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Rooftop and open parking garage ESS installations shall comply with Sections 1207.9.1 through 1207.9.6.
TABLE 1207.9
SPECIAL ESS INSTALLATIONS
COMPLIANCE REQUIRED ROOFTOPSa OPEN PARKING GARAGESb
Feature Section
All ESS installations 1207.4 Yes Yes
Clearance to exposures 1207.9.3 Yes Yes
Fire suppression systems 1207.9.4 Yes Yes
Maximum allowable quantities 1207.5.2 Yes Yes
Maximum enclosure size 1207.5.6 Yes Yes
Means of egress separation 1207.5.8 Yes Yes
Open parking garage installations 1207.9.6 No Yes
Rooftop installations 1207.9.5 Yes No
Size and separation 1207.5.1 Yes Yes
Smoke and automatic fire detection 1207.5.4 Yes Yes
Technology-specific protection 1207.6 Yes Yes
1207.9.1 Rooftop Installations
For the purpose of Table 1207.9, rooftop ESS installations are those located on the roofs of buildings.
1207.9.2 Open Parking Garage Installations
For the purpose of Table 1207.9, open parking garage ESS installations are those located in a structure or portion of a structure that complies with Section 406.5 of the International Building Code.
1207.9.3 Clearance to Exposures
ESS located on rooftops and in open parking garages shall be separated by a minimum of 10 feet (3048 mm) from the following exposures:
  1. Buildings, except the building on which rooftop ESS is mounted.
  2. Any portion of the building on which a rooftop system is mounted that is elevated above the rooftop on which the system is installed.
  3. Lot lines.
  4. Public ways.
  5. Stored combustible materials.
  6. Locations where motor vehicles can be parked.
  7. Hazardous materials.
  8. Other exposure hazards.
Exceptions:
  1. Clearances are permitted to be reduced to 3 feet (914 mm) where a 1-hour free-standing fire barrier suitable for exterior use and extending 5 feet (1524 mm) above and 5 feet (1524 mm) beyond the physical boundary of the ESS installation is provided to protect the exposure.
  2. Clearances are permitted to be reduced to 3 feet (914 mm) where a weatherproof enclosure constructed of noncombustible materials is provided over the ESS, and it has been demonstrated that a fire within the enclosure will not ignite combustible materials outside the enclosure based on large-scale fire testing complying with Section 1207.1.5.
 
1207.9.4 Fire Suppression Systems
ESS located in walk-in units on rooftops or in walk-in units in open parking garages shall be provided with automatic fire suppression systems within the ESS enclosure in accordance with Section 1207.5.5. Areas containing ESS other than walk-in units in open parking structures on levels not open above to the sky shall be provided with an automatic fire suppression system complying with Section 1207.5.5.
Exception: A fire suppression system is not required in open parking garages if large-scale fire testing complying with Section 1207.1.5 is provided that shows that a fire will not impact the exposures in Section 1207.9.3.
1207.9.5 Rooftop Installations
ESS and associated equipment that are located on rooftops and not enclosed by building construction shall comply with the following:
  1. Stairway access to the roof for emergency response and fire department personnel shall be provided either through a bulkhead from the interior of the building or a stairway on the exterior of the building.
  2. Service walkways at least 5 feet (1524 mm) in width shall be provided for service and emergency personnel from the point of access to the roof to the system.
  3. ESS and associated equipment shall be located from the edge of the roof a distance equal to at least the height of the system, equipment or component but not less than 5 feet (1524 mm).
  4. The roofing materials under and within 5 feet (1524 mm) horizontally from an ESS or associated equipment shall be noncombustible or shall have a Class A rating when tested in accordance with ASTM E108 or UL 790.
  5. A Class I standpipe outlet shall be installed at an approved location on the roof level of the building or in the stairway bulkhead at the top level.
  6. The ESS shall be the minimum of 10 feet (3048 mm) from the fire service access point on the rooftop.
1207.9.6 Open Parking Garages
ESS and associated equipment that are located in open parking garages shall comply with all of the following:
  1. ESS shall not be located within 50 feet (15 240 mm) of air inlets for building HVAC systems.
    Exception: This distance shall be permitted to be reduced to 25 feet (7620 mm) if the automatic fire alarm system monitoring the radiant-energy sensing detectors de-energizes the ventilation system connected to the air intakes upon detection of fire.
  2. ESS shall not be located within 25 feet (7620 mm) of exits leading from the attached building where located on a covered level of the parking structure not directly open to the sky above.
  3. An approved fence with a locked gate or other approved barrier shall be provided to keep the general public at least 5 feet (1524 mm) from the outer enclosure of the ESS.

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