USACE / NAVFAC / AFCESA / NASA UFGS-07 42 13 (January 2008)
-------------------------------------
Preparing Activity: NAVFAC Superseding
UFGS-07 40 00.00 40 (July 2007)
UFGS-07 42 13 (April 2006)
UFGS-07 46 19.00 40 (July 2007)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2009
SECTION 07 42 13
METAL WALL PANELS
01/08
NOTE: This guide specification covers the requirements for both factory color
and mill finish aluminum or steel non-structural metal wall panels.
Edit this guide specification for project specific requirements by adding, deleting,
or revising text. For bracketed items, choose applicable items(s) or insert
appropriate information.
Remove information and requirements not required in respective project, whether
or not brackets are present.
Comments and suggestions on this guide specification are welcome and should
be directed to the technical proponent of the specification. A listing of technical
proponents, including their organization designation and telephone number, is
on the Internet.
Recommended changes to a UFGS should be submitted as a Criteria Change Request
(CCR).
This guide specification includes tailoring options for NAVFAC and USACE,.
Selection or deselection of a tailoring option will include or exclude that
option in the section, but editing the resulting section to fit the project
is still required.
NOTE: This section does not include light gage siding for temporary construction,
housing, or pre-engineered metal buildings, or decorative wall panels.
Coordinate this section with other system components specifications such as
framing, insulation and sheet metal flashing. Also coordinate with applicable
Unified Facilities Criteria as it relates to the specific project.
PART 1 GENERAL
1.1 REFERENCES
NOTE: This paragraph is used to list the publications cited in the text of
the guide specification. The publications are referred to in the text by basic
designation only and listed in this paragraph by organization, designation,
date, and title.
Use the Reference Wizard's Check Reference feature when you add a RID outside
of the Section's Reference Article to automatically place the reference in the
Reference Article. Also use the Reference Wizard's Check Reference feature
to update the issue dates.
References not used in the text will automatically be deleted from this section
of the project specification when you choose to reconcile references in the
publish print process.
The publications listed below form a part of this specification to the extent referenced. The publications are
referred to within the text by the basic designation only.
[ALUMINUM ASSOCIATION (AA)AA ADM1(2005; Errata 2005) Aluminum Design ManualAA ASD1(2006; Errata 2007) Aluminum Standards and Data][AMERICAN ARCHITECTURAL MANUFACTURERS ASSOCIATION (AAMA)AAMA 501.1(2005) Methods of Test for Exterior Walls][AMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC)AISC 341(2005; Supp 2005) Seismic Provisions for Structural Steel Buildings][AMERICAN IRON AND STEEL INSTITUTE (AISI)AISI SG03-3(2002) Cold-Formed Steel Design Manual SetAISI/COS/NASPEC(2001, Supplement 2004) North American Specification for the Design of Cold-Formed Steel Structural Members][AMERICAN SOCIETY OF CIVIL ENGINEERS (ASCE)ASCE/SEI 7-05(2006) Minimum Design Loads for Buildings and Other Structures, Including Supplement No. 1][AMERICAN WELDING SOCIETY (AWS)AWS A5.1/A5.1M(2004; Errata 2004) Carbon Steel Electrodes for Shielded Metal Arc WeldingAWS D1.1/D1.1M(2008) Structural Welding Code - SteelAWS D1.2/D1.2M(2008) Structural Welding Code - Aluminum][ASTM INTERNATIONAL (ASTM)ASTM A 1008/A 1008M(2008a) Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake HardenedASTM A 123/A 123M(2008) Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel ProductsASTM A 36/A 36M(2008) Standard Specification for Carbon Structural SteelASTM A 424(2006) Standard Specification for Steel Sheet for Porcelain EnamelingASTM A 463/A 463M(2006) Standard Specification for Steel Sheet, Aluminum-CoatedASTM A 606(2004) Standard Specification for Steel Sheet and Strip, High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, with Improved Atmospheric Corrosion ResistanceASTM A 653/A 653M(2008) Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip ProcessASTM A 755/A 755M(2003; R 2008) Standard Specification for Steel Sheet, Metallic Coated by the Hot-Dip Process and Prepainted by the Coil-Coating Process for Exterior Exposed Building ProductsASTM A 780(2001; R 2006) Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized CoatingsASTM A 792/A 792M(2008) Standard Specification for Steel Sheet, 55% Aluminum-Zinc Alloy-Coated by the Hot-Dip ProcessASTM A 924/A 924M(2008a) Standard Specification for General Requirements for Steel Sheet, Metallic-Coated by the Hot-Dip ProcessASTM B 117(2007a) Standing Practice for Operating Salt Spray (Fog) ApparatusASTM B 209(2007) Standard Specification for Aluminum and Aluminum-Alloy Sheet and PlateASTM B 209M(2007) Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate (Metric)ASTM C 286(1999; 2004) Standard Terminology Relating to Porcelain Enamel and Ceramic-Metal SystemsASTM C 920(2008) Standard Specification for Elastomeric Joint SealantsASTM D 1056(2007) Standard Specification for Flexible Cellular Materials - Sponge or Expanded RubberASTM D 1308(2002; R 2007) Effect of Household Chemicals on Clear and Pigmented Organic FinishesASTM D 1654(2008) Evaluation