CENTRIA MetalWrap™ Insulated Composite Backup Panel System

CENTRIA MetalWrapInsulated Composite Backup Panel Systemis designed to be used withuninsulatedCENTRIA metal wall panel claddingto create a complete wall system solution.The unique composite design of MetalWrap provides an airbarrier, moisturebarrier,and thermal insulation with total wall values up to R-21 in a single, easy-to-install component that serves as a substrate for the application of a wide variety of CENTRIA metal panels.MetalWrapeliminates the need for separate batt or board insulation, exterior gypsum board sheathing, air barriers, vapor retarders, and building wraps, while providing better thermal efficiency and moisture control for exterior metal-clad walls.

MetalWrap is designed for use with vertical or horizontal CENTRIA exterior metal panels, including Profile Products and FormaBond.MetalWrap was developed using ATMP® - CENTRIA's Advanced Thermal and Moisture Protection building envelope science; it maximizes a metal wall system's ability to effectively control moisture without sacrificing thermal efficiency.Metal panel wall systems utilizing MetalWrap with steel stud construction and interior gypsum board finish are available with overall wall thermal resistance of R14 (for 2-inch thick MetalWrap) and R-21 (for 3-inch thick MetalWrap).

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, providing a wide range of coated products for customers in numerous industries. Consult your local CENTRIA architectural representative for design assistance. Contact CENTRIA, Pittsburgh, PA, (800)759-7474, Email:, for a list of local offices.

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, EcoScreen Perforated Screenwall)

●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™ 2012 and SectionFormat™ 2010.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 commercial specification editing software. Several CENTRIA specifications sections are also available in non-proprietary Federal SpecsIntact formats.

MetalWrap™ is a trademark of CENTRIA.ATMP® is a registered trademark of CENTRIA.

MasterFormat™ and SectionFormat™ are trademarks of the Construction Specifications Institute.

This document is Copyright© 2013 CENTRIA. All rights reserved.

SECTION 074217

INSULATED-CORE METALWALLBACKUP PANEL

PART 1 - GENERAL

1.1SECTION INCLUDES

  1. Metal wall backup panel system consisting of foamed-insulation-coremetal wallpanels and accessories.

1.2RELATED REQUIREMENTS

Specifier:Edit list below to correspond to Project.

  1. Division 01 Section "Sustainable Design Requirements" for related LEED general requirements.
  2. Division 05 Section "Cold-Formed Metal Framing" for support framing for metal wall backup panels.
  3. Division 07 air barrier section for transition components to building air barrier at perimeter of metal wall backup panels.
  4. Division 07 Section "Metal Wall Panels" for exterior wall rainscreen panels applied to metal wall backup panels.
  5. Division 07 Section "Sheet Metal Flashing and Trim" for metal flashing components at openings and perimeter.
  6. Division 13 Section "Metal Building Systems" for support framing for metal wall backup panels.

1.3REFERENCE STANDARDS

  1. Reference Standard Editions: Comply with requirements of specified standards edition cited in applicable building code, or if not cited in code, with requirements of edition current at time of issuing of specifications

Specifier:If retaining this optional article, edit list below to correspond to Project.

  1. American Architectural Manufacturer's Association (AAMA):
  2. AAMA 809.2 - Voluntary Specification Non-Drying Sealants
  3. American Society of Civil Engineers (ASCE):
  4. ASCE 7 - Minimum Design Loads for Buildings and Other Structures
  5. ASTM International (ASTM):
  6. ASTM A653/A653M - Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process
  7. ASTM A755 – Standard Specification for Steel Sheet, Metallic Coated by the Hot-Dip Process and Prepainted by the Coil-Coating Process for Exterior Exposed Building Products
  8. ASTM A792 - Standard Specification for Steel Sheet, 55% Aluminum-Zinc Alloy-Coated by the Hot-Dip Process
  9. ASTM C920 - Standard Specification for Elastomeric Joint Sealants
  10. ASTM C1363 - Test Method for Thermal Performance of Building Materials and Envelope Assemblies by Means of a Hot Box Apparatus
  11. ASTM D1929 - Test Method for Determining Ignition Temperature of Plastics
  12. ASTM E72 - Test Methods of Conducting Strength Tests of Panels for Building Construction
  13. ASTM E84 - Test Methods for Surface Burning Characteristics of Building Materials
  14. ASTM E283 - Test Method for Determining the Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors under Specified Pressure Differences across the Specimen
  15. ASTM E331 - Test Method for Water Penetration of Exterior Windows, Curtain Walls, and Doors by Uniform Static Air Pressure Difference
  16. FM Global (FM):

Specifier:Retain FM classification in subparagraph below when required for project utilizing CENTRIA MetalWrap panels with 0.019 inch/26 gage (0.48 mm)face and liner.

