Copyright 2014 AIA MasterSpec Premium 06/14

PRODUCT MASTERSPEC LICENSED BY ARCOM TO USG CORPORATION.

Copyright 2014 by The American Institute of Architects (AIA)

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SECTION 095133 - ACOUSTICAL METAL PAN CEILINGS

TIPS:

To view non-printing Editor's Notes that provide guidance for editing, click on MasterWorks/SingleFile Formatting/Toggle/Editor's Notes.

To read detailed research, technical information about products and materials, and coordination checklists, click on MasterWorks/Supporting Information.

Revise this Section by deleting and inserting text to meet Project-specific requirements.

This Section uses the term "Architect." Change this term to match that used to identify the design professional as defined in the General and Supplementary Conditions.

Verify that Section titles referenced in this Section are correct for this Project's Specifications; Section titles may have changed.

PART 1 - GENERAL

1.1  RELATED DOCUMENTS

Retain or delete this article in all Sections of Project Manual.

  1. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division01 Specification Sections, apply to this Section.

1.2  SUMMARY

  1. Section includes acoustical metal pans and associated suspension system for interior ceilings.
  2. Related Requirements:

Retain subparagraphs below to cross-reference requirements Contractor might expect to find in this Section but are specified in other Sections.

  1. Section095113 "Acoustical Panel Ceilings" for ceilings consisting of mineral-base and glass-fiber-base acoustical panels and exposed suspension systems.
  2. Section095123 "Acoustical Tile Ceilings" for ceilings consisting of mineral-base acoustical tiles used with concealed suspension systems, stapling, or adhesive bonding.
  3. Section095423 "Linear Metal Ceilings."
  4. Section095436 "Suspended Decorative Grids."

Retain paragraph below if cast-in-place attachment devices are required for Project.

  1. Products furnished, but not installed, under this Section include anchors, clips, and other ceiling attachment devices to be cast in concrete.

1.3  PREINSTALLATION MEETINGS

Retain "Preinstallation Conference" Paragraph below if Work of this Section is extensive or complex enough to justify a conference.

  1. Preinstallation Conference: Conduct conference at [Project site] <Insert location>.

1.4  ACTION SUBMITTALS

  1. Product Data: For each type of product.
  2. Sustainable Design Submittals:

Retain "Product Data" Subparagraph below to require minimum recycled content for LEED 2009 MR Credit 2 - "Recycled Content."

  1. Product Data: For recycled content, indicating postconsumer and preconsumer recycled content and cost.

"Product Data" Subparagraph below applies to LEED 2009 NC, CI, and CS; LEEDv4; IgCC; ASHRAE189.1; and Green Globes. Coordinate with requirements for adhesives and sealants.

  1. Product Data: For adhesives and sealants, indicating VOC content.

"Laboratory Test Reports" Subparagraph below applies to LEED 2009 for Schools, LEEDv4, IgCC, ASHRAE189.1, and Green Globes. Coordinate with requirements for adhesives and sealants.

  1. Laboratory Test Reports: For adhesives and sealants, indicating compliance with requirements for low-emitting materials.

"Laboratory Test Reports" Subparagraph below applies to LEEDv4.

  1. Laboratory Test Reports: For ceiling products, indicating compliance with requirements for low-emitting materials.

"Laboratory Test Reports" Subparagraph below applies to LEEDv4.

  1. Laboratory Test Reports: For insulation, indicating compliance with requirements for low-emitting materials.

Retain "Samples" Paragraph below for single-stage Samples, with a subordinate list if applicable. Retain "Samples for Initial Selection" and "Samples for Verification" paragraphs for two-stage Samples.

  1. Samples: For each exposed product and for each color and texture specified, 6 inches (150 mm) in size.
  2. Samples for Initial Selection: For units with factory-applied finishes.
  3. Samples for Verification: For each component indicated and for each exposed finish required, prepared on Samples of size indicated below:

Delete first option in "Metal Pans" Subparagraph below if size of pans makes requirement impractical.

  1. Metal Pans: Set of [full-size] [6-inch- (150-mm-) square] Samples of each type, finish, color, pattern, and texture. Show pan edge profile.
  2. Exposed Suspension-System Members, Moldings, and Trim: Set of 6-inch- (150-mm-) long Samples of each type, finish, and color.
  3. Sound Absorber: Sample of each type matching size of Sample metal pan.

Retain "Delegated-Design Submittal" Paragraph below if design services have been delegated to Contractor.