of Painted or Coated Specimens Subjected to Corrosive EnvironmentsASTM D 1667(2005) Flexible Cellular Materials - Poly (Vinyl Chloride) Foam (Closed-Cell)ASTM D 2244(2007) Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color CoordinatesASTM D 2247(2002) Testing Water Resistance of Coatings in 100% Relative HumidityASTM D 2794(1993; R 2004) Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact)ASTM D 3359(2008) Measuring Adhesion by Tape TestASTM D 3363(2005) Film Hardness by Pencil TestASTM D 4214(2007) Standard Test Method for Evaluating the Degree of Chalking of Exterior Paint FilmsASTM D 4587(2005) Standard Practice for Fluorescent UV-Condensation Exposures of Paint and Related CoatingsASTM D 522(1993a; R 2008) Mandrel Bend Test of Attached Organic CoatingsASTM D 523(2008) Standard Test Method for Specular GlossASTM D 5894(2005) Cyclic Salt Fog/UV Exposure of Painted Metal, (Alternating Exposures in a Fog/Dry Cabinet and a UV/Condensation Cabinet)ASTM D 610(2008) Evaluating Degree of Rusting on Painted Steel SurfacesASTM D 714(2002e1) Evaluating Degree of Blistering of PaintsASTM D 822(2001; R 2006) Filtered Open-Flame Carbon-Arc Exposures of Paint and Related CoatingsASTM D 968(2005e1) Abrasion Resistance of Organic Coatings by Falling AbrasiveASTM E 1592(2005) Structural Performance of Sheet Metal Roof and Siding Systems by Uniform Static Air Pressure DifferenceASTM E 283(2004) Determining the Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors Under Specified Pressure Differences Across the SpecimenASTM E 331(2000) Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure DifferenceASTM E 84(2008a) Standard Test Method for Surface Burning Characteristics of Building MaterialsASTM G 23(1996) Operating Light-Exposure Apparatus (Carbon-Arc Type) With and Without Water for Exposure of Nonmetallic Materials][METAL BUILDING MANUFACTURERS ASSOCIATION (MBMA)MBMA MBSM(2002) Metal Building Systems Manual][NATIONAL ASSOCIATION OF ARCHITECTURAL METAL MANUFACTURERS (NAAMM)NAAMM AMP 500(2006) Metal Finishes Manual][PORCELAIN ENAMEL INSTITUTE (PEI)PEI 1001(1996) Specification for Architectural Porcelain Enamel (ALS-100)PEI CG-3(2005) Color Guide for Architectural Porcelain Enamel][SHEET METAL AND AIR CONDITIONING CONTRACTORS' NATIONAL ASSOCIATION (SMACNA)SMACNA 1793(2006) Architectural Sheet Metal Manual, Sixth Edition, Second Printing][THE SOCIETY FOR PROTECTIVE COATINGS (SSPC)SSPC Paint 12(1982; E 2000) Paint Specification No. 12 Cold-Applied Asphalt Mastic (Extra Thick Film)][U.S. NAVAL FACILITIES ENGINEERING COMMAND (NAVFAC)NAVFAC A-A-50570(1997) Paint, Water-Borne, Acrylic Or Modified Acrylic, Semigloss, For Metal Surfaces][UNDERWRITERS LABORATORIES (UL)UL 580(2006) Tests for Uplift Resistance of Roof AssembliesUL Bld Mat Dir(2008) Building Materials Directory]1.2 DEFINITIONS
Metal Wall Panel: Metal wall panels, attachment system components and accessories necessary for a complete weather-tight
wall system.
1.3 DESCRIPTION OF WALL PANEL SYSTEM
NOTE: Coordinate with Part 2 materials specification.
In the first sentence, select finish type, metal type, attachment type and delete
other options.
In the second sentence, select a combination of options as necessary to describe
the generic profile required. Include the last bracketed option of the second
sentence when generic profile is shown on drawings. Show panel profile and
dimensions on the drawings when a particular aesthetic appearance is desired.
[Factory color finished, ][Mill finish ][galvanized ][galvalume ][aluminum ]metal wall panel system with[ concealed
fastening][ exposed fastener] attachment. Panel profile must be[ embossed][ recessed seam lock][ flush face][
smooth face][ recessed bead][ raised bead][ striated][ square ribbed][ beaded rib][ roll lock seam][ snap lock
seam][ box rib][ corrugated][ standing seam][ batten seam][ and with stiffening ribs in the flat of the panel][
as shown on drawings].
1.3.1 Metal Wall Panel General Performance
Comply with performance requirements, conforming to AISI/COS/NASPEC, without failure due to defective manufacture,
fabrication, installation, or other defects in construction. Wall panels and accessory components must conform
to the following standards:
ASTM A 1008/A 1008M
ASTM A 123/A 123M
ASTM A 36/A 36M
[ASTM A 424, ASTM C 286, PEI 1001, PEI CG-3 for Porcelain and Ceramic Enameling
]ASTM A 653/A 653M
[ASTM A 463/A 463M for aluminum coated steel sheet
]ASTM A 606
[ASTM A 755/A 755M for metallic coated steel sheet for exterior coil pre-painted applications.
][ASTM A 780 for repair of damage or uncoated areas of hot-dipped galvanized coating.
][ASTM A 924/A 924M for metallic coated steel sheet
]ASTM D 522 for applied coatings
UL Bld Mat Dir
1.3.2 Structural Performance
Maximum calculated fiber stress must not exceed the allowable value in the AISI or AA manuals; a one third
overstress for wind is allowed. Midspan deflection under maximum design loads is limited to L/180. Contract
drawings show the design wind loads and the extent and general assembly details of the metal siding. Contractor
must provide design for members and connections not shown on the drawings. Siding panels and accessories must
be the products of the same manufacturer.
Provide metal wall panel assemblies complying with the load and stress requirements in accordance with ASTM E 1592
. Wind Load force due to wind action governs the design for panels.
