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1 09510 ACOUSTICAL CEILINGS SPECIFIER: CSI MasterFormat 2004 number PART 1 GENERAL 1.1 SUMMARY A. Related Sections: Metal Studs, Lath, Suspension Ceilings, Plaster, and Stucco Ceramic Tile Acoustical Wall and Ceiling Treatment. 4. Divisions 15 and 16: Items of Mechanical and Electrical work to be installed in acoustical ceiling grids. 1.2 REFERENCES A. American Society for Testing and Materials (ASTM), latest edition: 1. A653 Standard Specification for Steel Sheet, Zinc-coated (Galvanized) or Zinc-iron Alloy-coated (Galvannealed) by the Hot-dip Process. 2. C635 Standard Specification for the Manufacture, Performance, and Testing of Metal Suspension Systems for Acoustical Tile and Lay-In Panel Ceilings. 3. C636 Standard Practice for Installation of Metal Ceiling Suspension Systems for Acoustical Tile and Lay-In Panels. 4. E84 Standard Test Method for Surface Burning Characteristics of Building Materials 5. E1264 Standard Classification for Acoustical Ceiling Products. B. Ceiling and Interior Systems Contractors Association (CISCA) publication (latest edition): Acoustical Ceilings - Use and Practice. C. Underwriters Laboratories (UL) fire rating listings and classifications. D. Florida Building Code (FBC). 1.3 SUBMITTALS A. Submit properly identified product data, including properties of lay-in panels, fire tests, details of suspension grid system, and installation instructions for review before starting work. B. Shop Drawings: As may be required by A/E. Coordinate grid erection drawings with lighting fixtures, air-conditioning outlets, access panels, sound system, and other openings and irregularities. C. Samples: Submit two identified samples of each of the following for review and selection by A/E: Project No. SPECIFICATION GUIDELINES

2 1. Exposed grid suspension system, including main runners, cross runners, and edge trim. 2. Acoustical lay-in panel, 12 inches square piece. 1.4 DELIVERY, STORAGE, AND HANDLING A. Deliver acoustical ceiling units and suspension system components to Project site in original, unopened packages. 1. Store in a clean dry fully enclosed space and protect against damage from moisture, direct sunlight, surface contamination, and other causes. B. Before installing acoustical ceiling units, permit them to reach room temperature and stabilized moisture content. C. Handle acoustical ceiling units carefully to avoid chipping edges or damaging units in any way. 1.5 QUALITY ASSURANCE A. Installer: Company with three years minimum documented experience. B. Fire Performance Characteristics: Provide acoustical ceiling components that are identical to those tested for the following fire performance characteristics, according to ASTM test method indicated, by the UL or other testing and inspecting agency acceptable to authorities having jurisdiction. Identify acoustical ceiling components with appropriate marking of applicable testing and inspecting agency. C. Surface Burning Characteristics: As follows, tested per ASTM E Flame Spread: 25 or less. 2. Smoke Developed: 50 or less. D. Tolerances for Ceiling Grid Installation: 1. Free of irregularities and level to within 1/8 inch in 12 feet. 2. Maximum deflection: 1/360 of span. E. Installation of Acoustical Ceiling Suspension Systems: ASTM C SEQUENCING and SCHEDULING A. Do not install acoustical ceilings until building is enclosed, air conditioning is working, dustgenerating activities have terminated, and overhead work is completed, tested and approved. B. Schedule installation of acoustic units after interior wet work is dry. Project No. SPECIFICATION GUIDELINES

3 1.7 EXTRA STOCK A. Furnish extra materials described below matching installed products, packaged with protective covering for storage, and are identified with labels describing contents. 1. Acoustical Ceiling Units: Full size units equal to 1% of amount installed. PART 2 PRODUCTS 2.1 MATERIALS A. Acoustical Lay-in Panels, Mineral Fiber Type: inches x 24 inches. 2. Complying with ASTM E1264, Class A, Type III, Form 2, square edged. 3. Nominal Thickness: 5/8". 4. Finish: Factory applied, washable white. a. Directional Panels: 1) Armstrong: Minaboard #756 Fissured lay-in panels. 2) CertainTeed: Hytone FH-157 Fissuretone II lay-in panels. 3) USG Interiors: Auratone #560 Fissured lay-in panel. b. Non-directional Panels: 1) Armstrong: Cortega #770 Fissured lay-in panels. 2) CertainTeed : Baroque Fissured lay-in panels. 3) USG Interiors: Auratone Radar #2110 Fissured lay-in panel. B. Acoustical Lay-in Panels, Fire Rated Mineral Fiber Type: inches x 24 inches. 2. Complying with ASTM E1264, Fire Rated, Class A, Type III, Form 2, square edged. 3. Nominal Thickness: 5/8". 4. Finish: Factory applied, washable white. 5. Weight: 1 pound per square foot minimum. 6. Manufacturers: a. Directional: 1) Armstrong: Minaboard #896 Fissured Fire Guard lay-in panels. 2) CertainTeed: II PFH-157 Protectone lay-in panels. 3) USG Interiors: #585 Fissured Fire Code lay-in panels. b. Non-directional: 1) Armstrong: Cortega #824 Fissured Fire Guard lay-in panels. 2) CertainTeed: Performa School Board PFFSB-157 Protectone lay-in panels. 3) USG Interiors: Radar #2115 Fissured Fire Code lay-in panels. Project No. SPECIFICATION GUIDELINES

