CENTRIA Profile Series Exposed Fastener Metal Roof Panels

CENTRIA Profile Series Exposed Fastener Metal Roof Panels CENTRIA Profile Series Exposed Fastener Metal Roof Panels are a versatile design choice for both new and retrofit projects. Panels are manufactured in many different coil coating systems and painted with a wide variety of manufacturer's standard colors plus an unlimited choice of custom colors. Basic coil materials are galvanized steel, Galvalume and Galvalume Plus coated steel, aluminum, and a distinctive moderately reflective stainless steel. CENTRIA Profile Series Metal Roof Panels are available with a flat or embossed exterior surface. Accessories are available for most applications. CENTRIA Exposed Fastener Series Metal Roof Panels are manufactured and coated with CENTRIA's Kynar 500 or Hylar 5000 -based fluoropolymer or Versacor Ultra corrosion- and abrasion- resistant finishes. Highly UV resistant and durable in the face of chemical and air borne pollution, salt spray and winddriven sand, CENTRIA coatings set the standard for the industry. CENTRIA coatings are available in over 60 standard colors and additional custom colors. Consult your local CENTRIA architectural representative for design assistance. Contact CENTRIA, Pittsburgh, PA, (800)759-7474, Email: info@centria.com, www.centria.com 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 07 41 13 Metal Roof Panels (SRS2, SRS3) Section 07 41 16 Insulated Core Metal Roof Panels (Versapanel) Section 07 42 13 Metal Wall Panels (Concept Series, IW Series, Exposed Fastener Panels) Section 07 42 16 Insulated-Core Metal Wall Panels (Formawall Dimension Series, Formawall Graphics Series, Versawall, Versapanel) Section 07 42 17 Insulated Composite Backup Panel (MetalWrap) Section 07 42 43 Composite Wall Panels (FormaBond) Specifier: This document is organized according to CSI MasterFormat 2004 and SectionFormat 2008. 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. This document is compatible with certain MasterSpec and SpecText editing tools. Fluorofinish and MetalWrap 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 and SectionFormat are trademarks of the Construction Specifications Institute. MasterSpec is a registered trademark of the American Institute of Architects. SpecText is a registered trademark of the Construction Sciences Research Foundation. This document is Copyright 2009 CENTRIA. All rights reserved. Page 1 of 15

SECTION 07 41 13 METAL ROOF PANELS PART 1 - GENERAL 1.1 SECTION INCLUDES A. Exposed fastener metal roof panels[ and liner panels]. 1.2 RELATED REQUIREMENTS Specifier: Edit list below to correspond to Project. A. Division 01 Section "Sustainable Design Requirements" for related LEED general requirements. B. Division 05 Section "Cold-Formed Metal Framing" for cold-formed metal framing supporting metal roof panel. C. Division 05 Section "Steel Decking" for steel roof deck supporting metal roof panels. D. Division 07 Section "Thermal Insulation" for field installed thermal insulation. E. Division 07 Section "Metal Wall Panels" for factory-formed metal wall and soffit panels. F. Division 07 Section "Sheet Metal Flashing and Trim" for sheet metal copings, flashings, reglets and roof drainage items not specified in this Section. G. Division 07 Section "Manufactured Roof Specialties" for manufactured copings, reglets, and roof drainage items. H. Division 07 Section "Roof Accessories" for roof hatches, smoke vents, equipment curbs, and equipment supports. I. Division 07 Section "Joint Sealants" for field-applied joint sealants. 1.3 DEFINITIONS A. Metal Roof Panel System: Metal roof panels with exposed fastener attachment, [supplemental framing members required for complete metal framing attachment system], and accessories necessary for a complete watertight installation. Specifier: Retain definition in paragraph below for Projects incorporating innovative sustainability goals. C2C certification described below is a comprehensive sustainability certification that transcends LEED requirements to address life cycle analysis of entire production cycle of building products. CENTRIA and a number of leading product manufacturers have aligned their manufacturing and distribution practices with C2C core principles. B. Cradle to Cradle Certification: The Cradle to Cradle Certification process, administered by McDonough Braungart Design Chemistry (MBDC), www.c2ccertified.com, that evaluates materials and product ingredients and the complete formulation for human and environmental Page 2 of 15

