Attachment 13 -SECTION 09 51 10 - Acoustical Panel Ceilings.pdf

31AUGUST2021

Section 09 51 10_1/2

SECTION 09 51 10 – ACOUSTICAL PANEL CEILINGS

PART 1 – GENERAL

1.1 SUMMARY

A. Extent of each type of acoustical ceiling is shown and scheduled on drawings.

B. Types of acoustical ceilings specified in this section include the following:

1. Acoustical panel ceilings, exposed suspension.

1.2 SUBMITTALS

A. Product Data: Manufacturer’s product specifications and installation instructions for materials and suspension system, including certified laboratory test reports and other data as required showing compliance with these specifications.

B. Coordination Drawings: layout of ceilings drawn to scale coordinating acoustical tile ceiling installation and spacing with hanger attachment to building structure and ceiling mounted items. Include locations of all mechanical and electrical items. Reproduction of Contract Documents is not acceptable and will be rejected if submitted.

C. Samples: Set of samples for acoustical unit, showing full range of exposed color and texture, and set of 12” long samples of suspension system.

D. Submit in accordance with the Statement of Work.

1.3 QUALITY ASSURANCE

A. Installer: Firm with not less than three years of successful experience in installation of acoustical ceilings similar to requirements for this project and which is acceptable to manufacturer of acoustical units.

1.4 DELIVERY, STORAGE, AND HANDLING

A. Deliver acoustical ceiling units to project site in original unopened packages and store them in a fully enclosed space where they will be protected against damage from moisture, direct sunlight, surface contamination or 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. Minor damages may be repaired, provide finish items are equal in all respects to new work and acceptable to Contracting Officer; otherwise, remove and replace damaged items as directed.

1.5 PROJECT CONDITIONS

A. Space enclosure - Do not install interior acoustical ceilings until wet work in space is completed and nominally dry, until work above ceilings is completed, and until ambient conditions of temperature and humidity will be continuously maintained at values near those indicated for final occupancy.

1.06 MAINTENANCE MATERIAL SUBMITTALS

A. Furnish extra materials, from the same product run, that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.

a. Acoustical Ceiling Tile: Full-size units equal to 5 percent of amount installed.

31AUGUST2021

Section 09 51 10_2/2

PART 2 – PRODUCTS

2.1 MANUFACTURERS

A. Armstrong World Industries B. USG Interiors, Inc.

C. CertainTeed (BPB America) D. Or Equal

2.2 MINERAL FIBER ACOUSTICAL PANELS

A. Type 1 (ACT1):

1. NRC – 0.55; CAC – 33

a. 2’ x 2’ x 5/8” Fine Fissured (1728) by Armstrong World Industries.

b. 2’ x 2’ x 5/8” Fine Fissured (HHF-157) by Certainteed.

c. Or Equal.

B. Where units less than 6 inches wide would occur at edges of room with 24 X 24 inch pattern, provide 24 X 48 inch panels cut to extend to wall, eliminating the tee near the wall.

PART 3 – EXECUTION

3.1 EXAMINATION

A. Installer must examine conditions under which acoustical ceiling work is to be performed and must notify Contractor in writing of unsatisfactory conditions. Do not proceed with work until unsatisfactory conditions have been corrected in manner acceptable to installer.

3.2 PREPARATION

A. Measure each ceiling area and establish layout of acoustical units to balance border widths at opposite edges of each ceiling – in accordance with approved coordination layout drawing.

3.3 INSTALLATION

A. General: Install materials in accordance with manufacturer's printed instructions and to comply with governing regulations, fire resistance rating requirements as indicated, and industry standard applicable to work.

B. Install acoustical panels in coordination with suspension members. Scribe and cut panels to fit accurately at borders and at penetrations.

3.4 CLEANING

A. Clean exposed surfaces of acoustical ceilings, including trim, edge mouldings and suspension members; comply with manufacturer's instructions for cleaning and touch-up of minor finish damage. Remove and replace work which cannot be successfully cleaned and repaired to permanently eliminate evidence of damage.

END OF SECTION