CENTRIA Exposed Fastener Series Metal Wall Panels

Transcription

1 CENTRIA Exposed Fastener Series Metal Wall Panels CENTRIA Exposed Fastener Series Metal Wall Panels are a versatile design choice for both new and retrofit projects. Exposed Fastener Metal Wall Panels may be installed horizontally or vertically and may be inverted if desired. Panels are available with hot-dip galvanized, Galvalume, or Galvalume Plus coated steel, aluminum and uncoated stainless steel substrates. Exposed Fastener Metal Wall Panels are manufactured with a variety of profiles and surface treatments, which are especially attractive to creative designers. CENTRIA Exposed Fastener Series Metal Wall Panels are manufactured and coated with CENTRIA's own Fluorofinish Kynar 500 or Hylar based fluoropolymer or Versacor corrosion- and abrasionresistant finishes. Highly UV resistant and durable in the face of chemical and air borne pollution, salt spray and wind-driven sand, CENTRIA coatings set the standard for the industry. CENTRIA coatings are available in over 60 standard colors and additional custom colors. CENTRIA metal wall panels may be used as a single-skin application, with metal liner panels, or as the exterior cladding components of a wall assembly that includes CENTRIA MetalWrap insulated core metal wall backup panels providing an insulated substrate complete with moisture, air, and vapor control. CENTRIA Microline trim extrusions, used with 1 1/2-inch-deep horizontal panel profiles, offer the designer an integrated trim system that ensures aesthetic control over the profile of visual components of the wall assembly. CENTRIA MicroSeam mitered trimless corners accentuate horizontal lines. Available Profile Louvers match certain metal wall panel profiles and finishes. Consult your local CENTRIA architectural representative for design assistance. Contact CENTRIA, Pittsburgh, PA, (800) , [email protected], for a list of offices. CENTRIA is a world leader in the manufacture of metal building products and systems for nonresidential walls and roofs. CENTRIA is also a world-class coil coater, coating a wide range of products for customers in numerous industries. CENTRIA products appear in the following MasterFormat sections: Section Metal Roof Panels (SRS3) Section Insulated Core Metal Roof Panels (Versapanel) Section Metal Wall Panels (Cascade Metal Panel System, Intercept V-Trac, Intercept Entyre, Paradigm, Concept Series, IW Series, Exposed Fastener Panels) Section Insulated-Core Metal Wall Panels (Formawall Dimension Series, Formawall Graphix Series, Versawall, Versapanel, Foamwall, VersaShield MW) Section Insulated Composite Backup Panel (MetalWrap) Section Composite Wall Panels (FormaBond) Specifier: This document is organized according to CSI MasterFormat. Edit section number and title as appropriate to the Project. Bold items require specifier selection. Convert bold to plain text and delete notes before publishing Exposed Fastener Series, Microline, and MetalWrap are trademarks of CENTRIA, INC. Page 1 of 18

2 Fluorofinish and MicroSeam are a registered trademarks of CENTRIA, Inc. Galvalume and Galvalume Plus are registered trademarks of BIEC International, Inc. Kynar 500 is a registered trademark of Arkema, Inc. Hylar 5000 is a registered trademark of Solvay S.A. MasterFormat is a trademark of the Construction Specifications Institute. This document is Copyright 2014 CENTRIA. All rights reserved. Page 2 of 18

3 SECTION METAL WALL PANELS PART 1 - GENERAL 1.1 SECTION INCLUDES A. Exposed fastener metal wall panels, [and liner panels] as part of the assembly described in Section RELATED REQUIREMENTS Specifier: Edit list below to correspond to Project. A. Division 01 Section "Sustainable Design Requirements" for related requirements. B. Division 07 Section "Sheet Metal Flashing and Trim" for sheet metal copings, flashings, reglets and roof drainage items. C. Division 07 Section "Joint Sealants" for field-applied joint sealants. 1.3 REFERENCES A. American Architectural Manufacturer's Association (AAMA): 1. AAMA Voluntary Specification for High Performance Organic Coatings on Coil Coated Architectural Aluminum Substrates. 2. AAMA Voluntary Specification for High Performance Organic Coatings on Coil Coated Architectural Hot Dipped Galvanized (HDG) and Zinc-Aluminum Coated Steel Substrates. B. American Society of Civil Engineers (ASCE): 1. ASCE 7 - Minimum Design Loads for Buildings and Other Structures. C. ASTM International (ASTM): 1. ASTM A 653/A 653M - Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc- Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process. 2. ASTM A 666 Standard specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar. 3. 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. 4. ASTM A 792/A 792M Standard specification for Steel Sheets, 55% Aluminum Zinc Alloy. Coated by hot-dip process. 5. ASTM B Specification for Aluminum and Aluminum Alloy Sheet and Plate. 6. ASTM C Specification for Installation of Steel Framing Members to Receive Screw Attached Gypsum Panel Products. Page 3 of 18

