PART 2
PRODUCTS
2.1
FIRESTOPPING MATERIALS
Firestopping materials shall consist of commercially manufactured,
asbestos-free, noncombustible products FM P7825a approved, or UL listed,
for use with applicable construction and penetrating items, complying with
the following minimum requirements:
2.1.1
Fire Hazard Classification
Material shall have a flame spread of 25 or less, and a smoke developed
rating of 50 or less, when tested in accordance with ASTM E 84 or UL 723.
Material shall be an approved firestopping material as listed in UL Fire
Resist Dir or by a nationally recognized testing laboratory.
2.1.2
Toxicity
Material shall be nontoxic to humans at all stages of application or during
fire conditions.
2.1.3
Fire Resistance Rating
Firestop systems shall be UL Fire Resist Dir listed or FM P7825a approved
with "F" rating at least equal to fire-rating of fire wall or floor in
which penetraded openings are to be protected, except that "F" rating may
be 3 hours in through-penetrations of 4 hour fire rated wall or floor.
Firestop systems shall also have "T" rating where required.
2.1.3.1
Through-Penetrations
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Note: Insert the appropriate time period required
in accordance with Chapter 7, Sections 711 through
716 of the International Building Code (IBC).
Indicate locations of fire resistance rated walls,
partitions, floors, ceiling-floor assemblies and
other locations requiring firestopping.
When second option in item a. is selected, rating of
walls and partitions being penetrated must be shown
on the drawings.
If smoke barrier walls are required in the project,
show them on the drawings.
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Firestopping materials for through-penetrations, as described in paragraph
GENERAL REQUIREMENTS, shall provide "F" and "T" fire resistance ratings in
accordance with ASTM E 814 or UL 1479. Fire resistance ratings shall be as
follows:
a.
Penetrations of Fire Resistance Rated Walls and Partitions:
F
Rating = [[_____] hour] [Rating of wall or partition being
penetrated].
b.
Penetrations of Fire Resistance Rated Floors, Floor-Ceiling
Assemblies and the ceiling membrane of Roof-Ceiling Assemblies:
F
SECTION 07840
Page 6
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