Wall systems and attachments are to resist the wind loads as determined by UL 580 and ASCE/SEI 7-05 in the geographic
area where the construction will take place, in pounds per square foot. Submit [five][_____] copies of wind
load tests and seismic tests to the Contracting Officer.
[Provide metal wall panel assembly for seismic conditions complying with the applicable requirements of AISC 341
.
]
1.3.3 Air Infiltration
Air leakage must conform to the limits through the wall assembly area when tested according to ASTM E 283.
1.3.4 Water Penetration Under Static Pressure
No water penetration when tested according to ASTM E 331.
1.3.5 Water Penetration Under Dynamic Pressure
No evidence of water leakage when tested according to AAMA 501.1.
1.4 SUBMITTALS
NOTE: Review Submittal Description (SD) definitions in Section 01 33 00 SUBMITTAL
PROCEDURES and edit the following list to reflect only the submittals required
for the project. Submittals should be kept to the minimum required for adequate
quality control.
A “G” following a submittal item indicates that the submittal requires Government
approval. Some submittals are already marked with a “G”. Only delete an existing
“G” if the submittal item is not complex and can be reviewed through the Contractor’s
Quality Control system. Only add a “G” if the submittal is sufficiently important
or complex in context of the project.
For submittals requiring Government approval on Army projects, a code of up
to three characters within the submittal tags may be used following the "G"
designation to indicate the approving authority. Codes for Army projects using
the Resident Management System (RMS) are: "AE" for Architect-Engineer; "DO"
for District Office (Engineering Division or other organization in the District
Office); "AO" for Area Office; "RO" for Resident Office; and "PO" for Project
Office. Codes following the "G" typically are not used for Navy, Air Force,
and NASA projects.
Choose the first bracketed item for Navy, Air Force and NASA projects, or choose
the second bracketed item for Army projects.
Government approval is required for submittals with a "G" designation; submittals not having a "G" designation
are [for Contractor Quality Control approval.][for information only. When used, a designation following the
"G" designation identifies the office that will review the submittal for the Government.] Submit the following
in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:
SD-01 Preconstruction Submittals
Submit Documentation for the following items:
Qualification of Manufacturer[; G][; G, [_____]]
Qualification of Installer[; G][; G, [_____]]
[Qualification of Welders[; G][; G, [_____]]]
Sample Warranty[; G][; G, [_____]]
SD-02 Shop Drawings
Installation Drawings [; G][; G, [_____]]
SD-03 Product Data
Submit Manufacturer's data indicating percentage of recycle material in wall panels to verify
sustainable acquisition[; G][; G, [_____]] compliance.
Submit Manufacturer's catalog data for the following items:
Factory Color Finish
Closure Materials
Pressure Sensitive Tape
Sealants and Caulking
Galvanizing Repair Paint
Enamel Repair Paint
Aluminized Steel Repair Paint
Accessories
SD-04 Samples
Submit as required each of the following samples:
Wall Panels, 30.5 cm12 inches long by actual panel width[; G][; G, [_____]]
Fasteners[; G][; G, [_____]]
Metal Closure Strips, 2.50 cm10 inches long of each type[; G][; G, [_____]]
Submit manufacturer's color charts and chips, approximately 4 by 4 inches, showing full range
of colors, textures and patterns available for wall panels with factory applied finishes.
SD-05 Design Data
As applicable, submit the following wind load design analysis[; G][; G, [_____]] data, to include,
but not limited to:
wind speed
exposure category,co-efficient,importance factor
type of facility
negative pressures for each zone
methods and requirements of attachment
SD-06 Test Reports
Submit test reports for the following in accordance with the referenced articles in this section.
Leakage Tests[; G][; G, [_____]]
Wind Load Tests[; G][; G, [_____]]
Coatings and Base Metal Tests[; G][; G, [_____]]
Chalking Tests[; G][; G, [_____]]
[Seismic Tests[; G][; G, [_____]]]
SD-07 Certificates
Submit certificates for the following items showing conformance with referenced standards contained
in this section:
Coil Stock[; G][; G, [_____]]
Fasteners[; G][; G, [_____]]
Galvanizing Repair Paint[; G][; G, [_____]]
Enamel Repair Paint[; G][; G, [_____]]
SD-08 Manufacturer's Instructions
Include detailed application instructions and standard manufacturer drawings altered as required
by these specifications.
Installation of Wall panels[; G][; G, [_____]]
SD-09 Manufacturer's Field Reports
Submit [_____] bound copies of the Manufacturer's Field Reports[; G][; G, [_____]]
SD-11 Closeout Submittals
Warranty[; G][; G, [_____]]
Maintenance Instructions[; G][; G, [_____]]
[20 year "No Dollar Limit" warranty for labor and material]
1.5 QUALITY ASSURANCE
1.5.1 Pre-Installation Conference
Upon notification of submittal receipt and approval by the Contracting Officer; and prior to the commencement
of the work, the Contractor must attend a pre-installation conference to review the following:
a. Drawings and Specifications.
b. Qualification of Installer[, Qualification of Welders].
c. sustainable acquisition
d. Sample Warranty
e. Sample wall panels, 30.5 cm12 inches long by actual panel width
f. Sample metal closure strips, 2.50 cm10 inches long of each type
g. Color charts and chips
h. Coatings and base metal tests, chalking tests
i. Construction schedule, availability of materials, Installer's personnel, equipment and facilities
required to progress with the work without delay.
j. Methods and procedures related to installation of wall panels, including manufacturer's written instructions.
