07 42 13.pdf

CBP IDC-DLC SPECIFICATIONS

HARPERS FERRY, WV 09/16/2022

SECTION 07 42 13

METAL WALL PANELS

05/11, CHG 2: 02/18

PART 1 GENERAL

1.1 REFERENCES

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.

AMERICAN ARCHITECTURAL MANUFACTURERS ASSOCIATION (AAMA)

AAMA 611 (2014) Voluntary Specification for Anodized Architectural Aluminum

AAMA 2603 (2020) Voluntary Specification, Performance Requirements and Test Procedures for Pigmented Organic Coatings on Aluminum Extrusions and Panels

AAMA 2605 (2020) Voluntary Specification, Performance Requirements and Test Procedures for Superior Performing Organic Coatings on Aluminum Extrusions and Panels

AMERICAN IRON AND STEEL INSTITUTE (AISI)

AISI S100 (2012) North American Specification for the Design of Cold-Formed Steel Structural Members

AMERICAN SOCIETY OF CIVIL ENGINEERS (ASCE)

ASCE 7-16 (2017; Errata 2018; Supp 1 2018) Minimum Design Loads and Associated Criteria for Buildings and Other Structures

AMERICAN WELDING SOCIETY (AWS)

AWS A5.1/A5.1M (2012) Specification for Carbon Steel Electrodes for Shielded Metal Arc Welding

AWS D1.1/D1.1M (2020; Errata 1 2021) Structural Welding Code - Steel

AWS D1.2/D1.2M (2014; Errata 1 2014; Errata 2 2020) Structural Welding Code - Aluminum

ASTM INTERNATIONAL (ASTM)

ASTM A36/A36M (2019) Standard Specification for Carbon Structural Steel

ASTM A123/A123M (2017) Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and

SECTION 07 42 13 Page 1

Steel Products

ASTM A606/A606M (2018) Standard Specification for Steel Sheet and Strip, High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, with Improved Atmospheric Corrosion Resistance

ASTM A653/A653M (2020) Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

ASTM A755/A755M (2018) Standard Specification for Steel Sheet, Metallic Coated by the Hot-Dip Process and Prepainted by the Coil-Coating Process for Exterior Exposed Building Products

ASTM A780/A780M (2020) Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings

ASTM A924/A924M (2020) Standard Specification for General Requirements for Steel Sheet, Metallic-Coated by the Hot-Dip Process

ASTM A1008/A1008M (2021a) Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake Hardenable

ASTM D522/D522M (2017) Mandrel Bend Test of Attached Organic Coatings

ASTM E1592 (2017) Standard Test Method for Structural Performance of Sheet Metal Roof and Siding Systems by Uniform Static Air Pressure Difference

METAL BUILDING MANUFACTURERS ASSOCIATION (MBMA)

MBMA MBSM (2018) Metal Building Systems Manual

SHEET METAL AND AIR CONDITIONING CONTRACTORS' NATIONAL ASSOCIATION

(SMACNA)

SMACNA 1793 (2012) Architectural Sheet Metal Manual, 7th Edition

UNDERWRITERS LABORATORIES (UL)

UL Bld Mat Dir (updated continuously online) Building Materials Directory

1.2 DEFINITIONS

Metal Wall Panel: Metal wall panels, attachment system components and accessories necessary for a complete rainscreen metal wall system.

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1.3 DESCRIPTION OF WALL PANEL SYSTEM

Factory color finished, metal wall panel system with concealed fastening attachment. Panel profile must be as shown on drawings.

1.3.1 Metal Wall Panel General Performance

Comply with performance requirements, conforming to AISI S100, 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 A1008/A1008M

ASTM A123/A123M

ASTM A36/A36M

ASTM A653/A653M

ASTM A606/A606M

ASTM A755/A755M for metallic coated steel sheet for exterior coil pre-painted applications.

ASTM A780/A780M for repair of damage or uncoated areas of hot-dipped galvanized coating.