health impacts throughout its lifecycle as well as its potential for being truly recycled or safely composted. 1.4 REFERENCES A. American Architectural Manufacturer's Association (AAMA): 1. AAMA 620 - Voluntary Specification for High Performance Organic Coatings on Coil Coated Architectural Aluminum Substrates. 2. AAMA 621 - Voluntary Specification for High Performance Organic Coatings on Coil Coated Architectural Hot Dipped Galvanized (HDG) and Zinc-Aluminum Coated Steel Substrates. B. American Iron and Steel Institute (AISI): 1. Specification for the Design of Cold-Formed Steel Structural Members. C. American Society of Civil Engineers (ASCE): 1. ASCE 7 - Minimum Design Loads for Buildings and Other Structures. D. 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 666 Standard Specification for Annealed or Cold Worked Austenitic Stainless Steel Sheet, Strip, Plate and flat bar. 3. ASTM A 755 - 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 Specification for Steel Sheet, 55 percent Aluminum-Zinc Alloy Coated by the Hot Dip Process. 5. ASTM B 209 - Specification for Aluminum and Aluminum Alloy Sheet and Plate. 6. ASTM D 2244 - Test Method for Calculation of Color Differences from Instrumentally Measured Color Coordinates. 7. ASTM D 4214 - Test Methods for Evaluating Degree of Chalking of Exterior Paint Films. 8. ASTM E 119 - Test Methods for Fire Tests of Building Construction and Materials. 9. ASTM E 1980 - Practice for Calculating Solar Reflectance Index of Horizontal and Low- Sloped Opaque Surfaces. E. Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA): 1. Architectural Sheet Metal Manual. F. Underwriters Laboratories, Inc. (UL): 1. UL 580 Tests for Uplift Resistance of Roof Assemblies. 2. UL Fire Resistance Directory. 3. UL Roofing Materials Directory. G. US Environmental Protection Agency: 1. Energy Star Reflective Roof Products. H. US Green Building Council (USGBC): Page 3 of 15

1. Leadership in Energy and Environmental Design (LEED). 1.5 PERFORMANCE REQUIREMENTS Specifier: Add requirements to this Article if Project requirements include delegated design by Contractor. A. General: Provide metal roof panel system meeting performance requirements as determined by application of specified tests by a qualified testing agency on manufacturer's standard assemblies. Specifier: Retain Air Infiltration and Water Penetration paragraphs below for those CENTRIA products tested to the referenced standards. Also retain if assembly utilizes CENTRIA metal liner panels to serve as the air and water barrier. Verify with CENTRIA representative. B. Air Infiltration: Maximum 0.06 cfm/sq. ft. (0.3 L/s per sq. m) per ASTM E 283 at a static-airpressure 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: 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. Specifier: UL 580 Wind Uplift Resistance performance below applies to some but not all CENTRIA Exposed Fastener Profile Series panels. Verify performance with CENTRIA representative. D. Wind Uplift Resistance: [UL 580 wind uplift rating UL 90] [Per ASCE/SEI 7 and uplift design pressures indicated on Drawings]. E. 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 roof system. F. Roof systems that incorporate foam plastic insulation must be tested by the foam plastic supplier in accordance with NFPA-285. Specifier: Retain one or more energy performance subparagraphs below based on project requirements. Retain Solar Reflectance Index for LEED projects. Retain Energy Star reference for projects seeking Energy Star rating; products must be listed on EPA Energy Star website. Retain CEC compliance for projects required to comply with CEC requirements. Verify values with manufacturer for selected panel finishes. G. Energy Performance: 1. Solar Reflectance Index: Minimum 78 for roof slopes of 2:12 or less and 29 for roof slopes greater than 2:12 per ASTM E 1980. 2. Energy Star Qualified: Listed on USDoE ENERGY STAR Roof Products Qualified Product List www.energystar.com. 3. California Energy Commission Compliance: Minimum initial solar reflectance of [0.70] and emissivity of [0.75] per CRRC-1, www.coolroofs.org. Page 4 of 15

