SECTION 07 42 13

METAL WALL PANELS

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PART 1    GENERAL
1.1	SECTION INCLUDES
A.	Field assembled metal wall panel system including a sealed vapor barrier liner panel, insulation, subgirts and concealed fastener exterior profile.
B.	Uninsulated single-skin concealed fastener metal wall panel system.
C.	Concealed fastener, track mounted rain screen modular wall panel system.
D.	Concealed fastener, continues engagement rain screen modular wall panel system.
1.2	RELATED SECTIONS
A.	Section 05 10 00 - Structural Metal Framing.
B.	Section 05 40 00 - Cold-Formed Metal Framing.
C.	Section 07 21 19 - Foamed-In-Place Insulation.
D.	Section 07 27 00 - Air Barriers.
E.	Section 07 60 00 - Flashing and Sheet Metal.
F.	Section 07 90 00 - Joint Protection.
G.	Section 09 28 13 - Cementitious Backing Boards.
H.	Section 08 90 00 - Louvers and Vents.
1.3	REFERENCES
A.	American Architectural Manufacturer's Association (AAMA):
1.	AAMA 501.1 - Test Method for Water Penetration of Windows, Curtain Walls and Doors Using Dynamic Pressure.
2.	AAMA 508 - Voluntary Test Method and Specification for Pressure Equalized Rain Screen Wall Cladding Systems
3.	AAMA 620 - Voluntary Specification for High Performance Organic Coatings on Coil Coated Architectural Aluminum Substrates.
4.	AAMA 621 - Voluntary Specification for High Performance Organic Coatings on Coil Coated Architectural Hot Dipped Galvanized (HDG) and Zinc-Aluminum Coated Steel Substrates.
5.	AAMA 2605 - Voluntary Specification, Performance Requirements and Test Procedures for Superior Performing Organic Coatings on Aluminum Extrusions and Panels.
B.	ASTM International (ASTM):
1.	ASTM A 653 - Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process.
2.	ASTM A 755/A 755M - Specification for Steel Sheet, Metallic Coated by the Hot-Dip Process and Prepainted by the Coil-Coating Process for Exterior Exposed Building Products.
3.	ASTM B 209 - Specification for Aluminum and Aluminum Alloy Sheet and Plate.
4.	ASTM B 221 - Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes.
5.	ASTM C 236 - Standard Test Method for Steady-State Thermal Performance of Building Assemblies by Means of a Guarded Hot Box.
6.	ASTM C 754 - Specification for Installation of Steel Framing Members to Receive Screw Attached Gypsum Panel Products.
7.	ASTM C 920 - Specification for Elastomeric Joint Sealants.
8.	ASTM C 1007 - Standard Specification for Installation of Load Bearing (Transverse and Axial) Steel Studs and Related Accessories.
9.	ASTM D 3359 - Standard Test Methods for Measuring Adhesion by Tape Tests.
10.	ASTM E 72 - Standard Test Methods of Conducting Strength Tests of Panels for Building Construction.
11.	ASTM E 112 - Standard Test Method for Determining Average Grain Size.
12.	ASTM E 283 - Test Method for Determining the Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors under Specified Pressure Differences across the Specimen.
13.	ASTM E 329 - Standard Specification for Agencies Engaged in Construction Inspection and/or Testing.
14.	ASTM E331 - Test Method for Water Penetration of Exterior Windows, Curtain Walls, and Doors by Uniform Static Air Pressure Difference.
C.	American Iron and Steel Institute (AISI):
1.	Specification for the Design of Cold-Formed Steel Structural Members.
D.	American Institute of Steel Construction (AISC):
1.	Code of Standard Practice.
E.	American Society of Civil Engineers (ASCE):
1.	ASCE-7, Minimum Design Loads for Buildings and Other Structures.
F.	Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA):
1.	Architectural Sheet Metal Manual.
1.4	DEFINITIONS
A.	Cradle to Cradle Certification: The Cradle to Cradle Certification process, administered by McDonough Braungart Design Chemistry (MBDC), HTTP://www.c2ccertified.com, that evaluates materials and product ingredients and the complete formulation for human and environmental health impacts throughout its lifecycle as well as its potential for being truly recycled or safely composted.
1.5	SUBMITTALS
A.	Submit product data, test reports, and certifications in accordance with quality assurance and performance requirements specified herein.
B.	LEED Submittals: Credit MR 4.1/MR4.2, Manufacturer's Product Data indicating the following:
1.	Percentages by weight of post-consumer and pre-consumer recycled content.
2.	Indicate total weight of products provided.
3.	Include statement indicating costs for each product having recycled content.
C.	Cradle to Cradle Certification: Submit minimum of silver level Cradle to Cradle certification www.c2ccertified.com or a comparable independent sustainability audit acceptable to Owner that evaluates and validates materials, material reutilization/design for environment, energy use, water usage, and social responsibility of the product and manufacturing process.
D.	Submit panel shop drawings consisting of design and erection drawings, finish specifications, and other data necessary to clearly describe the design, materials, sizes, layouts, construction details, and erection. Submit small-scale layouts of panels and large-scale details of edge conditions, joints, fastener and sealant placement, flashings, penetrations, and special details. Distinction must be made between factory and field assembled work.
1.	Drawings shall be approved prior to fabrication.
E.	Submit structural design calculations, in accordance with the AISI Specification for the Design of Cold-Formed Steel Structural Members, for the metal wall panel system.
1.	A professional engineer registered in the state where the project is located shall certify the calculations.
F.	Material Samples:
1.	Panels: One of each type, full panel width by 12 inches (305 mm) long.
2.	Fasteners: Two of each type with statement of intended use.
3.	Closures: One of each type metal closure and foam closure as required.
4.	Sealants: One sample of each type with statement of intended use.
5.	Clips: Two of each type.
G.	Selection Samples for Color: For each finish product specified, furnish two color chip samples selected from the manufacturer's full range of available colors and patterns.
H.	Verification Samples for Color: For each finish product specified, two samples, minimum size 6 square inches (150 mm), representing actual product, color, and patterns.
I.	Qualification Information: For Installer firm, proof of installer's manufacturer trained field supervisor.
J.	Warranty: Submit proposed warranty meeting requirements of this Section.
1.6	QUALITY ASSURANCE
A.	Manufacturer's Qualifications: The manufacturer shall have had a minimum of ten years experience in the successful completion of projects employing similar materials, applications, and performance requirements.
