CENTRIA Concept Series Metal Wall Rainscreen Panel +
MetalWrap™ Insulated Composite Backup Panel System
CENTRIA Concept Series™ Metal Wall Panels are a versatile design choice for wall cladding panels.
They are manufactured with a variety of profiles, metal substrates, and surface treatments, and are
available in over 60 standard colors plus custom colors. Panels are available as hot-dip galvanized,
Galvalume®, or Galvalume Plus® coated steel; aluminum and stainless steel panels are available.
CENTRIA Concept Series Wall Panels coated with CENTRIA's own Fluorofinish® Kynar 500®/Hylar 5000®based fluoropolymer or Versacor Ultra® corrosion- and abrasion- resistant finishes will last for decades.
Highly UV resistant are durable in the face of chemical and air borne pollution, salt spray and wind-driven
sand. CENTRIA coatings set the standard for the industry.
Stand-off clips for CENTRIA Metal Wall Panels create a vented cavity allowing a drainage plane to form
behind the panels; the tight engagement of the clips and their extra thickness provide added resistance
to deformation and disengagement – providing a long-life installation. Panels are also available with a
factory-installed sealant in the side joint for a weather tight barrier installation.
CENTRIA Microline extrusions 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.
CENTRIA MetalWrap Insulated Composite Backup Panel System is designed to be used with
uninsulated CENTRIA metal wall panels to create a complete wall system solution. The unique composite
design of MetalWrap provides an air barrier, moisture barrier, 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. MetalWrap eliminates 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 R-14 (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: info@centria.com, www.centria.com
for a list of local offices.
CENTRIA products appear in the following MasterFormat sections:
● Section 07 41 13 – Metal Roof Panels (SRS2, SRS3)
CENTRIA
METAL WALL RAINSCREEN PANEL WITH METAL WALL BACKUP PANEL SYSTEM
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●
●
●
●
●
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.
Concept Series™ and MetalWrap™ are trademarks of CENTRIA, Inc
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.
CENTRIA
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SECTION 07 42 13.05
METAL WALL RAINSCREEN PANEL WITH
METAL WALL BACKUP PANEL SYSTEM
PART 1 - GENERAL
1.1
SECTION INCLUDES
A.
1.2
Concealed-fastener metal wall rainscreen panels installed over insulated metal wall backup
panels providing thermal, air, water, and water vapor control.
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 support framing for metal wall backup
panels.
C.
Division 07 air barrier section for transition components to building air barrier at perimeter of
metal wall backup panels.
D.
Division 07 Section "Sheet Metal Flashing and Trim" for metal flashing components at openings
and perimeter.
E.
Division 07 Section "Joint Sealants" for field-applied joint sealants.
F.
Division 13 Section "Metal Building Systems" for support framing for metal wall backup panels.
1.3
REFERENCE STANDARDS
A.
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.
B.
American Architectural Manufacturer's Association (AAMA): www.aamanet.org:
1.
2.
3.
C.
American Iron and Steel Institute (AISI): www.steel.org:
1.
CENTRIA
AAMA 621 - Voluntary Specification for High Performance Organic Coatings on Coil
Coated Architectural Hot Dipped Galvanized (HDG) and Zinc-Aluminum Coated Steel
Substrates
AAMA 809.2 - Voluntary Specification Non-Drying Sealants
AAMA 2605 - Voluntary Specification, Performance Requirements and Test Procedures for
Superior Performaing Organic Coatings on Aluminum Extrusions and Panels
Standard for Cold-Formed Steel Framing - General Provisions
METAL WALL RAINSCREEN PANEL WITH METAL WALL BACKUP PANEL SYSTEM
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D.
American Society of Civil Engineers (ASCE): www.asce.org/codes-standards:
1.
E.
ASTM International (ASTM): www.astm.org:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
F.
ASCE 7 - Minimum Design Loads for Buildings and Other Structures
ASTM A653/A653M - Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or
Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process
ASTM A666 - Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet,
Strip, Plate, and Flat Bar
ASTM A755/A755M - Specification for Steel Sheet, Metallic Coated by the Hot-Dip Process
and Prepainted by the Coil-Coating Process for Exterior Exposed Building Products.
