PART 1 - GENERAL
1.01 RELATED DOCUMENTS
A. Drawings and general provisions of Contract including General and Supplementary Conditions.
1.02 SUMMARY
A. This section describes the requirements for providing the metal wall panel system as indicated on the drawings and specified, to include:
1. Modular, metal wall panels
2. Related mounting suspension and accessories.
3. Acoustical insulation pad and trim.
4. Accessories; provide all other necessary items including devices for attachments to construction, secondary members, splines, splices, connecting clips, wall connectors, wall trims and all other devices required for a complete installation.
5. Coordinate items penetrating or being integrated into other systems with responsible trades.
B. Definitions: Wall panels shall consist of the following:
1. Wall panel system with tight fitting butt joint panels.
2. Wall panels shall be self-supporting.
3. Panels shall have transmission loss and sound absorption properties specified below. Acoustical properties shall be in accordance with specification requirements to achieve guaranteed reverberation times specified herein.
1.03 Quality Assurance
A. Reference Standards:
1. Local Building Code, current edition requirements.
B. Test Reports:
1. Laboratory test reports for sound absorption (NRC) rating.
2. The test reports shall certify compliance with the requirements of this Section for the actual product included in the bid.
3. Manufacturer's printed technical performance data.
4. Reverberation time:
a. Acceptable calculations estimating what the reverberation time will be if the specified areas were left untreated and what the guaranteed reverberation time will be after the metal panel sound absorption system is installed.
b. The reverberation time specified must be an achieved.
1.04 Submittals
A. Comply with the requirements of Division 1, Section 01300, Submittals.
B. Product Data: Submit manufacturer's product descriptions and specifications for wall panel cover system.
C. Samples: Submit full size of wall panel minimum of 12" long showing straight edge detail with an attached suspension system and trim member in the specified finish.
D. (Optional) Mock-up: Submit a full size production quality wall panel. Mock-up shall include all required accessories for a complete installation, including brackets and trims if shown on architectural drawings.
E. Shop Drawings:
1. Provide properly dimensioned shop drawings showing panel layout. Show all locations, markings, quantities, materials, sizes and shapes and indicate all methods of connecting, anchoring, fastening, bracing and attaching to work of other trades. Shop drawing submittals to be on computer aided design systems and furnished on computer disks. System shall be compatible with that of the architect.
PART 2 - PRODUCTS
2.01 MATERIALS
A. Project design is based on materials and systems of Ceilings Plus, Los Angeles, CA 800-822-3411, www.ceilingsplus.com
Other manufacturers must be approved prior to the bid in written form, by the architect. Specified manufacturer's standard of quality and manufacturing tolerances shall be criteria for evaluating "equivalent" product.
2.02 METAL WALL PANELS
A. System "WallForms", metal wall panel system. Attachment hardware to be provided.
B. Size: As indicated on architectural drawings. All wall panels will be factory fabricated with returned edges on all sides. Returns shall be minimum 2".
C. Construction:
1. Panels shall be totally self-contained and shall be finished to protect the acoustical fill material. Panels shall be factory braked formed to four sided pan configuration and sizes and details as shown on the drawings. Panel corners shall be formed tightly without gap or overlap. Deformation at corners will not be allowed.
2. The panel face perforation shall be custom designed to architectural requirements with open area of approximately 20%.
3. Panels will be constructed from a single sheet of minimum .062" aluminum. Material shall be free from surface blemishes in finished unit. Finish of aluminum should be per the architect's selection.
4. Acoustical fill: Fiber glass insulation with fire resistant properties described in paragraph D below and shall conform to required NRC values. to fit within individual metal wall panels. Fiberglas shall have a factory painted matte black face.
D. Finish: Perforated metal facings shall be painted in a finish to match architect's sample.
E. Fire Hazard performance:
1. Panel components shall meet the noncombustible material requirements of Class One.
F. Acoustical performances:
1. Metal wall panels shall be laboratory tested in accordance with ASTM C423 for sound absorption.
2. Shall provide an absorption coefficient of NRC .85. Test shall be in accordance with mounting per ASTM E-795.
2.03 ATTACHMENT SYSTEM
A. Support system shall be designed to accommodate wall panels. Panels shall be removable without the use of special tools.
B. Construction:
1. Attachment system: Install primary channel runners to existing wall substrates using appropriate drywall or concrete anchor screws or bolts as recommended by the manufacturer. Shim and level runners as necessary prior to panel installation. Install runners in a continuous horizontal row, patterns as dictated by panel joint layout as reflected on the architectural plans and approved shop drawings. Attach insulation pad to metal pans prior to panel installation. Install metal panels by engaging onto channel supports and locking down in place. Panels and trim shall be installed plumb and true without distortion. Exposed fasteners of any kind will not be acceptable.
2. Horizontal seams allowed only where indicated on plans.
3. Positive alignment lips to be provided to maintain tight hairline joints.
4. Anchors and inserts: furnish anchoring devices as required for installation of column covers.
5. Factory fabricate and finish all components to the satisfaction of the architect. The installation system shall allow for removable components without the use of exposed fasteners, hardware or supports. All brackets and hardware shall be illustrated on shop drawings. Provide for ceiling reveal and cove base as shown on plans.
6. Joint reveals and alignments shall not exceed plus or minus 1/64".
PART 3 - EXECUTION
3.01 INSPECTION
A. General Installation:
1. Materials shall be installed in strict accordance with procedures recommended by the manufacturer and requirements of agencies having jurisdiction. All materials for this section shall be from a single source manufacturer with minimum 5 years experience with products of the nature specified.
2. Install work in strict accordance with manufacturer's recommendations and approved shop drawings. Neatly cut and reinforce openings in metal panels to allow for field conditions. Reinforce cuts to protect insulation and insure structural security and acoustical integrity of panels.
3.02 ALLOWABLE TOLERANCES
A. Maximum deviation from level and flat of the completed wall panels shall not exceed 1/16" in 10 ft. when measured with a straightedge placed at any location on the wall panel; 1/4" total deviation on any single wall elevation.
B. Finish panel surface true within L/360 of panel diagonal.
C. Install work consistent with specified quality grade plumb, level, true and straight with no distortions. Shim as required, using concealed slate, or other nonorganic shims.
3.03 PRODUCT HANDLING
A. Delivery: Deliver panels components to job site in unopened containers identified with product manufacturer's name, trade name and other applicable identification.
B. Storage: Store all materials in dry and protected locations until installation.
C. Remove protective film material from panels only when space is completely clean and dust free of airborne particles. Cotton white gloves shall be used for final installation.
D. Remove and replace units that have been damaged or cannot be satisfactorily cleaned to the owner's or architect's acceptance, at no additional cost to the owner. To clean materials follow manufacturer's written cleaning procedures.
3.04. Maintenance
A. Maintenance instructions, as written by the manufacturer, are to be left with the building owner.