SECTION 09517

METAL LINEAR CEILING SYSTEM

PART 1 GENERAL

SECTION INCLUDES

Suspension system.

Linear formed metal [ceiling] [or] [soffit] panels.

[Closures between linear panels.]

PRODUCTS FURNISHED BUT NOT INSTALLED UNDER THIS SECTION

Section [_____-__________]: Installation of [attachment anchors] [_______] to [structure above.] [ceiling system.] [__________.]

PRODUCTS INSTALLED BUT NOT FURNISHED UNDER THIS SECTION

Section [_____-__________]: Installation of [grilles] [fixtures] [__________.]

RELATED SECTIONS

Section 09260 - Gypsum Board Systems: Suspension system as a substrate for this Section.

Section [_____-__________]: Air [Diffusers] [Grilles] [_____] within [ceiling] [soffit] system.

Section [_____-__________]: Sprinkler heads within [ceiling] [soffit] system.

Section [_____-__________]: Light fixtures within [ceiling] [soffit] system.

Section [_____-__________]: [Fire] [Smoke] detectors within [ceiling] [soffit] system.

Section [_____-__________]: Audio speakers for [__________] system.

REFERENCES

ANSI/ASTM A167 - Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip.

ANSI/ASTM A446 - Steel Sheet, Zinc-Coated (Galvanized) by the Hot Dip Process, Structural (Physical) Quality.

ANSI/ASTM B221 - Aluminum-Alloy Extruded Bar, Rod, Wire, Shape, and Tube.

ASTM B209 - Aluminum and Aluminum-Alloy Sheet and Plate.

ASTM C636 - Installation of Metal Ceiling Suspension Systems for Acoustical Tile and Lay-In Panels.

FS HH-I-521 - Insulation Blankets, Thermal (Mineral Fiber, for Ambient Temperatures).

SYSTEM DESCRIPTION

System: [Preformed] [Extruded] [steel] [aluminum] sections with sub-girt beam framing grid; [acoustic] [thermal] insulation, and steel suspension system with anchors to structure.

DESIGN REQUIREMENTS

Design, fabricate, and install soffit and suspension system to accommodate wind and suction loads and wind uplift [in accordance with applicable code] [to resist [_____] psf ([_____] kPa).

Design components to ensure light fixtures [and] [__________] will not induce eccentric loads. Where fixture [and] [__________] installation may produce rotation of ceiling system components, provide stabilizing reinforcement.

PERFORMANCE REQUIREMENTS

Installed ceiling system to exhibit maximum deflection of [1/360] [__________] of span.

Acoustic Attenuation: [__________] STC in accordance with

****** [OR] ******

Thermal Resistance Value: [_____] R ([_____] RSI).

SUBMITTALS

Submit shop drawings under provisions of Section [01300.] [01340.]

Submit shop drawings indicating ceiling system reflected plan, location of mechanical and electrical components, details of junction with dissimilar materials[.] [, and points of suspension.]

Submit product data under provisions of Section [01300.] [01340.]

Submit product data for component profiles, materials, perimeter and integral trim[.] [, and space closures.]

Submit samples under provisions of Section [01300.] [01340.]

Submit [two] [_____] samples [_____x_____] inch ([_____x_____] mm) in size illustrating color and finish of exposed to view components.

Submit manufacturer's installation instructions under provisions of Section [01300.] [01340.]

MOCK-UP

Provide mock-up of metal linear ceiling system including integral mechanical and electrical components under provisions of Section [01400.] [01405.]

When accepted, mock-up will demonstrate minimum standard for the Work. Mock-up may [not] remain as part of the Work.

WARRANTY

Provide [five] [_____] year warranty under provisions of Section [01700.] [01740.]

Warranty: Include coverage for corrosion resistance or discoloration of surface finish.

EXTRA MATERIALS

Submit maintenance materials under provisions of Section [01700.] [01750.]

Provide [ten] [_____] [standard lengths] [[_____] ft ([_____] m) long] linear ceiling panels.

PART 2 PRODUCTS

MANUFACTURERS

[__________________________________] Product [__________.]

Other acceptable manufacturers offering equivalent products.

[_________________________] Product [__________.]

[_________________________] Product [__________.]

[_________________________] Product [__________.]

Substitutions: Under provisions of Section [01600.] [01630.]

MATERIALS

Steel Sheet: ANSI/ASTM A446, Grade A, galvanized with [1.25] [_____] oz/sq ft ([380] [_____] gm/sq m) coating, [with [__________] surface paint finish].