1.	Manufacturer shall provide a list of five similar completed projects with addresses of the project location, architect, and owner.
B.	Installer Qualifications: The wall systems contractor shall have had a minimum of ten years experience in the successful completion of projects employing similar materials, applications, and performance requirements.
1.	The wall systems contractor shall provide a list of five similar completed projects with addresses of the project location, architect, and owner.
C.	Buy American Act Certification: Submit documentation certifying that products comply with provisions of the Buy American Act 41 U.S.C 10a - 10d.
D.	Dade Country Approval, Miami-Dade County Notice of Acceptance (NOA).
E.	Calculations supporting structural performance of the wall panels shall be prepared by a professional structural engineer.
F.	Mock-Up: Provide a mock-up for evaluation of surface preparation techniques and application workmanship.
1.	Finish areas designated by Architect.
2.	Do not proceed with remaining work until workmanship, color, and sheen are approved by Architect.
3.	Refinish mock-up area as required to produce acceptable work.
G.	Pre-installation Conference: Conduct conference at Project site in compliance with Division 01 requirements.
1.7	DELIVERY, STORAGE, AND HANDLING
A.	Materials shall be unloaded and stored per the manufacturer's instructions to prevent damage due to handling and weather.
1.8	PROJECT CONDITIONS
A.	Field Measurements not by CENTRIA: It is the panel installers responsibility to verify locations of structural members, adjoining construction and wall openings dimensions by field measurement before panel fabrication and indicate measurements on final shop drawings.
1.	Coordinate with constructions schedule to ensure panel assemblies fit properly and do not delay construction progress.
2.	Established dimensions: where field measurements cannot be made without delaying construction progress, guarantee dimensions and proceed with fabrication of wall panel assemblies corresponding to the established dimensions.
1.9	WARRANTY
A.	Material Warranty: The manufacturer shall warrant that the materials and accessories furnished in accordance with these specifications shall remain free from defects in material and factory workmanship for a period of two years from date of shipment.
B.	Paint Finish Warranty: The manufacturer shall warrant against fading, chalking, peeling, cracking, checking, chipping, or erosion to base metal of the exterior panel finish, in accordance with the paint supplier's standards. 
1.	Warranty Period: 20 years.
PART 2    PRODUCTS
2.1	MANUFACTURERS
A.	Acceptable Manufacturer: CENTRIA, which is located at:<BR />700 State Hwy. 121 , Suite 200<BR />Lewisville, TX 75067<BR />Toll Free Tel: 800-759-7474<BR />Email: request info (info@centria.com);Web: https://www.centria.com 
B.	Substitutions: Not permitted.
C.	Substitutions: Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements. Evidence shall be submitted to demonstrate equivalency to the products and performance levels specified. The written request shall include:
1.	A complete description of the substitution, including details of all transition conditions at panel termination points.
2.	Independent test reports verifying compliance with the performance requirements.
3.	A detailed list of each item that does not fully comply with the specifications.
4.	A letter stating that the manufacturer or wall systems contractor proposing the substitution will pay additional costs incurred by subcontractors affected by the proposed substitution. 
2.2	CONCEALED FASTENER METAL WALL PANELS
A.	System Description:
1.	Metal Wall Panels over Insulated-Composite Backup Panel Wall System: Single-skin concealed fastener metal wall panels serving as the exterior rainscreen cladding component of a metal wall panel system. Insulated composite metal wall backup panels specified in other specification section. Metal wall backup panels provide thermal, air, water, and water vapor control. Metal wall panel installation specified in this Section includes secondary metal subgirt framing for panel attachment.
2.	Metal Wall Panels and Metal Liner Panel Wall System: Single-skin concealed fastener metal wall panels applied as the exterior cladding over wall framing with board insulation and metal liner panels. Metal wall panel installation specified in this Section includes secondary metal subgirt framing for panel attachment and an interior sealed-joint metal liner panel that provides air and water vapor control.
a.	Water-resistive barrier is provided in other specification section.
3.	Metal Wall Panels over Multi-Component Framed Wall System: Single-skin concealed fastener metal wall panels applied as exterior rainscreen cladding. Wall framing indicated with exterior sheathing specified in other specification section. Applied membrane that provides air, moisture, and water vapor control in other specification section. Insulation within the framing specified in other specification section. Metal wall panel installation specified in this Section includes secondary metal subgirt framing and mounting clips for panel attachment.
a.	Air, moisture, and water vapor control membrane is specified in other specification section.
4.	Metal Wall Panels over Outside-Insulated Framed Wall System: Single-skin concealed fastener metal wall panels applied as exterior rainscreen cladding. Wall framing specified in other specification section. Exterior sheathing specified in other specification section. Applied membrane that provides air, moisture, and water vapor control specified in other specification section. Insulation within the framing and applied outboard of the sheathing specified in other specification section. Metal wall panel installation specified in this Section includes secondary metal subgirt framing and mounting clips for panel attachment.
5.	Metal Wall Panels over Masonry Wall System: Single-skin concealed fastener metal wall panels applied as exterior rainscreen cladding over a masonry wall. Rigid board insulation specified in other specification section. Applied membrane that provides air, moisture, and water vapor control specified in other specification section. Metal wall panel installation specified in this Section includes secondary metal subgirt framing and mounting clips for panel attachment.
6.	Metal Wall Panels over Uninsulated Framed Screen Wall System: Single-skin concealed fastener vertical metal wall panels applied as exterior barrier cladding over wall framing specified in other specification section. Water-resistive barrier specified in other specification section. Metal wall panel installation specified in this Section includes secondary metal subgirt framing and mounting clips for panel attachment.
B.	Metal Wall Panels, General: Factory-formed, concealed fastener panels with interconnecting side joints, fastened to supports with concealed fasteners, with factory-applied sealant in side laps when required to meet performance requirements.
C.	System Performance Requirements: Provide metal wall panel assemblies meeting performance requirements as determined by application of specified tests by a qualified testing agency on manufacturer's standard assemblies.