ASTM A924/A924M for metallic coated steel sheet ASTM D522/D522M for applied coatings UL Bld Mat Dir

1.3.2 Structural Performance NOT USED

1.3.3 Air Infiltration NOT USED

1.3.4 Water Penetration Under Static Pressure NOT USED

1.3.5 Water Penetration Under Dynamic Pressure NOT USED

1.4 PERFORMANCE REQUIREMENTS

a. General: Provide modular metal wall panel system meeting performance requirements as determined by application of specified tests by a qualified testing agency on manufacturer's standard assemblies.

b. Structural Performance: Design modular metal wall panel system fabricated to withstand the effects of wind loads under conditions indicated below.

(1) Wind loads: Determine loads based on uniform pressure, building category, exposure category, and basic wind speed indicatedon drawings.

(2) Air/Moisture Barrier: Refer to Division 07 Section "Insulated-Composite Metal Wall Panel Backup system".

(3) Air/Moisture Barrier: Refer to Division 07 "Air Barrier" section.

c. 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.

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1.5 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for Contractor Quality Control approval. 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 Qualification of Installation Contractor Qualification of Welders Sample Warranty

SD-02 Shop Drawings

Installation Drawings

SD-03 Product Data

Submit Manufacturer's catalog data for the following items:

Closure Materials Accessories

SD-04 Samples

Submit as required each of the following samples:

Fasteners

SD-05 Design Data

Wind load design analysis

As applicable, submit the following wind load design analysis 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-07 Certificates

Submit certificates for the following items showing conformance with referenced standards contained in this section:

Coil Stock Fasteners

SD-08 Manufacturer's Instructions

Include detailed application instructions and standard manufacturer drawings altered as required by these specifications.

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Installation of Wall panels

SD-09 Manufacturer's Field Reports

Submit 5 bound copies of the Manufacturer's Field Reports

SD-11 Closeout Submittals

Warranty Maintenance Instructions

1.6 QUALITY ASSURANCE

1.6.1 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

c. Sustainable acquisition

d. Approved Warranty

e. Sample wall panels, 12 inches long by actual panel width

f. Sample metal closure strips, 10 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 Safety Data Sheets for maintenance and repair materials, and

SECTION 07 42 13 Page 5 manufacturer's maintenance instructions.

1.6.1.1 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.

1.6.1.2 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.

1.6.2 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.

1.6.3 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 7-16, and

ASTM E1592.

Provide certified engineering calculations, using the products submitted, for Wind load requirements in accordance with ASCE 7-16.

1.6.3.1 Manufacturer's Certificates

Also provide the following certifications from the manufacturer:

Coil Stock Fasteners

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.

1.6.4 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.

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1.6.4.1 Qualifications for Welding Work

Qualification of welders and welding must conform to AWS A5.1/A5.1M, AWS D1.1/D1.1Mfor steel or AWS D1.2/D1.2M for aluminum.

1.6.5 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.

1.6.6 Manufacturer's Maintenance Instructions

Provide manufacturer's detailed written instructions including copies of Safety Data Sheets for maintenance and repair materials.

1.7 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.

1.8 PROJECT CONDITIONS

1.8.1 Field Measurements

Verify locations of wall framing and opening dimensions by field measurements before metal wall panel fabrication and indicate measurements on Shop Drawings.

1.8.2 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.

1.9 WARRANTY

a. Special Manufacturer's Warranty: On manufacturer's standard form, in which manufacturer agrees to repair or replace metal wall panel assemblies that fail in materials and workmanship within two years from date of Substantial Completion.

b. Special Panel Paint Finish Warranty: On manufacturer's standard form, in which manufacturer agrees to repair or replace wall panels that display evidence of deterioration of finish within 20 years from date

SECTION 07 42 13 Page 7 of Substantial Completion.

c. Special Panel Anodized Finish Warranty: On manufacturer's standard form, in which manufacturer agrees to repair or replace wall panels that display evidence of deterioration of finish with 10 years from date of Substantial Completion or within 6 months of date of finish application.