ASTM A792/A792M - Standard Specification for Steel Sheet, 55% Aluminum-Zinc AlloyCoated by the Hot-Dip Process.
ASTM B209 - Specification for Aluminum and Aluminum Alloy Sheet and Plate.
ASTM C920 - Standard Specification for Elastomeric Joint Sealants.
ASTM C1007 - Standard Specification for Installation of Load Bearing (Transverse and
Axial) Steel Studs and Related Accessories.
ASTM C1363 - Test Method for Thermal Performance of Building Materials and Envelope
Assemblies by Means of a Hot Box Apparatus.
ASTM E72 - Test Methods of Conducting Strength Tests of Panels for Building
Construction
ASTM E84 - Test Methods for Surface Burning Characteristics of Building Materials.
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.
ASTM E331 - Test Method for Water Penetration of Exterior Windows, Curtain Walls, and
Doors by Uniform Static Air Pressure Difference.
FM Global (FM): www.fmglobal.com:
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.
G.
National Fire Protection Association (NFPA): www.nfpa.org:
1.
H.
Architectural Sheet Metal Manual
Underwriters Laboratories, Inc. (UL): www.ul.com:
1.
CENTRIA
NFPA 285 - Standard Fire Test Method for Evaluation of Fire Propagation Characteristics
of Exterior Non-Load-Bearing Wall Assemblies Containing Combustible Components
Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA):
1.
I.
ANSI/FM 4880 - Class 1 Fire Rating of Insulated Wall or Wall and Roof/Ceiling Panels,
Interior Finish Materials or Coatings, and Exterior Wall Systems.
UL 723 - Test for Surface Burning Characteristics of Building Materials
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1.4
QUALITY 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.
A.
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.
1.
Approval of Comparable Products: Submit the following in accordance with project
substitution requirements, within time period allowed for substitution review:
a.
b.
c.
d.
e.
f.
2.
3.
B.
Product data, including certified independent test data indicating compliance with
requirements.
Load span tables including evaluation of panel clip and panel side joint interaction.
Samples of each component.
Sample submittal from similar project.
Project references: Minimum of 5 installations not less than 5 years old, with
owner contact information.
Sample warranty.
Substitutions following award of contract are not allowed except as stipulated in Division
01 General Requirements.
Approved manufacturers must meet separate requirements of Submittals Article.
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.
C.
1.5
Buy American Act Certification: Comply with provisions of the Buy American Act 41 U.S.C
10a – 10d.
ADMINISTRATIVE REQUIREMENTS
A.
Coordination: Coordinate the installation of metal wall backup panel system structural support
and exterior metal wall panels.
B.
Preinstallation Meeting: Conduct preinstallation meeting at site attended by Owner, Architect,
manufacturer's technical representative, and other trade contractors.
1.
2.
1.6
Coordinate building framing in relation to metal wall panels.
Coordinate window, door, and other openings and penetrations of metal wall backup
panels.
ACTION SUBMITTALS
A.
CENTRIA
Product Data: Manufacturer’s data sheets for metal wall panels and accessories.
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Specifier: Retain and edit below to comply with Project requirements for LEED or other sustainable design
requirements.
B.
LEED Submittals:
1.
Credit MR 4: Product data indicating the following:
a.
b.
Percentages by weight of post-consumer and pre-consumer recycled content.
Total weight of products provided.
C.
Shop Drawings: Prepared by manufacturer or manufacturer's authorized dealer. Installation
drawings for metal wall panels and metal wall backup panels, flashing, accessories, and
anchorage systems. Indicate dimensioned structural frame and erection layouts, openings in
walls, special framing details, and construction details at corners, building intersections and
flashing, location and type of mastic and metal filler strips.
1.
Indicate coordination dimensions related to structural support system elements provided
by others.
2.
Indicate details of fastening, including clip spacing, supported by load span tables that
include an evaluation of clip and panel side joint interaction.
