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HomeMy WebLinkAbout09-5133-Acoustical-Metal-Pan-Ceilings-(Part-of-FSB-09-0003)_Rev_1Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ACOUSTICAL METAL PAN CEILINGS 09 5133 - 1 SECTION 09 5133 ACOUSTICAL METAL PAN CEILINGS (Part of Filed Sub-Bid Section 09 0003 - Acoustical Tile) 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. Work Included: Provide labor, materials and equipment necessary to complete the work of this Section, including but not limited to the following: 1. Acoustical wood-veneer-faced metal pans and suspension systems for interior ceilings. 2. Acoustical wedge-shaped aluminum panels and exposed suspension systems for interior ceilings. 3. Sound attenuation (acoustical) insulation over metal pans. 4. Other items indicated on Drawings as Work of this Section. B. Related Requirements: 1. Section 01 8113 “Sustainable Design Requirements" for general requirements and procedures for compliance with certain LEED prerequisites and credits needed for Project to obtain LEED certification. 2. Section 09 5113 "Acoustical Panel Ceilings" for ceilings consisting of mineral-base and glass-fiber-base acoustical panels and exposed suspension systems. 3. Section 09 5163 “Seamless Acoustical Ceiling Systems" for seamless acoustical ceiling system including concealed grid suspension system. 4. Section 09 5425 “Linear Plastic Ceilings” for linear plastic (PVC) ceiling strips and suspension systems for exterior ceilings. 5. Section 09 5426 “Suspended Wood Ceilings.” 6. Section 09 5456 “Formed Felt Fabric Ceiling Panels” for shop-fabricated, felt fiber ceiling panels (blades). 7. Section 09 5723 “Sound-Diffusing Ceiling Units” for pyramidal sound-diffusing ceiling panels fabricated from thermo-molded co-polymer material. 8. Division 21 Sections "Fire Protection" for ceiling mounted sprinkler heads. 9. Division 23 Sections "Heating, Ventilating and Air-Conditioning" for ceiling mounted registers and grilles. 10. Division 26 Sections "Electrical" for ceiling mounted light fixtures. 1.3 PREINSTALLATION MEETINGS A. Preinstallation Conference: Conduct conference at Project site. 1.4 ACTION SUBMITTALS A. Make Submittals in accordance with Section 01 3300 “Submittal Procedures.” Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ACOUSTICAL METAL PAN CEILINGS 09 5133 - 2 B. Product Data: For each type of product. Include procedure for cutting metal pans. C. Sustainable Design Submittals: 1. Environmental Product Declaration (EPD): Provide manufacturers’ product documentation for each product having an Environmental Product Declaration (EPD). a. Documentation should confirm EPD conforms with ISO 14205 EN 15804 or ISO 21930. b. EPD shall have at least Cradle to Gate scope. c. Complete "LEED Materials Documentation Sheet" with MRc2 information for each product having an EPD. 2. Recycled Content: Provide manufacturers’ product documentation that includes recycled content claims for the products contributing towards compliance. Claims must conform to the definition in ISO 14021-1999, Environmental Labels and Declarations, Self-Declared Environmental Claims. a. Complete "LEED Materials Documentation Sheet" with MRc3 Option 2 information for products with recycled content installed in the building. 3. Health Product Declaration (HPD): Provide manufacturers’ product documentation for each product having a publically available material inventory down to at least 0.1 percent or 1000 ppm. a. Documentation should be in the form of one of the following: 1) A publically available inventory of all ingredients identified by name and Chemical Abstract Service Registration Number (CASRN). 2) A published, complete Health Product Declaration in compliance with the Health Product Declaration open Standard. 3) Material Health Certificate or Cradle to Cradle Certification under standard version 3 or later with a Material Health Achievement level at the Bronze level or higher. 