1.	Air Infiltration: Maximum 0.06 cfm/sq. ft. (0.3 L/s per sq. m) per ASTM E 283 at a static-air-pressure difference of 1.57 lbf/sq. ft. (75 Pa), using minimum 10-by-10 foot (3050-by-3050 mm) test panel that includes side joints.
2.	Water Penetration, Static Pressure: No uncontrolled water penetration per ASTM E 331 at a minimum static differential pressure of 6.24 lbf/sq. ft. (299 Pa), using minimum 10-by-10 foot (3050-by-3050 mm) test panel that includes side joints.
3.	Structural Performance: Provide metal wall panel assemblies capable of withstanding the effects of indicated loads and stresses within limits and under conditions indicated, per ASTM E 72:
a.	Wind Loads: Determine loads based on uniform pressure, importance factor, exposure category, and basic wind speed indicated on drawings.
b.	Limits of Deflection: Metal wall panel assembly shall withstand scheduled wind pressure with the following allowable deflection:
1)	Maximum allowable deflection limited to L/180 deflection of panel perimeter normal to plane of wall with no evidence of failure.
c.	Secondary Metal Framing: Design secondary metal framing for metal wall panel assembly according to AISI's "Standard for Cold-Formed Steel Framing - General Provisions." 
4.	Thermal Movements: Allow for thermal movements from variations in both ambient and internal temperatures. Accommodate movement of support structure caused by thermal expansion and contraction.
D.	Metallic-Coated Steel Face Sheet: Coil-coated, ASTM A 755/A 755M.
1.	Zinc-Coated (Galvanized) Steel Sheet: ASTM A 653/A 653M, G90 (Class Z275), structural steel quality.
2.	Aluminum-zinc alloy-coated Steel Sheet: ASTM A 792/A 792 M, Class AZ50 Grade 50 (Class AZM150, Grade 275), structural steel quality.
3.	Face Sheet: Minimum 0.024 inch/24 gage (0.60 mm) nominal uncoated thickness.
4.	Face Sheet: Minimum 0.030 inch/22 gage (0.76 mm) nominal uncoated thickness.
5.	Face Sheet: Minimum 0.036 inch/20 gage (0.91 mm) nominal uncoated thickness.
6.	Face Sheet: Minimum 0.047 inch/18 gage (1.19 mm) nominal uncoated thickness.
7.	Surface: Smooth.
8.	Surface: Non-Directional Embossed.
E.	Aluminum Face Sheet: Smooth surface coil-coated, ASTM B 209, 3003-H14 or 5052-H32 alloy.
1.	Face Sheet: 0.032 inch (0.8 mm) nominal thickness.
2.	Face Sheet: 0.040 inch (1.0 mm) nominal thickness.
3.	Face Sheet: 0.050 inch (1.27 mm) nominal thickness.
4.	Surface: Smooth.
5.	Surface: Non-Directional Embossed.
6.	Aluminum Products Recycled Content: Average of postconsumer recycled content plus one-half of pre-consumer recycled content not less than 50 percent.
F.	Stainless-Steel Face Sheet: ASTM A 666, architectural grade alloy type as indicated.
1.	Face Sheet: 0.024 inch/24 gage (0.60 mm) nominal thickness.
2.	Face Sheet: 0.030 inch/22 gage (0.76 mm), nominal thickness.
3.	Face Sheet: 0.036 inch/20 gage (0.91 mm), nominal thickness.
4.	Alloy: Type 304, bright, non-directional polish, No. 2B.
5.	Alloy: Type 316, bright, non-directional polish, No. 2B.
G.	Reveal-joint profile with raised flat pan MWP#___:
1.	Basis of Design Product: CENTRIA, CS-200.
2.	Panel Coverage: 12 inches (305 mm).
3.	Panel Height: 0.875 inch (22 mm).
H.	Reveal-joint profile with raised flat pan and concealed extended fastener leg MWP#___:
1.	Basis of Design Product: CENTRIA, CS-200E.
2.	Panel Coverage: 12 inches (305 mm).
3.	Panel Height: 0.875 inch (22 mm).
I.	Double-reveal profile with raised flat pan and rib MWP#___: 
1.	Basis of Design Product: CENTRIA, CS-210.
2.	Panel Coverage: 12 inches (305 mm).
3.	Panel Height: 0.875 inch (22 mm).
J.	Double-reveal profile with raised flat pan and rib, with concealed extended fastener leg MWP#___:
1.	Basis of Design Product: CENTRIA, CS-210E.
2.	Panel Coverage: 12 inches (305 mm).
3.	Panel Height: 0.875 inch (22 mm).
K.	Three-rib Profile MWP#___:
1.	Basis of Design Product: CENTRIA, CS-260.
2.	Panel Coverage: 12 inches (305 mm).
3.	Panel Height: 0.875 inch (22 mm).
L.	Three-rib profile with concealed extended fastener leg MWP#___:
1.	Basis of Design Product: CENTRIA, CS-260E.
2.	Panel Coverage: 12 inches (305 mm).
3.	Panel Height: 0.875 inch (22 mm).
M.	Double-reveal profile with raised flat pan and rib MWP#___: 
1.	Basis of Design Product: CENTRIA, CS-610.
2.	Panel Coverage: 16 inches (406 mm).
3.	Panel Height: 0.875 inch (22 mm).
N.	Double-reveal profile with raised flat pan and rib, with concealed extended fastener leg MWP#___:
1.	Basis of Design Product: CENTRIA, CS-610E.
2.	Panel Coverage: 16 inches (406 mm).
3.	Panel Height: 0.875 inch (22 mm).
O.	Double-reveal profile with evenly-spaced raised flat pan between reveals MWP#___:
1.	Basis of Design Product: CENTRIA, CS-620.
2.	Panel Coverage: 16 inches (406 mm).
3.	Panel Height: 0.875 inch (22 mm).
P.	Double-reveal profile with evenly-spaced raised flat pan between reveals and concealed extended fastener leg MWP#___:
1.	Basis of Design Product: CENTRIA, CS-620E.
2.	Panel Coverage: 16 inches (406 mm).
3.	Panel Height: 0.875 inch (22 mm).
Q.	Four-rib profile with recessed flat pan between ribs MWP#___:
1.	Basis of Design Product: CENTRIA, CS-660.
2.	Panel Coverage: 16 inches (406 mm).
3.	Panel Height: 0.875 inch (22 mm).
R.	Four-rib profile with recessed flat pan between ribs and concealed extended fastener leg MWP#___:
1.	Basis of Design Product: CENTRIA, CS-660E.
2.	Panel Coverage: 16 inches (406 mm).
3.	Panel Height: 0.875 inch (22 mm).
S.	Exposed Coil-Coated Finish System:
1.	Fluoropolymer Two-Coat System: 0.2-mil primer with 0.8-mil 70 percent PVDF fluoropolymer color coat.
a.	AAMA 620.
b.	AAMA 621.
c.	Basis of Design: CENTRIA Fluorofinish.