1.6 QUALITY ASSURANCE A. Manufacturer/Source: Provide metal roof panels and panel accessories from a single manufacturer. Specifier: Retain and edit subparagraph below if work of this Section is required to be supplied by same manufacturer of a related product in another section. 1. Provide products by same manufacturer as manufacturer of products specified in Division [00] Section "[Insert Division number and Section name]." Specifier: Retain paragraph below if Owner allows substitutions but requires strict control over qualifying of substitutions. A. Manufacturer Qualifications: Approved manufacturer listed in this Section with minimum 5 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. Sample submittal from similar project. d. Project references: Minimum of 5 installations not less than 5 years old, with Owner and Architect contact information. e. 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. B. Installer Qualifications: Experienced Installer with minimum of 5 years experience with successfully completed projects of a similar nature and scope. Specifier: Retain and edit subparagraph below if work of this Section is required to be installed by same Installer of a related product in another section. 1. Provide work installed by same Installer as Installer of products specified in Division [00] Section "[Insert Division number and Section name]." C. Fire Performance Characteristics: Provide metal roof panel system with the following fire-test characteristics. 1. Surface-Burning Characteristics: Provide metal roof panel system with the following characteristics when tested per ASTM E 84. a. Flame spread index: 25 or less. b. Smoke developed index: 450 or less. Specifier: Retain below when metal roof panels are part of a fire-resistance-rated roof assembly. 2. Fire Resistance Ratings: Provide metal roof panel system tested as part of a roof assembly listed in UL Fire Resistance Directory. Page 5 of 15

1.7 ADMINISTRATIVE REQUIREMENTS A. Preinstallation Meeting: Prior to erection of metal roof panels, conduct preinstallation meeting at site attended by Owner, Architect, manufacturer's technical representative, inspection agency and related trade contractors. 1. Coordinate building framing in relation to metal roof panels. 2. Coordinate openings and penetrations of metal roof panels. 3. Coordinate work of Division 07 Sections "Roof Specialties" and "Roof Accessories" and roof openings and penetrations and manufacturer's accessories with installation of metal roof panels. 1.8 ACTION SUBMITTALS A. Product Data: Manufacturer s data sheets, for specified products. 1. Include data indicating compliance with performance requirements. Specifier: Retain and edit below to comply with Project requirements for LEED or other sustainable design requirements. B. LEED Submittals: 1. Credit SS 7.2: Product data indicating compliance with solar reflectance index requirement. 2. Credit MR 4: Product data indicating the following: a. Percentages by weight of post-consumer and pre-consumer recycled content. b. Total weight of products provided. C. Shop Drawings: Show layouts of metal roof panels. Include details of each condition of installation, panel profiles, and attachment to building. Provide details at a minimum scale 1-1/2-inch per foot of edge conditions, joints, fastener and sealant placement, flashings, penetrations, and special details. Make distinctions between factory and field assembled work. 1. Include data indicating compliance with performance requirements. 2. Indicate points of supporting structure that must coordinate with metal roof panel system installation. 3. Include data indicating compliance with performance requirements and requirements of local authorities having jurisdiction. D. Samples for Initial Selection: For each product specified including sealants and gaskets. Provide representative color charts of manufacturer's full range of colors. E. Samples for Verification: Provide 12-inch (305 mm) long section of metal roof panel showing finishes, vertical joint return, and anchoring details. Provide 12-inch (305 mm) long pieces of trim. 1.9 INFORMATIONAL SUBMITTALS A. Product Test Reports: Indicating compliance of products with requirements, from a qualified independent testing agency, when requested by Architect. Page 6 of 15

B. 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. 1. Protective Coating contains no Polyvinyl Chloride. 2. Minimum Nutrient Utilization Score as defined by MBDC: 50 3. Minimum steel recycled content: 25 percent. 4. Certified and Documented energy used to manufacture panels on a square foot basis. 5. Water Stewardship Guidelines: Singed by company CEO. Specifier: Retain paragraphs below when Project requirements include compliance with Federal Buy American provisions. CENTRIA SRS2 Standing Seam Metal Roof Systems complies with requirement. 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. Qualification Information: For Installer firm and Installer s field supervisor. E. Manufacturer's warranty: Submit sample warranty. 1.10 CLOSEOUT SUBMITTALS A. Maintenance data. 1.11 DELIVERY, STORAGE, AND HANDLING A. Protect products of metal roof panels during shipping, handling, and storage to prevent staining, denting, deterioration of components or other damage. Protect panels and trim bundles during shipping with water resistant paper. Protect painted surfaces with a strippable protective covering before shipping. 1. Deliver, unload, store, and erect metal roof panels and accessory items without misshaping panels or exposing panels to surface damage from weather or construction operations. 2. Store in accordance with Manufacturer's written instruction. Provide wood collars for stacking and handling in the field. 1.12 WARRANTY A. Special Manufacturer s Warranty: On Manufacturer s standard form, in which Manufacturer agrees to repair or replace components of metal roof panel installation 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 roof panels that evidence deterioration of factory-applied finish within [20] years from date of Substantial Completion, including: 1. Color fading in excess of 5 Hunter units per ASTM D 2244. 2. Chalking in excess of No. 8 rating per ASTM D 4214. 3. Failure of adhesion, peeling, checking, or cracking. Page 7 of 15

