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- SECTION 09843
-
- CORK-FACED ACOUSTICAL WALL PANELS
- NOTE ** This section is based on the products of the
- Homasote Company, which is located at:
- NOTE ** P.O. Box 7240
- NOTE ** West Trenton, NJ 08628-0240
- NOTE ** Tel: (609) 883-3300
- NOTE ** Fax: (609) 530-1584
- NOTE ** Internet address: http://www.homasote.com
- NOTE ** For local rep contact: Sweet's Buyline 1-800-
- 892-1165 (#0878)
- NOTE ** The Homasote Company manufactures various products
- for the building industry. This section covers
- only a part of their product line: "Nova" cork-
- faced acoustical wall panels. Nova cork paneling
- is a completely finished structural panel requiring
- no on-site surface treatment. Panels in 4 by 8
- sizes are fire rated Class B and are available
- Class A. Cut to size panels are Class B fire
- rated.
- NOTE **
- NOTE ** See their other sections for wood roof decking,
- fiberboard underlayment, acoustical barriers (fire-
- rated and non-rated), and fabric-covered acoustical
- wall panels.
- NOTE **
- NOTE ** SECTION 09843 - CORK-FACED ACOUSTICAL WALL PANELS,
- Copyright 1998, The Architect's Catalog, Inc.
-
- PART 1 GENERAL
-
- 1.1 SECTION INCLUDES
- NOTE ** Select paragraphs below applicable to project.
-
- A. Class A cork-faced acoustical wall panels manufactured
- from recycled wood fiber material.
-
- B. Class B cork-faced acoustical wall panels manufactured
- from recycled wood fiber material.
-
- 1.2 RELATED SECTIONS
- NOTE ** Delete sections below not relevant to this project;
- add others as required.
-
- A. Section 06100 - Rough Carpentry.
-
- B. Section 09110 - Non-Load-Bearing Wall Framing.
-
- C. Section 09250 - Gypsum Board.
-
- D. Section _____ - _________________________.
-
- 1.3 REFERENCES
- NOTE ** Delete references from the list below that are not
- actually required by the text of the edited
- section; add others as required.
-
- A. ASTM E 84 - Test Method for Surface Burning
- Characteristics of Building Materials.
-
- B. ____________________________________.
-
- 1.4 SUBMITTALS
-
- A. Submit under provisions of Section 01300.
-
- B. Product Data: Manufacturer's catalog data, detail
- sheets, and specifications.
-
- C. Samples: Two samples of manufacturer's cork applied to
- substrate material indicating range of color; 7 by 7
- inches (180 by 180 mm).
-
- D. Quality Assurance/Control Submittals:
- 1. Manufacturer's installation instructions.
-
- E. Closeout Submittals: Maintenance and cleaning
- instructions.
-
- 1.5 QUALITY ASSURANCE
-
- A. Manufacturer's Qualifications:
- 1. Minimum 10 years experience in producing acoustical
- panels of the type specified herein.
-
- 1.6 DELIVERY, STORAGE, AND HANDLING
-
- A. Deliver materials in manufacturer's original packages.
-
- B. Inspect the materials upon delivery to assure that
- specified products have been received.
-
- C. Report damaged material immediately to the delivering
- carrier and note such damage on the carrier's freight
- bill of lading.
-
- D. Store materials in a dry place, indoors, or on raised
- platform protected from weather damage.
-
- 1.7 PROJECT CONDITIONS
-
- A. Environmental Requirements: For 24 hours before, during,
- and continually after installation, maintain temperature
- and humidity conditions that will approximate interior
- conditions following building occupancy.
-
-
- PART 2 PRODUCTS
-
- 2.1 MANUFACTURERS
-
- A. Acceptable Manufacturer: Homasote Company, P.O. Box
- 7240, West Trenton, NJ 08628-0240; ASD. Tel: (609) 883-
- 3300, Fax: (609) 530-1584, Internet address:
- http://www.homasote.com; For local rep contact: Sweet's
- Buyline 1-800-892-1165 (#0878).
-
- B. Requests for substitutions will be considered in
- accordance with provisions of Section 01600.
- NOTE ** Delete paragraph above or below; coordinate with
- Division 1 requirements.
-
- C. Substitutions: Not permitted.
-
- D. Provide all cork-faced acoustical wall panels from a
- single manufacturer.
-
- 2.2 MATERIALS
- NOTE ** Nominal size of panels is 4 by 8 feet (1.219 by
- 2.438 m). Actual size is 47-3/16 by 95-7/8 inches
- (1.198 by 2.435 m).
-
- A. Class A Cork Panels: Homasote Nova Cork Panels.
- 1. Substrate: NCFR(R) fiberboard manufactured from 100
- percent recycled wood fiber material; physical
- properties as follows:
- a. Thickness: 1/2 inch (13 mm).
- b. Density: 34-40 pcf (545-640 kg/cubic m).
- c. Water Absorption by volume (2 hour immersion): 5
- percent maximum.
- d. Expansion, 50 to 90 percent relative humidity:
- 0.30 percent.
