36E77619R0011-0007001.pdf

Milwaukee VAMC 03-11-2019 695-404 Construct New Radiation Oncology Suite Fin al Construction Documents Milwaukee, WI 53295 10-01-2017

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SECTION 07 81 00

APPLIED FIREPROOFING

PART 1 - GENERAL

1.1 DESCRIPTION:

A. This section specifies spray-applied mineral fib er and cementitious coverings to provide fire resistance to interior st ructural steel members shown.

1.2 RELATED WORK:

A. Sustainable Design Requirements: Section 01 81 1 3, SUSTAINABLE

CONSTRUCTION REQUIREMENTS.

1.3 SUBMITTALS:

A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT

DATA, AND SAMPLES.

B. Sustainable Design Submittals, as described belo w:

1. Volatile organic compounds per volume as specifi ed in PART

2 - PRODUCTS.

C. Installer qualifications.

D. Testing laboratory accreditations.

E. Manufacturer's Literature and Data:

1. Manufacturer's complete and detailed application instructions and specifications.

2. Manufacturer's repair and patching instructions.

F. Certificates:

1. Certificate from testing laboratory attesting fi reproofing material and application method meet the specified fire rati ngs.

a. List thickness and density of material required to meet fire ratings.

b. Accompanied by complete test report and test rec ord.

2. Manufacturer's certificate indicating sprayed-on fireproofing material supplied under the Contract is same within manufacturing tolerance as fireproofing material tested.

G. Miscellaneous:

1. Manufacturer's written approval of surfaces to r eceive sprayed-on fireproofing.

2. Manufacturer's written approval of completed ins tallation.

3. Manufacturer's written approval of the applicato rs of fireproofing material.

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1.3 PRODUCT DELIVERY, STORAGE AND HANDLING:

A. Deliver to job-site in sealed containers marked and labeled to show manufacturer's name and brand and UL certification markings of compliance with the specified requirements.

B. Remove damaged or opened containers from the sit e.

C. Store the materials off the ground, under cover, away from damp surfaces.

D. Keep dry until ready for use.

E. Remove materials that have been exposed to water before installation from the site.

1.4 FIELD CONDITIONS:

A. Temperature: Do not apply fireproofing when subs trate or ambient temperature is below 4 degrees C (40 degrees F) unl ess temporary protection and heat are provided to maintain temper ature at or above stated value during application and for 24 hours be fore and after application.

B. Humidity: Maintain relative humidity levels with in limits recommended by fireproofing manufacturer.

C. Ventilation: Provide ventilation to properly dry the fireproofing after application. Provide a minimum of four (4) air exch anges per hour by forced air circulation. When permitted by Contracti ng Officer

Representative (COR), ventilate by natural circulat ion.

1.5 QUALITY ASSURANCE:

A. Installer Qualifications: A firm or individual c ertified, licensed, or otherwise qualified by fireproofing manufacturer as experienced and with sufficient trained staff to install manufactur er’s products according to specified requirements. Submit manufac turer’s certification that each installer is trained and qu alified to install the specified fireproofing. Submit evidence that ea ch installer has a minimum of three (3) years’ experience and a minimu m of four (4) installations using the specified fireproofing.

B. Testing Laboratory Accreditation Requirements: C onstruction materials testing laboratories must be accredited by a labora tory accreditation authority. Submit a copy of the Certificate of Accr editation and Scope of Accreditation.

C. Test for fire endurance in accordance with ASTM E119, for fire rating specified, in a nationally recognized laboratory.

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D. Manufacturer's inspection and approval of surfac es to receive fireproofing.

E. Manufacturer's approval of fireproofing applicat ions.

F. Manufacturer's approval of completed installatio n.

G. Manufacturer's representative is to observe and advise at the commencement of application, and is required to vis it the site as required thereafter for the purpose of ascertaining proper application.

H. Pre-Application Test Area.

1. Apply a test area consisting of a typical overhe ad fireproofing installation, including not less than 4.5 m (15 fee t) of beam and deck.

a. Apply to one (1) column.

b. Apply for the hourly ratings required in the con struction documents.

2. Install in location selected by the COR, for app roval by the representative of the fireproofing material manufac turer and the

COR.

3. Perform Bond test for cohesive and adhesive stre ngth in accordance with ASTM E736 for each applied fireproofing design used.