Explicitly identify in writing, differences between manufacturer's instructions and the specified requirements.
k. Support conditions for compliance with requirements, including alignment between and attachment to
structural members.
l. Flashing, special siding details, wall penetrations, openings, and condition of other construction
that will affect metal wall panels.
m. Governing regulations and requirements for insurance, certificates, and tests and inspections if
applicable.
n. Temporary protection requirements for metal wall panel assembly during and after installation.
o. Wall panel observation and repair procedures after metal wall panel installation. Provide detailed
written instructions including copies of Material Safety Data Sheets for maintenance and repair materials,
and manufacturer's maintenance instructions.
1.5.1.1 Installation Drawings
Installation shop drawings for wall 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.
1.5.1.2 Wind Load Design Analysis
Wind design analysis must include wall plan delineating dimensions and attachment patterns for each zone. Wind
design analysis must be prepared and sealed by Licensed Project Engineer in the geographic area where the construction
will take place.
1.5.2 Manufacturer's Technical Representative
The representative must have authorization from manufacturer to approve field changes and be thoroughly familiar
with the products and installations in the geographical area where construction will take place.
1.5.3 Qualification of Manufacturer
Certify that metal wall panel system manufacturer has a minimum of five (5) years experience in manufacturing
metal wall system and accessory products.
Manufacturer must also provide engineering services by an authorized engineer; currently licensed in the geographical
area where construction will take place, having a minimum of four (4) years experience as an engineer knowledgeable
in wind load design analysis, protocols and procedures per MBMA MBSM, "Metal Building Systems Manual"; ASCE/SEI 7-05
, and ASTM E 1592[ and seismic design conforming to AISC 341].
Provide certified engineering calculations, using the products submitted, for Wind load requirements in accordance
with ASCE/SEI 7-05.
1.5.3.1 Manufacturer's Certificates
Also provide the following certifications from the manufacturer:
Coil Stock
Fasteners
Galvanizing Repair Paint
Enamel Repair Paint
Submit certification from coil stock manufacturer or supplier that the machinery used will form the provided
coil stock without warping, waviness, or rippling that is not a part of the panel profile, and without damage,
abrasion or marring of the finish coating.
Provide evidence that products used within this specification are manufactured in the United States.
1.5.4 Certified Qualification of Installation Contractor
The installation contractor must be approved and certified by the metal wall panel manufacturer prior to beginning
the installation of the metal wall panel system. Subcontracting by Certified Contractor for the metal wall panel
work is not permitted.
[1.5.4.1 Qualifications for Welding Work
Welding procedures must conform to AWS A5.1/A5.1M, AWS D1.1/D1.1Mfor steel or AWS D1.2/D1.2M for aluminum.
]1.5.5 Single Source
Obtain each type of metal wall panels, clips, closure materials and other accessories from the standard products
of the single source from a single manufacturer to operate as a complete system for the intended use.
1.6 DELIVERY, HANDLING, AND STORAGE
Deliver and protect package components, sheets, metal wall panels, and other manufactured items to prevent damage
or deformation during transportation and handling.
Unload, store, and erect metal wall panels in a manner to prevent bending, warping, twisting, and surface damage.
Stack and store metal wall panels horizontally on platforms or pallets, covered with suitable weather-tight and
ventilated covering to ensure dryness, with positive slope for drainage of water. Do not store metal wall panels
in contact with other materials that might cause staining, denting, or other surface damage.
Retain strippable protective covering on metal wall panel until actual installation.
1.7 PROJECT CONDITIONS
1.7.1 Field Measurements
Verify locations of wall framing and opening dimensions by field measurements before metal wall panel fabrication
and indicate measurements on Shop Drawings.
1.7.2 Weather Limitations
Proceed with installation preparation only when existing and forecasted weather conditions permit Work to proceed
without water entering into wall system or building.
1.8 WARRANTY
Warranty must conform to the Sample Warranty as reviewed and approved by the Contracting Officer at the Pre-Installation
Conference.
1.8.1 20 Year 'No Dollar Limit Warranty for Labor and Material
Furnish manufacturer's no-dollar-limit warranty for the metal wall panel system. The warranty period is to be
no less than twenty (20) years from the date of Government acceptance of the work. The warranty is to be issued
directly to the Government. The warranty is to provide that if within the warranty period the metal wall panel
system shows evidence of corrosion, perforation, rupture or excess weathering due to deterioration of the wall
panel system resulting from defective materials and correction of the defective workmanship is to be the responsibility
of the metal wall panel system manufacturer. Repairs that become necessary because of defective materials and
workmanship while metal wall panel system is under warranty are to be performed within 24 hours after notification,
unless additional time is approved by the Contracting Officer. Failure to perform repairs within 24 hours of
notification will constitute grounds for having emergency repairs performed by others and not void the warranty.
PART 2 PRODUCTS
2.1 FABRICATION
Fabricate and finish metal wall panels and accessories at the factory to greatest extent possible, by manufacturer's
standard procedures and processes and as necessary to fulfill indicated performance requirements. Comply with
indicated profiles and with dimensional and structural requirements.
Provide panel profile, including major ribs and intermediate stiffening ribs, if any, for full length of panel.
Fabricate metal wall panel side laps with factory-installed captive gaskets or separator strips that provide
a tight seal and prevent metal-to-metal contact, in a manner that will seal weather-tight and minimize noise
from movements within panel assembly.