3.
Include structural data indicating compliance with performance requirements.
D.
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.
1.7
INFORMATIONAL SUBMITTALS
A.
Product Test Reports: Indicating compliance of products with requirements, from a qualified
independent testing agency.
B.
Qualification Information: For Installer firm, Installer’s field supervisor.
Specifier: Retain "Dade County Approval" paragraph below when authorities having jurisdiction require
certification of high wind design compliance.
A.
Dade County Approval: Miami-Dade County Notice of Acceptance (NOA).
B.
Manufacturer's warranty: Submit sample warranty.
Specifier: Retain "Buy American Act Certification" when required by project; coordinate with requirements
in Submittals article.
C.
1.8
Buy American Act certification.
CLOSEOUT SUBMITTALS
A.
1.9
Maintenance data.
DELIVERY, STORAGE, AND HANDLING
A.
CENTRIA
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.
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1.10
WARRANTY
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.
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.
A.
Special Panel Finish Warranty: On manufacturer’s standard form, in which manufacturer
agrees to repair or replace metal wall panels that evidence deterioration of finish within the
following periods from the date of substantial completion:
1.
Warranty Period: 20 years.
PART 2 - PRODUCTS
Specifier: If project procurement procedures allow retaining manufacturer and product name, retain
paragraph and subparagraphs below and modify as required.
2.1
MANUFACTURERS
A.
Basis of Design: CENTRIA, Concept Series Metal Wall Panels with MetalWrap Backup
Panels. Provide basis of design products [or comparable products of other manufacturer
approved by Architect in accordance with Instructions to Bidders and Division 01 General
Requirements].
1.
B.
2.2
CENTRIA Architectural Systems; Moon Township PA 15108-2944; (800)759-7474;
(412)299-8000; info@CENTRIA.com; www.CENTRIA.com.
Single Source: Obtain metal wall backup panels and exterior cladding panels through one
source from a single approved manufacturer.
PERFORMANCE REQUIREMENTS
A.
General: Provide metal wall panel assemblies including backup panel system meeting the
performance requirements of this Article 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.
B.
Recycled Content of Steel Sheet: Postconsumer recycled content plus one-half of
preconsumer recycled content not less than 25 percent.
C.
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
ASTM E72.
CENTRIA
METAL WALL RAINSCREEN PANEL WITH METAL WALL BACKUP PANEL SYSTEM
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Specifier: Consult Project structural engineer and edit below as required by local codes.
1.
2.
3.
Wind Load Test: Determine loads based on uniform pressure indicated on the drawings.
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.
Seismic Performance Test: Comply with ASCE 7, "Minimum Design Loads for Buildings
and Other Structures": Section 9, "Earthquake Loads."
Specifier: Retain paragraph below if secondary metal framing is included in work of this Section.
4.
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: "Air Infiltration Test," "Water Penetration Test," and "Thermal Performance Test" Paragraphs
reflect the superior envelope performance available on rainscreen applications utilizing CENTRIA
MetalWrap as a substrate.
D.
Air Infiltration Test: Maximum 0.01 cfm/sq. ft. (0.05 L/s per sq. m) per ASTM E283 at a staticair-pressure difference of 6.24 lbf/sq. ft. (300 Pa).
E.
Water Penetration Test: No uncontrolled water penetration at a static pressure of 15 lbf/sq. ft.
(0.7 kPa) per ASTM E331.
F.
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: For horizontal applications, and other applications where thermal movement is an issue, retain
the requirements below. Retain clip fasteners in Part 2.
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: Metal cladding on CENTRIA MetalWrap panels meets requirements for thermal protection of
foam plastics in IBC Chapter 26.
H.
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.
1.
Surface Burning Characteristics: Not greater than the following, per ASTM E84 or UL
Standard 723, for foam core and interior surface:
a.
b.
Flame spread index: 25 or less.
Smoke developed index: 450 or less.
Specifier: Retain "Intermediate Scale Multistory Fire Test" Paragraph when required by authorities having
jurisdiction.