PART 2 - PRODUCTS 2.1 MANUFACTURERS A. Basis of Design: CENTRIA, Profile Series Exposed Fastener Metal Roof Panels. Provide basis of design product[, or comparable product approved by Architect prior to bid]. 1. CENTRIA Architectural Systems; Moon Township, PA 15108-2944. Tel: (800)759-7474. Tel: (412)299-8000. Fax: (412)299-8317. Email: info@centria.com. Web: www.centria.com. 2.2 METAL ROOF PANEL MATERIALS A. Metallic-Coated Steel Face Sheet: Coil-coated, ASTM A 755/A 755M. Specifier: Select metal roof 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. Galvalume substrates are eligible for extended warranty from CENTRIA. 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. Specifier: Select required metal face sheet thickness from options below. CENTRIA recommends the use of minimum 22 gage metal roof panels to achieve enhanced structural performance and optimum aesthetic appearance. CENTRIA exposed fastener metal roof panels, except for Super Rib, are also available in 24 gage. Aluminum-zinc alloy-coated steel sheet (Galvalume) is available for 22 and 24 gauge sheet. 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 B209, 3003-H14 or 5052-H32 alloy. Specifier: Select required metal face sheet thickness from options below. MR3 and Super-Rib panels are available in.040 and.050 inch only. Econolap 1/2 and 3/4 inch panels are available in.032 and.040 inch only. 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. MR3-36 and Super-Rib panels are available in.030 and.036 inch only. Page 8 of 15

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]. 2.3 EXPOSED FASTENER METAL ROOF PANELS If using more than one metal roof 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 Roof 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, BR5-36. 2. 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, MR3-36. 2. 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, TR4-36. 2. 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: 34.66 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: 37.33 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# : Page 9 of 15

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. 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. 2.4 METAL ROOF PANEL FINISHES 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 article if retaining stainless steel material above. For projects with sustainable design requirements, verify with manufacturer that selected finish and color meet SRI requirements in Part 1. 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 Duraguard. 3. Fluoropolymer Three-Coat System: 0.8 mil primer, 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 Duraguard Plus. 4. 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] [621]. a. Basis of Design: CENTRIA Sundance Mica. 5. Fluoropolymer Three-Coat Metallic System: 0.2 mil primer, 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. Page 10 of 15

6. Fluoropolymer Two-Coat Corrosion and Abrasion Resistant System: 3.0 mil primer with 0.8 mil 70 percent PVDF fluoropolymer color coat a. Basis of Design: CENTRIA Versacor Ultra PF. 7. Urethane Two-Coat Corrosion and Abrasion Resistant System: 3.0 mil barrier coat primer with 1.5 mil urethane color coat. a. 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. Basis of Design: CENTRIA Versacor Ultra HF. Specifier: Retain paragraph below along with selected finish system above, and edit as required. B. Color: 9. Interior Finish System: [Manufacturer's standard] [Match exterior panel finish system] [Specifier: Insert name of interior finish system]. Specifier: Retain one or both subparagraphs below as 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 METAL LINER PANELS Specifier: Retain this Article if liner panel is required on interior of framing assembly. Standard lengths are 5 to 30 feet; custom length panels are available on special order. Deeper liner panels 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 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. 2. Panel Coverage: 24 inches (610 mm). 3. Panel Height: 1.375 inches (35 mm). 4. Stiffening Beads: Two. C. Metal liner panel MLP# : Page 11 of 15

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. 2.6 METAL LINER PANEL FINISHES 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 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: 0.2-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: 3.0 mil epoxymodified primer with 0.8 mil 70 percent PVDF fluoropolymer color coat a. Interior Exposed Finish: [3.0 mil primer and wash coat topcoat] [3.0 mil primer and polyester topcoat] [3.0 mil primer and urethane topcoat]. b. Basis of Design: CENTRIA Versacor Ultra PF. Page 12 of 15