2.1.1 Sheet Metal Accessories
Fabricate flashing and trim to comply with recommendations in SMACNA 1793 that apply to the design, dimensions,
metal, and other characteristics of item indicated:
a. Form exposed sheet metal accessories that are without excessive oil canning, buckling, and tool marks
and that are true to line and levels indicated, with exposed edges folded back to form hems.
b. End Seams: fabricate nonmoving end seams with flat-lock seams. Form seams and seal with epoxy seam
sealer. Rivet joints for additional strength.
c. Sealed Joints: form non-expansion but movable joints in metal to accommodate elastomeric sealant
to comply with SMACNA 1793.
d. Conceal fasteners and expansion provisions where possible. Exposed fasteners are not allowed on
faces of accessories exposed to view.
e. Fabricate cleats and attachment devices of size and metal thickness recommended by SMACNA 1793 or
by metal wall panel manufacturer for application, but not less than thickness of metal being secured.
2.2 PANEL MATERIALS
2.2.1 Aluminum Sheet
Roll-form aluminum wall panels to the specified profile, with fy =[2.12][2.81][3.52][5.63] kscm[30][40][50][80]
ksi, [0.81][1.02][1.27] mm[.032"][.040"][.050"] thickness and depth as indicated. Material must be plumb and
true, and within the tolerances listed:
a. Aluminum Sheet conforming to ASTM B 209ASTM B 209M, AA ASD1 and AA ADM1.
b. Individual panels must be have continuous length to cover the entire length of any wall area with
no joints or seams and formed without warping, waviness, or ripples that are not part of the panel profile
and free of damage to the finish coating system.
c. Provide panels with thermal expansion and contraction consistent with the type of system specified.
[i. Profile and coverage to be a minimum height and width from manufacturer's standard for
the indicated wall area.
]
[ii. Profile to be a 3.81 cm1-1/2 inch high rib at 30.48 cm12 inches o.c. with small stiffening
ribs, 96.52cm38 inch overall width with 91.44 cm36 inch coverage and exposed fasteners.
]
[iii. Profile to be a 3.81 cm1-1/2 inch high rib at 18.29 cm7.2 inches o.c., 96.52cm38-7/8
inch overall width with 91.44 cm36 inch coverage and exposed fasteners.
]
[iv. Profile to be a 2.54 cm1 inch high rib at 10.16 cm4 inches o.c., 126.05 cm49-5/8 inch
overall width with [122][112] cm[48][44] inch coverage and exposed fasteners.
]
[v. Profile to be a 2.54 cm1 inch high rib at 20.32 cm8 inches o.c., 105.73 cm41-5/8 inch overall
width with 101.640 inch coverage and exposed fasteners.
]
[vi. Profile to be a 4.45 cm1-3/4 inch high V-beam rib at 12.7 cm5 inches o.c., 114 cm44-7/8
inch overall width with 106.7 cm42 inch coverage and exposed fasteners.
]
[vii. Profile to be a 2.22 cm7/8 inch high corrugated rib at 5.08 cm2 inches o.c., 96.52cm38-7/8
inch overall width with 91.44 cm36 inch coverage and exposed fasteners.
]
[viii. Profile to be a 7.62 cm3 inch high standing seam, 60.96 cm24 inch coverage, factory-caulked
and mechanical crimping or snap-together seams with concealed clips and fasteners.
]
[ix. Profile to be a [2.54][4.45][5.08][6.35] cm[1][1-3/4][2][2-1/2] inch high standing seam,
[30.5][40.64][45.72] cm[12][16][18] inch coverage, with mechanical crimping or snap-together
seams with concealed clips and fasteners.
]
[x. [Smooth, flat ][Embossed ]surface texture.
]
2.2.2 Steel Sheet
Roll-form steel wall panels to the specified profile, with fy = [2.12][2.81][3.52][5.63] kscm[30][40][50][80]
ksi, [26] [24] [22] [20] [18] gauge and depth as indicated. Material must be plumb and true, and within the
tolerances listed:
[a. Galvanized Steel Sheet conforming to ASTM A 653/A 653M and AISI SG03-3.
]
[b. Aluminum-Zinc Alloy-coated Steel Sheet conforming to ASTM A 792/A 792M and AISI SG03-3.
]
c. Individual panels must be continuous length to cover the entire length of any unbroken wall area
with no joints or seams and formed without warping, waviness, or ripples that are not part of the panel
profile and free of damage to the finish coating system.
d. Provide panels with thermal expansion and contraction consistent with the type of system specified.
[i. Profile and coverage to be a minimum height and width from manufacturer's standard for
the indicated wall area.
]
[ii. Profile to be a 3.81 cm1-1/2 inch high rib at 30.48 cm12 inches o.c. with small stiffening
ribs, 96.52cm38 inch overall width with 91.44 cm36 inch coverage and exposed fasteners.
]
[iii. Profile to be a 3.81 cm1-1/2 inch high rib at 18.29 cm7.2 inches o.c., 96.52cm38-7/8
inch overall width with 91.44 cm36 inch coverage and exposed fasteners.
]
[iv. Profile to be a 2.54 cm1 inch high rib at 10.16 cm4 inches o.c., 126.05 cm49-5/8 inch
overall width with [122][112] cm[48][44] inchcoverage and exposed fasteners.
]
[v. Profile to be a 2.54 cm1 inch high rib at 20.32 cm8 inches o.c., 105.73 cm41-5/8 inch overall
width with 101.640 inch coverage and exposed fasteners.
]
[vi. Profile to be a 2.22 cm7/8 inch high corrugated rib at 5.08 cm2 inches o.c., 96.52cm38-7/8
inch overall width with 91.44 cm36 inch coverage and exposed fasteners.
]
[vii. Profile to be a 7.62 cm3 inch high standing seam, 60.96 cm24 inch coverage, factory-caulked
and mechanical crimping or snap-together seams with concealed clips and fasteners.
