HomeMy WebLinkAbout09 51 23.docMATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
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CARMEL CITY CENTER Date 03.26.12 ACOUSTICAL TILE CEILINGS
MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
SECTION 09 51 23 - ACOUSTICAL TILE CEILINGS
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section Includes:
1. Acoustical tiles for ceilings.
2. Concealed suspension systems.
B. Products furnished, but not installed under this Section, include anchors, clips, and other ceiling
attachment devices to be cast in concrete.
1.3 PRE-INSTALLATION MEETINGS
A. Pre-installation Conference: Conduct conference at Project site.
1.4 ACTION SUBMITTALS
A. Product Data: For each type of product.
B. Samples: For each exposed product and for each color and texture specified, 6-inches- in size.
C. Samples for Initial Selection: For components with factory-applied color finishes.
D. Samples for Verification: For each component indicated and for each exposed finish required,
prepared on Samples of size indicated below.
1. Acoustical Tile: Set of full-size Samples of each type, color, pattern, and texture.
2. Concealed Suspension-System Members: 6-inch- long Sample of each type.
3. Exposed Moldings and Trim: Set of 6-inch- long Samples of each type and color.
1.5 INFORMATIONAL SUBMITTALS
A. Coordination Drawings: Reflected ceiling plans, drawn to scale, on which the following items
are shown and coordinated with each other, using input from installers of the items involved:
1. Ceiling suspension-system members.
2. Method of attaching hangers to building structure.
a. Furnish layouts for cast-in-place anchors, clips, and other ceiling attachment
devices whose installation is specified in other Sections.
3. Size and location of initial access modules for acoustical tile.
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4. Ceiling-mounted items including lighting fixtures, diffusers, grilles, speakers, sprinklers,
access panels, and special moldings.
5. Minimum Drawing Scale: 1/4 inch = 1 foot.
B. Qualification Data: For testing agency.
C. Product Test Reports: For each acoustical tile ceiling, for tests performed by manufacturer and
witnessed by a qualified testing agency.
D. Evaluation Reports: For each acoustical tile ceiling suspension system and anchor and
fastener type, from ICC-ES.
E. Field quality-control reports.
1.6 CLOSEOUT SUBMITTALS
A. Maintenance Data: For finishes to include in maintenance manuals.
1.7 MAINTENANCE MATERIAL SUBMITTALS
A. Furnish extra materials that match products installed and that are packaged with protective
covering for storage and identified with labels describing contents.
1. Acoustical Ceiling Units: Full-size tiles equal to 2 percent of quantity installed.
2. Suspension-System Components: Quantity of each concealed grid and exposed
component equal to 2 percent of quantity installed.
1.8 QUALITY ASSURANCE
A. Testing Agency Qualifications: Qualified according to the National Voluntary Laboratory
Accreditation Program (NVLAP) for testing indicated.
B. Mockups: Build mockups, if requested by Architect, to verify selections made under sample
submittals and to demonstrate aesthetic effects and set quality standards for materials and
execution.
1. Build mockup of typical ceiling area as shown on Drawings.
2. Subject to compliance with requirements, approved mockups may become part of the
completed Work if undisturbed at time of Substantial Completion.
1.9 DELIVERY, STORAGE, AND HANDLING
A. Deliver acoustical tiles, suspension-system components, and accessories to Project site in
original, unopened packages and store them in a fully enclosed, conditioned space where they
will be protected against damage from moisture, humidity, temperature extremes, direct
sunlight, surface contamination, and other causes.
B. Before installing acoustical tiles, permit them to reach room temperature and a stabilized
moisture content.
C. Handle acoustical tiles carefully to avoid chipping edges or damaging units in any way.
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1.10 FIELD CONDITIONS
A. Environmental Limitations: Do not install acoustical tile ceilings until spaces are enclosed and
weatherproof, wet work in spaces is complete and dry, work above ceilings is complete, and
ambient temperature and humidity conditions are maintained at the levels indicated for Project
when occupied for its intended use.
1. Pressurized Plenums: Operate ventilation system for not less than 48 hours before
beginning acoustical tile ceiling installation.
PART 2 - PRODUCTS
2.1 PERFORMANCE REQUIREMENTS
A. Seismic Performance: Acoustical ceiling shall withstand the effects of earthquake motions
determined according to ASCE/SEI 7.
B. Surface-Burning Characteristics: Comply with ASTM E 84; testing by a qualified testing agency.
Identify products with appropriate markings of applicable testing agency.
