SECTION 09512

ADHESIVE APPLIED ACOUSTICAL CEILINGS

PART 1 GENERAL

SECTION INCLUDES

Acoustical tile.

[Perimeter trim].

RELATED SECTIONS

Section 08305 - Access Doors: Access panels.

Section 09260 - Gypsum Board Systems: Gypsum board [suspended] ceiling system substrate.

Section [______-____________]:	Ceiling system substrate.

Section 09511 - Suspended Acoustical Ceilings.

Section [______-____________]: [Acoustic] partition system.

Section 13025 - Integrated Ceilings.

Section 15325 - Sprinkler Systems: Sprinkler heads in ceiling system.

Section 15936 - Air Outlets and Inlets: Air diffusion devices in ceiling system.

Section 16510 - Interior Luminaires:	Light fixtures in ceiling system.

Section 16721 - Fire Alarm and Smoke Detection Systems: Fire alarm components in ceiling system.

Section 16770 - Public Address System.

REFERENCES

ASTM D1779 - Adhesive for Acoustical Materials.

ASTM E1264 - Classification of Acoustical Ceiling Products.

FS SS-S-118 - Sound Controlling Blocks and Boards (Acoustical Tiles and Panels, Prefabricated).

SUBMITTALS

Submit under provisions of Section [01300.] [________.]

Shop Drawings: Indicate tile layout and related junctions with other work or ceiling finishes, interrelation of mechanical and electrical items related to system and [________].

Product Data: Provide data on acoustic units and [________].

Samples:	Submit [two] [_______] samples [____x____] inch ([____x____] mm) in size illustrating material and finish of acoustic units.

QUALIFICATIONS

Acoustical Unit Manufacturer: Company specializing in manufacturing the Products specified in this section with minimum [three] [_______] years [documented] experience.

Applicator: Company specializing in performing the work of this section [with minimum [__________] years [documented] experience] [approved by manufacturer].

REGULATORY REQUIREMENTS

Conform to [applicable] [___________] code for [fire rated assembly] [and] [combustibility requirements for materials].

ENVIRONMENTAL REQUIREMENTS

Maintain uniform temperature of minimum [60] [____] degrees F ([16] [____] degrees C), and maximum humidity of [40] [____] percent prior to, during, and after installation.

SEQUENCING

Sequence work under the provisions of Section [01010.] [________.]

Sequence work to ensure acoustical ceilings are not installed until building is enclosed, sufficient heat is provided, dust generating activities have terminated, and overhead work is completed, tested, and approved.

Install acoustic units after interior wet work is dry.

EXTRA MATERIALS

Furnish under provisions of Section [01700.] [________.]

Provide [____] sq ft ([____] sq m) of extra tile to Owner.

****** [OR] ******

Provide [____] percent of total acoustical unit area of extra tile to Owner.

PART 2 PRODUCTS

MANUFACTURERS - ACOUSTIC UNITS

[__________________________________] Product [_________].

[__________________________________] Product [_________].

[__________________________________] Product [_________].

Substitutions: Under provisions of Section [01600.] [________.]

MATERIALS

Acoustic Tile: [ASTM E1264,] [FS SS-S-118,] Conforming to the following:

Size: 12 x 12 inches (300 x 300 mm).

Thickness: [3/4] [5/8] [____] inches ([19] [15] [____] mm).

Composition: [Mineral] [________].

Density: [____] lb/cu ft ([____] kg/cu cm).

Light Reflectance:	[____] percent.

NRC Range:	[____] to [____].

STC Range:	[____] to [____].

Fire Hazard Classification: [____/____].

Joint:	[Kerfed] [Rabbetted] [________].

Edge: [Square] [Beveled].

Surface Color:	[White] [________].

Surface Finish:	[Perforated] [Non-directional fissured] [Directional fissured] [__________], [plastic wrapped].

Adhesive: [ASTM D1779,] waterproof, [gun] [knife] grade; type recommended by tile manufacturer.

Edge Trim: Rolled [steel] [aluminum] profile, [white] [________] color [as selected].

Gypsum Board: UL fire rated type; [5/8] [____] inch ([15] [____] mm) thick, ends and edges square, paper faced.

PART 3 EXECUTION

EXAMINATION

Verify site conditions under provisions of Section [01039.] [________.]

Verify that substrate conditions are ready to receive the work of this section.

INSTALLATION

Install system in accordance with manufacturer's instructions and as supplemented in this section.

Install to fire rated assembly in accordance with [UL Design No. [____].] [[________] requirements.]

Install edge molding at intersection of ceiling and vertical surfaces, using maximum lengths. Miter corners. Provide edge moldings at junctions with other interruptions.

****** [OR] ******

Kerf tile edges at intersection of ceiling and vertical surfaces.

[Where [bullnose concrete block corners] [round obstructions] occur, provide preformed closers to match edge molding.]

[Center] [Locate] tile on room axis [leaving equal border units.] [according to reflected plan.]

Fit acoustic units in place, free from damaged edges or other defects detrimental to appearance and function.

Lay directional patterned units one way with pattern parallel to [longest] [shortest] room axis. Fit border units neatly against abutting surfaces.

Install acoustic units level, in uniform plane, and free from twist, warp, or dents.

ERECTION TOLERANCES

Maximum Variation from Flat and Level Surface: [1/8] [____] inch in 10 feet ([3] [____] mm in 3 m).

SCHEDULE

Kitchen Areas: 12 x 12 inch bevelled edge acoustic tile, plastic faced, adhered to existing painted plaster ceiling.

Dining Areas: 12 x 12 inch square edge acoustic tile, adhered to new suspended gypsum board ceiling.

END OF SECTION