]
[viii. Profile to be a [2.54][4.45][5.08][6.35] cm[1][1-3/4][2][2-1/2] inch high standing seam,
[30.5][40.64][45.72] cm[12][16][18] inch coverage, with mechanical crimping or snap-together
seams with concealed clips and fasteners.
]
[ix. [Smooth, flat] [Embossed] Surface Texture.
]
2.2.3 Factory Color Finish
Comply with NAAMM AMP 500 for recommendations for applying and designating finishes. Noticeable variations in
same piece are not acceptable. Variations in appearance of adjoining components are acceptable if they are within
the range of approved samples and are assembled or installed to minimize contrast.
All panels are to receive a factory-applied [polyvinylidene fluoride] [Kynar 500/Hylar 5000] [_____] finish consisting
of a baked-on top-coat with a manufacturer's recommended prime coat conforming to the following:
2.2.3.1 Metal Preparation
Carefully prepare all metal surface for painting on a continuous process coil coating line by alkali cleaning,
hot water rinsing, application of chemical conversion coating, cold water rinsing, sealing with acid rinse, and
thorough drying.
2.2.3.2 Prime Coating
Apply a base coat of epoxy paint, specifically formulated to interact with the top-coat, to the prepared surfaces
by roll coating to a dry film thickness of 0.20 + 0.05 mils. Prime coat must be oven cured prior to application
of finish coat.
2.2.3.3 Exterior Finish Coating
Roll coat the finish coating over the primer by roll coating to dry film thickness of 0.80 + 5 mils (3.80 + 0.50
mils for Vinyl Plastisol) for a total dry film thickness of 1.00 + 0.10 mils (4.00 + 0.10 mils for Vinyl Plastisol).
Oven-cure finish coat.
2.2.3.4 Interior Finish Coating
Apply a wash-coat on the reverse side over the primer by roll coating to a dry film thickness of 0.30 + 0.05
mils for a total dry film thickness of 0.50 + 0.10 mils. Oven-cured the wash coat.
2.2.3.5 Color
Provide exterior finish color as [selected by the Contracting Officer from the manufacturer's standard color
chart][as specified].
2.2.3.6 Physical Properties
Coating must conform to the industry and manufacturer's standard performance criteria as listed by the following
certified test reports:
General: SSPC Paint 12, NAVFAC A-A-50570, ASTM D 5894, and ASTM D 4587.
Abrasion: ASTM D 968
Adhesion: ASTM D 3359
Chalking: ASTM D 4214
Chemical Pollution: ASTM D 1308
Color Change and Conformity: ASTM D 2244
Creepage: ASTM D 1654
Cyclic Corrosion Test: ASTM D 5894
Flame Spread: ASTM E 84
Flexibility: ASTM D 522
Formability: ASTM D 522
Gloss at 60 and 85 degrees: ASTM D 523
Humidity: ASTM D 2247 and ASTM D 714
Oxidation: ASTM D 610
Pencil Hardness: ASTM D 3363
Reverse Impact: ASTM D 2794
Salt Spray: ASTM B 117
Weatherometer: ASTM G 23 and ASTM D 822
2.3 MISCELLANEOUS METAL FRAMING
Cold-formed metallic-coated steel sheet conforming to ASTM A 653/A 653M and specified in Section 05 40 00 COLD-FORMED
METAL FRAMING unless other wise indicated.
2.3.1 Fasteners for Miscellaneous Metal Framing
Type, material, corrosion resistance, size and sufficient length to penetrate the supporting member a minimum
of 2.54 cm1 inch with other properties required to fasten miscellaneous metal framing members to supporting members
and substrates in accordance with the wall panel manufacturer's and ASCE/SEI 7-05 requirements.
2.4 FASTENERS
2.4.1 General
2.4.1.1 Exposed Fasteners
Provide corrosion resistant fasteners for wall panels, made of coated steel, aluminum, [300 - series corrosion
resisting stainless steel][305 - series corrosion resisting stainless steel], or nylon capped steel compatible
with the sheet panel or flashing and of a type and size recommended by the manufacturer to meet the performance
requirements and design loads.
Fasteners for accessories must be the manufacturer's standard. Provide an integral metal washer matching the
color of attached material with compressible sealing EPDM gasket approximately 0.24 cm3/32 inch thick.
2.4.1.2 Hidden Fasteners
Provide corrosion resistant fasteners recommended by the manufacturer to meet the performance requirements and
design loads.
2.4.1.3 Screws
Screws to be corrosion resistant coated steel, aluminum and/or [300 - series][305 - series] stainless steel being
the type and size recommended by the manufacturer to meet the performance requirements.
2.4.1.4 Rivets
Rivets to be closed-end type, corrosion resistant coated steel, aluminum or stainless steel where watertight
connections are required.
2.4.1.5 Attachment Clips
Fabricate clips from steel hot-dipped galvanized in accordance with ASTM A 653/A 653M, Z275 G 90 or Series 300
stainless steel. Size, shape, thickness and capacity as required meeting the insulation thickness and design
load criteria specified.
2.5 ACCESSORIES
2.5.1 General
All accessories must be compatible with the metal wall panels. Sheet metal flashing, trim, metal closure strips,
caps and similar metal accessories must not be less than the minimum thickness specified for the wall panels.
Exposed metal accessories/finishes to match the panels furnished, except as otherwise indicated. Molded foam
rib, ridge and other closure strips must be non-absorbent closed-cell or solid-cell synthetic rubber or pre-molded
neoprene to match configuration of the panels.
