised by a listed and approved electronic monitoring device, provided that all of the following conditions are met:
- Electronic monitoring shall confirm that extinguishers are properly positioned, properly charged and unobstructed.
- Loss of power or circuit continuity to the electronic monitoring device shall initiate a trouble signal.
- The extinguishers shall be installed inside of a building or cabinet in a noncorrosive environment.
- Electronic monitoring devices and supervisory circuits shall be tested every three years when extinguisher maintenance is performed.
- A written log of required hydrostatic test dates for extinguishers shall be maintained by the owner to verify that hydrostatic tests are conducted at the frequency required by NFPA 10.
- In Group I-3, portable fire extinguishers shall be permitted to be located at staff locations.
FIRE EXTINGUISHERS FOR CLASS A FIRE HAZARDS
|Minimum rated single extinguisher||2-Ac||2-A||4-Aa|
|Maximum floor area per unit of A||3,000 |
|Maximum floor area for extinguisherb||11,250 |
|Maximum travel distance to extinguisher||75 feet||75 feet||75 feet|
|For SI: 1 foot = 304.8 mm, 1 square foot = 0.0929 m2, 1 gallon = 3.785 L.|
|a. Two 21/2-gallon water-type extinguishers shall be deemed the equivalent of one 4-A rated extinguisher.|
|b. Annex E.3.3 of NFPA 10 provides more details concerning application of the maximum floor area criteria.|
|c. Two water-type extinguishers each with a 1-A rating shall be deemed the equivalent of one 2-A rated extinguisher for Light (Low) Hazard Occupancies.|
|TYPE OF HAZARD||BASIC MINIMUM |
|MAXIMUM TRAVEL |
|Light (Low)||5-B |
|Ordinary (Moderate)||10-B |
|Extra (High)||40-B |
|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.|
|a. For requirements on water-soluble flammable liquids and alternative sizing criteria, see Section 5.5 of NFPA 10.|
- Where portable fire extinguishers subject to malicious use or damage are provided with a means of ready access.
- In Group I-3 occupancies and in mental health areas in Group I-2 occupancies, access to portable fire extinguishers shall be permitted to be locked or to be located in staff locations provided the staff has keys.
- A floor plan that indicates the use of all rooms.
- Locations of alarm-initiating devices.
- Locations of alarm notification appliances, including candela ratings for visible alarm notification appliances.
- Location of fire alarm control unit, transponders and notification power supplies.
- Power connection.
- Battery calculations.
- Conductor type and sizes.
- Voltage drop calculations.
- Manufacturers' data sheets indicating model numbers and listing information for equipment, devices and materials.
- Details of ceiling height and construction.
- The interface of fire safety control functions.
- Classification of the supervising station.
- Assembly areas used solely for worship purposes.
- A fire alarm system is not required in buildings with an occupant load less than 1,000 when an approved automatic fire sprinkler system is installed throughout the building.
- Assembly uses located inside Group E occupancies shall have alarms as required for the Group E occupancy.
- Group A-5 occupancies. See also Section 907.2.11.
- The building has an occupant load of 500 or more persons;
- The building has an occupant load of more than 100 persons above or below the lowest level of exit discharge; or
- The building contains an ambulatory care facility.
- In buildings protected throughout by an approved, fire sprinkler system, manual fire alarm boxes are only required in the main office and in a custodial area.
- Where all corridors are protected by an approved automatic fire alarm system having smoke detection with alarm verification, manual fire alarm boxes are only required near exits serving shops, chemistry and physics laboratories, boiler rooms, industrial technology and industrial arts rooms, kitchens, custodian's offices and main offices.
- In lieu of audible notification appliances, visible notification appliances shall be allowed to be used in critical care areas.
- Where occupants are incapable of evacuating themselves because of age, physical/mental disabilities or physical restraint, only the attendants or other personnel required to evacuate occupants from a zone, area, floor or building shall be required to be notified. This notification shall include means to readily identify the zone, area, floor or building in need of evacuation.
- Corridor smoke detection shall not be required where the sleeping room smoke detectors required in Section 907.2.6.2.3 are connected to an approved fire alarm system and activate a general evacuation signal.
- Manual fire alarm boxes shall not be required at exits from patient sleeping areas if located at all nurses' stations or other constantly attended staff locations, provided such fire alarm boxes are visible and continuously accessible and that travel distances horizontally on the same floor shall not exceed 200 feet to reach a manual fire alarm box.
- In lieu of audible notification appliances, visible notification appliances shall be allowed to be used in critical care areas.
- Where occupants are incapable of evacuating themselves because of age, physical/mental disabilities, or physical restraint, only the attendants or other personnel required to evacuate occupants from a zone, area, floor, or building shall be required to be notified. This notification shall include means to readily identify the zone, area, floor, or building in need of evacuation.