4 7. ASTM C Specification for Elastomeric Joint Sealants. 8. ASTM E 72 - Standard Test Methods of Conducting Strength Tests of Panels for Building Construction. 9. ASTM E Test Method for Determining the Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors under Specified Pressure Differences across the Specimen. 10. ASTM E Test Method for Water Penetration of Exterior Windows, Curtain Walls, and Doors by Uniform Static Air Pressure Difference. D. Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA): 1. Architectural Sheet Metal Manual. 1.4 PERFORMANCE REQUIREMENTS Specifier: Contractor. Add requirements to this Article if Project requirements include delegated design by A. General: 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. B. Air Infiltration: When installed over Insulated Composite Backup Panels or Metal Liner Panels, 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. C. Water Penetration, Static Pressure: When installed over Insulated Composite Backup Panels or Metal Liner Panels, 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 mm) test panel that includes side joints. D. Florida State Building Code Compliance: Provide wall panels that comply with the requirements for installation under Florida State Building Code aside of the High Velocity Hurricane Zone. E. Maximum allowable deflection limitation. Specifier: CENTRIA recommends minimum 22 gage metal wall panels for enhanced structural performance and optimum aesthetic appearance. CENTRIA exposed fastener metal wall panels, except Super Rib, and liner panels are also available in 24 gage. Specifier: Select one of the following three subparagraphs based upon the selected panel depth and configuration. 1. Single Skin Panels Less than 1-inch (25-mm) in Depth: Limited to L/90 deflection of panel perimeter normal to plane of wall. 2. Single Skin Panels greater than 1-inch (25-mm) in Depth: Limited to L/120 deflection of panel perimeter normal to plane of wall. 3. All Exposed Fastener Series panels specified with Liner Panels: Limited to L/180 deflection of panel perimeter normal to plane of wall. Page 4 of 18

5 F. Secondary Metal Framing: Design secondary metal framing for metal wall panel assembly according to AISI's "Standard for Cold-Formed Steel Framing - General Provisions." Specifier: For horizontal applications, and other applications where thermal movement is an issue, retain the requirements below. G. 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. Specifier: Retain paragraph below if foam plastic insulation is included within the wall system. H. Wall systems that incorporate foam plastic insulation must be tested by the foam plastic supplier in accordance with NFPA QUALITY ASSURANCE A. Manufacturer/Source: Provide metal wall panel and panel accessories from a single manufacturer. Specifier: Retain paragraph below if Owner allows substitutions but requires strict control over qualifying of substitutions. B. Manufacturer Qualifications: Approved manufacturer listed in this Section with minimum 10 years experience in manufacture of similar products in successful use in similar applications. 1. Approval of Comparable Products: Submit the following in accordance with project substitution requirements, within time allowed for substitution review: a. Product data, including certified independent test data indicating compliance with requirements. b. Samples of each component. c. Project references: Minimum of 5 installations not less than 5 years old, with Owner and Architect contact information. d. Sample warranty. 2. Substitutions following award of contract are not allowed except as stipulated in Division 01 General Requirements. 3. Approved manufacturers must meet separate requirements of Submittals Article. C. Wall Systems Installer Qualifications: Experienced Installer with minimum of 5 years experience with successfully completed projects of a similar nature and scope. 1.6 ADMINISTRATIVE REQUIREMENTS A. Preinstallation Meeting: Conduct preinstallation meeting at site attended by Owner, Architect, manufacturer's representative, and other trade contractors. 1. Coordinate building framing in relation to metal wall panel assembly. 2. Coordinate installation of building air and water barrier behind metal wall panel assembly. 3. Coordinate window, door and louver, and other openings and penetrations of metal wall panel assembly. Page 5 of 18