2.5.2 Rubber Closure Strips
Provide closed-cell, expanded cellular rubber conforming to ASTM D 1056 and ASTM D 1667; extruded or molded to
the configuration of the specified wall panel and in lengths supplied by the wall panel manufacturer.
2.5.3 Metal Closure Strips
Provide factory fabricated[ aluminum][ steel] closure strips to be the same[ gauge][ thickness], color, finish
and profile of the specified wall panel.
2.5.4 Joint Sealants
2.5.4.1 Sealants and Caulking
Provide approved gun type sealants for use in hand- or air-pressure calking guns at temperatures above 40 degrees
F 4 degrees C (or frost-free application at temperatures above 10 degrees F minus 12 degrees C) with minimum
solid content of 85 percent of the total volume. Sealants must dry with a tough, durable surface skin which
permit remaining soft and pliable underneath, providing a weather-tight joint. No migratory staining is permitted
on painted or unpainted metal, stone, glass, vinyl, or wood.
Prime all joints receiving sealants with a compatible one-component or two-component primer as recommended by
the wall panel manufacturer.
2.5.4.2 Shop-Applied
Sealant for shop-applied caulking must be an approved gun grade, non-sag one component polysulfide or silicone
conforming to ASTM C 920, Type II, and with a curing time to ensure the sealant's plasticity at the time of field
erection.
2.5.4.3 Field-Applied
Sealant for field-applied caulking must be an approved gun grade, non-sag one component polysulfide or two-component
polyurethane with an initial maximum Shore A durometer hardness of 25, and conforming to ASTM C 920, Type II.
Color to match panel colors.
2.5.4.4 Pressure Sensitive Tape
Provide pressure sensitive tape sealant, 100% solid with a release paper backing; permanently elastic, non-sagging,
non-toxic and non-staining as approved by the wall panel manufacturer.
2.6 SHEET METAL FLASHING AND TRIM
2.6.1 Fabrication
Shop fabricate sheet metal flashing and trim where practicable to comply with recommendations in SMACNA 1793
that apply to design, dimensions, metal, and other characteristics of item indicated. Obtain field measurements
for accurate fit before shop fabrication.
Fabricate sheet metal flashing and trim without excessive oil canning, buckling, and tool marks and true to line
and levels indicated, with exposed edges folded back to form hems.
2.7 REPAIR OF FINISH PROTECTION
Repair paint for color finish enameled wall panel must be compatible paint of the same formula and color as the
specified finish furnished by the wall panel manufacturer. Provide [_____][ pints][ quarts] of [aluminized steel
repair paint][repair paint matching the specified wall panels].
PART 3 EXECUTION
3.1 EXAMINATION
Examine substrates, areas, and conditions, with Installer present, for compliance with requirements for installation
tolerances, metal wall panel supports, and other conditions affecting performance of the Work.
Examine primary and secondary wall framing to verify that rafters, purlins, angles, channels, and other structural
panel support members and anchorages have been installed within alignment tolerances required by metal wall panel
manufacturer, UL, ASTM, ASCE/SEI 7-05 and as required for the geographical area where construction will take place.
Examine solid wall sheathing to verify that sheathing joints are supported by framing or blocking and that installation
is within flatness tolerances required by metal wall panel manufacturer.
Examine roughing-in for components and systems penetrating metal wall panels to verify actual locations of penetrations
relative to seam locations of metal wall panels before metal wall panel installation.
Submit to the Contracting Officer a written report, endorsed by Installer, listing conditions detrimental to
performance of the Work. Proceed with installation only after unsatisfactory conditions have been corrected.
3.2 PREPARATION
Clean substrates of substances harmful to insulation, including removing projections capable of interfering with
insulation attachment. Miscellaneous framing installation, including sub-purlins, girts, angles, furring, and
other miscellaneous wall panel support members and anchorage must be according to metal wall panel manufacturer's
written instructions.
3.3 WALL PANEL INSTALLATION
Provide full length metal wall panels, from sill to eave as indicated, unless otherwise indicated or restricted
by shipping limitations. Anchor metal wall panels and other components of the Work securely in place, with provisions
for thermal and structural movement in accordance with MBMA MBSM.
Erect wall panel system in accordance with the approved erection drawings, the printed instructions and safety
precautions of the manufacturer.
Sheets are not to be subjected to overloading, abuse, or undue impact. Bent, chipped, or defective sheets shall
not be applied.
Sheets must be erected true and plumb and in exact alignment with the horizontal and vertical edges of the building,
securely anchored, and with the indicated eave, and sill.
Work is to allow for thermal movement of the wall panel, movement of the building structure, and to provide permanent
freedom from noise due to wind pressure.
Field cutting metal wall panels by torch is not permitted.
[3.3.1 Steel Wall Panels
Use stainless-steel fasteners for exterior surfaces and galvanized steel fasteners for interior surfaces.
][3.3.2 Aluminum Wall Panels
Use aluminum or stainless-steel fasteners for exterior surfaces and aluminum or galvanized steel fasteners for
interior surfaces.
][3.3.3 Anchor Clips
Anchor metal wall panels and other components of the Work securely in place, using manufacturer's approved fasteners
according to manufacturers' written instructions.
]3.3.4 Metal Protection
Where dissimilar metals will contact each other or corrosive substrates, protect against galvanic action by painting
contact surfaces with bituminous coating, by applying rubberized-asphalt underlayment to each contact surface,
or by other permanent separation as recommended by metal wall panel manufacturer.