- e. R-value: 0.85 (0.015).
- f. NRC: 0.20.
- g. Flame Spread (cork on one face): 25, per ASTM E
- 84.
- h. Smoke Developed (cork on one face): 20, per ASTM
- E 84.
- i. Fuel Contributed (cork on one face): 10.
- j. Classification: Class A, per NFPA.
-
- B. Class B Cork Panels: Homasote Nova Cork Panels.
- 1. Substrate: "440" fiberboard manufactured from 100
- percent recycled wood fiber material; physical
- properties as follows:
- a. Thickness: 1/2 inch (13 mm).
- b. Density: 24-26 pcf (385-415 kg/cubic m).
- c. Water Absorption by volume (2 hour immersion): 5
- percent maximum.
- d. Conditioned Moisture Content: 15 percent
- maximum.
- e. Expansion, 50 to 90 percent relative humidity:
- 0.25 percent.
- f. R-value: 1.11 (0.19).
- g. NRC: 0.20.
- h. Flame Spread (cork on one face): 70, per ASTM E
- 84.
- i. Smoke Developed (cork on one face): 40, per ASTM
- E 84.
- j. Fuel Contributed (cork on one face): 50.
- k. Classification: Class B, per NFPA.
-
- C. Cork Surface: Natural color, virgin cork.
- NOTE ** Select fabrication to suit the project from the two
- paragraphs following.
-
- D. Fabrication: Laminate cork to one side of substrate with
- continuous uniform coat of waterproof adhesive.
- 1. Edge Detail: All edges square.
-
- E. Fabrication: Laminate cork to both sides of substrate
- with continuous uniform coat of waterproof adhesive.
- NOTE ** Beveled edges are available on individual panels up
- to 36 by 48 inches. Panels 48 by 96 inches are
- available beveled on long edges only. Select edge
- detail to suit the project from the two
- subparagraphs below.
- 1. Edge Detail: Beveled edges, one face only.
- 2. Edge Detail: Long edges beveled, one face only.
-
- 2.3 ACCESSORIES
- NOTE ** Installation accessories are dependent on
- substrates and installation methods as recommended
- by the manufacturer; select from the following
- paragraphs accordingly.
-
- A. Metal Frame Clips: Manufacturer's standard clip for
- securing panels to framing.
-
- B. Adhesive: APA approved panel adhesive.
-
- C. Adhesive: APA AFG-01 subfloor adhesive.
-
- D. Nails: Color coordinated paneling nails, length as
- required to penetrate wood framing 3/4 inch (19 mm)
- minimum.
-
- E. Nails: Finishing nails, length as required to penetrate
- wood framing 3/4 inch (19 mm) minimum.
-
- F. Screws:
- 1. Wood Framing: Coarse thread drywall type wood screw,
- length as required to penetrate framing 3/4 inch (19
- mm) minimum.
- 2. Metal Framing: 22-25 gage, drywall type steel screw.
- 3. Metal Framing: 20 gage or heavier, self-tapping
- drywall type steel screw.
-
-
- PART 3 EXECUTION
-
- 3.1 EXAMINATION
-
- A. Examine substrates upon which work will be installed.
-
- B. Verify framing member spacing complies with
- manufacturer's requirements depending on substrates and
- installation methods.
-
- C. Verify environmental conditions are, and will continue to
- be, maintained in accordance with manufacturer's
- recommendations.
-
- D. Coordinate with responsible entity to perform corrective
- work on unsatisfactory substrates or conditions.
-
- E. Starting work by installer is acceptance of substrate and
- environmental conditions.
-
- 3.2 PREPARATION
-
- A. Follow manufacturer's instructions for allowing panels to
- be exposed to environmental temperature and humidity
- conditions for not less than 24 hours before start of
- installation.
-
- 3.3 INSTALLATION
- NOTE ** Homasote specifies framing at 16 inches (400 mm)
- o.c. for all installation methods except over
- finished walls; panel edges and ends are required
- to align with framing members or be blocked for all
- methods. Verify that appropriate framing section
- or drawing notes comply. Special framing may be
- required if panel joint layout is defined.
- NOTE **
- NOTE ** Furring for masonry or concrete walls can be one-
- by's (19 mm) wood or standard hat-shaped metal
- furring channels. Specify furring in the
- appropriate wood or metal framing section.
-
- A. Follow manufacturer's instructions for cutting and
- installation of panels:
- NOTE ** Installation is dependent on substrates; select
- from the following subparagraphs accordingly,
- deleting those not required for the project.
- 1. Wood Framed Walls, Method No. 1, (using framing
- clips).
- 2. Wood Framed Walls, Method No. 2, (using adhesive).
- 3. Metal Framed Walls.
- 4. Wood or Metal Furring over masonry or concrete walls.
- 5. Finished Walls (walls with continuous substrate in
- place).
-
- 3.4 CLEANING
-
- A. Follow manufacturer's instructions for cleaning panels
- soiled during installation.
-
- B. Replace panels that cannot be cleaned to "as new"
- condition.
-
-
- END OF SECTION
-