6 1.7 ACTION SUBMITTALS A. Product Data: Manufacturer s data sheets, for specified products. 1. Include data indicating compliance with performance requirements. B. Shop Drawings: Provide shop drawings prepared by manufacturer or manufacturer's authorized Installer. Include full elevations showing openings and penetrations. Include details of each condition of installation and attachment. Provide details at a minimum scale 1-1/2-inch per foot (1:8) of all required trim and extrusions needed for a complete installation. 1. Indicate points of supporting structure that must coordinate with metal wall panel assembly installation. C. Samples for Initial Selection: For each product specified. Provide representative color charts of manufacturer's full range of colors. D. Samples for Verification: Provide 12-inch (300 mm) section of panel(s) showing finishes. Provide 12-inch (300 mm) long pieces of trim pieces and other exposed components. 1.8 INFORMATIONAL SUBMITTALS A. Product Test Reports: Indicating compliance of products with requirements, from a qualified independent testing agency. Specifier: Retain paragraphs below when Project requirements include compliance with Federal Buy American provisions. CENTRIA Metal Wall Panels comply with requirement. B. Buy American Act Certification: Submit documentation certifying that products comply with provisions of the Buy American Act 41 U.S.C 10a 10d. Specifier: Retain below when authorities having jurisdiction require certification for high velocity hurricane zone. C. Dade County Approval, Dade County Notice of Acceptance (NOA). Style-Rib, MR3-36 & Super- Rib only in 20 gage minimum. D. State of Florida High Velocity Hurricane Zone, (HVHZ). Style-Rib only in 20 gage minimum. E. Qualification Information: For Installer firm. F. Manufacturer's warranty: Submit sample warranty. 1.9 CLOSEOUT SUBMITTALS A. Maintenance data DELIVERY, STORAGE, AND HANDLING A. Protect metal wall panel products during shipping, handling, and storage to prevent staining, denting, deterioration of components or other damage. Page 6 of 18

7 1. Deliver, unload, store, and erect metal wall panel products and accessory items without misshaping panels or exposing panels to surface damage from weather or construction operations WARRANTY Specifier: Warranty terms below are available from CENTRIA. Verify that other allowable manufacturers furnish warranty meeting requirements. A. Special Manufacturer s Warranty: On manufacturer s standard form, in which manufacturer agrees to repair or replace components of metal wall panel assemblies that fail in materials and workmanship within [two] years from date of Substantial Completion. Specifier: Consult CENTRIA representative to verify available finish warranty. B. Special Panel Finish Warranty: On manufacturer s standard form, in which manufacturer agrees to repair or replace metal wall panels that display evidence of deterioration of finish within [20] years from the date of substantial completion. PART 2 - PRODUCTS 2.1 SYSTEM DESCRIPTION Specifier: Retain one or more of six wall system descriptions below that correspond to Project Requirements; edit as required. System (A) below describes installation of metal wall panels over CENTRIA MetalWrap backup system. A. Metal Wall Panels over Insulated-Composite Backup Panel Wall System: Single-skin exposed fastener metal wall panels serving 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 Backup Panel 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. B. Metal Wall Panels and Metal Liner Panel Wall System: Single-skin exposed fastener metal wall panels applied as the exterior cladding over wall framing specified in [Division 05 Section "Cold-Formed Metal Framing" ] [Division 13 Section "Metal Building Systems" ]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. 1. Water-resistive barrier is required for Horizontal Liner applications and is under Division 07 Section "Weather Barriers." C. Metal Wall Panels over Multi-Component Framed Wall System: Single-skin exposed fastener 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 Page 7 of 18

