HomeMy WebLinkAbout095423 linear metal ceilings.pdf Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
LINEAR METAL CEILINGS 095423 - 1
SECTION 095423 - LINEAR METAL CEILINGS
PART 1 - GENERAL
1.1 SUMMARY
A. Linear metal ceilings for exterior and interior soffits and ceilings
1.2 SYSTEM PERFORMANCE REQUIREMENTS
A. Structural Performance: Design, engineer, fabricate, and install linear metal ceiling systems to
withstand the effects of loads and stresses from wind and thermal movement, without showing
permanent deformation of ceiling system components including panels and suspension system;
noise or metal fatigue caused by vibration, deflection, and displacement of ceiling units; and
permanent damage to fasteners and anchors.
1. Wind Load: 25 lb per sq. ft. positive and negative.
2. Normal thermal movement is defined as that resulting from the following maximum
change in ambient temperature (the range):
3. Temperature Change (Range): 100 deg F.
1.3 SUBMITTALS
A. Product data for each type of product specified. Include installation methods for each type of
substrate.
B. Coordination drawings for reflected ceiling plans drawn accurately to scale and coordinating
penetrations and ceiling mounted items. Show the following:
1. Joint pattern.
2. Ceiling suspension members.
3. Method of attaching hangers to building structure.
4. Ceiling mounted items including light fixtures. Special moldings at walls, column
penetrations, and other junctures with adjoining construction.
1.4 QUALITY ASSURANCE
A. Installer Qualifications: Engage an experienced Installer who has installed linear metal ceiling
systems similar in material, design, and extent to that indicated for this Project.
B. Single Source Responsibility: Obtain linear metal ceiling panels and suspension system from
one source from a single manufacturer.
C. Coordination of Work: Coordinate layout and installation of linear metal ceiling units and
suspension system components with other work supported by, or penetrating through system.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
LINEAR METAL CEILINGS 095423 - 2
PART 2 - PRODUCTS
2.1 MANUFACTURERS
A. Manufacturers: Subject to compliance with requirements, provide products by one of the
following:
1. Atas International, Inc.- Linear Ceiling LCB (Basis of design)
2. Architectural Surfaces, Inc. - Alumiline
B. Give preference to materials with high recycled content and those that are
extracted/manufactured within 500 miles of the project site. Include these products in
Contractor’s LEED Action Plan and Subcontractor Scope and product purchase review in order
to increase the likelihood of achieving 2 points for recycled content and 2 points for regional
materials.
2.2 LINEAR METAL CEILING SYSTEMS, GENERAL
A. Sheet Metal Characteristics: Form metal panels from sheet metals free from surface blemishes
where exposed to view in the finished unit. Do not use materials whose exposed surfaces
exhibit pitting, seam marks, roller marks, variations in flatness exceeding those permitted by
referenced standards for stretcher leveled metal sheet, stains, discolorations, or other
imperfections.
B. Fabrication: Die form linear metal panels into units standard with manufacturer and finished to
comply with requirements indicated under "Finishes" article.
2.3 LINEAR METAL PANELS
A. Panels, General: Formed to snap on and be securely retained on carriers without separate
fasteners.
B. Aluminum Panels:
1. Minimum Nominal Thickness: 0.032 inch.
C. Panel: Provide panel of following profile and surface pattern:
1. Panel Profile: Nominal 8 inch face width by 5/8 inch deep
2. Panel length: Continuous, uninterrupted
3. Edge: Square with recessed filler strip
4. Color: As selected by Architect from manufacturer’s full range
5. Texture: Smooth
6. Recessed Filler Strip Color: Match panel color
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
LINEAR METAL CEILINGS 095423 - 3
2.4 SUSPENSION SYSTEMS, GENERAL
A. Standard for Metal Suspension Systems: Provide manufacturer's standard exterior symmetrical
carrier of types, structural classifications, and finishes indicated that comply with applicable
ASTM C 635 requirements.
B. Attachment Devices: Size for five times design load of 16 pounds per linear foot (23.8 kg/m) as
indicated in ASTM C 635, Table 1, Direct Hung.
C. Wire for Carriers, Hangers, and Ties:
1. ASTM A 641, Class 1, zinc coating, soft temper.
2. Gage: Provide wire sized so that stress at three times hanger design load (ASTM C 635,
Table 1, Direct Hung) will be less than yield stress of wire, but provide not less than
0.106 inch diameter (12 gage).
