Specs

Bridgestone Retail Operations, LLC
PROJECT MANUAL
Version: January 2012
SECTION 09511
SUSPENDED ACOUSTICAL CEILINGS
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Suspended metal grid ceiling system.
B. Acoustical units.
1.02 SUBMITTALS
A. Sustainable Submittals: No submittals are required. Refer to Section 01352 for Sustainable
recommendations on this project. Refer to Section 01352 for recommended VOC limits.
PART 2 PRODUCTS
2.01 MANUFACTURERS
A. Ceiling Panels:
1. Armstrong World Industries, Inc.
2. Or approved equal.
B. Suspension Systems:
1. Armstrong World Industries, Inc.
2. Or approved equal.
2.02 ACOUSTICAL CEILING UNITS
A. Acoustical Panels Type ACT-1:
1. Surface Texture: Medium
2. Composition: Wet-formed mineral fiber
3. Color: Factory prefinish standard color as indicated on drawings.
4. Size: 48 IN x 24 IN x 5/8 IN
5. Edge Profile: Square Lay-in for interface with Prelude XL 15/16” Exposed Tee grid.
6. Noise Reduction Coefficient (NRC): ASTM C 423; Classified with UL label on product carton
0.55.
7. Ceiling Attention Class (CAC): ASTM C 1414; Classified with UL label on product carton 35.
8. Articulation Class (AC): ASTM E 1111; Classified with UL label on product carton (Not
Applicable).
9. Flame Spread: ASTM E 1264; Class A (UL).
10. Light Reflectance (LR): ASTM E 1477; 0.80.
11. Dimensional Stability: Standard.
12. Acceptable Product: Cortega Tile & Lay-In, 769A as manufactured by Armstrong World
Industries.
2.03 SUSPENSION SYSTEMS
A. Components: All main beams and cross tees shall be commercial quality hot dipped galvanized
steel (galvanized steel, aluminum, or stainless steel) as per ASTM A 653. Main beams and cross
tees are double-web steel construction with 15/16 type exposed flange design. Exposed surface
chemically cleansed, capping prefinished galvanized steel (aluminum or stainless steel) in baked
polyester paint. Main beams and cross tees shall have rotary stitching ( exception: extruded
aluminum or stainless steel).
1. Structural Classification: ASTM C 635 Intermediate Duty.
2. Color: To match the actual color of the selected ceiling tile, unless noted otherwise.
3. Acceptable Product: Prelude XL 15/16” Exposed Tee, as manufactured by Armstrong World
Industries.
B. Attachment Devices: Size for five times design load indicated in ASTM C 635, Table 1, Direct Hung
Unless otherwise indicated.
SUSPENDED ACOUSTICAL CEILINGS 09511 - Page 1 of 2