Section 09 51 00 Acoustical Ceiling.pdf

CONVERT B32, BAYS F-G FOR FITNESS CENTER W91236-19-R-0023

DEFENSE SUPPLY CENTER RICHMOND (DSCR)

SECTION 09 51 00

ACOUSTICAL CEILINGS

08/17

PART 1 GENERAL

1.1 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 A489 (2012) Standard Specification for Carbon Steel Lifting Eyes

ASTM A580/A580M (2018) Standard Specification for Stainless Steel Wire

ASTM C635/C635M (2017) Standard Specification for Manufacture, Performance, and Testing of Metal Suspension Systems for Acoustical Tile and Lay-In Panel Ceilings

ASTM C636/C636M (2013) Standard Practice for Installation of Metal Ceiling Suspension Systems for Acoustical Tile and Lay-In Panels

ASTM C834 (2017) Standard Specification for Latex Sealants

ASTM E1264 (2014) Acoustical Ceiling Products

ASTM E1414/E1414M (2011a; E 2014) Airborne Sound Attenuation Between Rooms Sharing a Common Ceiling Plenum

ASTM E1477 (1998a; R 2017) Standard Test Method for Luminous Reflectance Factor of Acoustical Materials by Use of Integrating-Sphere Reflectometers

ASTM E580/E580M (2017) Standard Practice for Installation of Ceiling Suspension Systems for Acoustical Tile and Lay-in Panels in Areas Subject to Earthquake Ground Motions

CALIFORNIA DEPARTMENT OF PUBLIC HEALTH (CDPH)

CDPH Standard Method v1.1 (2010; Version 1.1) Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources using Environmental Chambers

SECTION 09 51 00 Page 1

AMENDMENT 001

GREEN SEAL (GS)

GS-36 (2013) Adhesives for Commercial Use

SCIENTIFIC CERTIFICATION SYSTEMS (SCS)

SCS SCS Global Services (SCS) Indoor Advantage

SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT (SCAQMD)

SCAQMD Rule 1168 (2017) Adhesive and Sealant Applications

U.S. DEPARTMENT OF DEFENSE (DOD)

UFC 3-310-04 (2013; with Change 1, 2016) Seismic Design of Buildings

UNDERWRITERS LABORATORIES (UL)

UL 2818 (2013) GREENGUARD Certification Program For Chemical Emissions For Building Materials, Finishes And Furnishings

1.2 SUBMITTALS

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

submittals not having a "G" designation are for information only.Submittals with an "S" are for inclusion in the Sustainability eNotebook, in conformance to Section 01 33 29 SUSTAINABILITY REPORTING.

Submit the following in accordance with Section 01 33 00.00 50 SUBMITTAL

PROCEDURES:

SD-03 Product Data

Acoustical Ceiling Systems ; G

SD-04 Samples

Acoustical Ceiling Tiles ; G

SD-06 Test Reports

Ceiling Attenuation Class and Test ; G

SD-07 Certificates

Indoor Air Quality

SD-11 Closeout Submittals

Recycled Content for Type III Ceiling Tiles ; S

Recycled Content for Suspension Systems ; S Indoor Air Quality for Type III Ceiling Tiles Indoor Air Quality for Type IX Ceiling Tiles ; S Indoor Air Quality for Sealants ; S

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1.3 CERTIFICATIONS

1.3.1 Indoor Air Quality Certifications

1.3.1.1 Ceiling Tiles

Provide products certified to meet indoor air quality requirements by UL 2818 (Greenguard) Gold, SCS Global Services Indoor Advantage Gold or provide certification or validation by other third-party programs that products meet the requirements of CDPH Standard Method v1.1 . Provide current product certification documentation from certification body.

1.3.1.2 Adhesives and Sealants

Provide products certified to meet indoor air quality requirements by UL 2818 (Greenguard) Gold, SCS Global Services Indoor Advantage Gold or provide certification or validation by other third-party programs that products meet the requirements of CDPH Standard Method v1.1 . Provide current product certification documentation from certification body. All adhesives and sealants wet-applied on site must also meet the applicable chemical content requirements of SCAQMD Rule 1168 .

