USACE / NAVFAC / AFCESA / NASA UFGS-07 84 00 (October 2007) ---------------------------- Preparing Activity: USACE Superseding UFGS-07 84 00 (April 2006) UNIFIED FACILITIES GUIDE SPECIFICATIONS References are in agreement with UMRL dated January 2009 SECTION 07 84 00 FIRESTOPPING 10/07 NOTE: This guide specification covers the requirements for firestopping using tested and listed firestop systems to form an effective barrier against the spread of fire, smoke and gases, and to maintain the integrity of fire resistance rated construction. Edit this guide specification for project specific requirements by adding, deleting, or revising text. For bracketed items, choose applicable items(s) or insert appropriate information. Remove information and requirements not required in respective project, whether or not brackets are present. Comments and suggestions on this guide specification are welcome and should be directed to the technical proponent of the specification. A listing of technical proponents, including their organization designation and telephone number, is on the Internet. Recommended changes to a UFGS should be submitted as a Criteria Change Request (CCR). PART 1 GENERAL 1.1 REFERENCES NOTE: This paragraph is used to list the publications cited in the text of the guide specification. The publications are referred to in the text by basic designation only and listed in this paragraph by organization, designation, date, and title. Use the Reference Wizard's Check Reference feature when you add a RID outside of the Section's Reference Article to automatically place the reference in the Reference Article. Also use the Reference Wizard's Check Reference feature to update the issue dates. References not used in the text will automatically be deleted from this section of the project specification when you choose to reconcile references in the publish print process. 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 E 119(2008a) Standard Test Methods for Fire Tests of Building Construction and MaterialsASTM E 1399(1997; R 2005) Cyclic Movement and Measuring the Minimum and Maximum Joint Widths of Architectural Joint SystemsASTM E 1966(2007) Fire-Resistive Joint SystemsASTM E 814(2008b) Standard Test Method for Fire Tests of Through-Penetration Fire StopsASTM E 84(2008a) Standard Test Method for Surface Burning Characteristics of Building MaterialsFM GLOBAL (FM)FM AS 4991(2001) Approval of Firestop ContractorsFM P7825a(2005) Approval Guide Fire ProtectionUNDERWRITERS LABORATORIES (UL)UL 1479(2003; Rev thru Dec 2008) Standard for Fire Tests of Through-Penetration Fire StopsUL 2079(2004; Mar 2006) Tests for Fire Resistance of Building Joint SystemsUL 723(2008) Standard for Test for Surface Burning Characteristics of Building MaterialsUL Fire Resistance(2008) Fire Resistance Directory1.2 SUBMITTALS NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit the following list to reflect only the submittals required for the project. Submittals should be kept to the minimum required for adequate quality control. A “G” following a submittal item indicates that the submittal requires Government approval. Some submittals are already marked with a “G”. Only delete an existing “G” if the submittal item is not complex and can be reviewed through the Contractor’s Quality Control system. Only add a “G” if the submittal is sufficiently important or complex in context of the project. For submittals requiring Government approval on Army projects, a code of up to three characters within the submittal tags may be used following the "G" designation to indicate the approving authority. Codes for Army projects using the Resident Management System (RMS) are: "AE" for Architect-Engineer; "DO" for District Office (Engineering Division or other organization in the District Office); "AO" for Area Office; "RO" for Resident Office; and "PO" for Project Office. Codes following the "G" typically are not used for Navy, Air Force, and NASA projects. Choose the first bracketed item for Navy, Air Force and NASA projects, or choose the second bracketed item for Army projects. Government approval is required for submittals with a "G" designation; submittals not having a "G" designation are for [Contractor Quality Control approval.] [information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government.] The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES: _{SD-02 Shop Drawings Firestopping Materials}. 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 firestopping 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 judgement, derived from similar UL system designs or other tests, shall be submitted for review and approval prior to installation. Submittal shall indicate the firestopping material to be provided for each type of application. When more than a total of 5 penetrations and/or construction joints are to receive firestopping, provide drawings that indicate location, "F" and "T" ratings, and type of application. _{SD-07 Certificates Firestopping Materials}. Certificates attesting that firestopping material complies with the specified requirements. In lieu of certificates, drawings showing UL classified materials as part of a tested assembly may be provided. Drawings showing evidence of testing by an alternate nationally recognized independent laboratory may be substituted. _{Installer Qualifications}. Documentation of training and experience. _Inspection. Manufacturer's representative certification stating that firestopping work has been inspected and found to be applied according to the manufacturer's recommendations and the specified requirements. 1.3 GENERAL REQUIREMENTS Firestopping shall consist of furnishing and installing tested and listed firestop 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. Through-penetrations include the annular space around pipes, tubes, conduit, wires, cables and vents. Construction joints include those used to accommodate expansion, contraction, wind, or seismic movement; firestopping material shall not interfere with the required movement of the joint. Gaps requiring firestopping 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. 