FIRESTOPPING SPECIFICATION
SECTION 07270 / 07840
1.01
SECTION
INCLUDES
A.
Through penetration
firestops and smoke-stops for all fire-rated bearing and non-bearing wall and
floor assemblies, both blank and those accommodating penetrating items such as
cable, conduit, cable tray, pipes, ducts, etc.
1.02
RELATED SECTIONS
A.
Section 03300 Cast-In-Place Concrete
B.
Section 04200 Masonry
Units
C.
Section 07200 Thermal
Protection
D.
Section 07800 Fire
& Smoke Protection
E.
Section 13900 Fire
Suppression
F.
Section 15050 Basic
Mechanical Materials and Methods
G.
Section 15300 Fire
Protection Piping
H.
Section 16050 Basic
Electrical Materials and Methods
I.
Section 17050 Basic Data Cable Materials and Methods
(proposed)
1.03
REFERENCES
A.
American Society for
Testing and Materials (ASTM) Publications:
1. E 84: Standard Test Method for Surface Burning
Characteristics of Building Materials
2. E 119: Methods of Fire Tests of Building Construction
and Materials
3. E 814: Standard Test Method for Fire Tests of Through
Penetration Firestops
B.
Underwriters
Laboratories Inc. (UL):
1. UL 263: Fire Tests of Building Construction Materials
2. UL 723: Surface Burning Characteristics of Building
Materials
3. UL 1479: Fire Tests of Through-Penetration Firestops
C.
Miscellaneous
Publications:
1. UL Products Certified for Canada
2. Factory Mutual Approval Guide
1.04
DEFINITIONS
A.
Firestopping: The use
of a material or combination of materials in a fire-rated structure (wall or
floor) where it has been breached, so as to restore the integrity of that
structure and prevent the spread of heat, fire, gases and smoke.
B.
System: Specific
products and applications, classified and numbered by Underwriters
Laboratories, Inc., or other third party testing lab, to seal openings in
fire-rated assemblies.
C.
Barrier: Any
bearing or non-bearing wall or floor that has an hourly fire and smoke rating.
D.
Through-Penetration: Any penetration of a fire-rated wall that completely
breaches the barrier.
1.05
DESCRIPTION
A.
Design Requirements for
furnishing and installing firestops in fire rated construction.
1. All penetrations in fire-rated floor and wall
assemblies including blank and penetrated openings.
1.06 SUBMITTALS
A.
All submittals should
comply with Section 01300.
B.
Drawings:
1. Submit manufacturerĂs product literature for each
type of firestop material to be used. Literature shall include documentation of
UL classifications or approved third party testing. ManufacturerĂs name and
number for each part shall be included.
2. Submit drawings of through penetrations which include
the system to be utilized for the firestopping application. Drawing shall
indicate construction of wall or floor assembly; size, number and material of
penetrating items; firestop system designation; required F-rating, T-rating and
remarks.
3. For installations or configurations not covered by a
UL design number, a recommendation shall be obtained from the Manufacturer, in
writing, for the specific application, signed by a certified engineer.
C.
Product Data:
1. Submit Copies of manufacturerĂs product data,
Material Safety Data Sheets (MSDS), specifications, recommendations, standard
details and installation instructions for all firestop assemblies.
D.
Quality Control:
1. Statement of qualifications.
E.
Applicators
Qualification Statement:
1. Submit document from manufacturer wherein
manufacturer recognizes the installer as qualified or submit a list of past
projects to demonstrate capability to perform intended work.
2. Upon completion, installer shall provide written
certification that materials were installed in accordance with the
manufacturerĂs installation instructions and details.
1.07 QUALITY ASSURANCE
A.
Firestopping systems
(material and design):
1. Shall conform to both Flame (F) and Temperature (T)
ratings as required by nationally accepted test agencies per ASTM E814 or UL
1479 fire tests in a configuration that is representative of field conditions.
B.
Firestopping materials
and systems must be capable of closing or filling through-openings created
by‹ 1.) The burning or melting of
combustible pipes, cable jacketing, or pipe insulation materials, or 2.)
Deflection of sheet metal due to thermal expansion (electrical and mechanical
ductwork).
C.
Firestopping material
shall be asbestos and lead free and shall not incorporated nor require the use
of hazardous solvents.
D.
Firestopping sealants
must be flexible, allowing for normal pipe movement.
E.
Firestopping materials
shall not shrink upon drying as evidenced by cracking or pulling back from
contact surfaces.
F.
Firestopping materials
shall be moisture resistant, and may not dissolve in water after curing.
G.
Material used shall be
in accordance with the manufacturerĂs written installation instructions.
1.08 PRODUCT DELIVERY, STORAGE AND
HANDLING
A.
Deliver materials to
project site in manufacturerĂs original packaging clearly identified with
manufacturerĂs name, product identification, lot number, and installation
instructions as applicable.
B.
Store and handle
firestop materials in a location and manner providing protection from damage
and exposure to the elements recommended by the manufacturer.
C.
Material Safety Data
Sheets (MSDS) will be available on the job site for all materials, including
manufacturerĂs guidelines for use, handling and disposal.
1.09 WARRANTY
A.
All firestops and
firesafing materials shall be warranted, in writing, by the manufacturer
against defects in manufacturing and materials.
B.
Completed installation
shall be warranted, in writing, by the installer against defects in
workmanship.
1.10 PROJECT CONDITIONS
A.
Conform to
ManufacturerĂs printed instructions for installation and when applicable, curing
in accordance with temperature and humidity. Conform to ventilation and safety
requirements.
B.
Verify existing
conditions and substrates before starting work and correct any unsatisfactory
conditions.
C.