1.4 DELIVERY, STORAGE. AND HANDLING

Deliver materials to the site in the manufacturer's original unopened containers with brand name and type clearly marked. Carefully handle and store materials in dry, watertight enclosures. Immediately before installation, store acoustical units for not less than 24 hours at the same temperature and relative humidity as the space where they will be installed in order to assure proper temperature and moisture acclimation.

1.5 ENVIRONMENTAL REQUIREMENTS

Maintain a uniform temperature of not less than 60 degrees F nor more than 85 degrees F and a relative humidity of not more than 70 percent for 24 hours before, during, and 24 hours after installation of acoustical units.

1.6 SCHEDULING

Complete and dry interior finish work such as plastering, concrete and terrazzo work before ceiling installation. Complete mechanical, electrical, and other work above the ceiling line; install and start operating heating, ventilating, and air conditioning systems in order to maintain temperature and humidity requirements.

1.7 WARRANTY

Provide manufacturer's standard performance guarantees or warranties that extend beyond a one year period. Include an agreement to repair or replace acoustical panels that fail within the warranty period in the standard performance guarantee or warranty. Failures include, but are not limited to, sagging and warping of panels; rusting and manufacturers defects of grid system.

1.8 EXTRA MATERIALS

Furnish spare tiles, from the same lot as those installed, of each color at the rate of 10 percent tiles for each type of tile installed.

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1.9 OTHER SUBMITTAL REQUIREMENTS

Submit the following:

a. Reports by an independent testing laboratory attesting that acoustical ceiling systems meet specified sound transmission requirements. Data attesting to conformance of the proposed system to Underwriters Laboratories requirements for the fire endurance rating listed in UL Fire Resistance may be submitted in lieu of test reports.

PART 2 PRODUCTS

2.1 SYSTEM DESCRIPTION

Provide sound controlling units mechanically mounted on a ceiling suspension system for acoustical treatment. The unit size, texture, finish, and color must be as specified. Coordinate the whole ceiling system with other details, like the location of access panels and ceiling penetrations, etc., shown on the drawings. The Contractor is responsible for all associated labor and materials and for the final assembly and performance of the specified work and products. The location and extent of acoustical treatment must be as shown on the approved drawings. Submit drawings showing suspension system, method of anchoring and fastening, details, and reflected ceiling plan. Coordinate with paragraph RECLAMATION PROCEDURES for reclamation of mineral fiber acoustical ceiling panels to be removed from the job site.

2.1.1 Ceiling Attenuation Class and Test

Provide a ceiling system with an attenuation class (CAC) of 35 for ACT 1 and 33 for FRP1 when determined in accordance with ASTM E1414/E1414M .

Provide fixture attenuators over light fixtures and other ceiling penetrations, and provide acoustical blanket insulation adjacent to partitions, as required to achieve the specified CAC. Provide test ceiling continuous at the partition and assembled in the suspension system in the same manner that the ceiling will be installed on the project.

2.1.2 Ceiling Sound Absorption

Determine the Noise Reduction Coefficient (NRC) in accordance with ASTM C423 Test Method.

2.1.3 Light Reflectance

Determine light reflectance factor in accordance with ASTM E1477 Test Method.

2.2 ACOUSTICAL UNITS

Submit two samples of each type of acoustical unit and each type of suspension grid tee section showing texture, finish, and color. Conform acoustical units to ASTM E1264, Class A, and the following requirements:

2.2.1 Units for Exposed-Grid System ACT 1

2.2.1.1 Type

Basis of Design:

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Armstrong Cirrus Angled Tegular #556 High NRC; 24 inch by 24 inch by 15/16 inch .

Substitutions are not permitted without prior approval of Contacting officer.

Type III (non-asbestos mineral fiber with painted finish). Provide Type III Acoustical Ceiling Tiles containing a minimum of 70 percent recycled content. Provide data identifying percentage of recycled content for Type III ceiling tiles . Provide certification of indoor air quality for Type III Ceiling Tiles .

2.2.1.2 Flame Spread

Class A, 25 or less

2.2.1.3 Pattern

E.