4. Perform density test in accordance with ASTM E73 6 for each applied fireproofing design used.

5. Do not proceed in other areas until installation of test area has been completed and approved.

6. Keep approved installation area open for observa tion as criteria for sprayed-on fireproofing.

1.6 APPLICABLE PUBLICATIONS

A. Publications listed below form a part of this sp ecification to the extent referenced. Publications are referenced in t he text by the basic designation only.

B. ASTM International (ASTM):

C841-03(R2013)..........Installation of Interior La thing and Furring

C847-14.................Metal Lath

E84-14..................Surface Burning Characteris tics of Building

Materials

E119-12a................Fire Tests of Building Cons truction and

Materials

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E605-93(R2011)..........Thickness and Density of Sp rayed Fire-Resistive

Materials Applied to Structural Members

E736-00(R2011)..........Cohesion/Adhesion of Spraye d Fire-Resistive

Materials Applied to Structural Members

E759-92(R2011)..........The Effect of Deflection on Sprayed Fire-

Resistive Material Applied to Structural

Members

E760-92(R2011)..........Impact on Bonding of Spraye d Fire-Resistive

Material Applied to Structural Members

E761-92(R2011)..........Compressive Strength of Fir e-Resistive Material

Applied to Structural Members

E859-93(R2011)..........Air Erosion of Sprayed Fire -Resistive Materials

Applied to Structural Members

E937-93(R2011)..........Corrosion of Steel by Spray ed Fire-Resistive

Material Applied to Structural Members

E1042-02(R2014).........Acoustically, Absorptive Ma terials Applied by

Trowel or Spray.

G21-13..................Determining Resistance of S ynthetic Polymeric

Materials to Fungi

C. Underwriters Laboratories, Inc. (UL):

Fire Resistance Directory...Latest Edition includin g Supplements

D. Warnock Hersey (WH):

Certification Listings..Latest Edition

E. Factory Mutual System (FM):

Approval Guide..........Latest Edition including Su pplements

F. Environmental Protection Agency (EPA):

40 CFR 59(2014).........National Volatile Organic C ompound Emission

Standards for Consumer and Commercial Products

PART 2 - PRODUCTS

2.1 SPRAYED-ON FIREPROOFING:

A. ASTM E1042, Class (a), Category A.

1. Type I, factory mixed cementitious materials wit h approved aggregate.

2. Type II, factory mixed mineral fiber with integr al inorganic binders minimum 240 kg per cubic meter (15 lb. per cubic fe et) density per

ASTM E605 test unless specified otherwise. Use in a reas that are completely encased.

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B. Materials containing asbestos are not permitted.

C. Fireproofing characteristics when applied in the thickness and density required to achieve the fire-rating specified.

Characteristic Test Results

1. Deflection ASTM E759 No cracking, spalling, or delamination when backing to which it is applied has a deflection up to 1/120 in 3 m (10 ft.)

2. Corrosion-Resistance ASTM E937 No promotion of c orrosion of steel.

3. Bond Impact ASTM E760 No cracking, spalling, or delamination.

4. Cohesion/Adhesion

(Bond Strength)

ASTM E736 Minimum cohesive/adhesive strength of 9.57 kPa (200 lbf per

sq. ft.) for protected areas.

19.15 kPa (400 lbf per sq. ft.)

for exposed areas.

5. Air Erosion ASTM E859 Maximum gain weight of the collecting filter

0.27 gm per sq. meter (0.025 gm per sq. ft.).

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6. Compressive Strength ASTM E761 Minimum compressi ve strength 48 kPa (1000 psf).

7. Surface Burning Characteristics with adhesive and sealer to be used

ASTM E84 Flame spread 25 or less smoke developed 50 or less

8. Fungi Resistance ASTM G21 Resistance to mold gro wth when inoculated with aspergillus niger (28 days for general application)

2.2 ADHESIVE:

A. Bonding adhesive for Type II (fibrous) materials as recommended and supplied by the fireproofing material manufacturer.

B. Adhesive may be an integral part of the material or applied separately to surface receiving fireproofing material.

2.3 SEALER:

A. Sealer for Type II (fibrous) material as recomme nded and supplied by the fireproofing material manufacturer.

B. Surface burning characteristics as specified for fireproofing material.

C. Fungus resistant.

D. Sealer may be an integral part of the material o r applied separately to the exposed surface. When applied separately use co ntrasting color pigmented sealer, white preferred.