2.	Fluoropolymer Two-Coat System: 0.8 mil primer with 0.8 mil 70 percent PVDF fluoropolymer color coat.
a.	AAMA 620.
b.	AAMA 621.
c.	Basis of Design: CENTRIA Duraguard.
3.	Fluoropolymer Three-Coat System: 0.8 mil primer with 0.8 mil 70 percent PVDF fluoropolymer color coat, and a 0.8 mil 70 percent PVDF fluoropolymer clear coat.
a.	AAMA 620.
b.	AAMA 621.
c.	Basis of Design: CENTRIA Duraguard Plus.
4.	Fluoropolymer Two-Coat Mica System: 0.25-mil primer with 0.8-mil 70 percent PVDF fluoropolymer color coat providing a pearlescent appearance.
a.	AAMA 620.
b.	AAMA 621.
c.	Basis of Design: CENTRIA Sundance Mica.
5.	Fluoropolymer Three-Coat Metallic System: 0.2 mil primer with 0.8-mil 70 percent PVDF fluoropolymer color coat containing metal flakes, and a 0.5-mil 70 percent PVDF fluoropolymer clear coat.
a.	AAMA 620.
b.	AAMA 621.
c.	Basis of Design: CENTRIA Sundance AM.
6.	Fluoropolymer Two-Coat Corrosion and Abrasion Resistant System: 3.0 mil primer with 0.8 mil 70 percent PVDF fluoropolymer color coat 
a.	Interior Finish: 3.0 mil primer and wash coat topcoat.
b.	Interior Finish: 3.0 mil primer and polyester topcoat.
c.	Interior Finish: 3.0 mil primer and urethane topcoat.
d.	Basis of Design: CENTRIA Versacor Ultra PF.
7.	Urethane Two-Coat Corrosion and Abrasion Resistant System: 3.0 mil primer with 1.5 mil urethane color coat.
a.	Interior Finish: 3.0 mil primer and wash coat topcoat.
b.	Interior Finish: 3.0 mil primer and polyester topcoat.
c.	Interior Finish: 3.0 mil primer and urethane topcoat.
d.	Basis of Design: CENTRIA Versacor Ultra TF.
8.	Urethane Two-Coat Plus Corrosion and Abrasion Resistant System: 3.0 mil primer with 3.0 mil urethane color coat.
a.	Interior Finish: 3.0 mil primer and wash coat topcoat.
b.	Interior Finish: 3.0 mil primer and polyester topcoat.
c.	Interior Finish: 3.0 mil primer and urethane topcoat.
d.	Basis of Design: CENTRIA Versacor Ultra HF.
9.	Fluoropolymer Three Coat System: 0.2 mil primer with a 0.5 mil polyester base coat and a 0.8 mil nominal PVDF fluoropolymer top coat providing an iridescent finish.
a.	Basis of Design: CENTRIA KolorShift.
T.	Color: 
1.	Exterior Surface: As indicated.
2.	Exterior Surface: As selected by Architect from manufacturer's standard colors.
3.	Exterior Surface: Match Architect's custom color.
4.	Interior Surface: Manufacturer's standard primer color.
5.	Interior Surface: As indicated.
6.	Interior Surface: As selected by Architect from manufacturer's standard colors.
7.	Interior Surface: Match Architect's custom color.
2.3	LINER PANELS
A.	Metal Liner Panels, General: Factory-formed panels with interconnecting side joints, fastened to supports with fasteners.
1.	Material: Zinc-Coated (Galvanized) Steel Sheet.
2.	Material: Aluminum-zinc alloy-coated Steel Sheet.
3.	Face Sheet: Minimum 0.024 inch/24 gage (0.60 mm) nominal uncoated thickness.
4.	Face Sheet: Minimum 0.030 inch/22 gage (0.76 mm) nominal uncoated thickness.
5.	Face Sheet: Minimum 0.036 inch/20 gage (0.91 mm) nominal uncoated thickness.
6.	Face Sheet: Minimum 0.047 inch/18 gage (1.19 mm) nominal uncoated thickness.
7.	Panel Sheet: Solid.
8.	Panel Sheet: Perforated, with 10 percent free area.
9.	Surface: Smooth.
10.	Surface: Non-Directional Embossed.
B.	Metal liner panel MLP#___:
1.	Basis of Design Product: CENTRIA, L2.
2.	Panel Coverage: 24 inches (610 mm).
3.	Panel Height: 1-3/8 inches (35 mm).
4.	Stiffening Beads: Two.
C.	Metal liner panel MLP#___:
1.	Basis of Design Product: CENTRIA, L2-2.
2.	Panel Coverage: 24 inches (610 mm).
3.	Panel Height: 2 inches (50 mm).
4.	Stiffening Beads: Two.
D.	Metal liner panel MLP#___:
1.	Basis of Design Product: CENTRIA, L2-3.
2.	Panel Coverage: 24 inches (610 mm).
3.	Panel Height: 3 inches (76 mm).
4.	Stiffening Beads: Two.
E.	Exposed Coil-Coated Finish System:
1.	Fluoropolymer Two-Coat System: 0.2-mil primer with 0.8-mil 70 percent PVDF fluoropolymer color coat, AAMA 621.
a.	Basis of Design: CENTRIA Fluorofinish.
2.	Fluoropolymer Two-Coat System: 0.8 mil primer with 0.8 mil 70 percent PVDF fluoropolymer color coat, AAMA 621.
a.	Basis of Design: CENTRIA Duraguard.
3.	Fluoropolymer Three-Coat System: 0.8 mil primer with 0.8 mil 70 percent PVDF fluoropolymer color coat, and a 0.8 mil 70 percent PVDF fluoropolymer clear coat, AAMA 621.
a.	Basis of Design: CENTRIA Duraguard Plus.