2.2.1.4 Minimum NRC

0.75.

2.2.1.5 Minimum Light Reflectance Coefficient

80%.

2.2.1.6 Nominal Size

24 by 24 inch by 15/16 inch thick .

2.2.1.7 Edge Detail

Angled tegular.

2.2.1.8 Finish

Factory-applied white finish.

2.2.1.9 Minimum CAC

35.

2.2.2 Units for Exposed-Grid System FRPI

Basis of Design:

Armstrong Georgian High Washability #794 Square edge 24 inch x 24 inch by 5/8 inch.

Substitutions are not permitted without prior approval of Contacting officer.

2.2.2.1 Type

IX (mineral fiber with scrubbable finish). Provide with a minimum of 50 percent recycled content and data identifying this. Provide certification

SECTION 09 51 00 Page 5 of indoor air quality for Type IX Ceiling Tiles .

2.2.2.2 Flame Spread

Class A, 25 or less

2.2.2.3 Pattern

G.

2.2.2.4 Minimum NRC

.70.

2.2.2.5 Minimum Light Reflectance

85 percent .

2.2.2.6 Nominal Size

24 by 24 inch by 5/8 inch

2.2.2.7 Edge Detail

Square.

2.2.2.8 Finish

Factory-applied white

2.2.2.9 Minimum CAC

33.

Amendment 001****************************************************************

2.2.3 Units for Exposed-Grid System (Metal Mesh Panel)

Basis of Design:

Armstrong Metalworks Mesh - Expanded Metal 6138AM Square edge 24 inch x 24 inch by 15/16 inch

Substitutions are not permitted without prior approval of Contacting officer.

2.2.3.1 Type

XX (perforated cold rolled steel mesh). Provide with up to 25 percent recycled content and data identifying this. Provide certification of indoor air quality for Type XX Ceiling Tiles .

2.2.3.2 Flame Spread

Class A, 25 or less

SECTION 09 51 00 Page 6

2.2.3.3 Pattern

C.

2.2.3.4 Minimum NRC

N/A.

2.2.3.5 Open Area Percentage

70 percent .

2.2.3.6 Nominal Size

24 inch by 24 inch by 15/16 inch

2.2.3.7 Edge Detail

Square.

2.2.3.8 Finish

Factory-applied black

****************************************************************Amendment 001

2.3 SUSPENSION SYSTEM

Provide standard exposed-grid standard width flange (15/16) inch suspension system conforming to ASTM C635/C635M for intermediate-duty systems. Provide surfaces exposed to view of aluminum or steel with a factory-applied white baked-enamel finish. Provide wall molding having a flange of not less than 15/16 inch . Provide inside and outside corner caps. Suspended ceiling framing system must have the capability to support the finished ceiling, light fixtures, air diffusers, and accessories, as shown. Provide a suspension system with a maximum deflection of 1/360 of the span length. Conform seismic details to the guidance in UFC 3-310-04 and ASTM E580/E580M contract drawings.

Provide Suspension System containing a minimum of 15 percent recycled content. Provide data identifying percentage of recycled content for suspension systems .

ACT - 1 Basis of Design:

Armstrong Prelude XL 15/16 inch exposed tee hot dipped galvanized steel with white standard finish.

FRP - 1 Basis of Design:

Armstrong Prelude XL 15/16 inch exposed tee hot dipped galvanized steel with white aluminum cap.

Substitutions are not permitted without prior approval of Contacting officer.

Amendment 001****************************************************************

SECTION 09 51 00 Page 7

MP - 1 Basis of Design:

Armstrong Prelude XL 15/16 inch exposed tee hot dipped galvanized steel with black aluminum cap.

Substitutions are not permitted without prior approval of Contacting officer.

****************************************************************Amendment 001

2.4 HANGERS

Provide hangers and attachment capable of supporting a minimum 300 pound ultimate vertical load without failure of supporting material or attachment.

2.4.1 Wires

Conform wires to ASTM A580/A580M , composition 302 or 304, condition annealed stainless steel, 0.08 inch (12 gauge) in diameter.

2.4.2 Rods

Provide 3/16 inch diameter threaded steel rods, zinc or cadmium coated.