1.9.1 20 Year "No Dollar Limit" Warranty for Labor and Material NOT USED

PART 2 PRODUCTS

2.1 SYSTEM DESCRIPTION

Modular metal wall panel system consisting of aluminum panels in a rainscreen application as part of the assembly described below.

2.1.1 Modular Metal Wall Panels over Outside-Insulated Framed Wall System

Modular metal panels applied as exterior rainscreen cladding over wall framing specified in Division 05 Section "Cold-Formed Metal Framing" with exterior sheathing specified in Division 06 Section "Sheathing", an applied membrane that provides air, moisture, and water vapor control specified in Division 07 Section "Air Barriers", and insulation applied outboard of the sheathing specified in Division 07 Section "Thermal Insulation". Metal wall panel installation specified in this Section includes mounting clips for panel attachment.

a. Water-resistive barrier is provided under Division 07 Section "Weather Barriers."

b. Air, moisture, and water vapor control membrane is provided under Division 07 Section "Air Barriers."

2.1.2 Modular Metal Wall Panels over Masonry Wall System

Modular metal wall panels applied as exterior rainscreen cladding over a masonry wall and rigid board insulation specified in Division 04 Section "Unit Masonry" and an applied membrane that provides air, moisture, and water vapor control specified in Division 07 Section "Air Barriers". Metal wall panel installation specified in this Section includes secondary metal subgirt framing for panel attachment.

a. Water-resistive barrier is provided under Division 07 Section "Weather Barriers."

b. Air, moisture, and water vapor control membrane is provided under Division 07 Section "Air Barriers."

2.2 MATERIALS

2.2.1 Aluminum Sheet

Smooth surface coil-coated sheet, ASTM B209, 3105-H14 Alloy.

a. Aluminum Material: Tension-leveled, flouropolymer PVDF painted finish, 3105-H14.

b. Thickness: 0.060" nominal

SECTION 07 42 13 Page 8

c. Weight: Approximately 1.8 - 2.8 lb. per square foot

d. Finish: Three-Coat Fluoropolymer.

2.2.2 Steel Sheet NOT USED

2.2.3 Factory Color Finish NOT USED

2.3 MODULAR METAL PANELS

Modular Metal Panels: Factory-formed, aluminum-faced panels fabricated from 0.060" thick aluminum sheet.

a. Panel Depths: 2" nominal.

b. Panel Flatness: Maximum allowable distortion: 1/32 inch in 24 inches in any direction. Panel lines, breaks, and angles shall be sharp and true, and surfaces shall be free from warp or buckle. Where panels exceed the maximum modular size, provide stiffening ribs to back of the panel to maintain flatness per manufacturers requirements.

c. Attachment Clips: Manufacturer's standard extruded clips as required to meet performance requirements and ensure consistent reveals, non-extruded attachment will not be accepted.

d. Fasteners: Spacing, type and quantity as determined by manufacture's structural engineer.

e. Accessories: As indicated on manufacturer's standard drawings.

f. Panel Joints: 3/4".

g. Panel sizes: As indicated on drawings.

h. Provide post-finishing of panels, paint/anodize aluminum wall panels only after completion of pan fabrication.

2.3.1 Sheet Surface

Smooth.

2.3.2 Aluminum Face Sheet Finishes

Superior Performance Organic Coating System: AAMA 2605 multiple coat, thermally cured polyvinylidene flouride (PVDF) resing system.

a. Three Coat Fluoropolymer: AAMA 2605, fluoropolymer finish containing minimum 70 percent PVDF resins, three coat system, color to be selected from manufacturer's full color range.

2.3.3 Exposed Trim, Flashings and Fastener Finish

Match panel finish unless otherwise noted.

a. Minimum Thickness: 0.060" nominal shop formed.

b. Refer to Section 07 62 00.

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2.4 SECONDARY METAL FRAMING

A. Miscellaneous Framing Components, General: Cold-formed metallic-coated steel sheet, ASTM A 653/A 653M, G90 (Z180) hot-dip galvanized zinc coating.

a. Hat Channels: 0.048 inch/18 ga. (1.22 mm) minimum nominal thickness.

b. Sill Channels: 0.048 inch/18 ga. (1.22 mm) minimum nominal thickness.

