UFGS_07_84_00_Firestopping_-_UFGS_07_84_00.pdf

SECTION 07 84 00 Page 1

SECTION 07 84 00

FIRESTOPPING

05/10

PART 1 GENERAL

1.1 SUMMAR Y

Furnish and install tested and listed firestopping systems, combination of materials, or devices to form an effective barrier against the spread of flame, smoke and gases, and maintain the integrity of fire resistance rated walls, partitions, floors, and ceiling-floor assemblies, including through penetrations and construction joints and gaps.

a. Through-penetrations include the annular space around pipes, tubes, conduit, wires, cables and vents.

b. Construction joints include those used to accommodate expansion, contraction, wind, or seismic movement; fire-stopping material shall not interfere with the required movement of the joint .

Gaps requiring fire-stopping include gaps between the curtain wall and the floor slab and between the top of the fire-rated walls and the roof or floor deck above and at the intersection of shaft assemblies and adjoining fire resistance rated assemblies.

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM Ell9 (2016a) Standard Test Methods for Fire

Tests of Building Construction and Materials

ASTM El399/El399M (1997; E 2013:R 2013) Cyclic Movement and

Measuring the Minimum and Maximum Joint Widths of Architectural Joint Systems

ASTM El9 66 (2015) Fire-Resistive Joint Systems

ASTM E2174 (2014b) Standard Practice for On-Site

Inspection of Installed Fire Stops

ASTM E2307 (2015a) Standard Test Method for Determining Fire Resistance of Perimeter Fire Barrier Systems Using Intermediate-Scale, Multi-story Test Apparatus

ASTM E2393 (2010a) Standard Practice for On-Site

Inspection of Installed Fire Resistive Joint Systems and Perimeter Fire Barriers

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ASTM E 699 (2009) Standard Practice for Evaluation of Agencies Involved in Testing, Quality Assurance, and Evaluating of Building Components

ASTM E814 (2013a) Standard Test Method for Fire

Tests of Through-Penetration Fire Stops

ASTM E84 (2016) Standard Test Method for Surface Burning Characteristics of Building

FM GLOBAL (FM)

FM 4991 (2013) Approval of Firestop Contractors

FM APP GUIDE (updated on-line) Approval Guide http ://www .approvalguide.com/

INTERNATIONAL CODE COUNCIL (ICC)

ICC IBC (2015) International Building Code

UNDERWRITERS LABORATORIES (UL)

UL 1479 (2015) Fire Tests of Through-Penetration Firestops

UL 2079 (2004; Reprint Dec 2014) Tests for Fire

Resistance of Building Joint Systems

UL 723 (2008; Reprint Aug 2013) Test for Surface Burning Characteristics of Building

UL Fire Resistance (2014) Fire Resistance Directory

1.3 SEQUENCING

Coordinate the specified work with other trades. Apply fire-stopping materials, at penetrations of pipes and ducts, prior to insulating, unless insulation meets requirements specified for fire-stopping. Apply fire-stopping materials. A t building joints and construction gaps, prior to completion of enclosing walls or assemblies. Cast-in-place firestop devices shall be located and installed in place before concrete placement.

Pipe, conduit or cable bundles shall be installed through cast-in-place device after concrete placement but before area is concealed or made inaccessible. Firestop material shall be inspected and approved prior to final completion and enclosing of any assemblies that may conceal installed firestop .

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1.4 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00, SUBM ITTAL PROCEDURES:

SD-02 Shop Drawings

Fire-stopping System ; G

SD-03 Product Data

Fire-stopping Materials; G

SD-06 Test Reports

Inspection; G

SD-07 Certificates

Inspector Qualifications Fire-stopping Materials Installer Qualifications; G

1.5 QUALITY ASSURANCE

1.5.1 Installer

Engage an experienced Installer who is:

a. FM Research approved in accordance with FM 4991, operating as a UL Certified Firestop Contractor, or

b. Certified, licensed, or otherwise qualified by the fire-stopping manufacturer as having the necessary staff, training, and a minimum of 3 year’s experience in the installation of manufacturer's products in accordance with specified requirements . Submit documentation of this experience. A manufacturer's willingness to sell its fire-stopping products to the Contractor or to an installer engaged by the Contractor does not in itself confer installer qualifications on the buyer. The Installer shall have been trained by a direct representative of the manufacturer (not distributor or agent) in the proper selection and installation procedures. The installer shall obtain from the manufacturer and submit written certification of training, and retain proof of certification for duration of firestop installation .