CENTRIA
METAL WALL RAINSCREEN PANEL WITH METAL WALL BACKUP PANEL SYSTEM
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2.
Intermediate Scale Multistory Fire Test: Representative mockup tested per
NFPA 285.
Specifier: Retain "Fire Performance of Insulated Wall" subparagraph when required by Owner's insurer;
retain requirement for 26 ga. panel faces in Part 2.
3.
Fire Performance of Insulated Wall: Approved as Class 1 wall panel per
ANSI/FM 4880.
2.3
SYSTEM DESCRIPTION
A.
2.4
Rainscreen Metal Wall Panels with Insulated-Core Metal Wall Backup Panel System: Single-skin
formed metal wall panels with metal wall backup panel installation consisting of foamedinsulation-core metal-skinned backup panels, attached to metal framing with specified clips,
serving as combined thermal, air, and moisture barrier.
CONCEALED FASTENER METAL WALL PANELS
Specifier: All CENTRIA Concept Series concealed fastener metal wall panels are suitable for horizontal and
vertical installation. Panels are manufactured with a common lock joint design that permits the
integration of multiple profiles in one system. Stand-off clips provide a ventilated cavity and a drain plane
behind panels when required. Standard lengths are 5 to 30 feet; custom length panels are available on
special order.
Specify optional factory-applied sealant in vertical panel side laps when added water resistance is
required. CENTRIA recommends a complete water-resistant barrier behind horizontal panels. Concept
Series panels without added joint sealants function as pressure-equalized rainscreen cladding.
For vertical panel and soffit applications and other applications where thermal movement is of minimum
concern, Concept Series profiles may be specified with an extended fastener leg for concealed and
clipless attachment. This is designated by adding an "E" to the profile name, as shown below.
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, concealed fastener panels with interconnecting
side joints, fastened to supports with concealed fasteners, with factory-applied sealant in side
laps when required to meet performance requirements.
Specifier: CENTRIA 200 Series Metal Wall Panels are manufactured in 12 inch widths and are available in
standard panel lengths from 5 foot (1524 mm) to 30 foot (9144 mm). Custom length panels are available
on special order.
B.
Reveal-joint profile with raised flat pan MWP#___:
1.
2.
3.
C.
Reveal-joint profile with raised flat pan and concealed extended fastener leg MWP#___:
1.
CENTRIA
Basis of Design Product: CENTRIA, CS-200.
Panel Coverage: 12 inches (305 mm).
Panel Thickness: 0.875 inch (22 mm).
Basis of Design Product: CENTRIA, CS-200E.
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2.
3.
D.
Double-reveal profile with raised flat pan and rib MWP#___:
1.
2.
3.
E.
Basis of Design Product: CENTRIA, CS-210E.
Panel Coverage: 12 inches (305 mm).
Panel Thickness: 0.875 inch (22 mm).
Three-rib Profile MWP#___:
1.
2.
3.
G.
Basis of Design Product: CENTRIA, CS-210.
Panel Coverage: 12 inches (305 mm).
Panel Thickness: 0.875 inch (22 mm).
Double-reveal profile with raised flat pan and rib, with concealed extended fastener leg
MWP#___:
1.
2.
3.
F.
Panel Coverage: 12 inches (305 mm).
Panel Thickness: 0.875 inch (22 mm).
Basis of Design Product: CENTRIA, CS-260.
Panel Coverage: 12 inches (305 mm).
Panel Thickness: 0.875 inch (22 mm).
Three-rib profile with concealed extended fastener leg MWP#___:
1.
2.
3.
Basis of Design Product: CENTRIA, CS-260E.
Panel Coverage: 12 inches (305 mm).
Panel Thickness: 0.875 inch (22 mm).
Specifier: CENTRIA 600 Series Metal Wall Panels are manufactured in 16 inch widths.
H.
Double-reveal profile with raised flat pan and rib MWP#___:
1.
2.
3.
I.
Double-reveal profile with raised flat pan and rib, with concealed extended fastener leg
MWP#___:
1.
2.
3.
J.
Basis of Design Product: CENTRIA, CS-620.