- Where total evacuation of occupants is impractical due to building configuration, only the occupants in the affected zones shall be initially notified. Provisions shall be made to selectively notify occupants in other zones to afford orderly evacuation of the entire building.
- Other approved smoke-detection arrangements providing equivalent protection, such as placing detectors in exhaust ducts from cells or behind protective grills, are allowed when necessary to prevent damage or tampering.
- Smoke detectors are not required in sleeping rooms with four or fewer occupants in smoke compartments that are equipped throughout with an approved automatic sprinkler system.
- A fire alarm system is not required in buildings not over two stories in height where all individual sleeping units and contiguous attic and crawl spaces are separated from each other and public or common areas by at least one-hour fire partitions and each sleeping unit has an exit directly to a public way, exit court or yard.
- Buildings containing five or fewer sleeping units shall be allowed to be equipped with approved multiple-station smoke alarms installed as required for Group R-3 occupancies. Installation shall be in accordance with Section 907.2.11.
- Any sleeping unit or dwelling unit is located two or more stories above the story containing the lowest level of exit discharge;
- Any sleeping unit or dwelling unit is located more than one story below the highest level of exit discharge of exits serving the dwelling unit;
- The building contains more than 16 dwelling units or sleeping units; or
- The building is used as a congregate living facility, dormitory, convent, monastery, fraternity, sorority, group home, or shelter and has an occupant load of 20 or more.
- A fire alarm system is not required in buildings two stories or less in height where all individual sleeping units and contiguous attic and crawl spaces to those units are separated from each other and public or common areas by at least one-hour fire partitions and each sleeping unit room has an exit directly to a public way, exit court, or yard.
- Buildings containing five or fewer sleeping units shall be allowed to be equipped with approved multiple-station smoke alarms installed as required for Group R-3 occupancies. Installation shall be in accordance with Section 907.2.11.
- In sleeping areas.
- In every room in the path of the means of egress from the sleeping area to the door leading from the sleeping unit.
- In each story within the sleeping unit, including basements. For sleeping units with split levels and without an intervening door between the adjacent levels, a smoke alarm installed on the upper level shall suffice for the adjacent lower level provided that the lower level is less than one full story below the upper level.
- On the ceiling or wall outside of each separate sleeping area in the immediate vicinity of bedrooms.
- In each room used for sleeping purposes.
3. In each story within a dwelling unit, including basements but not including crawl spaces and uninhabitable attics. In dwellings or dwelling units with split levels and without an intervening door between the adjacent levels, a smoke alarm installed on the upper level shall suffice for the adjacent lower level provided that the lower level is less than one full story below the upper level.
- Smoke alarms are not required to be equipped with battery backup in Group R-1 where they are connected to an emergency electrical system.
- Smoke alarms are not required to be equipped with battery backup in Group R-2 occupancies equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2.
- Smoke alarms installed in sleeping rooms of Group R-3 buildings equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1, 903.3.1.2, or 903.3.1.3 are allowed to be battery powered.
- Cause illumination of the means of egress with light of not less than 1 footcandle (11 lux) at the walking surface level;
- Stop any conflicting or confusing sounds and visual distractions;
- Activate an approved directional exit marking that will become apparent in an emergency; and
- Activate a prerecorded message, audible throughout the special amusement building, instructing patrons to proceed to the nearest exit. Alarm signals used in conjunction with the prerecorded message shall produce a sound which is distinctive from other sounds used during normal operation.
- Airport traffic control towers in accordance with Section 907.2.22 and Section 412 of the International Building Code.
- Open parking garages in accordance with Section 406.5 of the International Building Code.
- Buildings with an occupancy in Group A-5 in accordance with Section 303.1 of the International Building Code.
- Low-hazard special occupancies in accordance with Section 503.1.1 of the International Building Code.
- Buildings with an occupancy in Group H-1, H-2 or H-3 in accordance with Section 415 of the International Building Code.
- In Group I-1 and I-2 occupancies, the alarm shall sound at a constantly attended location and occupant notification shall be broadcast by the emergency voice/alarm communication system.
- In the main return air and exhaust air plenum of each air-conditioning system having a capacity greater than 2,000 cubic feet per minute (cfm) (0.94 m3/s). Such detectors shall be located in a serviceable area downstream of the last duct inlet.
- At each connection to a vertical duct or riser serving two or more stories from a return air duct or plenum of an air-conditioning system. In Group R-1 and R-2 occupancies, a smoke detector is allowed to be used in each return air riser carrying not more than 5,000 cfm (2.4 m3/s) and serving not more than 10 air-inlet openings.
- Mechanical equipment, electrical, transformer, telephone equipment, elevator machine or similar rooms.
- Elevator lobbies.
- The main return and exhaust air plenum of each air-conditioning system serving more than one story and located in a serviceable area downstream of the last duct inlet.
