International Building Code Section 710


International Building Code 710.1

General. Smoke partitions installed as required elsewhere
in the code shall comply with this section.

International Building Code 710.2

Materials. The walls shall be of materials permitted by
the building type of construction.

International Building Code 710.3

Fire-resistance rating. Unless required elsewhere in the
code, smoke partitions are not required to have a fire-resistance
rating.

International Building Code 710.4

Continuity. Smoke partitions shall extend from the top
of the foundation or floor below to the underside of the floor or
roof sheathing, deck or slab above or to the underside of the
ceiling above where the ceiling membrane is constructed to
limit the transfer of smoke.

International Building Code 710.5

Openings.Windows shall be sealed to resist the free passage
of smoke or be automatic-closing upon detection of smoke.
Doors in smoke partitions shall comply with this section.

Louvers. Doors in smoke partitions shall not
include louvers.

Smoke and draft control doors. Where required
elsewhere in the code, doors in smoke partitions shall be
tested in accordance with UL 1784 with an artificial bottom
seal installed across the full width of the bottom of the door
assembly during the test. The air leakage rate of the door
assembly shall not exceed 3 cubic feet per minute per square
foot [ft3/(min #?ft2)](0.015424 m3/ s #?m2) of door opening at
0.10 inch (24.9Pa) of water for both the ambient temperature
test and the elevated temperature exposure test.

Self- or automatic-closing doors. Where required
elsewhere in the code, doors in smoke partitions shall be
self- or automatic closing by smoke detection in accordance
with Section 715.4.7.3.

International Building Code 710.5.1

Louvers. Doors in smoke partitions shall not
include louvers.

International Building Code 710.5.2

Smoke and draft control doors. Where required
elsewhere in the code, doors in smoke partitions shall be
tested in accordance with UL 1784 with an artificial bottom
seal installed across the full width of the bottom of the door
assembly during the test. The air leakage rate of the door
assembly shall not exceed 3 cubic feet per minute per square
foot [ft3/(min #?ft2)](0.015424 m3/ s #?m2) of door opening at
0.10 inch (24.9Pa) of water for both the ambient temperature
test and the elevated temperature exposure test.

International Building Code 710.5.3

Self- or automatic-closing doors. Where required
elsewhere in the code, doors in smoke partitions shall be
self- or automatic closing by smoke detection in accordance
with Section 715.4.7.3.

International Building Code 710.6

Penetrations and joints. The space around penetrating
items and in joints shall be filled with an approved material to
limit the free passage of smoke.

International Building Code 710.7

Ducts and air transfer openings. The space around a
duct penetrating a smoke partition shall be filled with an
approved material to limit the free passage of smoke. Air transfer
openings in smoke partitions shall be provided with a
smoke damper complying with Section 716.3.2.
Exception: Where the installation of a smoke damper will
interfere with the operation of a required smoke control sys-
tem in accordance with Section 909, approved alternative
protection shall be utilized.