International Building Code Section 706


International Building Code 706.10

Ducts and air transfer openings. Penetrations in a fire
barrier by ducts and air transfer openings shall comply with
Section 716.

International Building Code 706.1

General. Fire barriers installed as required elsewhere in
this code or the International Fire Code shall comply with this
section.

International Building Code 706.2

Materials. Fire barriers shall be of materials permitted
by the building type of construction.

Fire-resistance-rated glazing. Fire-resistance-
rated glazing, when tested in accordance with ASTM
E 119 and complying with the requirements of Section 706,
shall be permitted. Fire-resistance-rated glazing shall bear a
label or other identification showing the name of the manufacturer,
the test standard and the identifier “W-XXX,”
where the “XXX” is the fire-resistance rating in minutes.
Such label or identification shall be issued by an approved
agency and shall be permanently affixed to the glazing.

International Building Code 706.2.1

Fire-resistance-rated glazing. Fire-resistance-
rated glazing, when tested in accordance with ASTM
E 119 and complying with the requirements of Section 706,
shall be permitted. Fire-resistance-rated glazing shall bear a
label or other identification showing the name of the manufacturer,
the test standard and the identifier “W-XXX,”
where the “XXX” is the fire-resistance rating in minutes.
Such label or identification shall be issued by an approved
agency and shall be permanently affixed to the glazing.

International Building Code 706.3

Fire-resistance rating. The fire-resistance rating of fire
barriers shall comply with this section.

Shaft enclosures. The fire-resistance rating of the
fire barrier separating building areas from a shaft shall comply
with Section 707.4.

Exit enclosures. The fire-resistance rating of the
fire barrier separating building areas from an exit shall comply
with Section 1020.1.

Exit passageway. The fire-resistance rating of the
separation between building areas and an exit passageway
shall comply with Section 1021.1.

Horizontal exit. The fire-resistance rating of the
separation between building areas connected by a horizontal
exit shall comply with Section 1022.1.

Atriums. The fire-resistance rating of the fire barrier
separating atriums shall comply with Section 404.5.

Incidental use areas. The fire barrier separating
incidental use areas shall have a fire-resistance rating of not
less than that indicated in Table 508.2.

Control areas. Fire barriers separating control
areas shall have a fire-resistance rating of not less than that
required in Section 414.2.3.

Separation of mixed occupancies. Where the provisions
of Section 508.3.2 are applicable, the fire barrier
separating mixed occupancies shall have a fire-resistance
rating of not less than that indicated in Section 508.3.2
based on the occupancies being separated.

Single-occupancy fire areas. The fire barrier or
horizontal assembly, or both, separating a single occupancy
into different fire areas shall have a fire-resistance rating of
not less than that indicated in Table 706.3.9.

International Building Code 706.3.1

Shaft enclosures. The fire-resistance rating of the
fire barrier separating building areas from a shaft shall comply
with Section 707.4.

International Building Code 706.3.2

Exit enclosures. The fire-resistance rating of the
fire barrier separating building areas from an exit shall comply
with Section 1020.1.

International Building Code 706.3.3

Exit passageway. The fire-resistance rating of the
separation between building areas and an exit passageway
shall comply with Section 1021.1.

International Building Code 706.3.4

Horizontal exit. The fire-resistance rating of the
separation between building areas connected by a horizontal
exit shall comply with Section 1022.1.

International Building Code 706.3.5

Atriums. The fire-resistance rating of the fire barrier
separating atriums shall comply with Section 404.5.

International Building Code 706.3.6

Incidental use areas. The fire barrier separating
incidental use areas shall have a fire-resistance rating of not
less than that indicated in Table 508.2.

International Building Code 706.3.7

Control areas. Fire barriers separating control
areas shall have a fire-resistance rating of not less than that
required in Section 414.2.3.

International Building Code 706.3.8

Separation of mixed occupancies. Where the provisions
of Section 508.3.2 are applicable, the fire barrier
separating mixed occupancies shall have a fire-resistance
rating of not less than that indicated in Section 508.3.2
based on the occupancies being separated.

International Building Code 706.3.9

Single-occupancy fire areas. The fire barrier or
horizontal assembly, or both, separating a single occupancy
into different fire areas shall have a fire-resistance rating of
not less than that indicated in Table 706.3.9.

International Building Code 706.4

Exterior walls. Where exterior walls serve as a part of a
required fire-resistance-rated shaft or exit enclosure, such
walls shall comply with the requirements of Section 704 for
exterior walls and the fire-resistance-rated enclosure requirements
shall not apply.
Exception: Exterior walls required to be fire-resistance
rated in accordance with Section 1023.6.

International Building Code 706.5

Continuity. Fire barriers shall extend from the top of the
floor/ceiling assembly below to the underside of the floor or
roof slab or deck above and shall be securely attached thereto.
Such fire barriers shall be continuous through concealed
spaces, such as the space above a suspended ceiling. The supporting
construction for fire barrier walls shall be protected to
afford the required fire-resistance rating of the fire barrier supported,
except for 1-hour fire-resistance-rated incidental use
area separations as required by Table 508.2 in buildings of
Type IIB, IIIB and VB construction. Hollow vertical spaces
within a fire barrier shall be fireblocked in accordance with
Section 717.2 at every floor level.
Exceptions:
1. The maximum required fire-resistance rating for
assemblies supporting fire barriers separating tank
storage as provided for in Section 415.6.2.1 shall be 2
hours, but not less than required by Table 601 for the
building construction type.
2. Shaft enclosures shall be permitted to terminate at a
top enclosure complying with Section 707.12.

International Building Code 706.6

Exterior walls. Where exterior walls serve as a part of a
required fire-resistance-rated enclosure or separation, such
walls shall comply with the requirements of Section 704 for
exterior walls, and the fire-resistance-rated enclosure or separation
requirements shall not apply.
Exception: Exterior walls required to be fire-resistance
rated in accordance with Section 1014.5.1 for exterior
egress balconies, Section 1020.1.4 for exit enclosures and
Section 1023.6 for exterior exit ramps and stairways.

International Building Code 706.7

Openings. Openings in a fire barrier wall shall be protected
in accordance with Section 715. Openings shall be limited
to a maximum aggregate width of 25 percent of the length
of the wall, and the maximum area of any single opening shall
not exceed 156 square feet (15m2). Openings in exit enclosures
and exit passageways shall also comply with Sections 1020.1.1
and 1021.4, respectively.
Exceptions:
1. Openings shall not be limited to 156 square feet (15
m2) where adjoining fire areas are equipped throughout
with an automatic sprinkler system in accordance
with Section 903.3.1.1.
2. Fire doors serving an exit enclosure.
3. Openings shall not be limited to 156 square feet (15
m2) or an aggregate width of 25 percent of the length
of the wall where the opening protective assembly has
been tested in accordance withASTME 119 and has a
minimum fire-resistance rating not less than the
fire-resistance rating of the wall.
4. Fire windows permitted in atrium separation walls
shall not be limited to a maximum aggregate width of
25 percent of length of the wall.

International Building Code 706.8

Penetrations. Penetrations of fire barriers shall comply
with Section 712.

Prohibited penetrations. Penetrations into an exit
enclosure or an exit passageway shall be allowed only when
permitted by Section 1020.1.2 or 1021.5, respectively.

International Building Code 706.8.1

Prohibited penetrations. Penetrations into an exit
enclosure or an exit passageway shall be allowed only when
permitted by Section 1020.1.2 or 1021.5, respectively.

International Building Code 706.9

Joints. Joints made in or between fire barriers shall comply
with Section 713.