MPS Master
SECTION 09 51 00
ACOUSTICAL CEILINGS
PART - GENERAL
SUMMARY
Section Includes:
Provide lay-in ceiling panels in a suspended grid, of types noted on Drawings and specified as follows:
Acoustical Ceiling Panels
Vinyl Faced Gypsum Board Panels
Metal LayIn Ceiling Panels; around perimeter of Kitchen exhaust hood as noted on Drawings. Metal panels shall extend out from exposed face and sides of hood not less than 18inches. Do not attach suspended ceiling grid or edge trim to hood.
Provide suspension systems and other types of fastening systems required to install and support ceiling panels.
Provide nonfire rated, direct hung, galvanized steel, exposed, doubleweb, intermediate duty, suspended grid in all conditions unless otherwise indicated.
In dishwashing and kitchen areas, provide nonfire rated, direct hung, all aluminum, exposed, doubleweb, light duty, suspended grid.
Provide exposed metal trim members which relate directly to a tile ceiling suspension system.
Provide fasteners and anchorage items required to secure ceiling suspension systems in place.
Provide hold down clips where indicated on Drawings or specified.
SUBMITTALS
General Requirements: Provide submittals in accordance with Section 013300.
Shop Drawings:
Prepare a Reflected Ceiling Plan, to scale, which shows the following:
Location of ceiling suspension system components.
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SECTION 09 51 00
Locations of electrical light fixtures, and mechanical ceiling diffusers, registers, and grilles.
Coordinate Shop Drawings with Contract Drawings (architectural, electrical, and mechanical). Notify Architect in writing of deviations on Shop Drawings from Contract Drawings.
Product Data: Submit manufacturer’s Product Data for each acoustical unit and suspension system product intended to be provided.
Samples:
Submit one sample, not less than 12inches square, of each acoustical unit type intended to be provided, including edge conditions.
Submit one 12-inch length sample of each ceiling suspension system component intended to be provided.
Product Test Reports: Submit manufacturer=s test reports that products to be provided comply with specified performance requirements.
QUALITY ASSURANCE
Manufacturer Qualifications:
All panel units of each type and all components of each suspension system type shall be by one manufacturer.
Panel units and suspension system components used to patch existing acoustical ceiling systems shall match existing ceiling components or be salvaged undamaged existing components as available and approved by Architect.
Installer Qualifications: Installer shall be acceptable to, licensed by, or be an authorized agent of the acoustical ceiling system manufacturer and shall be responsible for the complete finished installation.
Fire Performance: Ceiling panels shall comply with the following:
Surface Burning Characteristics: Tested in accordance with ASTM E84, UL listed, and have suitable identification.
Fire Resistance Rating: Tested in accordance with ASTM E119 and listed in UL Fire Resistance Directory.
DELIVERY, STORAGE AND HANDLING
Delivery: Deliver products in manufacturer=s original unopened packages/containers, with labels intact.
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Storage: Store products to provide suitable protection against deleterious effects from exposure to moisture, direct sunlight, or other causes.
Handling: Handle products to prevent damage, especially to edges and corners of acoustical units.
SITE CONDITIONS
Environmental Requirements: Do not install acoustical ceiling systems until interior temperature and humidity conditions closely approximate conditions that will exist after building is occupied, however provide a temperature of 60 to 85degreesF and a relative humidity of not more than 70 percent. Maintain this environmental condition before, during, and continuous after installation.
Installation Area Conditions:
Before start of installation the following shall exist:
Building enclosed with completed water tight roofing system, and all windows, doors, and other openings in the building exterior envelope are sealed air and water tight.
Work of all wet trades within Project area of building is completed and thoroughly dried.
Work of mechanical and electrical trades above suspended ceilings and through roof structure is completed. Coordinate ceiling installation work with mechanical and electrical trades.
Work on building roof is complete.
When space above a suspended ceiling will be used as a pressurized plenum, operate ventilation system for not less than 48 hours before start of ceiling installation to cleanse duct systems.
MAINTENANCE
Maintenance Materials:
Furnish to Owner for maintenance use, 2percent of total quantity of each type of acoustical panel materials installed, but in no case less than (1) full package of each.
Provide maintenance materials obtained from same production run as panel material installed.
Provide in manufacturers standard packaging with suitable protection for storage, with identification labels intact, and clearly labeled as maintenance materials for storage.
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Acoustical Ceilings
MPS Master
SECTION 09 51 00
PART - PRODUCTS
MATERIALS
General Requirements: Provide acoustical system products in accordance with ASTM C635 and ASTM E1264.