****** [OR] ******

Stainless Steel Sheet: ANSI/ASTM A167, type [304] [316].

****** [OR] ******

Aluminum Sheet: ASTM B209, [with [_________] surface paint finish].

Aluminum Extrusions: ANSI/ASTM B221, [mill] [anodized to [__________] finish].

Insulation: [FS HH-I-521] Preformed mineral wool, [with [black plastic] [paper] facing.] [unfaced.].

Suspension Wire: Steel, annealed, [galvanized] [plain] finish, [9] [___] gage ([4] [___] mm) diameter.

COMPONENTS

Linear Panels: [Channel shaped 1 x 3 inch (50 x 150 mm) [square] [bullnosed] edges] [Box shape of [___x___] inch ([___x___] mm) size]; of [equal] [unequal] lengths.

Suspension Members: Formed [steel] [aluminum] sections, with integral attachment points; [galvanized] [primed] finish.

Internal and External Corners: Of same material, thickness, and finish as exposed members; of profile to match system; preformed to required angles. [Back brace internal corners.]

Space Closures: [Recessed] [Flush]; [Extruded vinyl] [Formed steel] [Formed aluminum] sections, snap fit between exposed members.

Expansion Joints: Of same material, thickness, and finish as exposed members.

End Caps: [Molded plastic] [Formed metal], of same color and finish as exposed members.

Edge Molding: Of same material, profile, and color as exposed members.

Splices: Of same material, profile, and color as exposed members.

Accessories: As required to complete the system; color and finish of exposed to view surfaces, same as system.

FINISHES

Exposed Surface Finish: [Enamel] [Anodized] [__________] finish of [__________] color[.] [from manufacturer's standard range.] [as selected.]

****** [OR] ******

Exposed Surface Finish: [Satin chrome] [Polished chrome] [__________][.] finish [from manufacturer's standard range.] [as selected.]

Space Closures: [Black] [__________] color[.] [as selected.]

PART 3 EXECUTION

EXAMINATION

Verify that site conditions are ready to receive work.

Verify field measurements are as [shown on [Drawings.] [shop drawings].] [instructed by the manufacturer.]

Verify that utilities are available, in proper location, and ready for use.

Beginning of installation means installer accepts existing conditions.

PREPARATION

Protect elements surrounding the work of this Section from damage or disfiguration.

INSTALLATION

Install in accordance with [manufacturer's instructions.] [ASTM C636.]

Install Work after major above [ceiling] [soffit] work is complete. Coordinate location of hangers and carrying channels with other work.

Install hangers or inserts. [Coordinate installation of hanger clips during metal deck erection.]

Where ducts or other equipment prevent regular spacing of hangers, reinforce nearest adjacent hangers and related carrying channels to span the required distance.

Suspend system independent of walls, columns, ducts, pipe, or conduit.

Install panel members. [Stagger minimum 12 inches (300 mm)] [Align] joints.

[Butt interior end joints tight.] [Install exterior end joints with [1/16] [_____] inch ([2] [_____] mm) gap for expansion or contraction.]

Install [recessed] closure between linear panels at [interior] [and] [exterior] locations.

Exercise care when site cutting exposed finished components to ensure surface finish is not defaced.

Install edge moldings at intersection of [ceiling] [soffit] and vertical surfaces using maximum lengths.

Field miter corners.

Provide edge moldings at junction with other ceiling finishes.

[Where bullnose masonry units occur, provide preformed closures to match edge molding.]

[Provide end caps for linear panels exposed-to-view.]

Install insulation above ceiling members. Fit tight. [Place facing [down] [up].]

Provide expansion joints to accommodate plus or minus [one] [_____] inch ([25] [_____] mm) movement and maintain visual closure.

ERECTION TOLERANCES

Maximum Variation From Dimensioned Position: [1/4] [_____] inch ([6] [_____] mm).

Maximum Variation From Flat Plane: [1/8] [_____] inch in 10 ft ([3] [_____] mm in 3 m).

CLEANING

Clean work under provisions of [01700.] [01710.]

Clean [polished] [reflective] surfaces.

SCHEDULES

Main Foyer: Box beam design, no space closures, polished chrome finish; refer to reflected plan.

Sloped Ceilings in Stair Wells: Flat panel shape, bullnosed edge, acoustic insulation above, recessed black filler, flat black finish.

END OF SECTION