4.	Fluoropolymer Two-Coat Mica System: 0.25-mil primer with 0.8-mil 70 percent PVDF fluoropolymer color coat providing a pearlescent appearance, AAMA 621.
a.	Basis of Design: CENTRIA Sundance Mica.
5.	Fluoropolymer Three-Coat Metallic System: 0.2 mil primer with 0.8-mil 70 percent PVDF fluoropolymer color coat containing metal flakes, and a 0.5-mil 70 percent PVDF fluoropolymer clear coat, AAMA 621.
a.	Basis of Design: CENTRIA Sundance AM.
6.	Fluoropolymer Two-Coat Corrosion and Abrasion Resistant System: 3.0 mil epoxy-modified primer with 0.8 mil 70 percent PVDF fluoropolymer color coat 
a.	Basis of Design: CENTRIA Versacor Ultra PF.
b.	Interior Exposed Finish: 3.0 mil primer and wash coat topcoat.
c.	Interior Exposed Finish: 3.0 mil primer and polyester topcoat.
d.	Interior Exposed Finish: 3.0 mil primer and urethane topcoat.
7.	Urethane Two-Coat Corrosion and Abrasion Resistant System: 3.0 mil primer with 1.5 mil urethane color coat.
a.	Basis of Design: CENTRIA Versacor Ultra TF.
b.	Interior Exposed Finish: 3.0 mil primer and wash coat topcoat.
c.	Interior Exposed Finish: 3.0 mil primer and polyester topcoat.
d.	Interior Exposed Finish: 3.0 mil primer and urethane topcoat.
8.	Urethane Two-Coat Plus Corrosion and Abrasion Resistant System: 3.0 mil primer with 3.0 mil urethane color coat.
a.	Basis of Design: CENTRIA Versacor Ultra HF.
b.	Interior Exposed Finish: 3.0 mil primer and wash coat topcoat.
c.	Interior Exposed Finish: 3.0 mil primer and polyester topcoat.
d.	Interior Exposed Finish: 3.0 mil primer and urethane topcoat.
9.	Fluoropolymer Three Coat System: 0.2 mil primer with a 0.5 mil polyester base coat and a 0.8 mil nominal PVDF fluoropolymer top coat providing an iridescent finish.
a.	Basis of Design: CENTRIA KolorShift.
F.	Color: 
1.	Interior Exposed Surface: As indicated.
2.	Interior Exposed Surface: As selected by Architect from manufacturer's standard colors.
3.	Interior Exposed Surface: Match Architect's custom color.
4.	Concealed Surface: Manufacturer's standard primer color.
2.4	CONCEALED FASTENER, TRACK MOUNTED MODULAR WALL PANEL SYSTEM
A.	Basis of Design: CENTRIA Intercept V-Trac Modular Metal Wall Panel System. Provide basis of design product, or comparable product approved by Architect prior to bid.
B.	Modular Metal Panel Wall System: Rainscreen design consisting of dry seal joinery, attachment system components, and associated accessories necessary to minimize water penetration and induce air circulation in the space behind the panel system. Moisture weeping trim at panel base details allows water to drain out of the system.
C.	Modular metal wall panel system consisting of aluminum panels in a rainscreen application as part of the assembly described below.
1.	Modular Metal Wall Panels over Insulated-Composite Backup Panel Wall System: 
a.	Applied as exterior rainscreen cladding component of a metal wall panel system.
b.	Includes insulated composite metal wall backup panels specified in Division 07 Section "Insulated-Composite Metal Wall Panel Backup System." 
c.	Metal wall backup panels provide thermal, air, water, and water vapor control. 
d.	Metal wall panel installation specified in this Section includes secondary metal subgirt framing for panel attachment.
2.	Modular Metal Wall Panels over Multi-Component Framed Wall System: 
a.	Applied as exterior rainscreen cladding over wall framing specified in Division 05 Section "Cold-Formed Metal Framing." 
b.	Exterior sheathing specified in Division 06 Section "Sheathing."
c.	An applied membrane providing air, moisture, and water vapor control specified in Division 07 Section "Air Barriers"
d.	Insulation within the framing specified in Division 07 Section "Thermal Insulation."
e.	Metal wall panel installation includes mounting clips for panel attachment.
f.	Provide secondary metal subgirt framing.
g.	Water-resistive barrier is provided under Division 07 Section "Weather Barriers."
h.	Air, moisture, and water vapor control membrane is provided under Division 07 Section "Air Barriers."
3.	Modular Metal Wall Panels over Outside-Insulated Framed Wall System: 
a.	Applied as exterior rainscreen cladding over wall framing specified in Division 05 Section "Cold-Formed Metal Framing." 
b.	Exterior sheathing specified in Division 06 Section "Sheathing. "
c.	An applied membrane providing air, moisture, and water vapor control specified in Division 07 Section "Air Barriers."
d.	Insulation applied outboard of the sheathing specified in Division 07 Section "Thermal Insulation."
e.	Metal wall panel installation includes mounting clips for panel attachment.
f.	Provide secondary metal subgirt framing.
g.	Water-resistive barrier is provided under Division 07 Section "Weather Barriers."
h.	Air, moisture, and water vapor control membrane is provided under Division 07 Section "Air Barriers."
4.	Modular Metal Wall Panels over Masonry Wall System: 
a.	Applied as exterior rainscreen cladding over a masonry wall specified in Division 04 Section "Unit Masonry."
b.	An applied membrane providing air, moisture, and water vapor control specified in Division 07 Section "Air Barriers."
c.	Metal wall panel installation includes secondary metal subgirt framing for panel attachment.
d.	Provide rigid board insulations as specified in Division 04 Section "Unit Masonry."
e.	Water-resistive barrier is provided under Division 07 Section "Weather Barriers."
f.	Air, moisture, and water vapor control membrane is provided under Division 07 Section "Air Barriers."
D.	Performance Requirements: Modular metal wall panel system meeting performance requirements as determined by application of specified tests by a qualified testing agency on manufacturer's standard assemblies.
1.	System Performance:
a.	Submit Prior to Bid: A third party test report utilizing standard ASTM E283, E331 and AAMA 501 procedures following the test protocol described in AAMA 508-07.
b.	Test Panel: Must include horizontal joint, with an imperfect air barrier as part of AAMA 508 and ASTM E 331 water penetration testing. 