8 in Division 07 Section "Thermal Insulation." Metal wall panel installation specified in this Section includes secondary metal subgirt framing for panel attachment. Specifier: Retain subparagraphs below. Product is not by CENTRIA. 1. Air, moisture, and water vapor control membrane is provided under Division 07 Section "Air Barriers." D. Metal Wall Panels over Outside-Insulated Framed Wall System: Single-skin exposed fastener 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 and] applied outboard of the sheathing specified in Division 07 Section "Thermal Insulation." Metal wall panel installation specified in this Section includes secondary metal subgirt framing for panel attachment. Specifier: Retain subparagraphs below. Product is not by CENTRIA. 1. Air, moisture, and water vapor control membrane is provided under Division 07 Section "Air Barriers." E. Metal Wall Panels over Masonry Wall System: Single-skin exposed fastener metal wall panels applied as exterior rainscreen cladding over a masonry wall [and rigid board insulation] 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. Specifier: Retain subparagraphs below for horizontal panels. Product is not by CENTRIA. 1. Air, moisture, and water vapor control membrane is provided under Division 07 Section "Air Barriers." F. Metal Wall Panels over Uninsulated Framed [Screen] Wall System: Single-skin exposed fastener metal wall panels applied as exterior barrier cladding over wall framing specified in [Division 05 Section "Cold-Formed Metal Framing" ] [Division 13 Section "Metal Building Systems" ] [and water-resistive barrier specified in Division 07 Section "Weather Barriers"]. Metal wall panel installation specified in this Section may include secondary metal subgirt framing for panel attachment. 2.2 MANUFACTURERS A. Basis of Design: CENTRIA, Exposed Fastener Series Metal Wall Panels. Provide basis of design product [, or comparable product approved by Architect prior to bid]. 1. CENTRIA Architectural Systems; Moon Township, PA Tel: (800) Tel: (412) Fax: (412) [email protected]. Web: Page 8 of 18

9 2.3 METAL WALL PANEL MATERIALS Specifier: Select metal wall panel face material from three paragraphs below. Aluminum-zinc alloycoated steel sheet, Galvalume, Galvalume Plus with a thin, clear acrylic topcoat, is also available and is recommended for uniform weathering when specified without an applied paint finish. A. 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 (Galvalume) Steel Sheet: ASTM A 792/A 792 M, Class AZ50 Grade 50 (Class AZM150, Grade 275), structural steel quality. Specifier: Select required metal face sheet thickness from options below. Specifier: CENTRIA recommends minimum 22 gage metal wall panels for enhanced structural performance and optimum aesthetic appearance. CENTRIA exposed fastener metal wall panels, except Super Rib, and liner panels are also available in 24 gage. 3. Face Sheet: Minimum [0.024 inch/24 gage (0.60 mm)] [0.030 inch/22 gage (0.76 mm)] [0.036 inch/20 gage (0.91 mm)] [0.047 inch/18 gage (1.19 mm)] nominal uncoated thickness. 4. Surface: [Smooth] [Non-Directional Embossed]. B. Aluminum Face Sheet: Smooth surface coil-coated, ASTM B 209, 3003-H14 or 5052-H32 alloy. Specifier: Select required metal face sheet thickness from options below. 1. Face Sheet: [0.032 inch (0.8 mm)] [0.040 inch (1.0 mm)] [0.050 inch (1.27 mm)] nominal thickness. 2. Surface: [Smooth] [Non-Directional Embossed]. C. Stainless-Steel Face Sheet: ASTM A 666, architectural grade alloy type as indicated. Specifier: Select required metal face sheet thickness from options below inch/24 gage (0.60 mm) thickness is available in CENTRIA CS-260/260E and CS 660/660E panels. 1. Face Sheet: [0.024 inch/24 gage (0.60 mm)] [0.030 inch/22 gage (0.76 mm)] [0.036 inch/20 gage (0.91 mm)] nominal thickness. Specifier: Type 316 alloy is recommended for marine and other corrosive environments. 2. Finish: [Type 304, #4 Brushed], [Type 316, #4 Brushed]. 2.4 EXPOSED FASTENER PROFILE METAL WALL PANELS Specifier: CENTRIA EXPOSED FASTENER metal wall panels are suitable for horizontal and vertical installation. Continuous shims provide a ventilated cavity and a drain plane behind panels when required. Standard lengths are 5 to 40 feet; custom length panels are available on special order. Page 9 of 18