4) A Declare product label indicating that all ingredients have been evaluated and disclosed down to 1000 ppm. 5) Cradle to Cradle Material Health Certificate at the Bronze Level or higher. b. Complete "LEED Materials Documentation Sheet" with MRc2 information for each product having an EPD. 4. Ceilings: Provide manufacturers' or third-party certification of testing to and compliance with the California Department of Public Health (CDPH) Standard method v1.2-2017 that includes the following information: a. The exposure scenario used to determine compliance. b. The range of total VOCs after 14 days, measured as specified in the CDPH Standard Method v1.2: 1) 0.5 mg/m^3 or less; 2) Between 0.5 and 5.0 mg/m^3; or 3) 5.0 mg/m^3 or more. c. Laboratory accreditation under ISO/IEC 17025. d. Claims of compliance for wet-applied products must state the amount applied in mass per surface area. e. Complete "LEED Materials Documentation Sheet" with IEQc2 information for ceilings, walls, thermal and acoustical insulation products installed within the waterproofing membrane. D. Samples for Verification: For each component indicated and for each exposed finish required, prepared on Samples of size indicated below: 1. Metal Pans: Set of 12-inch- 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- long Samples of each type, finish, and color. 3. Sound Absorber: Sample of each type matching size of Sample metal pan. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ACOUSTICAL METAL PAN CEILINGS 09 5133 - 3 E. Delegated-Design Submittal: For design of seismic restraints and attachment devices. 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. Suspended ceiling components. 2. Structural members to which suspension systems will be attached. 3. Size and location of access modules for acoustical panels. 4. Items penetrating finished ceiling including the following: a. Lighting fixtures. b. Air outlets and inlets. c. Speakers. d. Sprinklers. e. Access panels. 5. Perimeter moldings. B. Product Test Reports: For each acoustical metal pan ceiling, for tests performed by manufacturer and witnessed by a qualified testing agency. C. Evaluation Reports: For each acoustical metal pan ceiling suspension system. 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 Metal Pans with Sound Absorber: Full-size units equal to 2 percent of quantity installed. 2. Suspension-System Components: Quantity of each grid, exposed molding, and trim equal to 2 percent of quantity installed. 3. Hold-Down Clips: Equal to 2 percent of quantity installed. 1.8 QUALITY ASSURANCE A. Mockups: Build mockups to verify selections made under Sample submittals, to demonstrate aesthetic effects, and to 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 metal pans, suspension-system components, and accessories to Project site in original, unopened packages and store them in a fully enclosed, conditioned space where Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ACOUSTICAL METAL PAN CEILINGS 09 5133 - 4 they are protected against damage from moisture, humidity, temperature extremes, direct sunlight, surface contamination, and other causes. B. Handle acoustical metal pans, suspension-system components, and accessories carefully to avoid damaging units and finishes in any way. PART 2 - PRODUCTS 2.1 LEED REQUIREMENTS A. Environmental Product Declaration (EPD): Provide products with Third Party Environmental Product Declaration (EPD) whenever available. B. Recycled Content: Provide products with the maximum recycled content possible. Minimum recycled content 20 percent. C. Health Product Declaration (HPD): Provide products with publically available material inventories whenever available. D. Ceilings: Ceiling, must be tested and determined compliant in accordance with California Department of Public Health (CDPH) Standard Method v1.2-2017, using the applicable exposure scenario. The default scenario if the private office scenario. 2.2 PERFORMANCE REQUIREMENTS A. Delegated Design: Engage a qualified professional engineer, as defined in Section 01 4000 "Quality Requirements," to design seismic restraints and attachment devices. B. Surface-Burning Characteristics: Comply with ASTM E84; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency. 1. Flame-Spread Index: Comply with ASTM E1264 for Class A materials. 