095113.pdf

095113 - 1 ACOUSTICAL PANEL

CEILINGS

SECTION 095113 - ACOUSTICAL PANEL CEILINGS

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. Section includes acoustical panels and exposed suspension systems for ceilings.

1.3 ACTION SUBMITTALS

A. Product Data: For each type of product indicated including physical characteristics and performance criteria.

1.4 CLOSEOUT SUBMITTALS

A. Provide manufacturer’s requirement for maintenance of washable acoustical ceiling panels as part of the Operation and Maintenance Manual as specified in Section 017823.

PART 2 - PRODUCTS

2.1 ACOUSTICAL PANELS (ACP-1)

A. Manufacturer and Product: (No Substitution)

1. Manufacturer: Armstrong

2. Product: Cirrus Open Plan; Item No. 556

B. Physical Characteristics

1. Type and Form: Type III and Form 1 per ASTM E 1264

2. Pattern: E I C

3. Size: 600mm x 600mm (24-inch x 24-inch)

4. Thickness: 22mm (7/8-inch)

5. Edge: Angled Tegular

6. Surface Finish: Factory-applied latex paint

7. Surface Finish Color: White

C. Performance Criteria

1. Noise Reduction Coefficient (NRC): 0.75

2. Ceiling Attenuation Class (CAC): 35

3. Articulation Class (AC): 170

4. Fire Rating: Class A (per ASTM E84)

5. Flame Spread Index: 25 or less

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6. Smoke Developed Index: 50 or less

7. Light Reflectance: 0.85

8. Sag Resistance: Warranted to withstand relative humidity of up to 95% at 49° C

(120°F) without sagging, warping, or delaminating for 10 years.

2.2 ACOUSTICAL PANELS (ACP-2)

A. Manufacturer and Product: (No Substitution)

1. Manufacturer: Armstrong

2. Product: Metalworks Concealed; Item No. 6664M10SG

B. Physical Characteristics

1. Size: 600mm x 2440mm (24-inch x 96-inch)

2. Thickness: 16mm (5/8-inch)

3. Material: Aluminum composite – 14mm (0.57-inch

4. Texture: Smooth

5. Surface Finish: Factory-applied powder-coated finish

6. Surface Finish Color: Silver Grey (SG)

C. Performance Criteria

1. Noise Reduction Coefficient (NRC): 0.80

2. Fire Rating: Class A (per ASTM E84)

3. Flame Spread Index: 25 or less

D. Panel Accessories

1. Concealed Trim at Exposed Edges: 6656M1SG

2. Slip-on Molding: 7842ASG

2.3 ACOUSTICAL PANELS (ACP-3)

A. Manufacturer and Product: (No Substitution)

1. Manufacturer: Armstrong

2. Product: Optima Health Zone; Item No. 3214

B. Physical Characteristics

1. Type and Form: Type XII and Form 2 per ASTM E 1264

2. Pattern: E

3. Size: 600mm x 600mm (24-inch x 24-inch)

4. Thickness: 25mm (1-inch)

5. Edge: Square Tegular

6. Surface Finish: DuraBrite with factory-applied latex paint

7. Surface Finish Color: White

C. Performance Criteria

1. Noise Reduction Coefficient (NRC): 0.95

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2. Articulation Class (AC): 190

3. Fire Rating: Class A (per ASTM E84)

4. Flame Spread Index: 25 or less

5. Smoke Developed Index: 50 or less

6. Light Reflectance: 0.86

7. Sag Resistance: Warranted to withstand relative humidity of up to 95% at 49° C

(120° F) without sagging, warping, or delaminating for 10 years.

2.4 ACOUSTICAL CEILING BLADES (ACB-1/2)

A. Manufacturer and Product:

1. Manufacturer: Armstrong

2. Product: Soundscapes Blades

B. Physical Characteristics

1. Surface Texture: Smooth

2. Composition: Fiberglass

3. Size and color: See Architectural Finish Schedule on Drawings.

C. Performance Criteria

1. Fire Rating: Class A (per ASTM E84)

2. Flame Spread Index: 25 or less

3. Smoke Developed Index: 50 or less

4. Light Reflectance: 0.90

2.5 CEILING SUSPENSION SYSTEM

A. Recycled Content: Postconsumer recycled content plus one-half of preconsumer recycled content not less than 25 percent.

B. Manufacturer and Product: (No Substitution)

1. At ACP-1: Armstrong; 24mm (15/16”) PRELUDE

2. At ACP-2: Armstrong; 24mm (15/16”) PRELUDE XL

3. At ACP-3: Armstrong; 24mm (15/16”) PRELUDE PLUS XL Stainless Steel

4. AT ACB-1/2: Armstrong; Individual 4-point Suspension Hanging Kit

5. Color: White.

C. Attachment Devices: Sized for 5 times the design load indicated in ASTM C 635, Table 1, Direct Hung, unless otherwise indicated.

D. Wire Hangers, Braces, and Ties: Zinc-coated carbon-steel wire; ASTM A 641/A 641M, Class 1 zinc coating, soft temper.

1. Size: Provide yield strength at least 3 times the hanger design load (ASTM C 635, Table 1, Direct Hung), but not less than 2.69-mm- (0.106-inch-) diameter wire.

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E. Hold-Down Clips: Manufacturer's standard product; spaced 610 mm (24 inches) o.c. on all cross tees.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Comply with ASTM C 636 and seismic design requirements indicated, per manufacturer's written instructions and CISCA's "Ceiling Systems Handbook."

B. Measure each ceiling area and center panels in space.

C. Suspend ceiling hangers from building's structural members, plumb and free from contact with insulation or other objects within ceiling plenum. Splay hangers only where required to miss obstructions; offset resulting horizontal forces by bracing, countersplaying, or other equally effective means. Where width of ducts and other construction within ceiling plenum produces hanger spacing that interfere with location of hangers, use trapezes or equivalent devices. 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.

1. Do not support ceilings directly from permanent metal forms or floor deck; anchor into concrete slabs.

2. Do not attach hangers to steel deck tabs or to steel roof deck.

D. Install edge moldings and trim of type indicated at perimeter of acoustical ceiling area and where necessary to conceal edges of acoustical panels. Screw attach moldings to substrate at intervals not more than 406 mm (16 inches) o.c. and not more than 76 mm (3 inches) from ends, leveling with ceiling suspension system to a tolerance of 3 mm (1/8 inch) in 3658 mm (12 feet). Miter corners accurately and connect securely.

E. Install suspension system runners so they are square and securely interlocked with one another. Remove and replace dented, bent, or kinked members.

F. Install acoustical panels with undamaged edges and fit accurately into suspension system runners and edge moldings. Scribe and cut panels at borders and penetrations to provide a neat, precise fit.

END OF SECTION 095113