1.4 DELIVERY AND STORAGE Materials shall be delivered in the original unopened packages or containers showing name of the manufacturer and the brand name. Materials shall be stored off the ground and shall be protected from damage and exposure to elements. Damaged or deteriorated materials shall be removed from the site. 1.5 _{INSTALLER QUALIFICATIONS} The Contractor shall engage an experienced Installer who is: a. FM Research approved in accordance with FM AS 4991, or b. Certified, licensed, or otherwise qualified by the firestopping manufacturer as having the necessary staff, training, and a minimum of 3 years experience in the installation of manufacturer's products in accordance with specified requirements. A manufacturer's willingness to sell its firestopping products to the Contractor or to an installer engaged by the Contractor does not in itself confer qualification 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. 1.6 COORDINATION NOTE: Edit this paragraph depending on whether existing insulation is to remain or be removed. The specified work shall be coordinated with other trades. Firestopping materials, at penetrations of pipes and ducts, shall be applied prior to insulating, unless insulation meets requirements specified for firestopping. Firestopping materials at building joints and construction gaps shall be applied 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. 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 Resistance 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 Resistance listed or FM P7825a approved with "F" rating at least equal to fire-rating of fire wall or floor in which penetrated 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 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. 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 Rating = [_____] hour, T Rating = [_____] hour. 2.1.3.2 Construction Joints and Gaps Fire resistance ratings of construction joints, as described in paragraph GENERAL REQUIREMENTS, and gaps such as those between floor slabs or roof decks and curtain walls shall be [the same as the construction in which they occur.] [as follows: construction joints in walls, [_____] hour; construction joints in floors, [_____] hour; gaps between floor slabs and curtain walls, [_____] hour; gaps between top of the walls and the bottom of roof and floor decks, [_____] hour.] Construction joints and gaps shall be provided with firestopping materials and systems that have been tested in accordance with ASTM E 119, ASTM E 1966 or UL 2079 to meet the required fire resistance rating. Systems installed at construction joints shall meet the cycling requirements of ASTM E 1399 or UL 2079. PART 3 EXECUTION 3.1 PREPARATION Areas to receive firestopping shall be free of dirt, grease, oil, or loose materials which may affect the fitting or fire resistance of the firestopping system. For cast-in-place firestop devices, formwork or metal deck to receive device prior to concrete placement shall be sound and capable of supporting device. Surfaces shall be prepared as recommended by the manufacturer. 3.2 INSTALLATION NOTE: Drawings must indicate location and fire ratings of all fire-rated walls, partitions, floors and ceilings; and details of firestopping for each type of construction. Firestopping material shall completely fill void spaces regardless of geometric configuration, subject to tolerance established by the manufacturer. Firestopping systems for filling floor voids 100 mm 4 inches or more in any direction shall be capable of supporting the same load as the floor is designed to support or shall be protected by a permanent barrier to prevent loading or traffic in the firestopped area. Firestopping shall be installed in accordance with manufacturer's written instructions. Tested and listed firestop systems shall be provided 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. e. Construction joints in floors and fire rated walls and partitions. f. Other locations where required to maintain fire resistance rating of the construction. 3.2.1 Insulated Pipes and Ducts NOTE: Coordinate insulation requirements with appropriate Sections. Thermal insulation shall be cut and removed where pipes or ducts pass through firestopping, unless insulation meets requirements specified for firestopping. Thermal insulation shall be replaced with a material having equal thermal insulating and firestopping characteristics. 3.2.2 Fire Dampers NOTE: When including this paragraph, ensure that the appropriate information is contained in Section 23 00 00 AIR SUPPLY, DISTRIBUTION, VENTILATION, AND EXHAUST SYSTEM. Fire dampers shall be installed and firestopped in accordance with Section 23 00 00 AIR SUPPLY, DISTRIBUTION, VENTILATION, AND EXHAUST SYSTEM. 3.2.3 Data and Communication Cabling NOTE: The designer shall add note to the electrical drawings stating: "Penetrations of fire-rated partitions, walls or floors by data and communication wiring or cable shall be through modular, re-enterable firestopping device(s) containing self-sealing intumescent inserts per Specification Section 07 84 00." Cabling for data and communication applications shall be sealed with re-enterable firestopping products that do not cure over time. Firestopping shall be modular devices, containing built-in self-sealing intumescent inserts. Firestopping devices shall allow for cable moves, adds or changes without the need to remove or replace any firestop materials. 3.3 _INSPECTION NOTE: For Army projects start at the third sentence and use the second bracketed statement after deleting the first bracketed statement; also, delete inspection by manufacturer's representative for small Army projects. For Navy projects use all bracketed statements. [For Navy projects, install one of each type of penetration and have it inspected and accepted by the [_____] Division, Naval Facilities Engineering Command, Fire Protection Engineer prior to the installation of the remainder of the penetrations. At this inspection, the manufacturer's technical representative of the firestopping material shall be present.] For all projects,[ the remainder of] [the firestopped areas] shall not be covered or enclosed until inspection is complete and approved by the manufacturer's technical representative. The manufacturer's representative shall 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. The Contractor shall submit written reports indicating locations of and types of penetrations and types of firestopping used at each location; type shall be recorded by UL listed printed numbers.