2. Smoke-Developed Index: 450 or less. 2.3 ACOUSTICAL METAL PANS, GENERAL A. Source Limitations: Obtain each type of acoustical metal ceiling pan and supporting suspension system from single source from single manufacturer. B. Acoustical Panel Standard: Provide manufacturer's standard pans of configuration indicated that comply with ASTM E1264 classifications as designated by types, patterns, acoustical ratings, and light reflectances unless otherwise indicated. 1. Mounting Method for Measuring NRC: Type E-400; plenum mounting in which face of test specimen is 15-3/4 inches away from test surface according to ASTM E795. C. 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. 1. Aluminum Sheet: Rolled aluminum sheet, complying with ASTM B209; alloy and temper recommended by aluminum producer and finisher for type of use and finish indicated. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ACOUSTICAL METAL PAN CEILINGS 09 5133 - 5 D. 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 ASTM E84. 1. Bond fabric layer to panels in the factory with manufacturer's standard nonflammable adhesive. E. 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 ASTM E84, and to comply with the following requirements: 1. Plastic Sheet-Wrapped, Mineral-Fiber Insulation: Pads consisting of nonrigid, PVC plastic sheet encapsulating unfaced mineral-fiber insulation complying with ASTM C553, Type I, and as follows: a. Mineral-Fiber Type and Thickness: Glass fiber; 1 inch. b. Mineral-Fiber Density: 3/4 lb/cu. ft. c. Plastic Sheet Thickness and Color: Not less than 0.003 inch; flat black. F. Adhesive: Manufacturer's standard nonflammable adhesive for sound-absorbent fabric and pads. 1. Adhesives shall have a VOC content of 70 g/L or less. 2.4 ALUMINUM PANS FOR ACOUSTICAL METAL PAN CEILING (ACP-3.5) A. Basis-of-Design Product: Subject to compliance with requirements, provide Ceilings Plus Illusions Perforated, Arboreal finish, by Ceilings Plus or a comparable product by one of the following or equal: 1. Armstrong World Industries, Inc. 2. USG Corporation. B. Classification: Units complying with ASTM E1264 for Type VII, perforated aluminum facing (pan) with mineral- or glass-fiber-base backing. 1. Pattern: Pattern C (perforated, small holes) regularly spaced, with uniform perforations of dimension, holes per square foot or inch, and percent open area as selected from manufacturer's full range. a. Provide solid non-perforated borders along each of the four sides of ceiling panels. C. Pan Fabrication: Manufacturer's standard units of size, profile, and edge treatment indicated, formed from metal indicated and finished to comply with requirements indicated. 1. Torsion-Spring-Hinged Pans: Designed to be securely retained in preslotted, exposed suspension grid by torsion springs provided by manufacturer. D. Pan Thickness: Not less than 0.040 inch. E. Pan Edge Detail: Square. F. Pan Joint Detail: Butt. G. Pan Size: As indicated on Drawings. H. Pan Face Finish: Arboreal real wood veneer permanently bonded to aluminum pan including edge returns. Edge banding returns will not be acceptable. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ACOUSTICAL METAL PAN CEILINGS 09 5133 - 6 I. NRC: Not less than 0.70. 2.5 ALUMINUM PANS FOR ACOUSTICAL METAL PAN CEILING (ACP-3.9) A. Basis-of-Design Product: Subject to compliance with requirements, provide USG Geometrix 3-Dimensional Metal Panels by USG Corporation or a comparable product by one of the following or equal: 1. Armstrong World Industries, Inc. 2. Ceilings Plus. B. Classification: Units complying with ASTM E1264 for Type VII, perforated aluminum facing (pan) with mineral- or glass-fiber-base backing. 1. Pattern: Pattern C (perforated, small holes) regularly spaced, with uniform perforations of dimension, holes per square foot or inch, and percent open area as selected from manufacturer's full range. a. Provide solid non-perforated borders along each of the four sides of ceiling panels. C. Pan Fabrication: Manufacturer's standard units of size, profile, and edge treatment indicated, formed from metal indicated and finished to comply with requirements indicated. 1. Wedge Shaped Pans: Tapered wedge design: 5/16 inch to 1-1/4 inch, and 5/16 inch to 2-1/4 inch, and 5/16 inch to 3-1/4 inch, where indicated on Drawings. D. Pan Thickness: Not less than 0.032 inch. E. Pan Edge Detail: Manufacturer's standard edge detail. F. Pan Size: 24 by 24 inches. G. Pan Face Finish: Painted in color selected from manufacturer's full range. H. NRC: Not less than 0.85. 