  1. Delegated-Design Submittal: For design of [seismic restraints and]attachment devices.

1.5  INFORMATIONAL SUBMITTALS

Retain "Coordination Drawings" Paragraph below for situations where limited space necessitates maximum utilization for efficient installation of different components or if coordination is required for installation of products and materials by separate installers. Coordinate paragraph with other Sections specifying products listed below. Preparation of coordination drawings requires the participation of each trade involved in installations within the limited space.

  1. 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:
  2. Suspended ceiling components.
  3. Structural members to which suspension systems will be attached.
  4. Size and location of access modules for acoustical panels.
  5. Items penetrating finished ceiling including the following:
  6. Lighting fixtures.
  7. Air outlets and inlets.
  8. Speakers.
  9. Sprinklers.
  10. Access panels.
  11. Insert item>.
  12. Perimeter moldings.

Coordinate "Qualification Data" Paragraph below with qualification requirements in Section014000 "Quality Requirements" and as may be supplemented in "Quality Assurance" Article.

  1. Qualification Data: For testing agency.
  2. Product Test Reports: For each acoustical metal pan ceiling, for tests performed by [manufacturer and witnessed by a qualified testing agency] [a qualified testing agency].
  3. Evaluation Reports: For each acoustical metal pan ceiling suspension system[and anchor and fastener type].

Retain "Field quality-control reports" Paragraph below if Contractor is responsible for field quality-control testing and inspecting.

  1. Field quality-control reports.

1.6  CLOSEOUT SUBMITTALS

  1. Maintenance Data: For finishes to include in maintenance manuals.

1.7  MAINTENANCE MATERIAL SUBMITTALS

  1. Furnish extra materials that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.

Revise "Acoustical Metal Pans," "Suspension-System Components," and "Hold-Down Clips" subparagraphs below to suit Project. If preferred, replace percentage option in each subparagraph with a specific number of metal pans and pieces of each suspension component and their lengths.

  1. Acoustical Metal Pans: Full-size units equal to [2] <Insert number> percent of quantity installed.
  2. Suspension-System Components: Quantity of each grid, exposed molding, and trim equal to [2] <Insert number> percent of quantity installed.
  3. Hold-Down Clips: [Equal to 2 percent of quantity installed] <Insert number>.

1.8  QUALITY ASSURANCE

  1. Testing Agency Qualifications: Qualified according to NVLAP for testing indicated.
  2. Mockups: Build mockups to verify selections made under Sample submittals and to demonstrate aesthetic effects and set quality standards for materials and execution.

Indicate portion of ceiling represented by mockup on Drawings or draw mockup as separate element.

  1. Build mockup of typical ceiling area as shown on Drawings.

Retain subparagraph below if the intention is to make an exception to the default requirement in Section014000 "Quality Requirements" for demolishing and removing mockups.

  1. 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

  1. Deliver acoustical metal pans, suspension-system components, and accessories to Project site in original, unopened packages and store them in a fully enclosed, conditioned space where they are protected against damage from moisture, humidity, temperature extremes, direct sunlight, surface contamination, and other causes.
  2. Handle acoustical metal pans, suspension-system components, and accessories carefully to avoid damaging units and finishes in any way.

PART 2 - PRODUCTS

See Editing Instruction No.1 in the Evaluations for cautions about named manufacturers and products. For an explanation of options and Contractor's product selection procedures, see Section016000 "Product Requirements."

2.1  PERFORMANCE REQUIREMENTS

Retain "Delegated Design" Paragraph below if Contractor is required to assume responsibility for design of seismic restraints and attachment devices.

  1. Delegated Design: Engage a qualified professional engineer, as defined in Section014000 "Quality Requirements," to design [seismic restraints and]attachment devices.
  2. Surface-Burning Characteristics: Comply with ASTME84; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

Retain one option in "Flame-Spread Index" Subparagraph below. ClassA systems have a flame-spread index not exceeding 25 and a smoke-developed index not exceeding 50; ClassB systems have a flame-spread index not exceeding 75 on face side; and ClassC systems have a flame-spread index not exceeding 200 on face side. Most products available in the U.S. are ClassA.

  1. Flame-Spread Index: Comply with ASTME1264 for [ClassA] [ClassB] [ClassC] materials.
  2. Smoke-Developed Index: [50] [450] <Insert value> or less.

Unlike mineral composition units, acoustical metal pan units and ceilings are not tested according to ASTME119, are not listed in UL's "Fire Resistance Directory," and do not carry UL classification marking.

2.2  ACOUSTICAL METAL PANS, GENERAL

Retain "Source Limitations" Paragraph below if warranty requirements favor single-source ceiling systems or if ceiling units fit only the same manufacturer's suspension system.

  1. Source Limitations: Obtain each type of acoustical metal ceiling pan and supporting suspension system from single source from single manufacturer.