Panel Coverage: 16 inches (406 mm).
Panel Thickness: 0.875 inch (22 mm).
Double-reveal profile with evenly-spaced raised flat pan between reveals and concealed
extended fastener leg MWP#___:
1.
CENTRIA
Basis of Design Product: CENTRIA, CS-610E.
Panel Coverage: 16 inches (406 mm).
Panel Thickness: 0.875 inch (22 mm).
Double-reveal profile with evenly-spaced raised flat pan between reveals MWP#___:
1.
2.
3.
K.
Basis of Design Product: CENTRIA, CS-610.
Panel Coverage: 16 inches (406 mm).
Panel Thickness: 0.875 inch (22 mm).
Basis of Design Product: CENTRIA, CS-620E.
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2.
3.
L.
Four-rib profile with recessed flat pan between ribs MWP#___:
1.
2.
3.
M.
Basis of Design Product: CENTRIA, CS-660.
Panel Coverage: 16 inches (406 mm).
Panel Thickness: 0.875 inch (22 mm).
Four-rib profile with recessed flat pan between ribs and concealed extended fastener leg
MWP#___:
1.
2.
3.
2.5
Panel Coverage: 16 inches (406 mm).
Panel Thickness: 0.875 inch (22 mm).
Basis of Design Product: CENTRIA, CS-660E.
Panel Coverage: 16 inches (406 mm).
Panel Thickness: 0.875 inch (22 mm).
METAL WALL PANEL MATERIALS
Specifier: Select metal wall panel face material from three paragraphs below: Galvanized, Aluminum-zinc
alloy-coated steel sheet (Galvalume), Aluminum, or Stainless-steel. Consult CENTRIA representative for
recommendations.
A.
Metallic-Coated Steel Face Sheet: Coil-coated, ASTM A755/A755M.
1.
2.
Zinc-Coated (Galvanized) Steel Sheet: ASTM A653/A653M, G90 (Class Z275), structural
steel quality.
Aluminum-zinc alloy-coated Steel Sheet: ASTM A792/A792 M, Class AZ50 Grade 50 (Class
AZM150, Grade 275), structural steel quality.
Specifier: Select required metal face sheet thickness from options below. 0.024 inch/24 gage (0.60 mm)
thickness is available in CENTRIA CS-260/260E and CS 660/660E panels only.
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. 0.032 inch thickness is available
in CENTRIA CS-260/260E and CS 660/660E panels.
1.
2.
Face Sheet: [0.032 inch (0.8 mm)] [0.040 inch (1.0 mm)] [0.050 inch (1.27 mm)]
nominal thickness.
Surface: [Smooth] [Non-Directional Embossed].
Specifier: Retain and edit subparagraph below for projects that include requirements for use of recycled
content in products. Verify proportion of recycled content with manufacturer.
3.
Aluminum Products Recycled Content: Average of postconsumer recycled content plus
one-half of preconsumer recycled content not less than 50 percent.
C.
CENTRIA
Stainless-Steel Face Sheet: ASTM A666, architectural grade alloy type as indicated.
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Specifier: Select required metal face sheet thickness from options below. 0.024 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, bright, non-directional polish, No. 2B] [Type 316, bright, nondirectional polish, No. 2B].
2.6
METAL WALL PANEL FINISHES
Specifier: Select metallic-coated steel face sheet or aluminum face sheet finish system from options
below. AAMA 2605 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 [2605] [621].
a.
2.
Fluoropolymer Two-Coat System: 0.8 mil primer with 0.8 mil 70 percent PVDF
fluoropolymer color coat, AAMA [2605] [621].
a.
3.
Basis of Design: CENTRIA Duragard Plus.
Fluoropolymer Two-Coat Mica System: 0.25-mil primer with 0.8-mil 70 percent PVDF
fluoropolymer color coat providing a pearlescent appearance, AAMA [2605] [621].
a.
5.
Basis of Design: CENTRIA Duragard.
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 [2605] [621].
a.
4.
Basis of Design: CENTRIA Fluorofinish.