1)	Maximum Pressure for Testing: 15 psf, or 10 percent of maximum positive design pressure.
c.	Air/Moisture Barrier: Refer to Division 07 Section "Insulated Core Metal Wall Backup Panel."
d.	Air/Moisture Barrier: Refer to Division 07 air barrier section.
2.	Thermal Movements: Allow for thermal movements from variations in both ambient and internal temperatures.
3.	Wall systems that incorporate foam plastic insulation must be tested by foam plastic supplier in accordance with NFPA-285.
E.	Modular Metal Panels: Factory-formed, aluminum-faced panels fabricated from aluminum coil coated sheet.
1.	Panel Depth: 1-1/2 inches (38 mm).
2.	Panel Flatness: Maximum allowable distortion: 1/32 inch in 24 inches (0.8 mm in 600 mm) in any direction. Panel lines, breaks, and angles shall be sharp and true, and surfaces shall be free from warp or buckle.
3.	Stiffeners: Manufacturer's standard stiffener as required to meet flatness requirements.
4.	Panel Joints: 3/4 inch (19 mm).
5.	Panel Sizes: As indicated on drawings.
6.	Standard System Depth: 2-1/2 inches (63.5 mm).
F.	Material: Aluminum Sheet.
1.	Smooth surface coil-coated sheet, ASTM B209, 3105-H14 Alloy.
2.	Aluminum Material: Tension-leveled.
3.	Thickness: 0.060 inch (1.5 mm) nominal.
4.	Weight: Approximately 1lb per square foot.
G.	Aluminum Extrusions: ASTM B 221, 6063 T5 Aluminum.
H.	Aluminum Face Sheet Coil-Coated Finish:
1.	Fluoropolymer Two-Coat System: 0.2-mil primer with 0.8-mil 70 percent PVDF fluoropolymer color coat, AAMA 620.
a.	Basis of Design: CENTRIA Fluorofinish.
2.	Fluoropolymer Two-Coat Mica System: 0.2-mil primer with 0.8-mil 70 percent PVDF fluoropolymer color coat providing a pearlescent appearance, AAMA 620.
a.	Basis of Design: CENTRIA Sundance Mica.
3.	Fluoropolymer Three-Coat Metallic System: 0.2 mil primer with 0.8-mil 70 percent PVDF fluoropolymer color coat containing metal flakes, and a 0.5-mil 70 percent PVDF fluoropolymer clear coat, AAMA 620.
a.	Basis of Design: CENTRIA Sundance AM.
4.	Fluoropolymer Three Coat System: 0.2 mil primer with a 0.5 mil polyester base coat and a 0.8 mil nominal PVDF fluoropolymer top coat providing an iridescent finish.
a.	Basis of Design: CENTRIA KolorShift.
I.	Unexposed Finish: Manufacturer's standard nominal 0.5 mil (0.0127 mm) nominal DFT backer coating.
J.	Exposed Trim, flashings and Fastener Finish: Match panel finish.
1.	Thickness: 0.060 inch (1.5 mm) nominal.
2.	Refer to section 07 62 00.
K.	Accessories: Provide manufacturer's factory-formed clips, shims, flashings, sealants, and tapes for a complete installation.
L.	Fabrication - General: Fabricate modular metal panels and accessories at factory identical to tested units. Use manufacturer's standard procedures and processes necessary to meet performance requirements.
1.	Provide components that are products of one manufacturer, including modular metal panels, extrusions, head and sill trim, bottom weep, base extrusion, and metal copings.
2.	Modular Metal Panels: Fabricate with extruded aluminum stiffeners requiring no further fabrication or modification in field.
a.	Horizontal Joints: Dry seal, drained and pressure equalized.
b.	Vertical Joints: Pre-formed panel returns and aluminum extrusion.
c.	Reveals: 3/4 inch (19 mm) wide.
d.	Standard System Depth: 2-1/4 inches (63.5 mm)
2.5	CONCEALED FASTENER, CONTINUES ENGAGEMENT MODULAR WALL PANEL SYSTEM.
A.	Basis of Design: CENTRIA Intercept Entyre Modular Metal Wall Panel System. Provide basis of design product, or comparable product approved by Architect prior to bid.
B.	System Description: Modular metal wall panel system consisting of aluminum panels in a rainscreen application as part of the assembly described below.
1.	Modular Metal Wall Panels over Insulated-Composite Backup Panel Wall System: Modular metal wall panels applied as the exterior rainscreen cladding component of a metal wall panel system that includes insulated composite metal wall backup panels specified in Division 07 Section "Insulated-Composite Metal Wall Panel Backup System." Metal wall backup panels provide thermal, air, water, and water vapor control. Metal wall panel installation specified in this Section includes secondary metal subgirt framing for panel attachment.
2.	Modular Metal Wall Panels over Multi-Component Framed Wall System: Modular metal wall panels applied as exterior rainscreen cladding over wall framing specified in Division 05 Section "Cold-Formed Metal Framing" with exterior sheathing specified in Division 06 Section "Sheathing", an applied membrane that provides air, moisture, and water vapor control specified in Division 07 Section "Air Barriers", and insulation within the framing specified in Division 07 Section "Thermal Insulation". Metal wall panel installation specified in this Section includes mounting clips for panel attachment.
a.	Provide secondary metal subgirt framing.
b.	Water-resistive barrier is provided under Division 07 Section "Weather Barriers."
c.	Air, moisture, and water vapor control membrane is provided under Division 07 Section "Air Barriers."
3.	Modular Metal Wall Panels over Outside-Insulated Framed Wall System: Modular metal panels applied as exterior rainscreen cladding over wall framing specified in Division 05 Section "Cold-Formed Metal Framing" with exterior sheathing specified in Division 06 Section "Sheathing", an applied membrane that provides air, moisture, and water vapor control specified in Division 07 Section "Air Barriers", and insulation applied outboard of the sheathing specified in Division 07 Section "Thermal Insulation". Metal wall panel installation specified in this Section includes mounting clips for panel attachment.
a.	Provide secondary metal subgirt framing.
b.	Provide insulation within the framing.
c.	Water-resistive barrier is provided under Division 07 Section "Weather Barriers."
d.	Air, moisture, and water vapor control membrane is provided under Division 07 Section "Air Barriers."
