SECTION 09510 ACOUSTICAL CEILINGS PART 1 GENERAL 1.01 SUMMARY A. Related Sections: 1. 09200 - Metal Studs, Lath, Suspension Ceilings, Plaster, and Stucco. 2. 09310 - Ceramic Tile. 1.02 REFERENCES A. American Society for Testing and Materials (ASTM): 1. A653-96 Standard Specification for Steel Sheet, Zinccoated (Galvanized) or Zinc-iron Alloycoated (Galvannealed) by the Hot-dip Process. 2. C635-95 Specification for the Manufacture, Performance, and Testing of Metal Suspension Systems for Acoustical Tile and Lay-In Panel Ceilings. 3. C636-96 Practice for Installation of Metal Ceiling Suspension Systems for Acoustical Tile and Lay-In Panels. 4. E1264-96 Classification for Acoustical Ceiling Products. B. Ceiling and Interior Systems Contractors Association (CISCA) publication (current edition): Acoustical Ceilings - Use and Practice. C. Underwriters Laboratories (UL) fire rating listings and classifications. 1.03 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. Project No. SPECIFICATION GUIDELINES 09510-1
C. Samples: Submit identified samples of each of the following for review and selection: 1. Exposed grid suspension system with angle. 2. Acoustical lay-in panel, 12 inches square piece. PART 2 PRODUCTS 2.01 MATERIALS A. Acoustical Lay-in Panels, Mineral Fiber Type: 2. Complying with ASTM E1264, Class A, Type 3, Form 2, square edged. 3. 4. Nominal Thickness: 5/8". Finish: Factory applied, washable white. a. Armstrong: Minaboard #756 Fissured lay-in b. Celotex: Hytone DMRF-157 Fissuretone II lay-in c. USG Interiors: Auratone #560 Fissured lay-in panel. B. Acoustical Lay-in Panels, Fire Rated Mineral Fiber Type: 2. Complying with ASTM E1264-90, Fire Rated, Class A, Type 3, 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. Armstrong: Minaboard #896 Fissured Fire Guard layin b. Celotex: Hytone Fissuretone II PDRF-157 Protectone lay-in c. USG Interiors: #585 Fissured Fire Code lay-in C. Vinyl Faced Lay-in Panels, Gypsum Type: 2. Gypsum, complying with ASTM E1264, Class 3, Type 3, Form A. 3. Nominal Thickness: 1/2". 4. Finish: Factory applied 0.002" vinyl, washable white. Project No. SPECIFICATION GUIDELINES 09510-2
a. Celotex: Clean Room VTS-857 Vinyltone lay-in panels b. USG Interiors: Clean Room #3260 Stipple pattern lay-in 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 accepted equivalent. E. Acoustic ceiling baffles (sound absorbers with noncorrosive grommets) shall be used in active spaces such as gymnasiums, shops, etc. 1. Size: 2 feet x 4 feet x 2 inches. 2. Finish: UL listed, "Nubby" glass cloth fabric, or accepted equivalent. Painted "Nubby" cloth is acceptable if painting is done by the manufacturer and the NRC factor has not been affected by the process. 3. Color: White or standard colors offered by the manufacturer, as selected by the A/E. 4. Noise Reduction Coefficient (NRC): 0.90 to 1.0. a. Capaul Corporation. b. Metal Building Interior Products Co.: Cloud-Lite. c. Sound Concepts, Canada Inc. F. Hangers: 12 gage (0.109" diameter) annealed steel wire, galvanized. G. 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. ****** ***** **** *** ** * ** *** **** ***** ****** Note to Specifier: Use one of the 3 following suspension systems at cafeteria kitchens, salad bars, snack bars, and serving areas. ****** ***** **** *** ** * ** *** **** ***** ****** Project No. SPECIFICATION GUIDELINES 09510-3
2. 2 feet x 2 feet grid pattern, complying with ASTM C635, hot-dipped galvanized steel tee and cap, painted cap, and stainless steel clips. 3. 2 feet x 2 feet grid pattern, complying with ASTM C635, hot-dipped galvanized steel tee, painted aluminum cap, and stainless steel clips. 4. 2 feet x 2 feet grid pattern, complying with ASTM C635, aluminum tee, painted aluminum cap, and stainless steel clips. a. Armstrong. b. Celotex. c. Chicago Metallic Corporation. d. USG Interiors, Inc. (Donn). PART 3 EXECUTION 3.01 INSTALLATION A. Powder activated fasteners are not allowed. 1. Coordinate and provide inserts, anchors, bolts, hangers, or other means to support ceilings suspended from structure. 2. Drill structure as needed to support equipment if inserts have been omitted from the concrete structure. 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 Project No. SPECIFICATION GUIDELINES 09510-4
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. 3.02 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 09510-5