2.6 METAL SUSPENSION SYSTEMS, GENERAL A. Metal Suspension System Standard: Provide manufacturer's standard metal suspension systems of types, structural classifications, and finishes indicated that comply with applicable ASTM C635/C635M requirements. B. Suspension Systems: Provide systems complete with carriers, runners, splice sections, connector clips, alignment clips, leveling clips, hangers, molding, trim, retention clips, load- resisting struts, and other suspension components required to support ceiling units and other ceiling-supported construction. C. Attachment Devices: Size for 5 times the design load indicated in ASTM C635/C635M, Table 1, Direct Hung, unless otherwise indicated. Comply with seismic design requirements. D. Wire Hangers, Braces, and Ties: Provide wires complying with the following requirements: 1. Zinc-Coated, Carbon-Steel Wire: ASTM A641/A641M, Class 1 zinc coating, soft temper. 2. Size: Select wire diameter so its stress at 3 times the hanger design load indicated in ASTM C635/C635M, Table 1, Direct Hung, is less than yield stress of wire, but provide not less than 0.106-inch-diameter wire. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ACOUSTICAL METAL PAN CEILINGS 09 5133 - 7 E. Seismic Stabilizer Bars: Manufacturer's standard perimeter stabilizers designed to accommodate seismic forces. F. Seismic Struts: Manufacturer's standard compression struts designed to accommodate seismic forces. G. Exposed Metal Edge Moldings and Trim: Provide exposed members as indicated or as required to comply with seismic requirements of authorities having jurisdiction, to conceal edges of and penetrations through ceiling, to conceal edges of pans and runners, for fixture trim and adapters, for fasciae at changes in ceiling height, and for other conditions; of metal and finish matching acoustical metal pan ceiling units unless otherwise indicated. 1. For Circular Penetrations of Ceiling: Fabricate edge moldings to diameter required to fit penetration exactly. 2.7 DIRECT-HUNG, STANDARD-GRID, METAL SUSPENSION SYSTEM FOR ACOUSTICAL METAL PAN CEILING (for ACP-3.5) A. Suspension System: For torsion-spring-hinged pans. B. Wide-Face, Capped, Double-Web, Steel Suspension System: Main and cross runners roll formed from cold-rolled steel sheet, prepainted, electrolytic zinc-coated or hot-dip galvanized according to ASTM A653/A653M, G30 coating designation, with prefinished, cold-rolled, 15/16- inch- wide, sheet metal caps on flanges. 1. Structural Classification: Heavy-duty system. 2. End Condition of Cross Runners: Override (stepped) or butt-edge type. 3. Face Design: Flat, flush. 4. Cap Material: Steel cold-rolled sheet. 5. Cap Finish: Painted black. C. Suspension System for Torsion-Spring-Hinged Metal Pans: Provide runners with factory-cut slots fabricated to accept torsion-spring-hinged attachment. 2.8 METAL SUSPENSION SYSTEM (for ACP-3.9) A. Metal Suspension-System Standard: Provide manufacturer's standard, direct-hung, metal suspension system and accessories according to ASTM C 635/C 635M and designated by type, structural classification, and finish indicated. B. Narrow-Face, Capped, Double-Web, Steel Suspension System: Main and cross runners roll formed from cold-rolled steel sheet; prepainted, electrolytically zinc coated, or hot-dip galvanized, G30 coating designation; with prefinished 9/16-inch- wide metal caps on flanges. 1. Structural Classification: Heavy-duty system. 2. End Condition of Cross Runners: Override (stepped) or butt-edge type. 3. Face Design: Flat, flush. 4. Cap Material: Cold-rolled steel. 5. Cap Finish: Painted white. 6. Basis-of-Design Product: Armstrong Suprafine or equal. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ACOUSTICAL METAL PAN CEILINGS 09 5133 - 8 2.9 SOUND ATTENUATION (ACOUSTICAL) INSULATION A. Polypropylene-Encapsulated, Glass-Fiber Acoustical Insulation: ASTM C 665, Type II, Class A (polypropylene-encapsulation material with a flame-spread index of 25 or less); Category 2 (membrane is not a vapor barrier). 