1、04-04M 09546-1 SECTION 09546 LINEAR METAL CEILINGS SPEC WRITER NOTE: 1. Delete between /-/if not applicable to project. Also delete any other item or paragraph not applicable in section and renumber paragraphs. 2. Coordinate with Section 09050, INTERIOR/EXTERIOR FINISHES, MATERIALS, AND FINISH SCHED
2、ULES, to define texture, patterns, and colors other than white with locations in room finish schedule and reflective ceiling plans. 3. Insure reflective ceiling plans show panel sizes, layouts including light fixtures, fire protection sprinkler heads, HVAC air supply and return diffusers and grilles
3、, and ceiling areas with unusual conditions. PART 1 - GENERAL 1.1 DESCRIPTION A. Section Includes: 1. Suspended metal grid ceiling system including trim. 2. Decorative, linear, formed metal ceiling panels, mechanically mounted on a ceiling suspension system. 3. Accessories: a. Closures, trim, edge m
4、olding and all other items required to provide complete installation. B. Unit size, texture, finish, and color as specified. C. Location and extent of acoustical treatment as shown. 1.2 RELATED WORK A. Batt, Blanket and Sound Isolation Insulation: Section 07210, BUILDING INSULATION. A. Access Doors:
5、 Section 08305, ACCESS DOORS. B. Finish Color: Section 09050, INTERIOR/EXTERIOR FINISHES, MATERIALS, AND C. Acoustical Ceilings: Section 09510, ACOUSTICAL CEILING. D. Sprinkler System: Section 15500, FIRE PROTECTION. E. Air Outlets and Inlets: Division 15, MECHANICAL SYSTEMS. F. Interior Lighting: S
6、ection 16510, BUILDING LIGHTING, INTERIOR. 1.3 QUALITY CONTROL A. Qualifications: 1. Approval required of products or service of proposed manufacturer, suppliers and installers, and shall be based upon submission by Contractor of certification that: Provided by IHSNot for ResaleNo reproduction or ne
7、tworking permitted without license from IHS-,-,-04-04M 09546-2 a. Manufacturer regularly and presently, manufactures and installs linear metal ceiling systems and related accessories as one of its principal products and has a record of successful in-service performance. b. Accessories required for l
8、inear metal ceiling systems shall be manufacturers standard or other systems compatible with linear metal ceiling system manufacturers material. Items shall be of materials and construction which shall provide desired functional service. 2. Installer: Approved in writing by manufacturer. B. Coordina
9、tion of Work: Coordinate layout and installation of linear metal ceiling units and suspension system components with other work supported by, or penetrating through, ceilings, including light fixtures, HVAC equipment, fire-suppression system components (if any), and partition system (if any): 1. Spr
10、inkler heads and light fixtures: Shall typically penetrate center of a panel width. 2. HVAC Air Outlets and Inlets: Shall be planned to occur within center of panel systems or provide for equal distance on each side parallel to length of panels SPEC WRITER NOTE: Include article below if seismic desi
11、gn for ceiling system is required. C. Seismic Design: 1. Design suspension system for seismic considerations under direct supervision of Professional Structural Engineer experienced in design of this work and licensed / at place where project is located/ /in state of / /. 1.4 SUBMITTALS A. Submit in
12、 accordance with Section 01340, SAMPLES AND SHOP DRAWINGS. B. Manufacturers Literature and Product Data: 1. Manufacturers standard details and fabrication methods. 2. Data on finishing, hardware, components, and accessories. 3. Recommendations for maintenance and cleaning of finish surfaces. C. Shop
13、 Drawings: 1. Submit complete composite fabrication, and installation shop drawings including associated components. 2. Identify panel sections, baffles, edge trim, lighting trim, air diffuser sections and trim, sprinkler head locations and trim, other component parts, not included in manufacturers
14、product data, by name Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-04-04M 09546-3 and material and showing design, construction, installation, and anchorage. 3. Layout and installation details, including relation to adjacent work such as walls and
15、 bulkheads. 4. Composite reflected ceiling plans, at 1:50 (1/4 inch) scale, showing location of all accessories, mechanical and electrical components. Indicate following: a. Joint pattern. b. Ceiling suspension members. c. Method of attaching hangers to building structure. d. Ceiling-mounted items i
16、ncluding light fixtures, air outlets and inlets, speakers, sprinkler heads, and access panels. Special moldings at walls, column penetrations, and other junctures with adjoining construction. 5. Detail sections of typical composite members, at wall surfaces, mechanical diffusers and grilles, sprinkl
17、er heads, and light fixtures. 6. Provisions for expansion and contraction. 7. Anchors and reinforcements. D. Samples: 1. Submit pairs of samples of each specified color and finish on 300 mm (12 inch) long sections of extrusions or formed shapes for following: a. Linear metal panel. b. Each exposed m
