Amendment 10 Revised Specs -078413_Firestopping.pdf

24/7 HVAC System Design – GOLD SYSTEM ONLY Federal Building, 11000 Wilshire Blvd.

Los Angeles, CA

SPECIFICATIONS

078413 PENETRATION FIRESTOPPING Page 1 of 6 SENSITIVE BUT UNCLASSIFIED (SBU) PROPERTY OF THE UNITED STATES GOVERNMENT FOR OFFICIAL USE ONLY.

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SECTION 078413 - PENETRATION FIRESTOPPING

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Penetrations in fire-resistance-rated walls.

1.2 ACTION SUBMITTALS

A. Product Data: For each type of product indicated.

B. Product Schedule: For each penetration firestopping system. Include location and design designation of qualified testing and inspecting agency.

1. Where Project conditions require modification to a qualified testing and inspecting agency's illustration for a particular penetration firestopping condition, submit illus-tration, with modifications marked, approved by penetration firestopping manufac-turer's fire-protection engineer as an engineering judgment or equivalent fire-resistance-rated assembly.

1.3 INFORMATIONAL SUBMITTALS

A. Qualification Data: For qualified Installer.

B. Installer Certificates: From Installer indicating penetration firestopping has been installed in compliance with requirements and manufacturer's written recommendations.

C. Product Test Reports: Based on evaluation of comprehensive tests performed by a quali-fied testing agency, for penetration firestopping.

1.4 QUALITY ASSURANCE

A. Installer Qualifications: A firm experienced in installing penetration firestopping similar in material, design, and extent to that indicated for this Project, whose work has resulted in construction with a record of successful performance. Qualifications include having the necessary experience, staff, and training to install manufacturer's products per specified requirements. Manufacturer's willingness to sell its penetration firestopping products to Contractor or to Installer engaged by Contractor does not in itself confer qualification on buyer.

B. Fire-Test-Response Characteristics: Penetration firestopping shall comply with the follow-ing requirements:

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SPECIFICATIONS

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5/19/2023

078413 PENETRATION FIRESTOPPING Page 2 of 6 SENSITIVE BUT UNCLASSIFIED (SBU) PROPERTY OF THE UNITED STATES GOVERNMENT FOR OFFICIAL USE ONLY.

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1. Penetration firestopping is identical to those tested per testing standard referenced in "Penetration Firestopping" Article. Provide rated systems complying with the fol-lowing requirements:

a. Classification markings on penetration firestopping correspond to designa-tions listed by the following:

1) UL in its "Fire Resistance Directory."

1.5 PROJECT CONDITIONS

A. Environmental Limitations: Do not install penetration firestopping when ambient or sub-strate temperatures are outside limits permitted by penetration firestopping manufacturers or when substrates are wet because of rain, frost, condensation, or other causes.

B. Install and cure penetration firestopping per manufacturer's written instructions using nat-ural means of ventilations or, where this is inadequate, forced-air circulation.

1.6 COORDINATION

A. Coordinate construction of openings and penetrating items to ensure that penetration fire-stopping is installed according to specified requirements.

B. Coordinate sizing of sleeves, openings, core-drilled holes, or cut openings to accommo-date penetration firestopping.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. Grace Construction Products.

2. Hilti, Inc.

3. Johns Manville.

4. Nelson Firestop Products.

5. NUCO Inc.

6. Passive Fire Protection Partners.

7. RectorSeal Corporation.

8. Specified Technologies Inc.

9. 3M Fire Protection Products.

10. Tremco, Inc.; Tremco Fire Protection Systems Group.

11. USG Corporation.

2.2 PENETRATION FIRESTOPPING

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SPECIFICATIONS

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A. Provide penetration firestopping that is produced and installed to resist spread of fire ac-cording to requirements indicated, resist passage of smoke and other gases, and maintain original fire-resistance rating of construction penetrated. Penetration firestopping systems shall be compatible with one another, with the substrates forming openings, and with penetrating items if any.

B. Penetrations in Fire-Resistance-Rated Walls: Provide penetration firestopping with ratings determined per ASTM E 814 or UL 1479, based on testing at a positive pressure differen-tial of 0.01-inch wg (2.49 Pa).

1. Fire-resistance-rated walls as indicated on the drawings.

2. F-Rating: Not less than the fire-resistance rating of constructions penetrated.

C. VOC Content: Penetration firestopping sealants and sealant primers shall comply with the following limits for VOC content when calculated according to 40 CFR 59, Subpart D (EPA Method 24):

1. Sealants: 250 g/L.

2. Sealant Primers for Nonporous Substrates: 250 g/L.

3. Sealant Primers for Porous Substrates: 775 g/L.

D. Low-Emitting Materials: Penetration firestopping sealants and sealant primers shall comply with the testing and product requirements of the California Department of Health Ser-vices' "Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers."

E. Accessories: Provide components for each penetration firestopping system that are needed to install fill materials and to maintain ratings required. Use only those components speci-fied by penetration firestopping manufacturer and approved by qualified testing and in-specting agency for firestopping indicated.

1. Permanent forming/damming/backing materials, including the following:

a. Slag-wool-fiber or rock-wool-fiber insulation.

b. Sealants used in combination with other forming/damming/backing materials to prevent leakage of fill materials in liquid state.

c. Fire-rated form board.

d. Fillers for sealants.

2. Temporary forming materials.

3. Substrate primers.

4. Collars.

5. Steel sleeves.

2.3 FILL MATERIALS

A. Latex Sealants: Single-component latex formulations that do not re-emulsify after cure dur-ing exposure to moisture.

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B. Firestop Devices: Factory-assembled collars formed from galvanized steel and lined with intumescent material sized to fit specific diameter of penetrant.

