Armstrong World Industries, Inc.
Please understand that you are responsible for the accuracy of all project specifications, including any Armstrong
guide specifications that you use.
ARMSTRONG SHALL NOT BE LIABLE FOR ANY DAMAGES ARISING OUT OF THE USE OF ANY OF ITS GUIDE
SECTION 09 83 19 (09520)
ACOUSTICAL WALL PANELS
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
Drawings and general conditions of Contract, including General and Supplementary Conditions
and Division 1 Specification sections apply to work of this section.
A. Section Includes:
1. Acoustical Wall panel units.
2. Required exposed trim and support channels.
B. Related Sections:
1. Section 09 20 00 (09250) – Plaster and Gypsum Board
1. Prior Approval: Unless otherwise provided for in the Contract Documents, proposed
product substitutions may be submitted no later than TEN (10) working days prior to the
date established for receipt of bids. Acceptability of a proposed substitution is contingent
upon the Architect's review of the proposal for acceptability and approved products will be
set forth by Addenda. If included in a Bid are substitute products which have not been
approved by Addenda, the specified products shall be provided without additional
2. Submittals which do not provide adequate data for the product evaluation will not be
considered. The proposed substitution must meet all requirements of this Section.
including, but not necessarily limited to, the following: Single source materials suppliers
(if specified in Section 1.5); acoustical performance, fire resistance performance, panel
design, size, composition, color, and finish, compliance with the referenced standards.
A. American Society for Testing and Materials (ASTM):
1. ASTM C423 "Sound Absorption and Sound Absorption Coefficients by the Reverberation
2. ASTM E84 "Standard Test Method for Surface Burning Characteristics of Building
3. ASTM E1264 “Classification for Acoustical Ceiling Products”.
A. Product Data: Submit manufacturer's technical literature and installation instructions.
B. Samples: Minimum 6" x 6" samples of specified acoustical panel; minimum 4" long samples
of attachment method including trim.
C. Shop Drawings: Submit shop drawings showing how panels are to be laid out on the walls,
details of trim members, and width of panels. Width of panels and location of vertical seams
D. Certifications: Manufacturer's certifications that products comply with specified requirements,
including laboratory reports showing compliance with specified tests and standards.
1.5 QUALITY ASSURANCE
A. Single-Source Responsibility: Provide acoustical wall panel units and trim components by a
B. Fire Performance Characteristics: Indentify acoustical wall panels with appropriate markings
of applicable testing and inspecting organization.
1. Surface Burning Characteristics: As follows per ASTM E84 and complying with ASTM
E1264 for Class A Products:
a. Flame Spread: 25 or less.
b. Smoke Developed: 50 or less.
A. Coordination: Coordinate acoustical wall panel work with installers of related work including,
but not necessarily limited to, building insulation, gypsum drywall, finish carpentry, acoustical
ceiling systems, mechanical systems, and electrical systems.
1.6 DELIVERY, STORAGE, AND HANDLING
A. Prior to their installation, allow acoustical panel units to reach room temperature and have a
stabilized moisture content within the acoustical panel unit manufacturer's recommended
B. Deliver materials in manufacturer's unopened packages; suitably store to protect against
exposure to moisture, sunlight, surface contamination, and other unacceptable conditions.
C. Handle components to prevent panel edge damage or any other damage to components.
Wall panels shall be free from warping and delamination as a direct result of defects in material or
factory workmanship for ten years from date of installation of the wall material.The warranty does
not extend to any failure or defect of any adhesive or other component of any attachment system
or accessory used in the installation of the product.
PART 2 - PRODUCTS
A. Wall Panels:
1. Armstrong World Ind., Inc.
2.2 ACOUSTICAL WALL UNITS
A. Acoustical Wall Panels, AWP1
1. Surface Texture: Smooth
2. Composition: Fiberglass
3. Color: White
4. Size: 48 inches x 96 inches x 1 inch
5. Edge Profile: Square cut edge
6. Noise Reduction Coefficient (NRC) :
a. A mounting (Direct to wall) – Optima (0.80); Painted Nubby (0.70)
b. D mounting (On Furring Strips) – Optima (0.90); Painted Nubby (0.80)
7. Composite Flame Spread: Class A
8. Acceptable Product: (Optima Acoustical Wall Panel, Item #3154) (Painted Nubby
Acoustical Wall Panel, Item #3104)
B. TRIM ACCESSORIES:
1. "H" Channel, 1-5/8 inches x 8 feet x 1”, Item #3108
2. "C" Channel, 1 inch x 8 feet x 1 inch, Item #3107
PART 3 - EXECUTION
A. The building shall be properly closed and under occupancy temperature and humidity
A. Any relatively smooth interior surface such as drywall or plaster is suitable. For block, brick or
concrete, first apply a polyethylene film to the wall as an airflow and vapor barrier, and then
apply horizontal furring strips.
A. Panels should be installed a minimum of 6 feet above finished floor.
1. Attach the "C" Channels that will carry the weight of the panels using mechanical
fasteners appropriate for the wall structure or furring strips. Adhesive may be used in
conjunction with the mechanical fasteners, but should not be used as the sole means of
support at the base of the installation.
2. Furring strips, if used, should be should be horizontally spaced 12 inches on center
when panels are installed below 5 feet from the finished floor; and 24 inches on center
when installed above 5 feet from finished floor.
3. Exposed edges of furring strips may be field painted.
4. Fasteners used to attach “C” and “H” channels should be installed no more than 2 feet
5. "H" Channels are used at locations where two panels butt against one another.
6. "C" Channels are used at the perimeters of the installation and to frame any openings
that may have to be cut through a panel.
3.4 ADJUST AND CLEAN
Damaged, soiled, or discolored wall panels installed under work in this section shall be cleaned
or removed and replaced at no additional cost to the owner.
A commercial vacuum system with 100-inches/H2O vacuum capacity is recommended for
removing dust particles. The vacuum system cleaning attachment should be a 3” diameter wand
with natural hair bristle. A HEPA vacuum filter is recommended to minimize air borne dust
during the cleaning process. Avoid using a rubbing motion directly on the surface of the Painted
Nubby panel. Use a blotting action to minimize rubbing off the Painted Nubby particles.
Use a clean, dry, soft, white cloth to wipe off any dirt or greasy fingerprints. If this does not clean
the panel, use a damp, clean, soft, white cloth or sponge with a mild detergent to wipe the panel.
END OF SECTION