Basis of Design: CENTRIA Sundance Mica.
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 [2605] [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.
CENTRIA
Fluoropolymer Two-Coat Corrosion and Abrasion Resistant System: 3.0 mil primer with
0.8 mil 70 percent PVDF fluoropolymer color coat
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a.
b.
7.
Urethane Two-Coat Corrosion and Abrasion Resistant System: 3.0 mil primer with 1.5 mil
urethane color coat.
a.
b.
8.
Interior Finish: [3.0 mil primer and wash coat topcoat] [3.0 mil primer and
polyester topcoat] [3.0 mil primer and urethane topcoat].
Basis of Design: CENTRIA Versacor Ultra TF.
Urethane Two-Coat Plus Corrosion and Abrasion Resistant System: 3.0 mil primer with
3.0 mil urethane color coat.
a.
b.
B.
Interior Finish: [3.0 mil primer and wash coat topcoat] [3.0 mil primer and
polyester topcoat] [3.0 mil primer and urethane topcoat].
Basis of Design: CENTRIA Versacor Ultra PF.
Interior Finish: [3.0 mil primer and wash coat topcoat] [3.0 mil primer and
polyester topcoat] [3.0 mil primer and urethane topcoat].
Basis of Design: CENTRIA Versacor Ultra HF.
Color:
Specifier: Retain one or both subparagraphs below has required for Project.
1.
2.
2.7
Exterior Surface: [As indicated] [As selected by Architect from manufacturer's standard
colors] [Match Architect's custom color].
Interior Surface: [Manufacturer's standard primer color] [As indicated] [As selected by
Architect from manufacturer's standard colors] [Match Architect's custom color].
METAL WALL PANEL ACCESSORIES
A.
Metal Wall Panel Accessories, General: Provide complete metal wall panel assembly
incorporating trim, copings, fasciae, parapet caps, soffits, sills, inside and outside corners, and
miscellaneous flashings. Provide manufacturer's factory-formed clips, shims, flashings, gaskets,
lap tapes, closure strips, and caps for a complete installation. Fabricate and install accessories
in accordance with SMACNA Manual.
Specifier: CENTRIA offers Microline Extrusions, an extensive line of complementary extruded trims
that integrate both visually and mechanically with CENTRIA profile panels.
B.
Extruded Trim: Manufacturer's complementary aluminum extrusions for head, jamb, sill, base,
flush, reveal, inside and outside corner, endwall, and expansion joint details. Finish to match
metal wall panels.
1.
Basis of Design: CENTRIA, Microline Extrusions.
Specifier: CENTRIA offers MicroSeam Corners, a popular design feature that accentuates horizontal
lines by eliminating trim at corners.
C.
CENTRIA
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.
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1.
2.
Welded, riveted, fastened, or field- fabricated corners do not meet the requirements of
this specification.
Basis of Design: CENTRIA, MicroSeam Corners.
D.
Formed Flashing and Trim: Match material, thickness, and color of metal wall panel face sheets.
E.
Sealants: Type recommended by metal wall panel manufacturer for application, meeting
requirements of Division 07 Section "Joint Sealants."
F.
Flashing Tape: 4-inch wide self-adhering butyl flashing tape.
G.
Fasteners, General: Self-tapping screws, bolts, nuts, and other acceptable fasteners
recommended by panel manufacturer. Where exposed fasteners cannot be avoided for
miscellaneous applications, supply corrosion-resistant fasteners with heads matching color of
metal wall panels by means factory-applied coating.
H.
Concealed Clips: Galvanized steel, 0.051 inch/16 ga. (1.29 mm) thick, designed to allow
unimpeded thermal movement of panel and configured to hold panel minimum 1/2 inch (12.7
mm) from substrate.
2.8
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.
Specifier: Select options and edit below as required for Project. Coordinate with HVAC engineer. Indicate
size on Drawings. Integral louvers are available with CS-260 and CS-660 panels only.
B.
Horizontal, Drainable-Blade Fixed Louver:
1.
2.
3.
C.