E. VOC content: Product to comply with VOC content limits of authorities having jurisdiction and the following VOC limits wh en calculated according to 40 CFR 59, (EPA Method 24):

1. Flat Paints and Coatings: 50 g/L.

2. Nonflat Paints and Coatings: 150 g/L.

3. Primers, Sealers, and Undercoaters: 200 g/L.

2.4 WATER:

A. Clean, fresh, and free from organic and mineral impurities.

B. pH of 6.9 to 7.1.

PART 3 - EXECUTION

3.1 EXAMINATION:

A. Verify surfaces to receive fireproofing are clea n and free of dust, soot, oil, grease, water soluble materials or any f oreign substance which would prevent adhesion of the fireproofing ma terial.

B. Verify hangers, inserts and clips are installed before the application of fireproofing material.

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C. Verify ductwork, piping, and other obstructing m aterial and equipment is not installed that will interfere with fireproof ing installation.

D. Verify concrete work on steel decking and concre te encased steel is completed.

E. When applied in conjunction with roof structures or roof decks, verify that roofing, installation of rooftop HVAC equipmen t, and other related work are complete.

F. Verify temperature and enclosure conditions requ ired by fire-proofing material manufacturer.

G. Conduct tests according to fireproofing manufact urer’s written instructions to verify that substrates are free of substances capable of interfering with bond. Submit test report.

3.2 APPLICATION:

A. Do not start application until written approval has been obtained from manufacturer of fireproofing materials that surface s have been inspected by the manufacturer or his representative , and are suitable to receive sprayed-on fireproofing.

B. Coordinate application of fireproofing material with other trades.

C. Cover other work and exterior openings subject t o damage from fallout or overspray of fireproofing materials during appli cation.

D. Mix and apply in accordance with manufacturer's instructions.

1. Mechanically control material and water ratios.

2. Apply adhesive and sealer, when not an integral part of the materials, in accordance with the manufacturer's in structions.

3. Apply to density and thickness indicated in UL F ire Resistance

Directory, FM Approval Guide, or WH Certification L istings unless specified otherwise. Test in accordance with ASTM E 119.

4. Minimum ASTM E605 applied dry density per cubic meter (cubic foot) for the underside of the walk on deck (interstitial ) hung purlin or beam and steel deck, columns in interstitial spaces and mechanical equipment rooms to be as follows:

a. Type II - 240 kg per cubic meter (15 lb. per cub ic ft.).

E. Complete application is to be completed in one a rea. Inspection and approval by COR is required before removal of appli cation equipment and proceeding with further work.

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3.3 FIELD TESTS:

A. The applied fireproofing to be tested by a COR a pproved independent testing laboratory and paid for by the Contractor. Submit test reports documenting results of tests on the applied materia l in the project.

B. COR will select area to be tested in specific ba ys on each floor using a geometric grid pattern. Apply test sample every 9 29 square meters

(10,000 square feet) of floor area or two (2) for e ach floor, whichever produces the greatest number of test areas.

C. Test for thickness and density in accordance wit h ASTM E605. Areas showing thickness less than that required as a resu lt of fire endurance test are not acceptable.

D. Areas showing less than required fireproofing ch aracteristics are not suitable for the following field tests.

1. Test for cohesion/adhesion: ASTM E736.

2. Test for bond impact strength: ASTM E760.

3.4 PATCHING AND REPAIRING:

A. Inspect after mechanical, electrical and other t rades have completed work in contact with fireproofing material, but bef ore sprayed material is covered by subsequent construction.

B. Perform corrective measures in accordance with f ireproofing material manufacturer's recommendations.

1. Respray areas requiring additional fireproofing material to provide the required thickness, and replace dislodged or re moved material.

2. Spray material for patching by machine directly on point to be patched, or into a container and then hand apply.

3. Do not hand mix material.

C. Repair:

1. Respray test and rejected areas.

2. Patch fireproofing material which is removed or disturbed after approval.

D. Perform final inspection of sprayed areas after patching and repair.

3.6 SCHEDULE:

A. Apply fireproofing material in interior structur al steel members and on underside of interior steel floor and roof decks, e xcept on following surfaces:

1. Structural steel and underside of steel decks in elevator or dumbwaiter machine rooms.

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2. Steel members in elevator hoist ways.

3. Areas used as air handling plenums.

4. Steel to be encased in concrete or designated to receive other type of fireproofing.

Fire Rating Schedule

Type Element Hourly Rating UL Design Reference

II Columns supporting roof 1 HR – SEE CODE

ANALYSIS

II Roof decks 1 HR – SEE CODE

II Roof supports 1 HR – SEE CODE

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