1. Thickness: 2 inches. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine substrates, areas, and conditions, including structural framing to which acoustical metal pan ceilings attach or abut, with Installer present, for compliance with requirements specified in this and other Sections that affect ceiling installation and anchorage and with requirements for installation tolerances and other conditions affecting performance of acoustical metal pan ceilings. B. Prepare written report, endorsed by Installer, listing conditions detrimental to performance of the Work. C. Proceed with installation only after unsatisfactory conditions have been corrected. 3.2 PREPARATION A. Measure each ceiling area and establish layout of acoustical metal pans to balance border widths at opposite edges of each ceiling. Avoid using less-than-half-width pans at borders, and comply with layout shown on reflected ceiling plans and coordination drawings. 3.3 INSTALLATION A. General: Install acoustical metal pan ceiling assemblies to comply with ASTM C636/C636M, seismic design requirements, and manufacturer's written instructions. 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 to miss obstructions; offset resulting horizontal forces by bracing, countersplaying, 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 do not deteriorate or otherwise fail due to age, corrosion, or elevated temperatures. 5. Do not support ceilings directly from permanent metal forms or floor deck. Fasten hangers to cast-in-place hanger inserts, postinstalled mechanical or adhesive anchors, or power-actuated fasteners that extend through forms into concrete. 6. 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. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ACOUSTICAL METAL PAN CEILINGS 09 5133 - 9 7. Do not attach hangers to steel deck tabs. 8. Do not attach hangers to steel roof deck. Attach hangers to structural members. 9. 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. 10. Size supplemental suspension members and hangers to support ceiling loads within performance limits established by referenced standards and publications. C. Install edge moldings and trim of type indicated at perimeter of acoustical ceiling area and where necessary to conceal edges of acoustical metal pans. 1. Screw attach moldings to substrate at intervals not more than 16 inches o.c. 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. 2. Do not use exposed fasteners, including pop rivets, on moldings and trim. D. Install suspension-system runners so they are square and securely interlocked with one another. Remove and replace dented, bent, or kinked members. E. Cut acoustical metal pan units for accurate fit at borders and at interruptions and penetrations by other work through ceilings. Stiffen edges of cut units as required to eliminate evidence of buckling or variations in flatness exceeding referenced standards for stretcher-leveled metal sheet. Cut and treat edges to comply with manufacturer's written instructions. F. Install acoustical metal pans in coordination with suspension system and exposed moldings and trim. Comply with manufacturer's installation tolerances. 1. For torsion-spring-hinged pans, position pans according to manufacturer's written instructions. 2. For lay-in, square-edge pans, install pans with edges fully hidden from view by flanges of suspension-system runners and moldings. 3. Align joints in adjacent courses to form uniform, straight joints parallel to room axis in both directions unless otherwise indicated. 4. Fit adjoining units to form flush, tight joints. 5. Install sound-absorbent pads (sound attenuation acoustical insulation) in perforated metal pans. 3.4 CLEANING A. Clean exposed surfaces of acoustical metal pan ceilings, including trim and edge moldings, after removing strippable, temporary protective covering, if any. Comply with manufacturer's written instructions for stripping of temporary protective covering, cleaning, and touchup of minor finish damage. Remove and replace ceiling components that cannot be successfully cleaned and repaired to permanently eliminate evidence of damage, including dented and bent units. END OF SECTION (THIS PAGE IS BLANK)