Louver Size: As indicated on Drawings.
Louver Depth: Match metal wall panel system depth.
Free Area: 30 percent.
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.
2.
Bird Screen: 1/2-inch (12 mm) mesh aluminum, crimped.
Insect Screen: 14-18 mesh aluminum, crimped.
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.
CENTRIA
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2.9
METAL WALL BACKUP PANELS
A.
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.
1.
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.
B.
Panel Faces: 0.0142-inch/29-ga. (0.360-mm) thick aluminum-zinc alloy coated steel sheet:
ASTM A792/A792M, Class AZ50 (Class AZM150) coating designation; structural quality, with
smooth surface.
C.
Panel Faces: 0.019-inch/26-ga. (0.483-mm) thick metallic-coated steel sheet:
ASTM A653/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.
D.
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].
E.
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).
F.
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.
G.
Horizontal Metal Wall Backup Panel Thickness and Thermal Resistance: [2 inches (51
mm); R-14] [3 inches (76 mm); R-21].
Specifier: Select one of two options based upon project thermal performance requirements.
H.
Vertical Metal Wall Backup Panel Thickness and Thermal Resistance: [2.75 inches (69
mm); R-20] [4 inches (101 mm); R-27].
Specifier: Retain second option in "Panel Width" subparagraph when required to align ties in panel joints
with masonry course spacing.
I.
CENTRIA
Panel Width: [36 inches (914 mm)] [32 inches (813 mm)].
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J.
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.
2.
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 utilizing
Hohmann and Barnard 200 Series Joint Anchors and 200 Series Surface Mount Anchors. Retain if a
portion of the work includes backup for face brick.
3.
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.
4.
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-furnished 0.081 inch/12
ga. (2.05 mm) attachment clips, 304 stainless steel fasteners, and vertical subgirts
2.10
METAL WALL BACKUP PANEL ACCESSORIES
A.
Subgirts: Metallic-coated steel sheet, ASTM A653/A653M, G90 (Z275) coating designation;
structural quality, 0.051-inch/16-gage (1.29-mm) thick.
B.
Panel Mounting Clips: Metallic-coated steel sheet, ASTM A653/A653M, G90 (Z275) coating
designation, of thickness indicated, configured to serve as attachment points for secondary
metal framing where indicated, manufacturer-furnished.
C.
Self-Adhering Sheet Flashing: Minimum 25-mil (0.64-mm) modified bituminous sheet,
recommended by panel manufacturer for application.
D.
Joint Sealants:
1.
CENTRIA
Concealed: Non-skinning butyl sealant, AAMA 809.2.
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2.
E.
Fasteners: Corrosion-resistant, self-tapping and self-drilling screws, bolts, nuts, and other
fasteners as recommended by panel manufacturer for application.
1.
2.11
A.
A.
Size fasteners to prevent penetration of interior panel facing.
SECONDARY METAL SUBGIRT FRAMING
Miscellaneous Framing Components, General: Cold-formed metallic-coated steel sheet,
ASTM A653/A653M, G90 (Z180).
1.
2.
2.12
Exposed: Elastomeric silicone sealant, ASTM C920, as recommended by panel
manufacturer.
Hat Channels: 0.053 inch/16 ga. (1.34 mm) minimum.
Sill Channels: 0.053 inch/16 ga. (1.34 mm) minimum.
FABRICATION
General: Fabricate metal wall backup panels at the factory, using manufacturer's standard
procedures and processes identical to tested units and as necessary to meet performance
requirements.
1.
2.
Fabricate metal wall backup panels with joints between panels designed to form
weathertight seals.
Factory form metal wall backup panels in a continuous process with no glues or
adhesives between dissimilar materials. Trim and square edges of sheets with no
displacement of face sheets or protrusion of core material.
PART 3 - EXECUTION
3.1
INSPECTION
A.
Examine building structure with Installer present. Inspect for erection tolerances and other
conditions that would adversely affect installation.
1.
Inspect framing that will support metal wall backup panel system to determine if support
components are installed as indicated on approved shop drawings and are within
tolerances acceptable to panel manufacturer.
a.