1.5.2 Inspector Qualifications

The inspector shall have a minimum of two year’s experience in construction field inspections of fire-stopping systems, products, and assemblies. The inspector shall be completely independent of, and divested from, the installer, the manufacturer, and the supplier of any material or item being inspected. The inspector shall not be a competitor of the installer, the contractor, the manufacturer, or supplier of any material or item being inspected. Include in the qualifications submittal a notarized statement assuring compliance with the requirements stated herein.

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1.6 DELIVERY, STORAGE, AND HANDLING

Deliver materials in the original unopened packages or containers showing name of the manufacturer and the brand name. Store materials off the ground, protected from damage and exposure to elements and temperatures in accordance with manufacturer requirements. Remove damaged or deteriorated materials from the site. Use materials within their indicated shelf life.

PART 2 PRODUCTS

2 .1 FIRE-STOPPING SYSTEM

Submit detail drawings including manufacturer's descriptive data, typical details conforming to UL Fire Resistance or other details certified by another nationally recognized testing laboratory, installation instructions or UL listing details for a fire-stopping assembly in lieu of fire-test data or report. For those firestop applications for which no UL tested system is available through a manufacturer, a manufacturer's engineering judgment, derived from similar UL system designs or other tests, shall be submitted for review and approval prior to installation. Submittal must indicate the fire-stopping material to be provided for each type of application. When more than a total of 5 penetrations and/or construction joints are to receive fire-stopping, provide drawings that indicate location, "F" "T" and "L" ratings, and type of application .

Also, submit a written report indicating locations of and types of penetrations and types of fire-stopping used at each location; record type by UL list printed numbers.

2 .2 FIRESTOPPING MATERIALS

Provide fire-stopping materials, supplied from a single domestic manufacturer, consisting of commercially manufactured, asbestos-free, nontoxic products FM APP GUIDE approved, or UL listed, for use with applicable construction and penetrating items, complying with the following minimum requirements:

2 .2.1 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 E84 or UL 723.

Material shall be an approved fire-stopping material as listed in UL Fire Resistance or by a nationally recognized testing laboratory.

2 .2.2 Toxicity

Material shall be nontoxic and carcinogen free to humans at all stages of application or during fire conditions and shall not contain hazardous chemicals or require harmful chemicals to clean material or equipment.

2 .2.3 Fire Resistance Rating

Firestop systems shall be UL Fire Resistance listed or FM APP GUIDE approved with "F" rating at least equal to fire-rating of fire wall or floor in which penetrated openings are to be protected. Where required, firestop systems shall also have "T" rating at least equal to the fire-rated floor in which the openings are to be protected .

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2 .2.3.1 Through-Penetrations

Fire-stopping materials for through-penetrations, as described in paragraph SYSTEM DESCRIPTION, shall provide "F", "T" and "L" fire resistance ratings in accordance with ASTM E814 or UL 1479. Fire resistance ratings shall be as follows:

2 .2.3.1.1 Penetrations of Fire Resistance Rated Walls and Partitions

F Rating = Rating of wall or partition being penetrated.

2 .2.3.1.2 Penetrations of Fire Resistance Rated Floors, Floor-Ceiling Assemblies and the Ceiling Membrane of Roof-Ceiling Assemblies.

Where the penetrating item is outside of a wall cavity the F rating must equal to the fire resistance rating of the floor penetrated, and the T rating shall be in accordance with the requirements of ICC IBC.

2 .2.3.1.3 Penetrations of Fire and Smoke Resistance Rated Walls, Floors, Floor-Ceiling Assemblies, and the ceiling membrane of Roof-Ceiling Assemblies

F Rating = 1 hour

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2 .2.3.2 Construction Joints and Gaps

Fire resistance ratings of construction joints, as described in paragraph SYSTEM DESCRIPTION, and gaps such as those between floor slabs and curtain walls shall be the same as the construction in which they occur.

Construction joints and gaps shall be provided with fire-stopping materials and systems that have been tested in accordance with ASTM E119, ASTM E1966 or UL 2079 to meet the required fire resistance rating.