4.	Modular Metal Wall Panels over Masonry Wall System: Modular metal wall panels applied as exterior rainscreen cladding over a masonry wall specified in Division 04 Section "Unit Masonry" and an applied membrane that provides air, moisture, and water vapor control specified in Division 07 Section "Air Barriers". Metal wall panel installation specified in this Section includes secondary metal subgirt framing for panel attachment.
a.	Provide rigid board insulations as specified in Division 04 Section "Unit Masonry".
b.	Water-resistive barrier is provided under Division 07 Section "Weather Barriers."
c.	Air, moisture, and water vapor control membrane is provided under Division 07 Section "Air Barriers."
C.	Performance Requirements:
1.	General: Provide modular metal wall panel system meeting performance requirements as determined by application of specified tests by a qualified testing agency on manufacturer's standard assemblies.
2.	Structural Performance: Design modular metal wall panel system fabricated to withstand the effects of wind loads under conditions indicated below.
a.	Wind Loads: Determine loads based on uniform pressure, building category, exposure category, and basic wind speed indicated on drawings.
b.	Air/Moisture Barrier: Refer to Division 07 Section "Insulated-Composite Metal Wall Panel Backup system".
c.	Air/Moisture Barrier: Refer to Division 07 "Air Barrier" section.
3.	Thermal Movements: Allow for thermal movements from variations in both ambient and internal temperatures. Accommodate movement of support structure caused by thermal expansion and contraction.
4.	Wall systems that incorporate foam plastic insulation must be tested by the foam plastic supplier in accordance with NFPA-285.
D.	Modular Metal Panels: Factory-formed, aluminum-faced panels fabricated from 0.060 inch (1.5 mm) thick aluminum coil coated sheet.
1.	Panel Depth: 1-3/8 inches (35 mm).
2.	Panel Flatness: Maximum allowable distortion: 1/32 inch in 24 inches (0.813 mm in 610 mm) in any direction. Panel lines, breaks, and angles shall be sharp and true, and surfaces shall be free from warp or buckle.
3.	Clips: Manufacturer's standard clips as required to meet performance requirements.
4.	Panel Joints: 3/4 inch(19 mm)
5.	Panel Sizes: As indicated on drawings.
E.	Material: Aluminum Sheet
1.	Smooth surface coil-coated sheet, ASTM B209, 3105-H14 Alloy.
2.	Aluminum Material: Tension-leveled.
3.	Thickness: 0.060 inch (1.5 mm) nominal.
4.	Weight: Approximately 1lb per square foot.
F.	Aluminum Face Sheet Coil-Coated Finish:
1.	Fluoropolymer Two-Coat System: 0.2-mil primer with 0.8-mil 70 percent PVDF fluoropolymer color coat, AAMA 620.
a.	Basis of Design: CENTRIA Fluorofinish.
2.	Fluoropolymer Two-Coat Mica System:0.2-mil primer with 0.8-mil 70 percent PVDF fluoropolymer color coat providing a pearlescent appearance, AAMA 620.
a.	Basis of Design: CENTRIA Sundance Mica.
3.	Fluoropolymer Three-Coat Metallic System: 0.2 mil primer with 0.8-mil 70 percent PVDF fluoropolymer color coat containing metal flakes, and a 0.5-mil 70 percent PVDF fluoropolymer clear coat, AAMA 620.
a.	Basis of Design: CENTRIA Sundance AM.
4.	Fluoropolymer Three Coat System: 0.2 mil primer with a 0.5 mil polyester base coat and a 0.8 mil nominal PVDF fluoropolymer top coat providing an iridescent finish.
a.	Basis of Design: CENTRIA KolorShift.
5.	Color: As selected by Architect from manufacturer's standard colors.
6.	Color: Match Architect's custom color.
G.	Unexposed Finish: Manufacturer's standard nominal 0.5 mil nominal DFT backer coating.
H.	Exposed Trim, flashings and Fastener Finish: Match panel finish.
1.	Thickness: 0.060 inch (1.5 mm) nominal
2.	Refer to section 07 6200
I.	Fabrication: Fabricate modular metal panels requiring no further fabrication or modification in field.
1.	Horizontal Joints: Dry seal, drained and back ventilated.
2.	Vertical Joints: Pre-formed returns
3.	Reveals: 3/4 inch (19 mm)
4.	Standard System Depth: 1-3/8 inches (35 mm)
2.6	METAL WALL PANEL ACCESSORIES
A.	Metal Wall Panel Backup System: Refer to related specification section for requirements,
B.	Metal Wall Panel Accessories, General: Provide complete metal wall panel assembly incorporating trim, copings, fasciae, parapet caps, soffits, sills, inside and outside corners, and miscellaneous flashings. Provide manufacturer's factory-formed clips, shims, flashings, gaskets, lap tapes, closure strips, and caps for a complete installation. Fabricate and install accessories in accordance with SMACNA Manual.
C.	Extruded Trim: Manufacturer's complementary aluminum extrusions for head, jamb, sill, base, flush, reveal, inside and outside corner, endwall, and expansion joint details. Finish to match metal wall panels.
1.	Basis of Design: CENTRIA, Microline Extrusions.
D.	Mitered Corners: Structurally-bonded horizontal interior and exterior trimless corners matching metal wall panel material, profile, and factory-applied finish, fabricated and finished by metal wall panel manufacturer.
1.	Welded, riveted, fastened, or field- fabricated corners do not meet the requirements of this specification.
2.	Basis of Design: CENTRIA, MicroSeam Corners.
E.	Formed Flashing and Trim: Match material, thickness, and color of metal wall panel face sheets.
F.	Sealants: Type recommended by metal wall panel manufacturer for application, meeting requirements of Joint Sealants section.
G.	Flashing Tape: 4 inches (102 mm) wide self-adhering butyl flashing tape.
H.	Fasteners, General: Self-tapping screws, bolts, nuts, and other acceptable fasteners recommended by panel manufacturer. Where exposed fasteners cannot be avoided for miscellaneous applications, supply corrosion-resistant fasteners with heads matching color of metal wall panels by means factory-applied coating.