1. Flame-Spread Index: Comply with ASTM E 1264 for Class A materials.
2. Smoke-Developed Index: 50 or less.
C. Fire-Resistance Ratings: Comply with ASTM E 119; testing by a qualified testing agency.
Identify products with appropriate markings of applicable testing agency.
1. Indicate design designations from UL's "Fire Resistance Directory" or from the listings of
another qualified testing agency.
2.2 ACOUSTICAL TILES, GENERAL
A. Low-Emitting Materials: Acoustical tile ceilings shall comply with the testing and product
requirements of the California Department of Health Services' "Standard Practice for the Testing
of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental
Chambers."
B. Source Limitations:
1. Acoustical Ceiling Tile: Obtain each type from single source from single manufacturer.
2. Suspension System: Obtain each type from single source from single manufacturer.
C. Recycled Content: Postconsumer recycled content plus one-half of pre-consumer recycled
content not less than 25 percent.
D. Acoustical Tile Standard: Provide manufacturer's standard tiles of configuration indicated that
comply with ASTM E 1264 classifications as designated by types, patterns, acoustical ratings,
and light reflectances unless otherwise indicated.
E. Acoustical Tile Colors and Patterns: Match appearance characteristics indicated for each
product type.
1. Where appearance characteristics of acoustical tiles are indicated by referencing pattern
designations in ASTM E 1264 and not manufacturers' proprietary product designations,
provide products selected by Architect from each manufacturer's full range that comply
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with requirements indicated for type, pattern, color, light reflectance, acoustical
performance, edge detail, and size.
2.3 ACOUSTICAL TILES – ACT 2
A. Manufacturers: Subject to compliance with requirements, provide products by the following:
1. Armstrong World Industries, Inc.
B. Classification: Provide fire-resistance-rated tiles complying with ASTM E 1264 for type, form,
and pattern as follows:
1. Type and Form: Type III, mineral base with painted finish; Form 2, water felted.
2. Pattern:
a. Dune Tegular.
C. Color: White.
D. LR: Not less than 0.83.
E. NRC: Not less than 0.50.
F. CAC: Not less than 35.
G. Edge/Joint Detail: Angled tegular.
H. Thickness: 5/8 inch.
I. Modular Size: 24 by 24 inches.
J. Broad Spectrum Antimicrobial Fungicide and Bactericide Treatment: Provide acoustical tiles
treated with manufacturer's standard antimicrobial formulation that inhibits fungus, mold,
mildew, and gram-positive and gram-negative bacteria and showing no mold, mildew, or
bacterial growth when tested according to ASTM D 3273 and evaluated according to
ASTM D 3274 or ASTM G 21.
2.4 ACOUSTICAL TILES – ACT 1
A. Manufacturers: Subject to compliance with requirements, provide products by the following:
1. USG Interiors, Inc.; Subsidiary of USG Corporation.
B. Classification: Provide fire-resistance-rated tiles complying with ASTM E 1264 for type, form,
and pattern as follows:
1. Type and Form: Type IV, mineral base with painted finish; Form 2, water felted.
2. Pattern: E (lightly textured).
C. Color: White.
D. LR: Not less than 0.80.
E. NRC: Not less than 0.70.
F. CAC: Not less than 40.
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G. Edge/Joint Detail: Square edged, flush mount.
H. Thickness: As indicated in a schedule.
I. Modular Size: 24 by 24 inches.
J. Broad Spectrum Antimicrobial Fungicide and Bactericide Treatment: Provide acoustical tiles
treated with manufacturer's standard antimicrobial formulation that inhibits fungus, mold,
mildew, and gram-positive and gram-negative bacteria and showing no mold, mildew, or
bacterial growth when tested according to ASTM D 3273 and evaluated according to
ASTM D 3274 or ASTM G 21.
2.5 METAL SUSPENSION SYSTEMS, GENERAL
A. Recycled Content: Postconsumer recycled content plus one-half of pre-consumer recycled
content not less than 25 percent.
B. Metal Suspension-System Standard: Provide manufacturer's standard metal suspension
systems of types, structural classifications, and finishes indicated that comply with applicable
requirements in ASTM C 635.
C. Attachment Devices: Size for five times the design load indicated in ASTM C 635, Table 1,
"Direct Hung," unless otherwise indicated. Comply with seismic design requirements.