Curtain wall joints shall be provided with fire-stopping materials and systems that have been tested in accordance with ASTM E2307 to meet the required fire resistance rating. Systems installed at construction joints shall meet the cycling requirements of ASTM E1399/E1399M or UL 2079. All joints at the intersection of the top of a fire resistance rated wall and the underside of a fire-rated floor, floor ceiling, or roof ceiling assembly shall provide a minimum class II movement capability.

2 .2.4 Material Certification

Submit certificates attesting that fire-stopping material complies with the specified requirements. For all intumescent firestop materials used in through penetration systems, manufacturer shall provide certification of compliance with UL 1479.

PART 3 EXECUTION

3.1 PREPARATION

Areas to receive fire-stopping must be free of dirt, grease, oil, or loose materials which may affect the fitting or fire resistance of the fire-stopping system. For cast-in-place firestop devices, formwork or metal deck to receive device prior to concrete placement must be sound and capable of supporting device . Prepare surfaces as recommended by the manufacturer.

3.2 INSTALLATION

Completely fill void spaces with fire-stopping material regardless of geometric configuration, subject to tolerance established by the manufacturer. Fire-stopping systems for filling floor voids 100 mm 4 inches or more in any direction must be capable of supporting the same load as the floor is designed to support or be protected by a permanent barrier to prevent loading or traffic in the fire-stopped area . Install fire-stopping in accordance with manufacturer's written instructions. Provide tested and listed firestop systems in the following locations, except in floor slabs on grade :

a. Penetrations of duct, conduit, tubing, cable and pipe through floors and through fire-resistance rated walls, partitions, and ceiling-floor assemblies.

b. Penetrations of vertical shafts such as pipe chases, elevator shafts, and utility chutes.

c. Gaps at the intersection of floor slabs and curtain walls, including inside of hollow curtain walls at the floor slab.

d. Gaps at perimeter of fire-resistance rated walls and partitions, such as between the top of the walls and the bottom of roof decks.

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e. Construction joints in floors and fire rated walls and partitions.

f. Other locations where required to maintain fire resistance rating of the construction.

3.2.l Insulated Pipes and Ducts

Thermal insulation shall be cut and removed where pipes or ducts pass through fire-stopping, unless insulation meets requirements specified for fire-stopping . Replace thermal insulation with a material having equal thermal insulating and fire-stopping characteristics.

3.2.2 Fire Dampers

Install and firestop fire dampers in accordance with Section 23 00 00 AIR SUPPLY, DISTRIBUTION, VENTILATION, AND EXHAUST SYSTEM. Firestop installed with fire damper must be tested and approved for use in fire damper system . Firestop installed with fire damper must be tested and approved for use in fire damper system.

3.2.3 Data and Communication Cabling

Cabling for data and communication applications shall be sealed with re-enterable fire-stopping products and devices as indicated .

3.2.3.l Re-Enterable Devices

Fire-stopping devices shall be pre-manufactured modular devices, containing built-in self-sealing intumescent inserts. Fire-stopping devices shall allow for cable moves, additions or changes without the need to remove or replace any firestop materials. Devices must be capable of maintaining the fire resistance rating of the penetrated membrane at 0 percent to 100 percent visual fill of penetrants ; while maintaining "L" rating of <10 cfm/sf [measured at ambient temperature and 205 degrees C 400 degrees F] at 0 percent to 100 percent visual fill.

3.2.3.2 Re-Sealable Products

Provide fire-stopping pre-manufactured modular products, containing self-sealing intumescent inserts . Fire-stopping products shall allow for cable moves, additions or changes . Devices shall be capable of maintaining the fire resistance rating of the penetrated membrane at 0 percent to 100 percent visual fill of penetrants.

3.3 INSPECTION

For all projects, the fire-stopped areas shall not be covered or enclosed until inspection is complete and approved by the Fort Benning Fire Prevention Inspectors and the Contracting Officer. The inspector must inspect the applications initially to ensure adequate preparations (clean surfaces suitable for application, etc .) and periodically during the work to assure that the completed work has been accomplished according to the manufacturer's written instructions and the specified requirements .

Submit written reports indicating locations of and types of penetrations and types of fire-stopping used at each location; type shall be recorded by UL listed printed numbers.

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3.3.1 Inspection Standards

Inspect all fire-stopping in accordance to ASTM E2393 and ASTM E2174 for firestop inspection, and document inspection results to be submitted.

3.3.2 Inspection Reports

Submit inspection report stating that fire-stopping work has been inspected and found to be applied according to the manufacturer's recommendations and the specified requirements.