4 C. Vinyl Faced Lay-in Panels, Gypsum Type: inches x 24 inches. 2. Gypsum, complying with ASTM E1264, Class A, Type III, Form Nominal Thickness: 1/2". 4. Finish: Factory applied 0.002" vinyl, washable white. a. CertainTeed: Performa Vinylrock 1142-CRF-1 lay-in panels. b. USG Interiors: Clean Room #3260 Stipple pattern lay-in panels. D. Acoustical Lay-in Panels, Wood Fiber Type: 1. Wood fiber, complying with ASTM E1264, Class A, Type XX, square edge. 2. Minimum Thickness: 1-1/2". 3. Size: 23-3/4" x 47-3/4". 4. Finish: Factory applied, white. a. Tectum Inc. "Tectum". b. Or other A/E accepted equivalent. E. Hangers: 12 gage (0.109" diameter) annealed steel wire, galvanized. F. Exposed Suspension Grids for Acoustical Lay-in Panels: 1. 2 feet x 2 feet grid pattern with steel caps for exposed grid tee and angle members complying with ASTM C635, zinc-coated or hot-dipped galvanized complying with A653, factory painted steel parts with factory applied white baked enamel or polyester finish. SPECIFIER: Use one of the 3 following suspension systems at cafeteria kitchens, salad bars, snack bars, and serving areas feet x 2 feet grid pattern, complying with ASTM C635, hot-dipped galvanized steel tee and cap, painted cap, and stainless steel clips feet x 2 feet grid pattern, complying with ASTM C635, hot-dipped galvanized steel tee, painted aluminum cap, and stainless steel clips feet x 2 feet grid pattern, complying with ASTM C635, aluminum tee, painted aluminum cap, and stainless steel clips. a. Armstrong. b. CertainTeed. c. ROCKFON, LLC. d. USG Donn, by USG Interiors, Inc. Project No. SPECIFICATION GUIDELINES

5 PART 3 EXECUTION 3.1 INSTALLATION A. Powder and pneumatic actuated (shot-type) fasteners shall not be used to provide support for construction elements located overhead. 1. Coordinate and provide inserts, anchors, bolts, hangers, or other means to support ceilings suspended from structure. 2. If inserts have been omitted from the concrete structure, drill structure as needed to support equipment only with A/E's prior approval for drilling locations. B. Install specified suspension system and acoustical lay-in panels according to ASTM C636 and CISCA Publication "Acoustical Ceilings - Use and Practice", and applicable manufacturer's printed instructions. 1. Complete partitions indicated to be extended to overhead construction with finishes applied before installation of ceilings abutting such partitions. 2. Provide one hanger minimum for each 16 square feet of ceiling. a. Locate hanger wire not more than 1 foot away from main runners resting on wall trim. C. Acoustical Lay-in Panels: 1. Fit acoustical lay-in panels to grid accurately, without dented, broken, cracked, chipped, or soiled surfaces. 2. A cut panel shall be a size that will not expose an edge when the panel is slid to the opposite side. D. Light Fixtures: 1. Fit acoustical lay-in panels accurately around surface mounted and stem mounted electrical fixture outlets. 2. Adequately support tees supporting light fixtures by hanger wires so grid is level after light fixture installation. E. Alignment: a. Provide a hanger wire within 3 inches of each recessed lay-in light fixture corner. 1. Align suspension members for true level surfaces and straight lines. Run joints and exposed grid members parallel to the room axis in both directions. 2. Install exposed suspension grids per installers accepted grid layout drawings, properly coordinated with air conditioning and electrical trades. F. Border Balance: 1. Balance border areas to avoid acoustical units less than 1/2 unit wide. G. Textured or Patterned Acoustical Panels: Install in pattern in one direction including grain of panels with alternating grain, unless otherwise directed in writing by A/E. Project No. SPECIFICATION GUIDELINES

6 3.2 ADJUSTING AND CLEANING A. Replace dirty or discolored acoustical panel surfaces following erection and leave free from defects. B. Remove damaged or improperly installed acoustical panels and replace. END OF SECTION Project No. SPECIFICATION GUIDELINES

A. This Section includes acoustical panel ceilings installed with exposed suspension systems.

A. This Section includes acoustical panel ceilings installed with exposed suspension systems. SECTION 09511 ACOUSTICAL PANEL CEILINGS PART 1 - GENERAL 1.01 RELATED DOCUMENTS A. Drawings and general provisions of Contract, including General and Supplementary Conditions and Division 1 Specification