1. Power-Actuated Fasteners in Concrete: Fastener system of type suitable for application
indicated, fabricated from corrosion-resistant materials, with clips or other accessory
devices for attaching hangers of type indicated, and with capability to sustain, without
failure, a load equal to 10 times that imposed by ceiling construction, as determined by
testing according to ASTM E 1190, conducted by a qualified testing and inspecting
agency.
D. Wire Hangers, Braces, and Ties: Provide wires complying with the following requirements:
1. Zinc-Coated, Carbon-Steel Wire: ASTM A 641, Class 1 zinc coating, soft temper.
2. Size: Select wire diameter so its stress at three times hanger design load (ASTM C 635,
Table 1, "Direct Hung") will be less than yield stress of wire, but provide not less than
0.106-inch- diameter wire.
2.6 METAL SUSPENSION SYSTEM
A. Manufacturers: Subject to compliance with requirements, provide products by the following:
1. Armstrong World Industries, Inc.
2.7 METAL EDGE MOLDINGS AND TRIM
A. Manufacturers: Subject to compliance with requirements, provide products by the following:
1. Armstrong World Industries, Inc.
2. CertainTeed Corp.
3. Chicago Metallic Corporation.
4. Fry Reglet Corporation.
5. Gordon, Inc.
6. USG Interiors, Inc.; Subsidiary of USG Corporation.
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B. Roll-Formed, Sheet-Metal Edge Moldings and Trim: Type and profile indicated or, if not
indicated, manufacturer's standard moldings for edges and penetrations complying with seismic
design requirements; formed from sheet metal of same material, finish, and color as that used
for exposed flanges of suspension-system runners.
1. Provide manufacturer's standard edge moldings that fit acoustical tile edge details and
suspension systems indicated and that match width and configuration of exposed runners
unless otherwise indicated.
2. For circular penetrations of ceiling, provide edge moldings fabricated to diameter required
to fit penetration exactly.
2.8 ACOUSTICAL SEALANT
A. Products: Subject to compliance with requirements, provide one of the following:
1. Acoustical Sealant for Exposed and Concealed Joints:
a. USG Corporation; SHEETROCK Acoustical Sealant.
2. Acoustical Sealant for Concealed Joints:
a. Tremco, Inc.; Tremco Acoustical Sealant.
B. Acoustical Sealant: Manufacturer's standard sealant complying with ASTM C 834 and effective
in reducing airborne sound transmission through perimeter joints and openings in building
construction as demonstrated by testing representative assemblies according to ASTM E 90.
1. Exposed and Concealed Joints: Non-sag, paintable, non-staining latex sealant.
2. Concealed Joints: Non-drying, non-hardening, non-skinning, non-staining, gunnable,
synthetic-rubber sealant.
3. Acoustical sealant shall have a VOC content of 250 g/L or less when calculated
according to 40 CFR 59, Subpart D (EPA Method 24).
PART 3 - EXECUTION
3.1 EXAMINATION
A. Examine substrates, areas, and conditions, including structural framing and substrates to which
acoustical tile ceilings attach or abut, with Installer present, for compliance with requirements
specified in this and other Sections that affect ceiling installation and anchorage and for
compliance with requirements for installation tolerances and other conditions affecting
performance of the Work.
B. Examine acoustical tiles before installation. Reject acoustical tiles that are wet, moisture
damaged, or mold damaged.
C. Proceed with installation only after unsatisfactory conditions have been corrected.
3.2 PREPARATION
A. Measure each ceiling area and establish layout of acoustical tiles to balance border widths at
opposite edges of each ceiling. Avoid using less-than-half-width tiles at borders, and comply
with layout shown on reflected ceiling plans.
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3.3 INSTALLATION OF SUSPENDED ACOUSTICAL TILE CEILINGS
A. General: Install acoustical panel ceilings to comply with ASTM C 636 and seismic design
requirements indicated, according to manufacturer's written instructions and CISCA's "Ceiling
Systems Handbook."
1. Fire-Rated Assembly: Install fire-rated ceiling systems according to tested fire-rated
design.
B. Suspend ceiling hangers from building's structural members and as follows:
1. Install hangers plumb and free from contact with insulation or other objects within ceiling
plenum that are not part of supporting structure or of ceiling suspension system.
2. Splay hangers only where required and, if permitted with fire-resistance-rated ceilings, to
miss obstructions; offset resulting horizontal forces by bracing, counter splaying, or other
equally effective means.
3. Where width of ducts and other construction within ceiling plenum produces hanger
spacings that interfere with location of hangers at spacings required to support standard
suspension-system members, install supplemental suspension members and hangers in
form of trapezes or equivalent devices.