PANEL UNITS
Mineral Fiber Panels (2 by 2) - Fine Fissured Square Edge High NRC Design:
Acceptable Manufacturers: Subject to compliance with requirements of the Contract Documents, acceptable manufacturers are as follows or Owner approved equal:
USG Interiors, Inc., Radar Clima Plus, High NRC No.22421
Description and Performance Requirements:
Size: 24Inches by 24Inches by 3/4Inch
Edge: Square Edge
Pattern: Medium Texture, Fine Fissured, NonDirectional
Finish Color: White
Noise Reduction Coefficient: 0.70 Minimum
Fire Hazard Classification: UL Labeled, ClassA
Material: Wet-Formed Mineral Fiber
Sag, Mold, and Mildew Resistance: 30-Year Warranty
Grid: 15/16Inch Wide
Vinyl Faced Gypsum Board Panels (2 by 2) Square Edge:
Acceptable Manufacturers: Subject to compliance with requirements of the Contract Documents, acceptable manufacturers are as follows or Owner approved equal:
CertainTeed Corporation, “Vinylrock X”
Chicago Metalic Corporation, “Endure VinylGyp Ceiling Panels”
National Gypsum Company, Gold Bond Building Products, “Gridstone”
USG Interiors, Inc., “Gypsum LayIn Panels ClimaPlus Firecode, Stipple Pattern, No.3260”
Description:
Size: 24Inches by 24Inches by 1/2Inch
Edge: Square
Finish Color: White
Sag Resistance: 15Year Warranty
Ceiling Suspension System (Grid) Face Dimension: 15/16Inch
Classification (Performance) Requirements: In accordance with ASTM E1264.
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Ceiling Type: Type XX vinyl faced gypsum board.
Ceiling Pattern: Designation G smooth.
Noise Reduction Coefficient (NRC) (ASTM C423): 0.0to 0.10.
Fire Class: ClassA Flame Spread Rating (ASTM E84); UL Classified (ASTM E119).
USDA Approval: Approved for use in food processing and service areas.
Light Reflectance: LR1 (0.80).
Metal Lay-In Ceiling Panels (2 by 2) Square Edge:
Acceptable Manufacturers: Subject to compliance with requirements of the Contract Documents, acceptable manufacturers are as follows or Owner approved equal:
Chicago Metallic, "Planostile"
United States Gypsum Company, "Panz"
Description:
Size: 24Inches by 24Inches; field modified as required to meet required conditions.
Material: Aluminum, of thickness required to provide rigidity needed.
Edge: Square edge, flat panel.
Surface and Finish: Smooth, nonperforated, white painted finish.
CEILING SUSPENSION SYSTEMS (CEILING GRID) MATERIALS: For general non-fire rated use.
Non-Fire Rated, Direct-Hung, Exposed, Double-Web, Intermediate Duty, Suspension System:
Acceptable Manufacturers: Subject to compliance with requirements of the Contract Documents, acceptable manufacturers are as follows or Owner approved equal:
Armstrong World Industries, Inc., “Prelude XL, 7300 System”
CertainTeed Corporation, “Classic Stab System”
Chicago Metallic Corporation, “Seismic1200 System”
USG Interiors, Inc., “Donn DX Suspension System, 24 Series”
Structural Classification: ASTM C635, Intermediate Duty.
Material: Cold rolled electrogalvanized or hotdip galvanized steel.
Finish: Factory applied baked paint, white color.
Suspension System Face Width Dimension: 15/16inch.
Edge Trim/Moldings: 24 gauge cold rolled electrogalvanized or hotdip galvanized steel, with finish matching finish of adjacent exposed ceiling suspension system components. Provide channel or angle shape unless otherwise indicated on Drawings.
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Non-Fire Rated, Direct-Hung, Exposed, Double-Web, Heavy Duty, Suspension System:
Acceptable Manufacturers: Subject to compliance with requirements of the Contract Documents, acceptable manufacturers are as follows or Owner approved equal:
Armstrong World Industries, Inc., “Prelude XL System No.7301”
Chicago Metallic Corporation, “1200 System No.211”
USG Interiors, Inc., “Donn Brand Suspension Systems Type DX26”
Structural Classification: ASTM C635, Heavy Duty.
Material: Cold rolled electrogalvanized or hotdip galvanized steel.
Finish: Factory applied baked paint, white color.
Suspension System Face Width Dimension: 15/16inch.
Edge Trim/Moldings: 24 gauge cold rolled electrogalvanized or hotdip galvanized steel, with finish matching finish of adjacent exposed ceiling suspension system components. Provide channel or angle shape unless otherwise indicated on Drawings.
Non-Fire Rated, Direct Hung, All-Aluminum, Exposed, Double-Web, Light Duty, Suspension System: For use in moisture resistant areas.
Acceptable Manufacturers: Subject to compliance with requirements of the Contract Documents, acceptable manufacturers are as follows or Owner approved equal:
Armstrong World Industries, Inc., “AL Prelude Plus XL”
Chicago Metallic Corporation, “830 All Aluminum System”
USG Interiors, Inc., “Donn AX Suspension System”
Structural Classification: ASTM C635, Light Duty.
Material: All aluminum.
Finish: Factory applied baked paint, white color.
Suspension System Face Width Dimension: 15/16inch.