B. Color: 7. Urethane Two-Coat Corrosion and Abrasion Resistant System: 3.0 mil primer with 1.5 mil urethane color coat. a. Interior Exposed Finish: [3.0 mil primer and wash coat topcoat] [3.0 mil primer and polyester topcoat] [3.0 mil primer and urethane topcoat]. b. 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 Exposed Finish: [3.0 mil primer and wash coat topcoat] [3.0 mil primer and polyester topcoat] [3.0 mil primer and urethane topcoat]. b. Basis of Design: CENTRIA Versacor Ultra HF. 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. 2.7 METAL ROOF PANEL ACCESSORIES A. Provide complete metal roof panel assembly incorporating trim, copings, fasciae, soffits, downspouts, insulation spacers, closures, and miscellaneous flashings. Provide required fasteners, gaskets, closure strips, and sealants. Fabricate and install accessories in accordance with SMACNA Manual. 1. Steel Roof Panel Systems: Comply with ASTM E 1514. 2. Aluminum Roof Panels Systems: Comply with ASTM E 1637 and AA "Specification for Aluminum Structures." 3. Flashing and Trim: Match material, thickness, and finish of metal roof panels. B. Panel Fasteners: Self-tapping screws, bolts, nuts, and other acceptable fasteners recommended by roof panel manufacturer. Provide corrosion-resistant fasteners with heads matching color of metal panels by means of factory-applied coating. 1. Exposed Screws: Manufacturer's recommended stainless steel screws with bonded neoprene and stainless steel washers, coated to match panel color. 2. Concealed Screws: Manufacturer's recommended corrosion resistant carbon steel with corrosion resistant coating. C. Panel Sealants: 1. Field Applied Unexposed Sealant: Side Laps, end laps, and flashing details: Gun grade, nonskinning, butyl elastomer or polymeric non-skinning butyl tape. 2. Exposed Sealant: ASTM C 920; elastomeric polyurethane, polysulfide, or silicone sealant; of type, grade, class, and use classifications required to seal joints in metal roof panels and remain weathertight; as recommended by metal roof panel manufacturer colored to match panel color. D. Closures: Page 13 of 15

1. Metal: Matching metal roof panel material, thickness, and finish, precut to match panel profile. 2. Foam: Precut to match panel profile. E. Pipe Flashings: Molded EPDM, with metal collar. 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: 0.053 inch/16 ga. (1.34 mm) minimum. 2. Sill Channels: 0.053 inch/16 ga. (1.34 mm) minimum. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine metal roof panel installation substrate with Installer present. Inspect for erection tolerances and other conditions that would adversely affect installation of metal roof panels. Do not install metal roof panels until substrate meets requirements. 1. Inspect framing that will support metal roof panel system 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 roof panels. 2. Panel Support Tolerances: Install metal roof panels on substrate within tolerances acceptable to metal roof panel system manufacturer: 3.2 INSTALLATION a. Maximum out of plane deviation 1/4 inch in 20 feet (6 mm in 6.1 m). b. Maximum deviation 1/2 inch (12.7 mm) over entire roof. A. General: Install metal roof panel system in accordance with approved shop drawings and manufacturer's recommendations. Install metal roof panels in orientation, sizes, and locations indicated. Install metal roof panels in one piece lengths from the ridge to eave unless otherwise indicated on approved shop drawings. Anchor panels and other components securely in place. Provide for thermal and structural movement. B. Attach panels to metal framing using recommended screws, fasteners, sealants, and adhesives indicated on approved shop drawings. 1. Fasten metal roof panels to supports with exposed fasteners at location, spacing recommended by manufacturer, and with fasteners recommended by manufacturer. Anchor to supports with self-tapping fasteners approved by manufacturer. 2. Provide weatherproof escutcheons for pipe and conduit penetrating roof. 3. Dissimilar Materials: Where elements of metal roof panels installation will come into contact with dissimilar materials, treat faces and edges in contact with dissimilar materials as recommended by manufacturer. Page 14 of 15

3.3 ACCESSORY INSTALLATION A. General: Install metal roof panel accessories with positive anchorage to building and weather tight mounting and provide for thermal expansion. 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 roof panel assembly, including trim, copings, flashings, sealants, gaskets, fillers, closure strips, and similar items. 3. Comply with performance requirements, requirements of authorities having jurisdiction, and manufacturer's written installation instructions. 4. Set units true to line and level as indicated. Install work with laps, joints, and seams that will be permanently watertight and weather resistant. 3.4 CLEANING AND PROTECTION A. Remove temporary protective films when directed by Architect. Remove metal filings and residue. Clean finished surfaces as recommended by metal roof panel manufacturer. B. Replace damaged panels and accessories that cannot be repaired to the satisfaction of the Architect. END OF SECTION Page 15 of 15