2.4.3 Eyebolts

Provide eyebolts of weldless, forged-carbon-steel, with a straight-shank in accordance with ASTM A489. Eyebolt size must be a minimum 1/4 inch , zinc coated.

2.4.4 Masonry Anchorage Devices

Comply with ASTM C636/C636M for anchorage devices for machine screws.

2.5 ADHESIVE

Use adhesive as recommended by tile manufacturer. Provide non-aerosol adhesive products used on the interior of the building (defined as inside of the weatherproofing system) that meet the emissions requirements of CDPH Standard Method v1.1 (limit requirements for either office or classroom spaces regardless of space type) or VOC content requirements of SCAQMD Rule 1168 . Provide aerosol adhesives used on the interior of the building that meet the emissions requirements of CDPH Standard Method v1.1 (limit requirements for either office or classroom spaces regardless of space type) or VOC content requirements of GS-36. For products located on the interior of the building (inside of the weatherproofing system), provide certification or validation of indoor air quality for adhesives.

2.6 ACOUSTICAL SEALANT

Conform acoustical sealant to ASTM C834, nonstaining. Provide sealants used on the interior of the building (defined as inside of the weatherproofing system) that meet the emissions requirements of CDPH Standard Method v1.1 (limit requirements for either office or classroom spaces regardless of space type) and VOC content requirements of SCAQMD Rule 1168 . For products located on the interior of the building (inside of the weatherproofing system), provide certification of indoor

SECTION 09 51 00 Page 8 air quality for Sealants .

PART 3 EXECUTION

3.1 INSTALLATION

Do not install building construction materials that show visual evidence of biological growth.

Complete and dry interior finish work such as plastering, concrete, and terrazzo work before installation. Complete and approve mechanical, electrical, and other work above the ceiling line prior to the start of acoustical ceiling installation. Provide acoustical work complete with necessary fastenings, clips, and other accessories required for a complete installation. Do not expose mechanical fastenings in the finished work.

Lay out hangers for each individual room or space. Provide hangers to support framing around beams, ducts, columns, grilles, and other penetrations through ceilings. Keep main runners and carrying channels clear of abutting walls and partitions. Provide at least two main runners for each ceiling span. Wherever required to bypass an object with the hanger wires, install a subsuspension system so that all hanger wires will be plumb.

3.1.1 Suspension System

Install suspension system in accordance with ASTM C636/C636M and as specified herein. Do not suspend hanger wires or other loads from underside of steel decking.

3.1.1.1 Plumb Hangers

Install hangers plumb and not pressing against insulation covering ducts and pipes. Where lighting fixtures are supported from the suspended ceiling system, provide hangers at a minimum of four hangers per fixture and located not more than 6 inch from each corner of each fixture.

3.1.1.2 Splayed Hangers

Where hangers must be splayed (sloped or slanted) around obstructions, offset the resulting horizontal force by bracing, countersplaying, or other acceptable means.

3.1.2 Wall Molding

Provide wall molding where ceilings abut vertical surfaces. Install corner caps where wall moldings intersect. Secure wall molding not more than 3 inch from ends of each length and not more than 16 inch on centers between end fastenings. Provide wall molding springs at each acoustical unit in semi-exposed or concealed systems.

3.1.3 Acoustical Units

Install acoustical units in accordance with the approved installation instructions of the manufacturer. Ensure that edges of acoustical units are in close contact with metal supports, with each other, and in true alignment. Arrange acoustical units so that units less than one-half width are minimized. Hold units in exposed-grid system in place with manufacturer's standard hold-down clips, if units weigh less than 1 psf or if required for fire resistance rating.

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3.2 CLEANING

Following installation, clean dirty or discolored surfaces of acoustical units and leave them free from defects. Remove units that are damaged or improperly installed and provide new units as directed.

3.3 RECLAMATION PROCEDURES

Neatly stack ceiling tile, designated for recycling by the Contracting Officer, on 4 by 4 foot pallets not higher than 4 foot . Panels must be completely dry. Shrink wrap and symmetrically stack pallets on top of each other without falling over.

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