Edge Trim/Moldings: All aluminum, with finish matching finish of exposed ceiling suspension system components. Provide channel or angle shape unless otherwise indicated on Drawings.
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MPS Master
SECTION 09 51 00
ACCESSORY MATERIALS
Attachment Devices: Size anchors and intermediate support members for (5) times design load indicated in ASTM C635, Table I.
Hanger Wire: Not less than 12gauge (SWG) galvanized (zinc coated) carbon steel in accordance with ASTM A641, unless otherwise specified.
NonCorrosive Hanger Wire: 0.125inch diameter aluminum wire or 12gauge (SWG) stainless steel wire.
NonCorrosive Hanger Wire: Not less than 14 gauge, No.400 alloy Monel wire.
Angle Hangers: Zinc-coated (galvanized) steel.
Flat Hangers: Zinc-coated (galvanized) steel.
Hanger Rods: Zinc-coated (galvanized) steel.
Concrete Anchors: Corrosion-resistant design; tested in accordance with ASTM E488
Furring Channels: No.16MSG coldrolled steel channels, 3inches or 11/2inches deep as adequate to support ceiling system loads across spans required to accommodate building structure and mechanical systems within plenum spaces above suspended ceilings.
PART - EXECUTION
EXAMINATION
Site Verification of Conditions:
Determine acceptability of substrates and conditions under which acoustical ceiling systems are to be installed.
Do not proceed with installation until detrimental conditions have been corrected. Start of installation indicates installer=s acceptance of substrates and conditions.
PREPARATION
Layout: Layout ceiling system in accordance with reflected ceiling plans as approved by Architect.
Layout of suspension system to be symmetrical within spaces and parallel to walls, unless otherwise indicated, as coordinated with and approved by Architect.
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MPS Master
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Unless otherwise indicated or approved by Architect, layout ceiling system to balance border unit widths at opposite edges of spaces, with portions of tile units not less than 1/2 width of standard tile size.
Joints and exposed suspension system components shall be straight and in alignment.
Coordination: Coordinate layout and installation with other work supported by or penetrating through ceilings, including, as applicable; light fixtures and other electrical devices; heating, ventilating, and/or air conditioning components; fire suppression system components; and partition systems.
Product Conditioning: Before start of acoustical ceiling unit installation, open packages and allow product to stabilize to environmental conditions of the installation area.
INSTALLATION
General Installation Requirements:
Standards: In accordance with requirements of the following:
CISCA “Acoustical Ceilings: Use and Practice” and “Ceiling Systems Handbook”
Applicable Codes
Install ceiling suspension system in accordance with requirements of ASTMC636, except where product manufacturer has more stringent requirements, instructions, or recommendations, or except when more stringent requirements are specified.
Location of Ceiling Types: Refer to Room Finish Schedule and Reflected Ceiling Plan Drawings for location of ceiling types and layout.
Tolerances: Install suspension system to be level within 1/8inch in 12feet nonaccumulating.
Furring Channels: Provide 3inches or 11/2inches deep channels as adequate to support ceiling system loads, including related mechanical and electrical products installed within the ceiling system, across spans which are required to accommodate building structure and mechanical systems located within plenum spaces above suspended ceilings.
Coordination With Lighting:
Coordinate acoustical tile installation with light fixture layout to obtain a uniform pattern throughout building.
Obtain Architects approval of proposed ceiling layout before starting installation.
Make every effort to center joints between ceiling tile, or the whole tile, on adjacent light fixtures.
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MPS Master
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Suspension System at Recessed Light Fixtures:
Run main runners perpendicular to recessed flush mounted light fixtures, unless noted otherwise.
Attach light fixtures to main runners and bridging T’s which run perpendicular to main runners and on sides of light fixtures.
Space support wires along main runners at not more than 4feet on center and provide wires adjacent to intersection of main runners and bridging T’s supporting light fixtures.
Suspension System at Surface Mounted Light Fixtures:
Run main runners parallel to surface mounted light fixtures unless noted otherwise.
Attach light fixtures to main runners wherever possible. Coordinate with light fixture installer.
Additional Support/Hanger Wires: Provide completed installed ceilings having deflections of not more than 1/360 of suspension system spans.
Provide (1)hanger wire attached to ceiling suspension system at not less than 2diagonal corners at each recessed light fixture.
Provide (1)additional hanger wire attached to ceiling suspension system for every 4lineal feet of runners, for additional support for items mounted to ceiling grid, to include but not be limited to the following:
Surface Mounted Light Fixtures
Cubicle Curtains
Projection Screens
Edge Trim/Moldings:
Install wherever suspension system components meet vertical surfaces.
Set trim in acoustical sealant.
Secure trim to vertical substrate.
Neatly miter corners.
Hold Down Clips:
Install (1)hold down clip on each side of ceiling panels in building entrance vestibules.
Install (1)hold down clip on each side of ceiling panels in Toilet Rooms.
Exposed Suspension System (Grid) Installation:
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