10 Specify optional field-applied sealant in vertical panel side laps when added water resistance is required. CENTRIA recommends a complete water-resistant barrier behind horizontal panels. If using more than one metal wall panel, retain the drawing designation below for each panel. If metal types, thicknesses, surfaces, or finish systems differ, add notes below to indicate the metal type, thickness, surface, and finish for each panel on project. A. Metal Wall Panels, General: Factory-formed, Exposed fastener panels with interconnecting side joints, fastened to supports with exposed fasteners, with field-applied sealants in side laps when required to meet performance requirements. B. Ribbed profile with lap joint MWP# : 1. Basis of Design Product: CENTRIA, BR Panel Coverage: 36 inches (914 mm). 3. Panel Height: 1.50 inches (38 mm). 4. Rib Spacing: 5 at 7.20 inches (183 mm) o.c. C. Ribbed profile with lap joint MWP# : 1. Basis of Design Product: CENTRIA, MR Panel Coverage: 36 inches (914 mm). 3. Panel Height: 3.0 inches (76 mm). 4. Rib Spacing: 3 at 12 inches (305 mm) o.c. D. Ribbed profile with raised pans with lap joint MWP# : 1. Basis of Design Product: CENTRIA, TR Panel Coverage: 36 inches (914 mm). 3. Panel Height: 1.50 inches (38 mm). 4. Rib Spacing: 4 at 9 inches (229 mm) o.c. E. Symmetrical corrugated profile with lap joint. MWP# : 1. Basis of Design Product: CENTRIA, Econolap 3/4 inch. 2. Panel Coverage: inches (880 mm). 3. Panel Height: 0.75 inches (19 mm). 4. Corrugation Spacing: 2.66 inches (68 mm) o.c. F. Symmetrical corrugated profile with lap joint MWP# : 1. Basis of Design Product: CENTRIA, Econolap 1/2 inch. 2. Panel Coverage: inches (948 mm). 3. Panel Height: 0.50 inches (13 mm). 4. Corrugation Spacing: 2.66 inches (68 mm) o.c. G. Symmetrical deep rib profile with lap joint MWP# : 1. Basis of Design Product: CENTRIA, Super-Rib. 2. Panel Coverage: 24 inches (610 mm). 3. Panel Height: 4 inches (102 mm). 4. Rib Spacing: 12 inches (305 mm) o.c. Page 10 of 18

11 H. Symmetrical rib profile with lap joint MWP# : 1. Basis of Design Product: CENTRIA, Style-Rib. 2. Panel Coverage: 36 inches (914 mm). 3. Panel Depth: 1.50 inches (38 mm). 4. Rib Spacing: 5 at 7.2 inches (183 mm) o.c. Specifier: Select metallic-coated steel face sheet or aluminum face sheet finish system from options below. AAMA 620 is aluminum sheet finish standard; AAMA 621 is metallic-coated steel sheet finish standard. Delete all finish options if specifying stainless steel face sheet. A. 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 [620] [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 [620] [621]. a. Basis of Design: CENTRIA Duragard. 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 [620] [621]. a. Basis of Design: CENTRIA Duragard 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 [620] [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 [620] [621]. a. Basis of Design: CENTRIA Sundance AM. Specifier: The three CENTRIA Versacor systems below are recommended for corrosive and abusive environments. Select system and one of three options for panel interior finish based on exposure and environmental conditions. Consult CENTRIA representative for recommended finish system. 6. Fluoropolymer Two-Coat Corrosion and Abrasion Resistant System: 2.0 mil barrier coat primer with 0.8 mil 70 percent PVDF fluoropolymer color coat. a. Basis of Design: CENTRIA Versacor Elite PF. 7. Fluoropolymer Two-Coat Corrosion and Abrasion Resistant System: 2.0 mil barrier coat primer with 0.8 mil 70 percent PVDF fluoropolymer color coat that includes mica flakes that provides a pearlescent appearance. Page 11 of 18

