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Celline® SPECIFICATION
Section 09546 Metal Plank Acoustical Security Ceiling System
scope of work
submittals
field conditions
product components
finish
performance
material protection and installation
quality assurance
acceptable manufacturers
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1.1
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WORK INCLUDED: This specification covers the material,
installation, and related requirements for the Metal Plank Ceiling System - including
all necessary acoustical insulation, suspension systems, and fasteners.
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1.2
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RELATED WORK: The following items of related work are not
included in this Section of the specifications.
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1.2.1
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Ceiling Lighting Systems; their components, layout, coordination,
installation, or support systems. Compatible recessed Security Lighting Fixtures
are to be furnished and installed by Division 16 Electrical.
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1.2.2
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Ceiling Air Supply and Return Systems; their components,
layout, coordination, installation, or support systems. Compatible air supply and
return systems are to be furnished and installed by Division 15 Mechanical.
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2.1
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A manufacturer's certification of compliance with the acoustical
performance required under Section 6.2 of this specification.
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2.2
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After award of contract, Shop drawings shall be submitted
and approved prior to fabrication of the ceiling panels or their structural supports.
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2.3
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A 1' x 1' assembled sample of each ceiling panel and its
suspension system shall be submitted for approval.
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2.4
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Manufactures' Product Data and Installation Instructions.
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3.0
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FIELD CONDITIONS: The ceiling
contractor shall verify all dimensions, elevations, and job site conditions before
fabrication commences.
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4.1
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METAL PLANK CEILINGS: The Metal Plank System is to be fabricated
and installed in accordance with the manufacturers approved shop drawings. Metal
planks shall be factory formed from (12) (14) (16) gauge perforated (non-perforated)
galvanealed (min. A60) steel as indicated on the drawings. Planks shall
be formed (12") (18") (24") wide in lengths of up to 12'-0" as shown on reflected
ceiling plans. Vertical legs of metal planks are to be factory formed so that panels
overlap tightly to provide positive self-alignment with adjacent panels.
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4.2
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METAL PLANK SUSPENSION: Perimeter angles and main tee runners
shall be factory fabricated from (12) (14) (16) gauge factory finished galvanealed
(min. A60) steel. Angles and tees shall be factory prepunched to receive
fasteners. Angles shall be fastened to all abutting vertical surfaces through the
use of drilled in anchors or other approved fasteners at a minimum of 16"
O/C. Tee sections shall be suspended by 14 gauge 1-1/2" x 1-1/2" galvanized slotted
angles bolted to main tees at minimum of 5'-0" O.C., hung from
structural members or drilled in anchors of appropriate type and dimension as approved
by the architect. Panels shall be securely fastened to all angles and tee sections
with (steel rivets) (Torx security fasteners) of appropriate dimension (painted
to match panels) minimum 6" on center [or through the use of concealed hold
down angle mechanically fastened to abutting vertical surfaces].
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4.3
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ACOUSTICAL MATERIAL: The inside surface of all perforated
ceiling panels shall be covered with Class "A" fiberglass insulation wrapped
in black Fire Retardant Poly. Insulation shall be of sufficient thickness and density
to provide the acoustical requirements as outlined in Section 6.2 of this specification.
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4.4
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LIGHTS AND AIR: Although not furnished by the ceiling system
manufacturer, all light and air units are to be system compatible and sized so as
to fit into and trim off full module opening in ceiling system and shall be independently
supported from above by installing trade.
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4.5
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FASTENERS: All exposed fasteners shall be tamper proof
and shall be a minimum No. 12 size. Fasteners for securing the wall molding to the
wall are to be selected and furnished by the contractor and approved by the architect/engineer.
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5.1
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METAL PLANKS AND RELATED SUSPENSION:: The metal planks
shall have a factory White Polyester Powder Coated Paint finish. Finish to be applied
after perforation (if applicable) to insure coating of perforated holes.
Panels shall be coated with white polyester powder to a finish side thickness min.
2.0 mil. Prior to painting, galvanealled steel or aluminum surfaces shall be cleaned,
rinsed, and properly treated to receive the powder finish. Finish to achieve the
following performance characteristics : Salt Spray per ASTM B-117 - 1000 hours PASS
at less than 1/8" from score; Humidity Resistance per ASTM D-2247 - 1000 hours PASS
at less than 1/8" from score.
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6.1
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ACCESSIBILITY: Suspended metal plank ceiling systems shall
be designed and installed to resist access to the plenum area. System compatible
hinged locking downward accessible doors are to be provided in locations indicated
on architectural reflected ceiling plans. Access Doors are to be sized so as to
fit into and trim off full module opening in ceiling system.
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6.2
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ACOUSTICAL REQUIREMENTS: The perforated ceiling systems
shall provide a noise reduction co-efficient (NRC) of no less than 0.80 when tested
in accordance with ASTM C423-84a in an E-400 mounting as defined in ASTM E795-83.
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7.1
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MATERIAL PROTECTION: Material shall not be delivered to
the job site, nor installed, until all exterior openings have been closed in and
all concrete and other wet work is completed and dry.
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7.2
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SITE INSPECTION: Prior to installation of the ceiling systems,
the general contractor shall verify that the structure and surfaces provided by
other trades are properly built to the dimensions shown on the approved ceiling
shop drawings and that the structure is ready to receive the ceiling system. All
discrepancies shall be corrected prior to commencing installation.
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7.3
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INSTALLATION: The ceiling systems shall be installed in
accordance with ASTM C636, and CISCA guidelines, in layouts as reflected on the
approved shop drawings, all in compliance with the manufacturer's installation instructions.
The suspension system and wall moldings shall be installed plumb and level. Start
installation of Metal Plank at location as shown on reflected ceiling plans. Slide
Metal Plank along perimeter angle to create a ship lapped joint between adjoining
panels. Insure self-aligning legs overlap each other. Side stitch panels together
along ship lapped panel joins with self tapping fasteners per approved shop drawings
or at a minimum of 24" o/c. In order to achieve secure and tightly engaged
panel joint details, panels must be installed progressively from the start panel
through the closure panel. Except for the openings for light, air, fire protection,
or access shown on the reflected ceiling plans, all openings or cut outs required
in the ceiling planks shall be field cut by the trades requiring the openings.
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8.1
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MANUFACTURER QUALIFICATIONS: Company specializing and regularly
engaged in the domestic manufacture of metal plank security ceilings with a minimum
of five (5) years experience in the manufacture of correctional ceiling
systems.
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8.2
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ERECTOR QUALIFICATIONS: Company specializing in the installation
of metal plank security ceilings, approved by the manufacturer, and having a minimum
of three (3) years experience in the installation of correctional ceiling
systems.
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8.3
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SINGLE SOURCE RESPONSIBILITY. To insure proper compatibility,
all ceiling components listed in Section 4.0 Product Components, shall be provided
by a single source.
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9.1
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SUSPENDED METAL SECURITY PLANK CEILING SYSTEM: Shall be
Celline® as manufactured by Gordon Corrections Division, Bossier City, Louisiana, 866-733-3851, or equal as approved by architect in accordance with Paragraph
9.2 below.
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9.2
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SUBSTITUTIONS: Ceiling systems by other manufacturers may
be substituted only after written approval of the architect, such approval being
received ten (10) calendar days prior to the bid opening. The proposed system shall
meet all the requirements of this specification.
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