Maximum deviations acceptable to metal wall backup panel system manufacturer:
1)
2)
3/8 inch (9.5 mm) in any 20-foot (6.1 m) length vertically or horizontally
from the framing face plane.
3/4 inch (19 mm) maximum deviation from the framing face plane on any
building elevation.
B.
Air/Moisture Barriers: Confirm that work has been completed, inspected, and tested as
required.
C.
Openings: Verify that window, door, louver and other penetrations match layout on shop
drawings.
CENTRIA
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D.
3.2
Correct out of tolerance work and other deficient conditions prior to proceeding with insulated
composite backup panel installation.
METAL WALL BACKUP PANEL SYSTEM INSTALLATION
A.
General: Install metal wall backup panel system in accordance with approved shop drawings
and manufacture's recommendations.
B.
Installation: Attach backup panels to supports at each panel connection point indicated on
approved shop drawings.
1.
2.
3.
4.
Install with drain plane of panel facing weather side of installation.
Fasten insulated metal wall backup panels to building framing with [continuous integral
attachment subgirts] or [special clips and anchors] provided by manufacturer utilizing
recommended fasteners.
Horizontal Joinery: Working from base to top of metal wall backup panel system
installation, lap upper panel over lower panel to form a weather tight joint oriented to
allow gravity drainage.
Vertical Joinery:
a.
b.
c.
3.3
Install vertical butt joints tight with no gap, set against continuous supports.
Set panel ends in continuous bead of non-curing butyl sealant as indicated in
manufacturer's installation details.
Seal butt joints between adjacent panels with a continuous strip of self-adhering
flashing at bottom row of panels and where additionally recommended by
manufacturer or architect.
ERECTION TOLERANCES
A.
3.4
Installation Tolerances: Align metal wall backup panel system within installed tolerance of 1/4
inch in 20 feet (6 mm in 6.1 m), noncumulative, on level and plumb and location lines as
indicated and within 1/8 inch (3 mm) offset of adjoining faces and of alignment of matching
profiles.
SECONDARY FRAMING INSTALLATION
Specifier: Retain article if secondary framing is part of work of this Section.
A.
3.5
Secondary Metal Subgirt Framing: Install secondary metal framing components to tolerances
indicated, as shown on approved shop drawings. Install secondary metal framing and other
metal panel supports per ASTM C1007 and metal wall panel manufacturer's recommendations.
METAL WALL PANEL INSTALLATION
A.
General: Install metal wall panels in accordance with approved shop drawings and
manufacturer's recommendations. Install metal wall panels in orientation, sizes, and locations
indicated. Anchor metal wall panels and other components securely in place. Provide for
thermal and structural movement
B.
Attach panels to metal framing using recommended clips, screws, fasteners, sealants, and
adhesives indicated on approved shop drawings.
CENTRIA
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1.
2.
3.
4.
C.
3.6
Fasteners for Steel Wall Panels: Stainless-steel for exterior locations and locations
exposed to moisture; carbon steel for interior use only.
Fasten metal wall panels to supports with concealed clips at each joint at location,
spacing, and with fasteners recommended by manufacturer. Install clips to supports with
self-tapping fasteners.
Provide weatherproof escutcheons for pipe and conduit penetrating exterior walls.
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.
Joint Sealers: Install joint sealants where indicated on approved shop drawings.
ACCESSORY INSTALLATION
A.
General: Install metal wall panel accessories with positive anchorage to building and provide for
thermal expansion. Coordinate installation with flashings and other components.
1.
2.
3.
4.
5.
3.7
Install related flashings and sheet metal trim per requirements of Division 07 Section
"Sheet Metal Flashing and Trim."
Install components required for a complete metal wall panel assembly, including trim,
copings, corners, lap strips, flashings, sealants, fillers, closure strips, and similar items.
Comply with performance requirements and manufacturer's written installation
instructions.
Provide concealed fasteners except where noted on approved shop drawings.
Set units true to line and level as indicated.
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.
3.8
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
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