4. Secure wire hangers to ceiling suspension members and to supports above with a
minimum of three tight turns. Connect hangers directly either to structures or to inserts,
eye screws, or other devices that are secure and appropriate for substrate and that will
not deteriorate or otherwise fail due to age, corrosion, or elevated temperatures.
5. Secure flat, angle, channel, and rod hangers to structure, including intermediate framing
members, by attaching to inserts, eye screws, or other devices that are secure and
appropriate for both the structure to which hangers are attached and the type of hanger
involved. Install hangers in a manner that will not cause them to deteriorate or fail due to
age, corrosion, or elevated temperatures.
6. Do not support ceilings directly from permanent metal forms or floor deck. Fasten
hangers to cast-in-place hanger inserts, post-installed mechanical or adhesive anchors,
or power-actuated fasteners that extend through forms into concrete.
7. When steel framing does not permit installation of hanger wires at spacing required,
install carrying channels or other supplemental support for attachment of hanger wires.
8. Do not attach hangers to steel deck tabs.
9. Do not attach hangers to steel roof deck. Attach hangers to structural members.
10. Space hangers not more than 48 inches o.c. along each member supported directly from
hangers unless otherwise indicated; provide hangers not more than 8 inches from ends
of each member.
11. Size supplemental suspension members and hangers to support ceiling loads within
performance limits established by referenced standards and publications.
C. Secure bracing wires to ceiling suspension members and to supports with a minimum of four
tight turns. Suspend bracing from building's structural members as required for hangers without
attaching to permanent metal forms, steel deck, or steel deck tabs. Fasten bracing wires into
concrete with cast-in-place or post-installed anchors.
D. Install edge moldings and trim of type indicated at perimeter of acoustical tile ceiling area and
where necessary to conceal edges of acoustical tiles.
1. Apply acoustical sealant in a continuous ribbon concealed on back of vertical legs of
moldings before they are installed.
2. Screw attach moldings to substrate at intervals not more than 16 inches and not more
than 3 inches from ends, leveling with ceiling suspension system to a tolerance of 1/8
inch in 12 feet. Miter corners accurately and connect securely.
3. Do not use exposed fasteners, including pop rivets, on moldings and trim.
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E. Install suspension-system runners so they are square and securely interlocked with one
another. Remove and replace dented, bent, or kinked members.
F. Arrange directionally patterned acoustical tiles as follows:
1. As indicated on reflected ceiling plans.
G. Install acoustical tiles in coordination with suspension system and exposed moldings and trim.
Place splines or suspension-system flanges into kerfed edges so tile-to-tile joints are closed by
double lap of material.
1. Fit adjoining tile to form flush, tight joints. Scribe and cut tile for accurate fit at borders
and around penetrations through tile.
2. Hold tile field in compression by inserting leaf-type, spring-steel spacers between tile and
moldings, spaced 12 inches o.c.
3. Protect lighting fixtures and air ducts to comply with requirements indicated for fire-
resistance-rated assembly.
3.4 FIELD QUALITY CONTROL
A. Testing Agency: Engage a qualified testing agency to perform tests and inspections and
prepare test reports.
B. Perform the following tests and inspections of completed installations of acoustical tile ceiling
hangers and anchors and fasteners in successive stages and when installation of ceiling
suspension systems on each floor has reached 20 percent completion but no tiles have been
installed. Do not proceed with installations of acoustical tile ceiling hangers for the next area
until test results for previously completed installations of acoustical tile ceiling hangers show
compliance with requirements.
1. Within each test area, testing agency will select one of every 10 power-actuated
fasteners and post-installed anchors used to attach hangers to concrete and will test
them for 200 lbf of tension; it will also select one of every two post-installed anchors used
to attach bracing wires to concrete and will test them for 440 lbf of tension.
2. When testing discovers fasteners and anchors that do not comply with requirements,
testing agency will test those anchors not previously tested until 20 pass consecutively
and then will resume initial testing frequency.
C. Acoustical tile ceiling hangers and anchors and fasteners will be considered defective if they do
not pass tests and inspections.
D. Prepare test and inspection reports.
3.5 CLEANING
A. Clean exposed surfaces of acoustical tile ceilings, including trim and edge moldings. Comply
with manufacturer's written instructions for cleaning and touchup of minor finish damage.
Remove and replace tiles and other ceiling components that cannot be successfully cleaned
and repaired to permanently eliminate evidence of damage.
END OF SECTION 09 51 23