Article 22 - MALLS

Section 27-521.10

Section 27-521.10

  §   27-521.10   Applicability.   This   article  shall  apply  to  the
construction, alteration and use of malls.

Section 27-521.11

Section 27-521.11

  §  27-521.11  Classification.  A mall shall be classified in occupancy
group C.

Section 27-521.12

Section 27-521.12

  §  27-521.12 Construction; general. (a) A mall may be constructed only
in buildings in noncombustible construction groups 1-A, 1-B and 1-C.
  (b) The minimum horizontal clear dimension at  any  level  in  a  mall
shall be twenty feet.
  (c)  Where  different  tenancies have openings to a mall the tenancies
shall be separated in accordance with section 27-341 of article five  of
subchapter five of this chapter.
  (d)  All  openings  between  a mall and other spaces shall be provided
with a noncombustible draft curtain that shall extend downward a minimum
of twenty-four inches below the lowest ceiling adjacent  to  such  draft
curtain or shall meet the requirements of clause three of subparagraph d
of  paragraph three of subdivision (h) of section 27-370 of article five
of subchapter six of this chapter relating to show windows.

Section 27-521.13

Section 27-521.13

  §  27-521.13  Fire  protection  equipment.  (a) Smoke detectors. Smoke
detectors meeting the specifications of section 27-981 of article six of
subchapter seventeen shall be located at the  ceiling  and  adjacent  to
each return air intake.
  (b)  Standpipes.  At  least one standpipe outlet shall be installed in
every mall.
  (c) Sprinklers. An automatic wet sprinkler system shall  be  installed
in every mall.
  (1)  All  spaces with openings between such spaces and a mall shall be
fully sprinklered  in  accordance  with  subchapter  seventeen  of  this
chapter  and  reference  standard  RS  17-2  regardless of floor area or
occupancy classification.

Section 27-521.14

Section 27-521.14

  §  27-521.14  Egress.  The  exits  for  a  mall shall be of sufficient
capacity to accommodate the aggregate occupant load of the mall and  all
spaces opening onto the mall.

Section 27-521.15

Section 27-521.15

  §  27-521.15 Smoke control. (a) In all malls there shall be provided a
system of mechanical ventilation of sufficient capacity  to  exhaust  at
least  six  air changes per hour of the combined volumes of the mall and
all spaces with an open connection to the mall, or 1  cfm/sq.  ft.  from
all  such  spaces,  whichever  is  greater,  using  either dedicated fan
equipment or the building  ventilation  system  arranged  to  shut  down
automatically,  with  manual  override  capability. Make-up air shall be
supplied at the lowest level of a mall at a rate equal  to  seventy-five
per cent of exhaust.
  (b)  All  malls  shall have a gravity ventilation system equipped with
remote manual controls to remove smoke if the mechanical exhaust  system
fails.
  (c)  A  ventilation  system serving a mall shall not be interconnected
with any other system serving another space.
  (d)  Ventilation  systems  supplying  occupied  spaces  shall  not  be
interconnected with the general mall supply.

Section 27-521.16

Section 27-521.16

  §  27-521.16 Signs. Malls shall be provided with all signs required by
articles seven and nine of subchapter six of this chapter, regardless of
occupant load of the mall.