C. Intumescent Composite Sheets: Rigid panels consisting of aluminum-foil-faced elastomer-ic sheet bonded to galvanized-steel sheet.

D. Intumescent Putties: Nonhardening dielectric, water-resistant putties containing no sol-vents, inorganic fibers, or silicone compounds.

E. Intumescent Wrap Strips: Single-component intumescent elastomeric sheets with alumi-num foil on one side.

F. Pillows/Bags: Reusable heat-expanding pillows/bags consisting of glass-fiber cloth cases filled with a combination of mineral-fiber, water-insoluble expansion agents, and fire-retardant additives. Where exposed, cover openings with steel-reinforcing wire mesh to protect pillows/bags from being easily removed.

G. Silicone Foams: Multicomponent, silicone-based liquid elastomers that, when mixed, ex-pand and cure in place to produce a flexible, nonshrinking foam.

2.4 MIXING

A. For those products requiring mixing before application, comply with penetration firestop-ping manufacturer's written instructions for accurate proportioning of materials, water (if required), type of mixing equipment, selection of mixer speeds, mixing containers, mixing time, and other items or procedures needed to produce products of uniform quality with optimum performance characteristics for application indicated.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates and conditions, with Installer present, for compliance with require-ments for opening configurations, penetrating items, substrates, and other conditions af-fecting performance of the Work.

B. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Surface Cleaning: Clean out openings immediately before installing penetration firestop-ping to comply with manufacturer's written instructions and with the following require-ments:

1. Remove from surfaces of opening substrates and from penetrating items foreign ma-terials that could interfere with adhesion of penetration firestopping.

2. Clean opening substrates and penetrating items to produce clean, sound surfaces

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capable of developing optimum bond with penetration firestopping. Remove loose particles remaining from cleaning operation.

3. Remove laitance and form-release agents from concrete.

B. Priming: Prime substrates where recommended in writing by manufacturer using that manufacturer's recommended products and methods. Confine primers to areas of bond;

do not allow spillage and migration onto exposed surfaces.

C. Masking Tape: Use masking tape to prevent penetration firestopping from contacting ad-joining surfaces that will remain exposed on completion of the Work and that would oth-erwise be permanently stained or damaged by such contact or by cleaning methods used to remove stains. Remove tape as soon as possible without disturbing firestopping's seal with substrates.

3.3 INSTALLATION

A. General: Install penetration firestopping to comply with manufacturer's written installation instructions and published drawings for products and applications indicated.

B. Install forming materials and other accessories of types required to support fill materials during their application and in the position needed to produce cross-sectional shapes and depths required to achieve fire ratings indicated.

1. After installing fill materials and allowing them to fully cure, remove combustible forming materials and other accessories not indicated as permanent components of firestopping.

C. Install Penetration Firestopping to match the fire rating of the wall or floor assembly through which the penetration occurs, according to Article 3.6, PENETRATION

FIRESTOPPING SCHEDULE.

D. Select the Penetration Firestopping assembly from Article 3.6 below as appropriate for the rating of the penetration and materials within the penetration. The Contractor shall inform the Contracting Officer of any condition not conforming to the assemblies shown in Arti-cle 3.6, PENETRATION FIRESTOPPING SCHEDULE.

E. Install fill materials for firestopping by proven techniques to produce the following results:

1. Fill voids and cavities formed by openings, forming materials, accessories, and pen-etrating items as required to achieve fire-resistance ratings indicated.

2. Apply materials so they contact and adhere to substrates formed by openings and penetrating items.

3. For fill materials that will remain exposed after completing the Work, finish to pro-duce smooth, uniform surfaces that are flush with adjoining finishes.

3.4 FIELD QUALITY CONTROL

A. Engage a qualified testing agency to perform tests and inspections.

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SPECIFICATIONS

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B. Where deficiencies are found or penetration firestopping is damaged or removed because of testing, repair or replace penetration firestopping to comply with requirements.

C. Proceed with enclosing penetration firestopping with other construction only after inspec-tion reports are issued and installations comply with requirements.

3.5 CLEANING AND PROTECTION

A. Clean off excess fill materials adjacent to openings as the Work progresses by methods and with cleaning materials that are approved in writing by penetration firestopping man-ufacturers and that do not damage materials in which openings occur.

B. Provide final protection and maintain conditions during and after installation that ensure that penetration firestopping is without damage or deterioration at time of Substantial Completion. If, despite such protection, damage or deterioration occurs, immediately cut out and remove damaged or deteriorated penetration firestopping and install new materi-als to produce systems complying with specified requirements.

3.6 PENETRATION FIRESTOPPING SCHEDULE

A. Firestopping with no penetrating Items:

1. System No. C-AJ-0140 (August 01, 2013)

B. Firestopping for metallic pipes, conduit, or tubing:

1. System No. C-AJ-1628 (August 01, 2013)

C. Firestopping for electrical cables:

1. System No. C-AJ-3321 (July 29, 2013)

D. Firestopping for Insulated pipes:

1. System No. C-AJ-5347 (August 01, 2013)

E. Firestopping for miscellaneous mechanical penetrants:

1. System No. C-AJ-4098 (August 01, 2013)

F. Multiple metallic penetrants through wall:

1. System No. W-L-1478 (August 20, 2013)

G. Multiple cables enclosed in steel sleeve through wall assembly:

1. System No. W-L-3347 (September 30, 2013)

END OF SECTION 078413