  1. ANSI/FMG 4880 - Class 1 Fire Rating of Insulated Wall or Wall and Roof/Ceiling Panels, Interior Finish Materials or Coatings, and Exterior Wall Systems
  1. National Fire Protection Association (NFPA):
  2. NFPA 285 - Standard Fire Test Method for Evaluation of Fire Propagation Characteristics of Exterior Non-Load-Bearing Wall Assemblies Containing Combustible Components
  3. Underwriters Laboratories, Inc. (UL):
  4. UL 263 - Fire Tests of Building Construction and Materials
  5. UL 723 - Test for Surface Burning Characteristics of Building Materials

1.4QUALITY ASSURANCE

Specifier:If project procurement procedures allow retaining manufacturer and product name in Part 2, retain paragraph and subparagraphs below to establish project procedures for evaluation of substitution requests.

  1. Manufacturer Qualifications:Manufacturer listed in this Section or approved for Project with minimum 5 years experience in manufacture of similar products in successful use in similar applications.
  2. Approval of Comparable Products:Submit the following in accordance with project substitution requirements, within time period allowed for substitution review:
  3. Product data, including certified independent test data indicating compliance with requirements.
  4. Samples of each component.
  5. Sample submittal from similar project.
  6. Project references:Minimum of 5 installations not less than 5 years old, with owner contact information.
  7. Sample warranty.
  8. Substitutions following award of contract are not allowed except as stipulated in Division 01 General Requirements.
  9. Approved manufacturers must meet separate requirements of Submittals Article.
  10. Installer Qualifications:Experienced Installer with minimum of 5 successful completed projects of similar materials and scope and employing workers trained by manufacturer to install products of this section.

Specifier:Retain "Buy American Act Certification" when required by project; coordinate with requirements in Submittals article.

  1. Buy American Act Certification:Comply with provisions of the Buy American Act 41 U.S.C 10a – 10d.

1.5ADMINISTRATIVE REQUIREMENTS

  1. Coordination:Coordinate the installation of metal wall backup panel system structural support and exterior metal wall panels.
  2. Preinstallation Meeting: Conduct preinstallation meeting at site attended by Owner, Architect, manufacturer's technical representative, and other trade contractors.
  3. Coordinate building framing in relation to metal wall panels.
  4. Coordinate window, door, and other openings and penetrations of metal wall backup panels.

1.6ACTION SUBMITTALS

  1. Product Data:Manufacturer’s data sheets for metal wall panels and accessories.

Specifier:Retain and edit below to comply with Project requirements for LEED or other sustainable design requirements.

  1. LEED Submittals:
  2. Credit MR 4: Product data indicating the following:
  3. Percentages by weight of post-consumer and pre-consumer recycled content.
  4. Total weight of products provided.
  5. Shop Drawings:Prepared by manufacturer or manufacturer's authorized dealer.Installation drawings for metal wall backup panels, flashing, accessories, and anchorage systems must indicate completely dimensioned structural frame and erection layouts, openings in the wall, special framing details, and construction details at corners, building intersections and flashing, location and type of mastic and metal filler strips.
  6. Indicate coordination dimensions related to structural support system elements provided by others.
  7. Include structural data indicating compliance with performance requirements.
  8. Samples for Verification:Provide minimum 10-inch(250-mm)square section of metal wall backup panel showing finishes, interlocking joint, insulated core,and anchorage detail.

1.7INFORMATIONAL SUBMITTALS

  1. Product Test Reports:Indicating compliance of products with requirements, from a qualified independent testing agency.
  2. Qualification Information:For Installer firm, Installer’s field supervisor.

Specifier:Retain "Buy American Act Certification" paragraph when required by project; coordinate with requirements in Submittals article.

  1. Buy American Act certification.

1.8CLOSEOUT SUBMITTALS

  1. Maintenance data.

1.9DELIVERY, STORAGE, AND HANDLING

  1. Protect metal wall backup panels during shipping, handling, and storage to prevent staining, denting, or other visible damage. Deliver, unload, store, and erect metal wall backup panels and accessory items without misshaping panels or exposing panels to surface damage from weather or construction operations. Protect from exposure to sunlight.

1.10WARRANTY

Specifier:Retain first "Special Manufacturer's Warranty" paragraph below when specifying CENTRIA MetalWrap panels in conjunction with CENTRIA metal wall panels as a combined cladding and backup system.

  1. Special Manufacturer’s Warranty:Refer to Division 07 metal wall panel section for warranty requirements for combined metal wall panel cladding and metal wall backup panel system.