Retain "Recycled Content of Steel Products" Paragraph below to specify recycled content if required. An alternative method of requiring recycled content is to retain requirement in Project's Division01 sustainable design requirements Section that gives Contractor the option and responsibility to determine how recycled content requirements will be met.

  1. Recycled Content of Steel Products: Postconsumer recycled content plus one-half of preconsumer recycled content not less than [25] <Insert value> percent.

Retain "Recycled Content of Insulation" Paragraph below to specify recycled content if required. An alternative method of requiring recycled content is to retain requirement in Project's Division01 sustainable design requirements Section that gives Contractor the option and responsibility to determine how recycled content requirements will be met.

  1. Recycled Content of Insulation: Postconsumer recycled content plus one-half of preconsumer recycled content not less than <Insert value> percent.

Paragraph below applies to LEEDv4.

  1. Insulation shall comply with the requirements of the California Department of Public Health's "Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers."
  2. Acoustical Panel Standard: Provide manufacturer's standard pans of configuration indicated that comply with ASTME1264 classifications as designated by types, patterns, acoustical ratings, and light reflectances unless otherwise indicated.

"Mounting Method for Measuring NRC" Subparagraph below represents standard mounting referenced in ASTME1264. Revise if testing units with another mounting method is required for Project.

  1. Mounting Method for Measuring NRC: TypeE-400; plenum mounting in which face of test specimen is 15-3/4 inches (400 mm) away from test surface according to ASTME795.
  2. Sheet Metal Characteristics: For metal components exposed to view in the completed Work, provide materials with smooth, flat surfaces without blemishes. Do not use materials with exposed pitting, seam marks, roller marks, roughness, stains, or discolorations.

Retain one or more of "Aluminum Sheet," "Steel Sheet," and "Stainless-Steel Sheet" subparagraphs below for applicable sheet metal material(s).

  1. Aluminum Sheet: Rolled aluminum sheet, complying with ASTMB209 (ASTMB209M); alloy and temper recommended by aluminum producer and finisher for type of use and finish indicated.
  2. Steel Sheet: Commercial-quality, cold-rolled, carbon-steel sheet; stretcher leveled; with protective coating complying with ASTMC635/C635M.

Retain or revise "Painted Finishes" Subparagraph below for painted finishes. Verify, with manufacturers, availability of protective coatings and finishes.

  1. Painted Finishes: Electrolytic zinc-coated steel complying with ASTMA879/A879M, 13Z (40G) coating, surface treatment as recommended by finish manufacturer for type of use and finish indicated.

Retain or revise "Chemical/Mechanical Finishes" Subparagraph below for chemical/mechanical finishes. Verify, with manufacturers, availability of finishes.

  1. Chemical/Mechanical Finishes: Uncoated steel sheet complying with ASTMA1008/A1008M with luster or bright finish as required by finisher for applying electroplating or other metallic-finishing processes.

Stainless steel is available from most manufacturers as a custom, rather than a standard, product. Some manufacturers offer only Type430, which is a general-purpose ferritic stainless steel with less corrosion resistance than the 300-Series austenitic alloys. See Evaluations.

  1. Stainless-Steel Sheet: Complying with ASTMA240/A240M, [Type304] [Type430] <Insert type>.

Retain "Sound-Absorbent Fabric Layer" Paragraph below for sound-absorbent fabric. Verify availability of sound-absorbent fabric with manufacturer and coordinate with acoustical performance requirements if any.

  1. Sound-Absorbent Fabric Layer: Provide fabric layer, sized to fit concealed surface of pan, and consisting of black, nonwoven, nonflammable, sound-absorbent material with surface-burning characteristics for flame-spread index of 25 or less and smoke-developed index of 50 or less, as determined by testing according to ASTME84.
  2. Bond fabric layer to panels in the factory with manufacturer's standard nonflammable adhesive.

Retain "Sound-Absorbent Pads" Paragraph below for sound-absorbent pads that can reduce noise within a closed space. Verify availability, material, thickness, density, and color of wrap and pad with manufacturer and coordinate with acoustical performance requirements if any.

  1. Sound-Absorbent Pads: Provide width and length to completely fill concealed surface of pan, with surface-burning characteristics for flame-spread index of 25 or less and smoke-developed index of 50 or less, as determined by testing according to ASTME84, and to comply with the following requirements:
  2. Plastic Sheet-Wrapped, Mineral-Fiber Insulation: Pads consisting of nonrigid, PVC plastic sheet encapsulating unfaced mineral-fiber insulation complying with ASTMC553, TypeI, TypeII, or TypeIII, and as follows:

Revise "Mineral-Fiber Type and Thickness" Subparagraph below if mineral-wool fiber rather than glass fiber is required.