International Building Code Section 2604


International Building Code 2604.1

General. Plastic materials installed as interior finish or
trim shall comply with Chapter 8. Foam plastics shall only be
installed as interior finish where approved in accordance with
the special provisions of Section 2603.9. Foam plastics that are
used as interior finish shall also meet the flame spread index
requirements for interior finish in accordance with Chapter 8.
Foam plastics installed as interior trim shall comply with Section
2604.2.

International Building Code 2604.2

Interior trim. Foam plastic used as interior trim
shall comply with Sections 2604.2.1 through 2604.2.4.
L

Density. The minimum density of the interior
trim shall be 20 pcf (320 kg/m3).

Thickness. The maximum thickness of the
interior trim shall be 0.5 inch (12.7 mm) and the maximum
width shall be 8 inches (204 mm).

Area limitation. The interior trim shall not
constitute more than 10 percent of the aggregate wall and
ceiling area of any room or space.

Flame spread. The flame spread index shall
not exceed 75 where tested in accordance with ASTM E 84.
The smoke-developed index shall not be limited.
510 2006 INTERNATIONAL BUILDING CODE.
PLASTIC
VERY HEAVY
MODERATE TO HEAVY
SLIGHT TO MODERATE
NONE TO SLIGHT
FIGURE 2603.8
TERMITE INFESTATION PROBABILITY MAP

International Building Code 2604.2.1

Density. The minimum density of the interior
trim shall be 20 pcf (320 kg/m3).

International Building Code 2604.2.2

Thickness. The maximum thickness of the
interior trim shall be 0.5 inch (12.7 mm) and the maximum
width shall be 8 inches (204 mm).

International Building Code 2604.2.3

Area limitation. The interior trim shall not
constitute more than 10 percent of the aggregate wall and
ceiling area of any room or space.

International Building Code 2604.2.4

Flame spread. The flame spread index shall
not exceed 75 where tested in accordance with ASTM E 84.
The smoke-developed index shall not be limited.
510 2006 INTERNATIONAL BUILDING CODE.
PLASTIC
VERY HEAVY
MODERATE TO HEAVY
SLIGHT TO MODERATE
NONE TO SLIGHT
FIGURE 2603.8
TERMITE INFESTATION PROBABILITY MAP