Specifier: Warranty terms below are available from CENTRIA. Verify that other allowable manufacturers furnish warranty meeting requirements.

  1. Special Manufacturer’s Warranty:On manufacturer’s standard form, in which manufacturer agrees to repair or replace metal wall backup panel assemblies that fail in materials and workmanship withinwarranty period.
  2. Warranty Period:Two years from date of Substantial Completion.

PART 2 - PRODUCTS

Specifier:If project procurement procedures allow retaining manufacturer and product name, retain paragraph and subparagraphs below and modify as required.

2.1MANUFACTURERS

  1. Basis of Design:CENTRIA, MetalWrap. Provide basis of design product[or comparable products of other manufacturer approved by Architect in accordance with Instructions to Bidders and Division 01 General Requirements].
  2. CENTRIA Architectural Systems; Moon Township PA 15108-2944; (800)759-7474;(412)299-8000; ;
  3. Single Source:Obtain metal wall backup panels and exterior cladding panels specified in Division 07 Section "Metal Wall Panels"through one source from a single approved manufacturer.

2.2PERFORMANCE REQUIREMENTS

  1. General:Provide metal wall backup panel system meeting the following performance requirements as determined by a qualified testing agency’s application of specified tests on manufacturer’s standard assemblies.

Specifier:Retain "Recycled Content of Steel Sheet" paragraph when required by LEED or general sustainable design requirements of project.

  1. Recycled Content of Steel Sheet:Postconsumer recycled content plus one-half of preconsumer recycled content not less than 25 percent.
  2. Structural Performance:Provide metal wall backup panel system fabricated to withstand effects of indicated loads and stresses within limits and under conditions indicated, when tested per ASTME72.

Specifier: Consult structural engineer and edit below as required bylocal codes.

  1. Wind Load Test:Determine loads based on uniform pressure indicated on the drawings.
  2. Deflection Limits Test:Withstand test pressures of 150 percent of inward and outward wind-load design pressures with maximum deflection of 1/120 of the span with no evidence of failure.
  3. Seismic Performance Test:Comply with ASCE 7, "Minimum Design Loads for Buildings and Other Structures":Section 9, "Earthquake Loads."
  1. Air Infiltration Test:Maximum 0.01 cfm/sq. ft. (0.05 L/s per sq. m) per ASTM E283 at a static-air-pressure difference of 6.24 lbf/sq. ft. (300 Pa).
  2. Water Penetration Test:No uncontrolled water penetration at a static pressure of 15 lbf/sq.ft. (0.7kPa) per ASTM E331.
  3. Thermal Performance Test:Thermal Resistance (R-value) indicated, per ASTM C1363, corrected to 15 mph (24.1 k/h) outside and still air inside, as-installed condition including fastening and joints.

Specifier:Metal cladding on CENTRIA MetalWrap panels meets requirements for thermal protection of foam plastics in IBC Chapter 26.

  1. Fire-Test-Response Characteristics: Provide metal wall backup panel system with the following fire-test-response characteristics determined by the indicated test standard as applied by UL or other testing and inspection agency acceptable to authorities having jurisdiction.
  2. Surface Burning Characteristics:Not greater than the following, per ASTM E84 or UL723, for foam core and interior surface:
  3. Flame spread index: 25 or less.
  4. Smoke developed index: 450 or less.

Specifier:Retain "Intermediate Scale Multistory Fire Test" Paragraph when required by authorities having jurisdiction.

  1. Intermediate Scale Multistory Fire Test:Representative mockup tested per NFPA285.

Specifier:Retain "Fire Performance of Insulated Wall" subparagraph when required by Owner's insurer; retain requirement for 26 ga. panel faces in Part 2.

  1. Fire Performance of Insulated Wall:Approved as a Class 1 wall panel per ANSI/FM4880.

2.3SYSTEM DESCRIPTION

  1. Insulated-Core Metal Wall Backup Panel System:Metal wall backup panel installation consisting of foamed-insulation-core metal-skinned wall panels and accessories, attached to metal framing with specified clips, serving as combined thermal, air, and moisture barrier and support for [metal wall panel rainscreen cladding][brick veneer][terra cotta veneer] specified in another section.

Specifier:CENTRIA MetalWrap Insulated Composite Backup Panels are available in 12 foot (3658 mm) and 20 foot (6096 mm) lengths, in two widths, in two thicknesses for horizontal applications and two thicknesses for vertical applications. Panels are configured and shipped to accommodate application for backup for vertical or horizontal metal cladding or as masonry veneer backup.