- Each connection to a vertical duct or riser serving two or more floors from return air ducts or plenums of heating, ventilating and air-conditioning systems, except that in Group R occupancies, a listed smoke detector is allowed to be used in each return air riser carrying not more than 5,000 cfm (2.4 m3/s) and serving not more than 10 air inlet openings.
- Visible alarm notification appliances shall be allowed in lieu of audible alarm notification appliances in critical care areas of Group I-2 occupancies.
- Where provided, audible notification appliances located in each occupant evacuation elevator lobby in accordance with Section 3008.10.1 of the International Building Code shall be connected to a separate notification zone for manual paging only.
- Visible alarm notification appliances are not required in alterations, except where an existing fire alarm system is upgraded or replaced, or a new fire alarm system is installed.
- Visible alarm notification appliances shall not be required in exits as defined in Chapter 2.
- Visible alarm notification appliances shall not be required in elevator cars.
|NUMBER OF SLEEPING UNITS||SLEEPING ACCOMMODATIONS |
WITH VISIBLE ALARMS
|6 to 25||2|
|26 to 50||4|
|51 to 75||7|
|76 to 100||9|
|101 to 150||12|
|151 to 200||14|
|201 to 300||17|
|301 to 400||20|
|401 to 500||22|
|501 to 1,000||5% of total|
|1,001 and over||50 plus 3 for each 100 over 1,000|
- A calibrated test method;
- The manufacturer's calibrated sensitivity test instrument;
- Listed control equipment arranged for the purpose;
- A smoke detector/control unit arrangement whereby the detector causes a signal at the control unit where the detector's sensitivity is outside its acceptable sensitivity range; or
- Another calibrated sensitivity test method acceptable to the fire code official.
- Detectors listed as field adjustable shall be permitted to be either adjusted within the listed and marked sensitivity range and cleaned and recalibrated or they shall be replaced.
- This requirement shall not apply to single-station smoke alarms.
|For carbon monoxide requirements in one- and two-family homes, townhouses and Group R-2 apartments, see Minnesota Statute 299F.50 and 299F.51 and SFMD info sheet at dps.mn.gov/divisions/sfm. For new construction of Group I and R occupancies, see Minnesota State Building Code Section 908.7, Carbon Monoxide Alarms, and Section 908.7.1, Carbon Monoxide Detection Systems.|
- Walls: A/Aw = 0.00100
- Interior exit stairways and ramps and exit passageways: A/Aw= 0.00035
- Enclosed exit access stairways and ramps and all other shafts: A/Aw = 0.00150
- Floors and roofs: A/AF= 0.00050
|A||=||Total leakage area, square feet (m2).|
|AF||=||Unit floor or roof area of barrier, square feet (m2).|
|Aw||=||Unit wall area of barrier, square feet (m2).|
The leakage area ratios shown do not include openings due to doors, operable windows or similar gaps. These shall be included in calculating the total leakage area.
- Passive smoke control systems with automatic-closing devices actuated by spot-type smoke detectors listed for releasing service installed in accordance with Section 907.3.
- Fixed openings between smoke zones that are protected utilizing the airflow method.
- In Group I-2, where such doors are installed across corridors, a pair of opposite-swinging doors without a center mullion shall be installed having vision panels with fire protection-rated glazing materials in fire protection-rated frames, the area of which shall not exceed that tested. The doors shall be close-fitting within operational tolerances and shall not have undercuts, louvers or grilles. The doors shall have head and jamb stops, astragals or rabbets at meeting edges and shall be automatic-closing by smoke detection in accordance with Section 7188.8.131.52 of the International Building Code. Positive-latching devices are not required.
- Group I-3.
- Openings between smoke zones with clear ceiling heights of 14 feet (4267 mm) or greater and bank-down capacity of greater than 20 minutes as determined by the design fire size.
|A||=||Door area, square feet (m2).|
|d||=||Distance from door handle to latch edge of door, feet (m).|
|F||=||Total door opening force, pounds (N).|
|Fdc||=||Force required to overcome closing device, pounds (N).|
|K||=||Coefficient 5.2 (1.0).|
|W||=||Door width, feet (m).|
|ΔP||=||Design pressure difference, inches of water (Pa).|
v = 217.2 [h(Tf - To)/(Tf + 460)]1/2 (Equation 9-2)
For SI: v = 119.9 [h(Tf - To)/Tf]1/2
|h||=||Height of opening, feet (m).|
|Tf||=||Temperature of smoke, °F (K).|
|To||=||Temperature of ambient air, °F (K).|
|v||=||Air velocity, feet per minute (m/minute).|
|c||=||Specific heat of smoke at smokelayer temperature, Btu/lb°F • (kJ/kg • K).|
|m||=||Exhaust rate, pounds per second (kg/s).|
|Qc||=||Convective heat output of fire, Btu/s (kW).|
|Ta||=||Ambient temperature, °F (K).|
|Ts||=||Smoke temperature, °F (K).|