18、olding and trim sections. c. Suspension system members. d. Filler strips. e. Insulation. f. End cap. 2. Where normal color variations are anticipated, include 2 units in set indicating extreme limits of color variations. 3. Integrally Colored Anodized or Prefinished Aluminum: a. Sheet not less than
19、200 mm by 250 mm (eight inches by ten inches). E. Certificates: 1. Stating that linear metal ceiling system material has been given specified thickness of anodizing or organic coating finish. 2. Indicating manufacturers and installers meet qualifications as specified. 3. Submit list of equivalent si
20、ze installations which have had satisfactory operation. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-04-04M 09546-4 1.5 DELIVERY, STORAGE AND HANDLING A. Materials: Deliver to site in manufacturers original unopened containers with brand name and
21、type clearly marked. B. Materials: Carefully handle and store in dry, watertight enclosures. C. Immediately before installation, linear metal ceiling units shall be stored for not less than 48 hours at same temperature and relative humidity as space where they will be installed to assure temperature
22、 and moisture conditions in accordance with manufacturers recommendations. 1.6 APPLICABLE PUBLICATIONS A. Publications listed below form a part of this specification to extent referenced. Publications are referred to in text by basic designation only. B. American Architectural Manufacturers Associat
23、ion (AAMA): AAMA 605-98.High Performance Organic Coatings on Architectural Extrusions and Panels. C. American Society for Testing and Materials (ASTM): A641/641M-03Zinc-coated (Galvanized) Carbon Steel Wire. A653/A653M-03.Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed)
24、 by Hot-Dip Process. B209/B209M-02.Aluminum and Aluminum-Alloy Sheet and Plate. C635-00.Manufacture, Performance, and Testing of Metal Suspension Systems for Acoustical Tile and Lay-In Panel Ceilings. C636-03.Installation of Metal Ceiling Suspension Systems for Acoustical Tile and Lay-In Panels. C66
25、5-01.Mineral-Fiber Blanket Thermal Insulation for Light Frame Construction and Manufactured Housing. E90-02Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions. E580-02.Application of Ceiling Suspension Systems for Acoustical Tile and Lay-in Panels in Areas Requiring Sei
26、smic Restraint. D. National Association of Architectural Metal Manufacturers (NAAMM): Metal Finishes Manual (1988) 1.7 ENVIRONMENTAL REQUIREMENTS Uniform temperature of not less than 16 C, (60 F) nor more than 27 C, (80 F) and a relative humidity of not more than 70 percent shall be maintained for a
27、 period of 48 hours before, during, and for 48 hours Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-04-04M 09546-5 after installation of linear metal ceiling units. After above period, room temperature shall not fall below 13 C (55 F). 1.8 SCHEDULIN
28、G Interior finish work such as plastering, gypsum board finishing, painting, concrete and terrazzo work shall be complete and dry before installation. Mechanical, electrical, and other work above ceiling line shall be completed and heating, ventilating, and air conditioning systems shall be installe
29、d and operating in order to maintain temperature and humidity requirements. 1.9 GUARANTY Guaranty: Submit written guaranty, in accordance with General Condition requirements except that guarantee period shall be extended to two (2) years. PART 2 - PRODUCTS 2.1 MATERIALS A. Linear Metal Ceiling Syste
30、m, General: 1. Sheet Metal Characteristics: Form metal panels from sheet metal free from surface blemishes where exposed to view in finished unit. Do not use materials whose exposed surfaces exhibit pitting, seam marks, roller marks, stains, discolorations, or other imperfections. 2. Fabrication: Di
31、e-form linear metal panels into units standard with manufacturer and finished as specified herein. SPEC WRITER NOTE: Coordinate acoustical insulation sound absorptive pad material type, thickness, facing and width of units required for use herein with Section 07210, BUILDING INSULATION. Coordinate a
32、vailability of pad material and thickness with manufacturer at each time of editing this Section. 3. Sound-Absorptive Pads: Width and length to fill completely between carriers, joined at center of a panel, and to provide an STC rating of / / in accordance with ASTM E90. Refer to Section 07210, BUIL
33、DING INSULATION for acoustical insulation sound absorptive pad type and thickness to be used based on STC ratings. B. Accessories: /Stabilizer bars, / /clips, / /splices,/ /hold down clips, / /and/ / / as required for suspended grid system. C. Linear Metal Panels: 1. General: Formed to snap on and b
34、e securely retained on carriers without separate fasteners. SPEC. WRITER NOTE: Select type(s) and thickness required from below. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-04-04M 09546-6 2. Aluminum Panels: ASTM B209/B209m, roll-formed sheet, al
35、loy 3005-H26, complying with following requirements: a. Minimum Nominal Thickness: /0.40 mm (0.020 inch)/ /0.75 mm (0.027 inch)/ /1.0 mm (0.040 inch)/. 3. Panel Performance: As follows: a. Light Reflectance Coefficient: LR /0.75/ /0.70/ / /. b. Noise Reduction Coefficient: NRC /0.75/ /0.85/ / /. D.
