SECTION 09547
METAL LIGHT COVE SYSTEM
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 prefinished metal ceiling systems as indicated on the drawings and specified, to include:
1. Metal light cove panels
2. Metal light cove support assemblies
3. (Optional) Perforations
4. (Optional) Luminous backing material
5. Accessories; provide all other necessary items including devices for attachments to overhead construction, secondary members, splines, splices, connecting clips, wall connectors, wall trims and all other devices required for a complete installation.
6. Coordinate items penetrating or being integrated into ceiling systems with responsible trades.
1.03 Quality Assurance
A. Reference Standards:
1. American Society for Testing and Materials (ASTM):
a. C635 Specifications for Metal Suspension for Acoustical Tile and Lay-In Panel Ceiling.
B. C636 Practice for Installation of Metal Ceiling Suspension Systems for Acoustical Tile and Lay-In Panels.
2. Local Building Code, current edition requirements.
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 metal light cove system.
C. Samples: Submit full size metal light cove minimum of 12" long showing straight edge detail with an attached mounting system and perimeter trim member in the specified finish.
D. (Optional) Mock-up: Submit a full size production quality metal light cove. Mockup shall include all required accessories for a complete installation, including mounting and trims.
E. Shop Drawings:
1. Provide properly dimensioned shop drawings showing light cove 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 LIGHT COVES
A. Metal light cove, "Corniche®" by Ceilings Plus.
1. Light cove panels shall be formed in adequate thickness and factory formed to specified dimensions.
2. Finish to match architect's sample. Finish to be selected from manufacturer's standard color charts unless otherwise specified.
3. Light cove panels are to be die formed from a single sheet of .040" minimum aluminum and formed with an integral return edge on all panel sides. Objectionable deflection will not be tolerated. No indentations, marks or defacing of the exposed surface of the metal ceiling panel will be allowed. Provide metal end closures where panels do not abut to soffit, walls or end walls.
4. Perforations per architect selection. Panels to have a solid margin, non perforated, on all sides.
5. Diffusers. (Optional) Luminous opal acrylic lens. Provide and install .040" thick translucent opal white acrylic shield to prevent view of fluorescent lamps.
B. No fasteners of any kind shall be visible on exposed face surfaces of light cove panels or mounting hardware.
C. The light fixtures shall be 100% accessible. Every panel must be removable. Progressive panel access is not acceptable. Hinge assemblies to be mounted to every panel for downward access, without potential for damage to panel face or hinge assembly.
2.03 SUPPORTING SYSTEM
1. Attach panels to walls at elevation indicated. Use approved mounting methods to assure integrity of attachment. Follow manufacturers recommendation unless otherwise directed by the architect.
2. Additional supporting angle system shall consist of straight, factory formed parts in adequate thickness, to support loads. Finish angle, if exposed, to match modular cove panels.
3. Hanger attachments as required.
4. Tolerances: Maximum deviation of cove panels from edge to edge in width shall not exceed 1/8" in 10' when measured with a straightedge placed at any directional location on the finished surfaces. Maximum deviation shall not exceed 1ž4" from level in any area or room.
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 ceiling manufacturer with minimum 5 years experience with products of the nature specified.
2. Attach supporting channels of adequate strength to construction above by approved connection method according to local building codes.
3. Provide metal end closures where light coves do not abut to soffit, walls or end walls.
4. The contractor responsible for the work of this section shall be qualified and experienced in the performance of this work and done so for no less than a period of 5 years.
B. Product Handling
1. Delivery: Deliver metal light cover components to job site in unopened containers identified with product manufacturer's name, trade name and other applicable identification.
2. Storage: Store materials in dry and protected locations until installation.
3. 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.
4. 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.
C. Maintenance
1. Maintenance instructions, as written by the manufacturer, are to be left with the building owner.