I.	Concealed Clips: Galvanized steel, 0.051 inch/16 gauge (1.3 mm) thick, designed to allow unimpeded thermal movement of panel and configured to hold panel minimum 1/2 inch (13 mm) from substrate.
2.7	WALL LOUVER UNITS
A.	Wall Louvers, General: Metal louvers, designed to integrate with metal wall panel profile and secondary support system without receptor channels or other flashing, of types and performance indicated.
B.	Horizontal, Drainable-Blade Fixed Louver:
1.	Louver Size: As indicated on Drawings.
2.	Louver Depth: Match metal wall panel system depth. 
3.	Free Area: 30 percent.
C.	Base Metal and Finish: 
1.	Match metal wall panel base metal and finish.
D.	Louver Screens: Mounted in removable aluminum frame.
1.	Bird Screen: 1/2-inch (12 mm) mesh aluminum, crimped.
2.	Insect Screen: 14-18 mesh aluminum, crimped.
2.8	SECONDARY METAL SUBGIRT FRAMING
A.	Miscellaneous Framing Components, General: Cold-formed metallic-coated steel sheet, ASTM A 653/A 653M, G90 (Z180).
1.	Hat Channels: 0.053 inch/16 gauge (1.34 mm) minimum.
2.	Sill Channels: 0.053 inch/16 gauge (1.34 mm) minimum.
B.	Miscellaneous Framing Components, General: Cold-formed metallic-coated steel sheet, ASTM C 645, Grade 50, with ASTM A 653/A 653M, G90 (Z180) hot-dip galvanized zinc coating.
1.	Hat Channels: 0.0451 inch/18 gauge (1.15 mm) minimum.
2.	Sill Channels: 0.0451 inch/18 gauge (1.15 mm) minimum.
PART 3    EXECUTION
3.1	EXAMINATION
A.	Examine wall panel substrate with Installer present. Inspect for erection tolerances and other conditions that would adversely affect installation of metal wall panels.
B.	Wall Substrate: Confirm that wall substrate is within tolerances acceptable to metal wall panel system manufacturer.
1.	Maximum substrate and framing deviations from flat plane acceptable:
a.	1/4-inch in 20 feet (6 mm in 6 m) vertically or horizontally.
b.	1/2-inch (13 mm) across building elevation.
c.	1/8-inch in 5 feet (3 mm in 1.5 m).
C.	Framing: Inspect framing that will support metal wall panels to determine if support components are installed as indicated on approved shop drawings. Confirm presence of acceptable framing members at recommended spacing to match installation requirements of metal wall panels.
D.	Air/Moisture Barriers: Confirm that work has been completed, inspected, and tested as required.
E.	Openings: Verify that window, door, louver and other penetrations match layout on shop drawings.
F.	Correct out-of-tolerance work and other deficient conditions prior to proceeding with metal wall panel system installation.
3.2	SECONDARY FRAMING INSTALLATION
A.	Secondary Metal Subgirt Framing: Install secondary metal framing components to tolerances indicated, as shown on approved shop drawings. Install secondary metal framing and other metal panel supports per ASTM C 1007 and metal wall panel manufacturer's recommendations.
3.3	METAL WALL PANEL INSTALLATION
A.	General: Install metal wall panels in accordance with approved shop drawings and manufacturer's recommendations. Install metal wall panels in orientation, sizes, and locations indicated. Anchor metal wall panels and other components securely in place. Provide for thermal and structural movement:
1.	Insulated-Composite Metal Wall Backup Panels: Install in accordance with requirements of related section for Insulated-Composite Metal Wall Backup Panels.
B.	Attach panels to metal framing using recommended clips, screws, fasteners, sealants, and adhesives indicated on approved shop drawings.
1.	Fasteners for Steel Wall Panels: Stainless-steel for exterior locations and locations exposed to moisture; carbon steel for interior use only.
2.	Fasten metal wall panels to supports with concealed clips at each joint at location, spacing, and with fasteners recommended by manufacturer. Install clips to supports with self-tapping fasteners.
3.	Provide weatherproof escutcheons for pipe and conduit penetrating exterior walls.
4.	Dissimilar Materials: Where elements of metal wall panel system will come into contact with dissimilar materials, treat faces and edges in contact with dissimilar materials as recommended by manufacturer.
C.	Joint Sealers: Install joint sealants where indicated on approved shop drawings.
3.4	METAL WALL PANEL INSTALLATION
A.	General: Install modular metal panel system in accordance with approved shop drawings and manufacturer's recommendations.
B.	Installation: Attach panels to metal sub-framing using recommended clips, screws, fasteners, sealants, and adhesives indicated on approved shop drawings.
1.	Horizontal Joinery: Working from base of installation to top, connect upper panel to lower panel at joinery.
2.	Vertical Joinery: Provide reveal between vertical ends of panels as shown on shop drawings.
3.	Galvanic Action: Where elements of modular metal wall system will come into contact with dissimilar materials, treat faces and edges in contact with dissimilar materials as recommended by manufacturer.
C.	Rainscreen Installation: Proceed with installation of manufacturer's dry seal horizontal joinery.
3.5	ACCESSORY INSTALLATION
A.	General: Install metal wall panel accessories with positive anchorage to building and provide for thermal expansion. Coordinate installation with flashings and other components.
1.	Install related flashings and sheet metal trim per requirements of section Sheet Metal Flashing and Trim.
2.	Install components required for a complete metal wall panel assembly, including trim, copings, corners, lap strips, flashings, sealants, fillers, closure strips, and similar items.
3.	Comply with performance requirements and manufacturer's written installation instructions. 
4.	Provide concealed fasteners except where noted on approved shop drawings.
5.	Set units true to line and level as indicated.
3.6	FIELD QUALITY CONTROL
A.	Manufacturer's Field Service: Engage a service representative authorized by metal wall panel manufacturer to inspect completed installation. Submit written report. 
B.	Correct deficiencies noted in manufacturer's report.
3.7	CLEANING AND PROTECTION
A.	Remove temporary protective films. Clean finished surfaces as recommended by metal wall panel manufacturer. Clear weep holes and drainage channels of obstructions, dirt, and sealant. Maintain in a clean condition during construction.
B.	Replace damaged panels and accessories that cannot be repaired by finish touch-up or minor repair.

END OF SECTION