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SECTION 09840
ACOUSTICAL WALL TREATMENT
PART 001 GENERAL
1.1 SUMMARY
1. Section
Includes: Acoustical wall panels as follows:
1. Acoustical fabric
faced wall panels
2. Acoustical vinyl faced wall panels
2. Applications
Include:
1. Wall panels
exposed to medium abuse
2. Wall panels with impact resistant high density facer
3. Tackable panels
4. Permanent installation
5. Movable installation
3. Related
Sections:
1. Section 09510,
"Acoustical Ceiling Panels"; Fabric faced ceiling panels.
2. Section 09810, "Acoustical Space Units"; Ceiling baffles
1.2 REFERENCES
1. ASTM
E 84: Test Method for Surface Burning Characteristics of Building Materials
2. ASTM
C 423: Test Method for Sound Absorption and Sound Absorption Coefficients
by the Reverberation Room Method
1.3 SUBMITTALS
1. Product
Data:
1. Manufacturer's
technical information and instructions for handling, storing, and installing.
2. Certification by manufacturer that products supplied comply with
requirements.
2. Shop
Drawings: Submit elevations showing wall panel layout and items installed
in wall.
3. Samples:
Submit 12" x 12" sample of each type of wall panel.
4. Test
Reports: Submit test reports from an independent testing agency indicating
compliance with requirements.
1.4 QUALITY
ASSURANCE
1. Installer
Qualifications: Engage an installer, acceptable to the manufacturer, and
who has completed installations with a record of successful in-service
performance.
2. Provide
acoustical wall panels that comply with the following requirements:
1. Fire tests shall
be performed by independent testing agency acceptable to authorities
having jurisdiction.
2. Surface-burning characteristics of acoustical panels shall comply
with Class A materials as determined by testing per ASTM E 84:
1. Flame Spread:
25 or less.
2. Smoke Developed: 450 or less.
3. Products shall
be identified with name of testing agency.
3. Mock-up:
Provide mockup as follows:
1. Prepare mock-up
of at least 60 sq. ft. of wall panels.
2. After mock-up is approved, these surfaces will be used to evaluate
final installation.
3. Obtain the Architect's approval of samples before starting application.
1.5 DELIVERY,
STORAGE, AND HANDLING
1. Packing,
Shipping and Handling: Deliver materials to the Project site in manufacturer's
original, unopened packages bearing the manufacturer's name, and the following
information:
1. Product name.
2. Manufacturer's stock number and date of manufacture.
3. Installation instructions.
4. Handling instructions and precautions.
2. Storage
and Protection: Store materials in enclosed shelter providing protection
from damage and exposure to the elements. Damaged or deteriorated materials
shall be removed from the premises.
1.6 PROJECT
CONDITIONS
1. Temperature
Conditions: Install wall panels when temperature conditions are within
manufacturer's limits and will be maintained within those limits during
occupancy.
1.7 WARRANTY
1. Warranty:
Submit a written warranty, executed by the manufacturer, agreeing to replace
acoustical wall panels that fail within the specified warranty period.
2. Warranty
Period: 1 years from the date of Substantial Completion.
1.8 MAINTENANCE
1. Furnish
extra materials. Package materials in unopened, factory-sealed containers
for storage and identify with labels. Deliver extra materials to the Owner.
1. Materials: Furnish
the Owner with an additional 2 percent of material, including full size
panels.
PART 002 PRODUCTS
2.1 MANUFACTURER
1. Products:
Subject to compliance with requirements, provide the following products:
[EDIT SELECTIONS
REQUIRED FOR PROJECT.]
1. Silentspace
Wall Panels; ESSI Acoustical Products Company
1. Model W-103:
Faced rigid fiber glass core with metal edge
2. Model W-104: Faced rigid fiber glass core with metal edge for impact
resistant exposure
3. Model W-105: Mineral core for tackable application
4. Model W-106: Faced rigid fiber glass core with chemically hardened
edge
5. Model W-107: Faced rigid fiber glass core with chemically hardened
edge for impact resistant exposure
2.2 MATERIALS
1. Rigid
Fiber Glass Core: Manufacturer's standard rigid fiber glass core.
1. Nominal density:
6 lb./cu. ft.