3.3.5 Joint Sealers
Install gaskets, joint fillers, and sealants where indicated and where required for weatherproof performance
of metal wall panel assemblies. Provide types of gaskets, fillers, and sealants indicated or, if not indicated,
types recommended by metal wall panel manufacturer.
3.4 FASTENER INSTALLATION
Anchor metal wall panels and other components of the Work securely in place, using manufacturer's approved fasteners
according to manufacturers' written instructions.
3.5 FLASHING, TRIM AND CLOSURE INSTALLATION
3.5.1 General Requirements
Comply with performance requirements, manufacturer's written installation instructions, and SMACNA 1793. Provide
concealed fasteners where possible, and set units true to line and level as indicated. Install work with laps,
joints, and seams to form permanently watertight and weather resistant.
Install sheet metal work is to form weather-tight construction without waves, warps, buckles, fastening stresses
or distortion, and allow for expansion and contraction. Cutting, fitting, drilling, and other operations in
connection with sheet metal required to accommodate the work of other trades is to be performed by sheet metal
mechanics.
3.5.2 Metal Flashing
Install exposed metal flashing at building corners, sills and eaves, junctions between metal siding and walling.
Exposed metal flashing must be the same material, color, and finish as the specified metal wall panel.
Fasten flashing at a minimum of 20.3 cm8 inches on center, except where flashing is held in place by the same
screws that secure covering sheets.
Flashing is to be furnished in at least 2.44 m8 foot lengths. Exposed flashing is to have 2.54 cm1 inch locked
and blind-soldered end joints, and expansion joints at intervals of not more than 4.88 m16 feet.
Exposed flashing and flashing subject to rain penetration to be bedded in the specified joint sealant.
Isolate flashing which is in contact with dissimilar metals by means of the specified asphalt mastic material
to prevent electrolytic deterioration.
Form drips to the profile indicated, with the edge folded back 1/2 inch to form a reinforced drip edge.
3.5.3 Closures
Install metal closure strips at open ends of corrugated or ribbed pattern walls, and at intersection of wall
and wall unless open ends are concealed with formed eave flashing; and in other required areas.
Install mastic closure strips at intersection of the wall with metal walling; top and bottom of metal siding;
heads of wall openings; and in other required locations.
3.6 WORKMANSHIP
Make lines, arises, and angles sharp and true. Free exposed surfaces from visible wave, warp, buckle, and tool
marks. Fold back exposed edges neatly to form a 1.27 cm1/2 inch hem on the concealed side. Make sheet metal
exposed to the weather watertight with provisions for expansion and contraction.
Make surfaces to receive sheet metal plumb and true, clean, even, smooth, dry, and free of defects and projections
which might affect the application. For installation of items not shown in detail or not covered by specifications
conform to the applicable requirements of SMACNA 1793. Provide sheet metal flashing in the angles formed where
roof decks abut walls, curbs, ventilators, pipes, or other vertical surfaces and wherever indicated and necessary
to make the work watertight.
3.7 ACCEPTANCE PROVISIONS
3.7.1 Erection Tolerances
Erect metal wall panels straight and true with plumb vertical lines correctly lapped and secured in accordance
with the manufacturer's written instructions.
3.7.2 Leakage Tests
Finished application of metal wall panels are to be subject to inspection and test for leakage by request of
the Contracting Officer, Architect/Engineer. Conduct inspection and tests at no cost to the Government.
Inspection and testing is to be made promptly after erection to permit correction of defects and the removal
and replacement of defective materials.
3.7.3 Repairs to Finish
Scratches, abrasions, and minor surface defects of finish may be repaired with the specified repair materials.
Finished repaired surfaces must be uniform and free from variations of color and surface texture.
Repaired metal surfaces that are not acceptable to the project requirements and/or Contracting Officer are to
be immediately removed and replaced with new material.
3.7.4 Paint-Finish Metal Siding
Paint-finish metal siding will be tested for color stability by the Contracting Officer during the manufacturer's
specified guarantee period.
Panels that indicate color changes, fading, or surface degradation, determined by visual examination, must be
removed and replaced with new panels at no expense to the Government.
New panels will be subject to the specified tests for an additional year from the date of their installation.
3.8 FIELD QUALITY CONTROL
3.8.1 Construction Monitoring
Make visual inspections as necessary to ensure compliance with specified requirements. Additionally, verify the
following:
a. Materials comply with the specified requirements.
b. All materials are properly stored, handled and protected from damage. Damaged materials
are removed from the site.
c. Framing and substrates are in acceptable condition, in compliance with specification, prior
to application of wall panels.
d. Panels are installed without buckles, ripples, or waves and in uniform alignment and modulus.
e. Side laps are formed, sealed, fastened or seam locked as required.
f. The proper number, type, and spacing of attachment clips and fasteners are installed.
g. Installer adheres to specified and detailed application parameters.
h. Associated flashing and sheet metal are installed in a timely manner in accord with the
specified requirements.
Provide [five][_____] bound copies of Manufacturer's Field Reports to the Contracting Officer [two][_____] weeks
prior to project close-out.
3.9 CLEAN-UP AND DISPOSAL
Clean all exposed sheet metal work at completion of installation. Remove metal shavings, filings, nails, bolts,
and wires from work area. Remove grease and oil films, excess sealants, handling marks, contamination from steel
wool, fittings and drilling debris and scrub the work clean. Exposed metal surfaces must be free of dents, creases,
waves, scratch marks, solder or weld marks, and damage to the finish coating.
Collect and place scrap/waste materials in containers. Promptly dispose of demolished materials. Do not allow
demolished materials to accumulate on-site; transport demolished materials from government property and legally
dispose of them.