3. Edge Moldings and Trim: Metal of types and profiles indicated or, if not indicated,
provide manufacturer's standard molding for edges and penetrations of ceiling that fits
with type of edge detail and suspension system indicated.
4. For circular penetrations of ceiling, provide edge moldings fabricated to diameter
required to fit penetration exactly.
D. Carriers: Comply with ASTM A 446, cold rolled, electrogalvanized, 0.0209 inch (25 gage)
minimum nominal thickness steel or minimum .040 inch thick aluminum.
E. Stabilizer Bars: Formed after painting, 0.040 inch aluminum alloy space as recommended by
manufacturer.
F. Exterior Bracing Channels: Cold rolled steel, 0.0598 inch minimum thickness of base
(uncoated) metal and 7/16 inch wide flanges, hot dip galvanized to comply with ASTM A 525
for G60 coating designation.
2.5 MISCELLANEOUS COMPONENTS AND MATERIALS
A. Exposed Trim:
1. Provide exposed members as indicated or required for edges of panels and fixture trim, of
metal and finish matching linear metal ceiling system.
2. For circular penetrations through ceiling system, provide edge moldings fabricated to
diameter required to fit penetration exactly.
B. Access Panels: For access at locations indicated, provide door hinge assembly, retainer clip,
and retainer bar. Assembled with ceiling panels and carrier sections into access doors of
required size, permitting downward opening. No exposed frame or exterior trim.
2.6 FINISHES, GENERAL
A. Comply with NAAMM "Metal Finishes Manual" for recommendations relative to application
and designations of finishes for linear metal panel and exposed trim.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
LINEAR METAL CEILINGS 095423 - 4
B. Protect mechanical finishes on exposed surfaces from damage by application of strippable,
temporary protective covering before shipment.
C. Appearance of Finished Work: Variations in appearance of abutting or adjacent ceiling units
are not acceptable. Noticeable variations in the same piece are not acceptable.
2.7 ALUMINUM FINISHES
A. Finish designations prefixed by AA conform to the system established by the Aluminum
Association for designating aluminum finishes.
B. Painted Finish:
1. KYNAR 500 painted finish, selected by Architect from manufacturer’s full range.
C. Anodized Finish: Selected by Architect from manufacturer’s full range.
PART 3 - EXECUTION
3.1 PREPARATION
A. Measure each ceiling area and establish layout of linear metal panel units to balance border
widths at opposite edges of each ceiling. Avoid using units less than half wide at borders.
Comply with reflected ceiling plans and soffit plans.
3.2 INSTALLATION
A. Standard for Installation of Ceiling Suspension Systems: Comply with ASTM C 636 as
applicable to linear metal panel ceilings.
B. Suspend ceiling hangers from, or attach to, building structural members and as follows:
1. Install hangers plumb and free from contact with other objects within ceiling plenum that
are not part of supporting structural suspension system. Splay hangers only where
required to avoid obstructions and offset resulting horizontal forces by bracing,
countersplaying, or other equally effective means.
2. Where width of construction within ceiling plenum produces hanger spacings that
interfere with the location of hangers at spacings required to support standard suspension
system members, install supplemental suspension members and hangers in form of
trapezes or equivalent devices. Size supplemental suspension members and hangers to
support ceiling loads within performance limits established by referenced standards.
3. Secure hangers to structure, that are secure and appropriate for structure to which hangers
are attached as well as for type of hanger involved, and in a manner that will not cause
them to deteriorate or fail because of age, corrosion, and elevated temperatures.
4. Space hangers not more than 4 feet on center along each member supported directly from
hangers, unless otherwise shown.
5. Install down post bracing channels to prevent wind uplift of soffit.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
LINEAR METAL CEILINGS 095423 - 5
C. Install edge moldings at edge of each linear metal ceiling area and at locations where edge of
units would otherwise be exposed after completion of Work. Level moldings with ceiling
suspension system to level tolerance of 1/8 inch in 12 feet.
D. Scribe and cut metal panel units for accurate fit at borders and at interruptions and penetrations
by other work through ceilings. Stiffen edges of cut units as required to eliminate evidence of
buckling or variations in flatness exceeding referenced standards for stretcher leveled metal
sheet.
E. Install panels one piece, full length without splices. Install panels with butt joints using internal
panel splices and in random joint configuration
END OF SECTION 095423