Weather Conditions: Do
not proceed with installation of firestop materials when temperatures fall
outside the manufacturerĂs suggested limits. Comply with manufacturerĂs
recommendations for temperature and humidity conditions before, during and
after installation of firestopping.
D.
Furnish adequate
ventilation.
E.
Protect surrounding
area to prevent contamination of adjacent surfaces by firestopping materials.
PART 2
PRODUCTS
2.01 FIRESTOP
UNITS FOR MULTI-CABLE & CABLE TRAY PENETRATIONS
A.
Firestopping materials
and systems shall meet the requirements specified herein.
1. All firestop products and systems shall be designed
and installed so that the basic sealing system will allow the full restoration
of the thermal and fire resistance properties of the barrier being penetrated
with minimal repair if penetrants are subsequently removed.
2. Penetrations containing loose electrical, data or
communications cabling shall be protected using firestopping products that
allow unrestricted cable changes without damage to seal.
3. Firestopping materials and systems must be intumescent
or capable of filling through-openings created by the burning or melting of
combustible pipes, pipe insulation materials or cable jacketing and the
deflection of sheet metal due to thermal expansion.
4. Firestop sealants must be elastomeric or flexible to
allow for normal pipe movement.
5. Firestop system shall have F and T Ratings suitable
for intended service, UL tested.
6. All materials shall have a minimum one-year shelf
life.
7. Materials shall not affect or derate the properties
of cables in energized cable applications.
8. Firestop materials shall not contain flammable or
toxic solvents and shall not produce toxic or flammable outgassing during the
drying or curing process.
2.02 THROUGH-PENETRATION
FIRESTOPPING OF FIRE-RATED CONSTRUCTION
A.
Through-penetration firestop
product(s) tested to ASTM E814 listed in the UL Fire Resistance Directory in
which it is classified as a fill, void or cavity material or a firestop device.
This should be classified for approval with the particular type of penetrating
item and the wall or floor assembly that the item is penetrating in order to
maintain the integrity required.
B.
Additional requirements
refer to section 2.01.
2.03 ACCEPTABLE MANUFACTURERS
A.
CSD SEALING SYSTEMS,
Division of Dorn Equipment, 27 Upham Street, Melrose, Massachusetts 02176
2.04 MATERIALS
A.
CSD Firestop (FSP)
1. Enclosure Device a two-piece enclosure (lower
casing and top cover) formed of .061” thick steel. The lower casing has flanged
edges of 2.375” and the top cover is reinforced with steel angle brackets.
2. Fixation plate a .25” steel angle bracket used as
the main support for the firestop unit. The depth of the unit is 10”; the width
and height dimensions are based on the size of the cable tray, or wall or floor
opening.
3. Fill, Void or Cavity Materials
a.
Fire Resistant Rubber
Sponge (FRR-SP) - Nominal 1” thick intumescent (expands on application of heat)
material supplied in sheets of 10” by 12”. This material reacts at temperatures
of 500 degrees F and expands six to ten times its original size to completely seal
the penetration.
b.
Fire Resistant
Rubber/Halogen Free Gaskets (FRR/HF) insert material nominally 1” thick, is a
stable material that does not react to temperature. The material acts as an
insulator in the firestop system and is used on all four sides of the unit
between the enclosure and the sponge material.
4. Fire Resistant, Water Repellent Sealant (FIWA)
Fireproof sealant for both interior and exterior joints. In the event of fire,
this sealant expands and forms a heat insulating char on its surface, which
effectively seals minor cracks and also prevents the spread of flames, smoke,
fumes, and water during a fire. The seal depth should be in the range of .5” to
1”, depending on the joint configuration and backing material.
5. Forming or damming material #8 Mineral Wool is
required for filling the cavity in the penetration when units are installed on
only one side of a wall or when a unit is installed in a floor.
6. Weather shields attach to firestop unit. Optional
when firestop will be exposed to weather.
PART 3
EXECUTION
3.01 EXAMINATION
A.
Examine adjoining
construction and the conditions under which the work is to be completed. Do not
proceed with work until any unsatisfactory conditions detrimental to the proper
and timely completion of the work have been corrected.
B.
Verify adjacent
materials are clean, dry and ready to receive installation.
C.
Verify that openings
and items (penetrations) passing through them are ready to receive the work of
this section.
D.
Verify that field
dimensions are as shown on the drawings and as recommended by the manufacturer.
3.02 PREPARATION
A.
Remove any incompatible
materials (dirt, debris, greases, oils and solvents) which may inhibit the
adhesion or physical properties of the firestop products.
B.
Beginning of
installation means acceptance of existing conditions.
3.03 INSTALLATION
A.
Coordinate with fire
protection and other trades to assure that all pipe, conduit, cable and other
items which penetrate fire rated construction have been permanently installed
prior to installation of firestops. Schedule and sequence work to assure that
partitions and other construction that would conceal penetrations are not
erected prior to the installation of firestops.
B.
Apply firestops at all
locations as required by national, municipal and local governing laws and
codes, per approved submittals referenced in Article 1.06.
C.
Apply firestopping
materials only when the temperature of the surfaces to be filled and
surrounding air temperature comply with the manufacturerĂs printed
instructions.
D.
For all other
applications not covered by literature, installation guides or drawings, call
manufacturer for assistance.
3.04 FIELD EXAMINATION
A.
Examine the areas and
conditions where firestops are to be installed and notify the architect of
conditions detrimental to the proper and timely completion of the work. Do not
proceed to enclose firestopping with other construction until local building
inspectors have inspected the work and given approval to close the work.
3.05 CLEAN-UP
A.
Remove excess
firestopping materials from surfaces not required to be firestopped.
B.
Clean application
equipment in water immediately after use.