36、Suspension Systems, General: 1. Standard for Metal Suspension Systems: Provide manufacturers standard types, structural classifications, and finishes indicated that comply with ASTM C635 requirements. 2. Anchors: Type as recommended by manufacturer. Size for five times design load indicated in ASTM
37、C635, Table 1, Direct Hung, unless otherwise indicated. E. Wire for Carriers, Hangers, and Ties: ASTM A641/A641m, Class 1, zinc coating, soft temper. 1. Gage: Minimum 12 gage. Shall support a minimum of 1330 N, (300 pounds ultimate vertical load without failure of supporting material or attachment.
38、F. Hanger Rods: Mild steel, zinc coated, or protected with rust-inhibitive paint. G. Flat Hangers: Mild steel, zinc coated, or protected with rust-inhibitive paint. H. Angle Hangers: Angles with legs not less than 22 mm (7/8 inch) wide, formed with 0.82 mm (0.0365 inch) galvanized steel sheet comply
39、ing with ASTM A653/A653m, Coating Designation G90, with bolted connections and 7.6 mm (5/16 inch) diameter bolts. I. Edge Moldings and Trim: Manufacturers standard molding for edges and penetrations of ceiling. J. Carriers: Comply with ASTM A653/A653m, cold-rolled, electro-galvanized, 0.375 mm (0.02
40、09 inch) (25 gage) minimum nominal thickness steel. K. Miscellaneous Components and Materials: 1. Access Doors: Refer to Section 08305, ACCESS DOORS for requirements. Access doors, required for use in linear metal ceiling system, shall match adjacent ceiling panel units and shall be designed and equ
41、ipped with suitable framing and fastenings for removal and replacement without damage. Provide locking device for this type access door as used in general access doors. L. Access Identification: Refer to Section 09900, PAINTING for requirements of identification markers for use, with various mechani
42、cal systems above ceiling, under this section. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-04-04M 09546-7 2.2 FINISHES A. Comply with NAAMM “Metal Finishes Manual”. B. Protect mechanical finishes on exposed surfaces from damage by application of
43、strippable, temporary protective covering before shipment. C. Appearance of Finished Work: Variations in appearance of abutting or adjacent ceiling units not acceptable. Noticeable variations in same piece not acceptable. D. Aluminum Finishes: 1. Lacquered Mill Finish: AA-M10C10R1X. a. Organic Coati
44、ng: Manufacturers standard, clear, organic coating. 2. Class II, Clear, Satin-Anodized Finish: AA-M32C12A212. Anodic Coating: protective and decorative, clear film; coating thickness: .0052 mm (0.2 mil minimum). 3. Class II, Clear, Mirror-Anodized Finish: AA-M21C12A212. Anodic Coating: protective an
45、d decorative, clear film; coating thickness: .0052 mm (0.2 mil minimum). 4. High-Performance, Organic Coating: Comply with AAMA 605.2. 5. Color and Gloss: Refer to Section 09050, INTERIOR/EXTERIOR FINISHES, MATERIALS, AND FINISH SCHEDULE. SPEC. WRITER NOTE: Touch-up paint may be required when field
46、cutting and exposing cut edges or ends of galvanized members. E. Touch-up Paint For Concealed Items: / Zinc rich /, / Zinc oxide /, / / type. PART 3 - EXECUTION 3.1 INSPECTION A. Ceiling Areas: Conform with details, dimensions and tolerances shown on approved linear metal ceiling system composite re
47、flected ceiling plan shop drawings. B. Conditions which may adversely affect linear metal ceiling system installation shall be brought to Contractors attention, for repair, prior to commencement of linear metal ceiling system installation. Do not start ceiling installation until affected area has be
48、en repaired to Installers satisfaction. C. Where linear metal ceiling system is installed adjacent to masonry, washdown of adjacent masonry shall be completed prior to erection of ceiling system to prevent damage to material finish by cleaning materials. Provided by IHSNot for ResaleNo reproduction
49、or networking permitted without license from IHS-,-,-04-04M 09546-8 3.2 PREPARATION Measure each ceiling area and establish layout of linear metal panel units to balance border widths at opposite edges of each ceiling. Avoid using units less than half wide at borders. 3.3 INSTALLATION SPEC. WRITER NOTE: Retain reference to ASTM E580 where seismic restraint is required. A.