12 B. Color: a. Basis of Design: CENTRIA Versacor Elite MX. 8. Fluoropolymer Two-Coat Corrosion and Abrasion Resistant System: 2.0 mil barrier coat primer with 0.8 mil 70 percent PVDF fluoropolymer color coat that includes aluminum metal flakes, with a 0.5 mil PVDF clear topcoat. b. Basis of Design: CENTRIA Versacor Elite AM. 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. 10. Fluoropolymer Three Coat System: 0.65 mil color base coat and Primer with a 0.05 mil PVDF ink coat and a 0.45 nominal PVDF fluoropolymer clear coat. a. Basis of Design: CENTRIA Allusion. 11. Fluoropolymer Two Coat System: 0.2 mil primer with a 0.8 mil PVDF matte, low gloss color coat with fine aggregate finish. a. Basis of Design: CENTRIA Allura. Specifier: Retain one or both subparagraphs below has required for Project. 1. Exterior Surface: [As indicated] [As selected by Architect from manufacturer's standard colors] [Match Architect's custom color]. 2. Interior Surface: [Manufacturer's standard primer color] [As indicated] [As selected by Architect from manufacturer's standard colors] [Match Architect's custom color]. 2.5 LINER PANELS Specifier: Retain this Article if liner panel is required on interior of assemblies. Standard lengths are 5 to 30 feet; custom length panels are available on special order. Deeper assemblies may be used in conjunction with thicker insulation. A. Metal Liner Panels, General: Factory-formed panels with interconnecting side joints, fastened to supports with exposed fasteners. 1. [Zinc-Coated (Galvanized) steel sheet] [Aluminum-zinc alloy-coated (Galvalume) steel sheet]. 2. Face Sheet: Minimum [0.024 inch/24 gage (0.60 mm)] [0.030 inch/22 gage (0.76 mm)] [0.036 inch/20 gage (0.91 mm)] [0.047 inch/18 gage (1.19 mm)] nominal uncoated thickness. 3. Panel Sheet: [Solid] [Perforated, with 10 percent free area]. 4. Surface: [Smooth] [Non-Directional Embossed]. B. Metal liner panel MLP# : 1. Basis of Design Product: CENTRIA, L2. Page 12 of 18

13 2. Panel Coverage: 24 inches (610 mm). 3. Panel Height: inches (35 mm). 4. Stiffening Beads: Two. C. Metal liner panel MLP# : 1. Basis of Design Product: CENTRIA, L 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, L 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 Duragard. 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 Duragard 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. Specifier: The three CENTRIA Versacor systems below are recommended for corrosive and abusive environments. Select system and one of three options for panel interior finish based on exposure and environmental conditions. Consult CENTRIA representative for recommended finish system. 6. Fluoropolymer Two-Coat Corrosion and Abrasion Resistant System: 2.0 mil barrier coat primer with 0.8 mil 70 percent PVDF fluoropolymer color coat. Page 13 of 18

14 F. Color: b. Basis of Design: CENTRIA Versacor Elite PF. 7. Fluoropolymer Two-Coat Corrosion and Abrasion Resistant System: 2.0 mil barrier coat primer with 0.8 mil 70 percent PVDF fluoropolymer color coat that includes mica flakes that provides a pearlescent appearance. c. Basis of Design: CENTRIA Versacor Elite MX. 8. Fluoropolymer Two-Coat Corrosion and Abrasion Resistant System: 2.0 mil barrier coat primer with 0.8 mil 70 percent PVDF fluoropolymer color coat that includes aluminum metal flakes, with a 0.5 mil PVDF clear topcoat. d. Basis of Design: CENTRIA Versacor Elite AM. 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. b. Basis of Design: CENTRIA KolorShift. 10. Fluoropolymer Three Coat System: 0.65 mil color base coat and Primer with a 0.05 mil PVDF ink coat and a 0.45 nominal PVDF fluoropolymer clear coat. a. Basis of Design: CENTRIA Allusion. 11. Fluoropolymer Two Coat System: 0.2 mil primer with a 0.8 mil PVDF matte, low gloss color coat with fine aggregate finish. a. Basis of Design: CENTRIA Allura. Specifier: Retain one or both subparagraphs below has required for Project. 1. Interior Exposed Surface: [As indicated] [As selected by Architect from manufacturer's standard colors] [Match Architect's custom color]. 2. Concealed Surface: Manufacturer's standard primer color. 2.6 METAL WALL PANEL ACCESSORIES Specifier: Retain paragraph below when metal wall panels are used in conjunction with CENTRIA MetalWrap metal wall panel backup system, which provides a one-step insulated substrate incorporating watertight joints and air/vapor control. A. Metal Wall Panel Backup System: Refer to Division 07 Section "Insulated-Composite Backup Panel System." 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. Fabricate accessories in accordance with SMACNA Manual. Provide manufacturer's factory-formed clips, shims, flashings, gaskets, lap strips, closure strips, and caps for a complete installation as required for the following: Page 14 of 18