2.5 ACCESSORIES

Provide manufacturer's extruded clips, shims, flashings, sealants, and tapes for a complete installation.

2.6 FABRICATION

2.6.1 General

Fabricate modular metal panels and accessories at factory identical to tested units using manufacturer's standard procedures and processes necessary to meet performance requirements.

a. Provide components of modular metal panel system that are products of one manufacturer, including modular metal panels, head and sill trim, bottom weep, starter flash, and metal copings.

2.6.2 Modular Metal Panels

Fabricate modular metal panels requiring no further fabrication or modification in field.

a. Horizontal Joints: Dry seal, drained and back ventilated.

b. Vertical Joints: Pre-formed returns.

c. Reveals: 3/4".

d. Standard System Depth: 1-3/8".

2.7 REPAIR OF FINISH PROTECTION

Repair paint for color finish wall panel must be compatible paint of the same formula and color as the specified finish furnished by the wall panel manufacturer. Provide quarts of repair paint matching the specified wall panels.

2.8 PRE-ASSEMBLED SMALL ALUMINUM CANOPIES

Provide pre-assemble canopies at locations as indicated on the drawings.

Pre-assembled canopies to be shop fabricated to the greatest extent possible. Disassemble units only as necessary for shipping and handling limitations. Clearly mark units for reassembly and coordinated installation.

2.8.1 Materials

a. Framing: Aluminum gutter beams, clip angles: 6063 alloy extruded aluminum

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b. Decking: Interlocking panels, extruded aluminum or sheet metal

c. Soffits: Pre-finished Kynar sheet metal. 12" wide panels attached to 18ga galvanized c-channel

d. Hanger Rods: Zinc steel and powder coat (Prime and paint are not acceptable)

e. Connections: Wall plates and canopy mounting brackets are to be aluminum.

f. Hardware and Fasteners: Nuts, bolts, washers, clevis pins, screws, anchors and pipe spacers to be zinc plated or galvanized steel required to suit application and per pre-engineered canopy load requirements.

g. Flashing: Shall be minimum 0.040 inch aluminum, fabricated to prevent leakage and sealed with metal roof sealant in clear or color match.

h. Fascia: Flat aluminum 5052 alloy sheet .063 to .125 thickness -depending on height. Finish:

(1) Anodize per AAMA 611

(2) Powder coat per AAMA 2603

(3) Kynar per AAMA 2605

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 7-16 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, SECTION 07 42 13 Page 11 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 NOT USED

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 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 Pre-assembled Canopy Installation

a. Install canopies per manufacturer's written instructions and as indicated on drawings.

SECTION 07 42 13 Page 12

b. Locate and place canopies level, plumb and at indicated alignment with adjacent work.

c. Use concealed anchors where possible.

d. Repair damaged finishes so no evidence remains of corrective work.

Return items to the factory that cannot be refinished in the field.

Make required alterations and refinish entire unit or provide new units.

e. Protect galvanized and nonferrous-metal surfaces from corrosion or galvanic action by applying a coating of bituminous paint or elastomeric coating on surfaces that will be in contact with concrete, masonry or dissimilar metals.

3.5 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.

3.6 FLASHING, TRIM AND CLOSURE INSTALLATION

3.6.1 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, as required by the manufacturer's written installation instructions.

Install sheet metal work 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.

3.6.2 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 8 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 8 foot lengths. Exposed flashing is to have 1 inch locked and blind-soldered end joints, and expansion joints at intervals of not more than 16 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.

SECTION 07 42 13 Page 13

3.6.3 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.

3.7 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 1/2 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 complete to work.

3.8 ACCEPTANCE PROVISIONS

3.8.1 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.

3.8.2 Leakage Tests NOT USED

3.8.3 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.

3.8.4 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.

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3.9 FIELD QUALITY CONTROL

3.9.1 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.

3.10 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.

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