2. Impact
Resistant Fiber Glass Core: Manufacturer's standard rigid fiber glass
core 6 to 7 lb./cu. Ft. density with a 1/8" thick fiber glass facer 16
lbs/cu. ft. density laminated to the core.
3. Mineral
Board Core: Manufacturer's standard mineral board core.
1. Nominal density:
18 lb./cu. ft.
4. Facing Material:
Manufacturer's standard facing material.
[EDIT OPTIONS
BELOW]
1. Fabric: Guilford
FR 701 [Custom Fabric (specify type)]
2. Perforated Vinyl facing: Genon Stipple II [Custom vinyl (specify
type)]
2.3 ACOUSTICAL
WALL PANELS
1. Acoustical
Wall Panels: Provide acoustical panels complying with the following:
[EDIT OPTIONS
BELOW. NOTE: ONLY SQUARE EDGE IS AVAILABLE ON GALVANIZED STEEL EDGE PANELS
W-103 W-104]
1. Facing: Fabric
[Vinyl] faced one side, including reveals, if any.
2. Core Construction: Rigid fiberglass with [Galvanized steel frame
edge] [Chemically hardened edge] [Mineral board core]
3. Edge Detail: Square. [Bevel.] [Miter] Radius]
4. Thickness: 1 inch [2 inches]
5. Size: 48" wide x 96" high [48" wide X 120" high] [Custom as shown
on Drawings.]
6. Noise Reduction Coefficient: ASTM E 423, NRC 0.80 for 1" thick panels
[NRC 1.05 for 2" thick panels]
7. Fire rating: Class A, ASTM E84
8. Installation: Permanent [Movable]
2.4 WALL PANEL
ACCESSORIES
1. Provide
manufacturer's standard wall panel attachment accessories.
2. Attachment
Devices:
1. Mechanical Clips:
Two-part panel "Z" clips, with one part attached to back of panel and
the other part to wall. Attachment hardware designed to allow for panel
removal.
2. Impaling Plates: Metal impaling plates mechanically attached to wall
according to manufacturer's recommended pattern.
3. Velcro Fasteners: Two-part "Velcro" fasteners adhesively attached
to wall and to back of panels according to manufacturer's recommended
pattern.
4. Magnetic hangers: Two part magnetic tape system with magnetic tape
adhesively attached to wall and to back of panel according to manufacturer's
recommended pattern.
[ADHESIVE IS
FOR PERMANENT INSTALLATION]
5. Adhesive: Manufacturer's
recommended adhesive applied to back of panels in pattern recommended
by manufacturer.
[INCLUDE BELOW
FOR SUPPORT OF LARGE PANELS]
6. Leveling Angle:
In combination with other attachment hardware, provide continuous metal
leveling support angle mechanically attached to wall designed to support
full weight of panel.
PART 003 EXECUTION
3.1 EXAMINATION
1. Examine
conditions, with the Installer present, under which wall panels will be
installed for compliance with manufacturer's installation requirements.
1. Acoustical installation
shall not begin until wet work such as concrete, plastering and terrazzo
work is completely dry.
2. Installation shall not begin until the building has been closed to
the weather and suitable mechanical ventilation is supplied to maintain
condition ranges of 60 degrees F to 85 degrees F at not more than 70%
Relative Humidity.
3. Notify the Architect in writing of anticipated problems.
4. Begin installation after unsatisfactory conditions have been corrected.
5. Start of work within a particular area will be construed as the Installer's
acceptance of surface conditions.
3.2 INSTALLATION
1. Immediately
before installation, panels shall be stored for a sufficient time to stabilize
temperature and humidity conditions ambient during installation and anticipated
for occupancy.
2. Install
wall panels according to manufacturer's written instructions.
3. Install
acoustical panels fitted accurately into pattern indicated. Scribe panels
to fit adjacent construction. Cut edges shall have fabric wrapped around
cut edge.
3.3 CLEANING
1. Clean
exposed surfaces of acoustical wall panels. Comply with manufacturer's
written instructions for cleaning panels. Remove and replace wall panels
that cannot be cleaned completely.
2. At
end of each workday, remove waste materials and other discarded materials
from the Project site.
END
OF SECTION
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