15 Specifier: Select and edit appropriate installation description below. 1. Single-skin application over metal framing [and secondary framing] with liner panels. 2. Single-skin application over insulated, sheathed frame wall with air and water resistant barrier. 3. Single-skin application over furred masonry backup with air and water resistant barrier. 4. Multi-component wall system, consisting of metal wall panel application over insulated core metal wall panel backup system. Specifier: CENTRIA offers Microline Extrusions, an extensive line of extruded trims that integrate both visually and mechanically with CENTRIA Exposed Fastener panels that are available for horizontal applications of CENTRIA Style Rib, BR5-36, Econolap ¾, and TR4-36 panels. C. Extruded Trim: Manufacturer's complementary aluminum extrusions for head, jamb, sill, base, flush, reveal, inside and outside corner, end wall, and expansion joint details. Finish to match metal wall panels. 1. Basis of Design: CENTRIA, Microline Extrusions. Specifier: CENTRIA offers MicroSeam Corners, a popular design feature that accentuates horizontal lines by eliminating trim at corners. MicroSeam corners are not available for Econolap ½. 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 Division 07 Section "Joint Sealants." G. Flashing Tape: 4-inch wide self-adhering butyl flashing tape. H. Fasteners: Self-tapping screws, bolts, nuts, and other acceptable fasteners recommended by panel manufacturer. All exposed fasteners must be stainless steel with heads matching color of metal wall panels by means of factory-applied coating. Specifier: CENTRIA offers Profile Louvers that are configured to match horizontally-oriented Exposed Fastener Series panel profiles. Profile matching louvers are available for BR5-36, MR3-36, Style-Rib and Super-Rib panels. 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. Provide manufacturer's standard louver blade clips matching panel color. Page 15 of 18

16 Specifier: Select options and edit below as required for Project. Coordinate with HVAC engineer. Indicate size on Drawings. B. Horizontal Fixed Louver: 1. Louver Size: As indicated on Drawings. 2. Louver Depth: Various options depending on free area requirements 3. Free Area: Depending on profile and depth 4. Air Performance: Not exceeding (0.10-inch wg (25-Pa)) static pressure drop at 600-fpm (3.0-m/s) free area velocity. C. Base Metal and Finish: 1. Match metal wall panel base metal and finish. Specifier: Retain paragraph below if required, and select screen type. Bird screen is typically required; insect screen requires maintenance to ensure air flow. D. Louver Screens: Mounted in removable aluminum frame. 1. Bird Screen: 1/2-inch (12 mm) mesh aluminum, crimped. 2. Insect Screen: mesh aluminum, crimped. 2.8 SECONDARY METAL FRAMING A. Miscellaneous Framing Components, General: Cold-formed metallic-coated steel sheet, ASTM A 653/A 653M, G90 (Z180). 1. Hat Channels: 0.06 inch/16 ga. (1.52 mm) minimum nominal thickness. 2. Sill Channels: 0.06 inch/16 ga. (1.52 mm) minimum nominal thickness. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine metal 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 deviations acceptable: a. 1/4-inch in 20 feet (6.4 mm in 6 m) vertically or horizontally from face plane of framing. b. 1/2-inch (12.7 mm) across building elevation. c. 1/8-inch in 5 feet (3.2 mm in 1.5 m). Specifier: Retain one, two, or three following paragraphs as appropriate to Project. 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 Page 16 of 18

17 acceptable framing members at recommended spacing to match installation requirements of metal wall panels. D. Openings: Verify that windows, doors, louvers and other penetrations match layout on shop drawings. E. Air/Moisture Barriers: Confirm that work has been completed, inspected, and tested as required. F. Advise G.C, in writing, of out-of-tolerance work and other deficient conditions prior to proceeding with metal wall panel system installation. G. Correct out of tolerance work and other deficient conditions prior to panel installation. 3.2 SECONDARY FRAMING INSTALLATION Specifier: Retain article only if secondary framing is part of work of this Section. A. Secondary Metal 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. B. Attach panels to metal framing using recommended 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. Provide weatherproof escutcheons for pipe and conduit penetrating exterior walls. 3. 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 ACCESSORY INSTALLATION A. General: Install metal wall panel accessories with positive anchorage to building. Coordinate installation with flashings and other components. 1. Install related flashings and sheet metal trim per requirements of Division 07 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. Set units true to line and level as indicated. Page 17 of 18

18 3.5 FIELD QUALITY CONTROL Specifier: Retain paragraph below when scope and complexity of metal wall panel installation justifies inspection expense. 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. 3.6 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 Page 18 of 18