2.4METAL WALL BACKUP PANELS

  1. Insulated Composite Backup Panels:Foamed-insulation-core metal-skinned panels with interlocking side joinery and butted end joints.Fabricate in factory with metal facings bonded to foamed-in-place core. Fabricate interior metal face with planking ribs.Form interlocking joinery to accept concealed fasteners for attachment to supports.
  2. Basis of Design Product:CENTRIA, MetalWrap Insulated Composite Backup Panel.

Specifier:Retain one "Panel Faces" paragraph below as required for project. 29-ga panel is typical for horizontal applications; 26-ga panel is required for vertical MetalWrap applications and for horizontal applications where compliance with FM 4880 Class 1 fire rating is required.

  1. Panel Faces:0.0142-inch/29-ga. (0.360-mm) thick aluminum-zinc alloy coated steel sheet:ASTMA792/A792M, ClassAZ50 (ClassAZM150) coating designation; structural quality, with smooth surface.
  2. Panel Faces:0.019-inch/26-ga. (0.483-mm) thick metallic-coated steel sheet:ASTMA653/A653M, G90 (Z275) coating designation; structural quality, with smooth surface.

Specifier:First option in "Panel Face Finish" paragraph is standard; second option is available for louver blank-off panels.

  1. Panel Face Finish:[0.2-mil (0.051-mm) thick primer coat][0.2-mil (0.051-mm) thick primer coat plus 0.8-mil (0.203-mm) thick black silicon polyester color coat on exterior face and 0.2-mil (0.051-mm) thick primer coat on interior face].
  2. Panel Core:Foamed-in-place modified polyisocyanurate, closed-cell, CFC and HCFC free, with minimum density of 2.4 lb/cu. ft. (39 kg/cu. m) and minimum compressive strength of 15 lb/sq. in. (103 kPa).
  3. Panel Sealant/Vapor Seal:Factory-applied non-curing butyl.

Specifier:Retain "Horizontal Panel" or "Vertical Panel" paragraph below as required for project.

Retain one of two options based upon project thermal performance requirements.

  1. Horizontal Metal Wall Backup Panel Thickness and Thermal Resistance:[2 inches (51 mm); R14][3 inches (76 mm); R21].

Specifier:Select one of two options based upon project thermal performance requirements.

  1. Vertical Metal Wall Backup Panel Thickness and Thermal Resistance:[2.75 inches (69 mm); R20][4 inches (101 mm); R27].

Specifier:Retain second option in "Panel Width" subparagraph when required to align ties in panel joints with masonry course spacing.

  1. Panel Width:[36 inches (914 mm)][32 inches (813 mm)].
  2. Panel Configuration:Provide metal wall backup panels configured for the following application system:

Specifier:Retain one or more of the following backup panel configurations as required for project.

System in subparagraph below corresponds to CENTRIA MetalWrap Type 1 System with MR-100 Integral Attachment System utilizing VS-300 subgirt.

  1. Horizontal metal wall backup panels with integral pre-punched attachment system configured to serve as attachment points for manufacturer-furnished vertical subgirts to receive horizontal cladding.

System in subparagraph below corresponds to CENTRIA MetalWrap Type 2 System with MR-300 Integral Attachment System utilizing VS-300 subgirt.

  1. Horizontal metal wall backup panels with integral pre-punched attachment system configured to serve for the direct attachment of vertical cladding, or as attachment points for manufacturer-furnished vertical subgirts to receive horizontal cladding

System in subparagraph below corresponds to CENTRIA MetalWrap Type 3 System utilizingHohmann and Barnard 200 Series Joint Anchors and 200 Series Surface Mount Anchors.

  1. Horizontal metal wall backup panel for masonry veneer, with manufacturer-furnished veneer anchors in panel joints and attached at panel midpoints.

System in subparagraph below corresponds to CENTRIA MetalWrap Type 4 System. Utilize CENTRIA 14 ga. A-42 clip for 2 inch thick panels, and A-43 clip for 3 inch panels. System requires minimum 16 ga. steel stud framing.

  1. Horizontal metal wall backup panel with manufacturer-furnished 0.064 inch/14 ga. (1.63 mm)zee clips configured to serve as attachment points for vertical subgirts to receive horizontal cladding.

System in subparagraph below utilizes CENTRIA MetalWrap oriented vertically using mounting clips configured to accept vertical subgirts. System may be utilized for wall construction framed with horizontal purlins.

  1. Vertical installation metal wall backup panel , with manufacturer-furnished0.081 inch/12 ga. (2.05 mm)attachment clips,304 stainless steel fasteners, and vertical subgirts

2.5METAL WALL BACKUP PANEL ACCESSORIES