13 34 19 Am1.pdf

Berlin Dam Crest Gates Rehabilitation

SECTION TABLE OF CONTENTS

DIVISION 13 - SPECIAL CONSTRUCTION

SECTION 13 34 19

METAL BUILDING SYSTEMS

PART 1 GENERAL

1.1 SCOPE

1.2 REFERENCES

1.3 GENERAL REQUIREMENTS

1.3.1 Structural Performance

1.3.1.1 Engineering

1.3.1.2 Design Loads

1.3.1.3 Live Loads

1.3.1.4 Roof Snow Loads

1.3.1.5 Wind Loads

1.3.1.6 Collateral Loads

1.3.1.7 Auxiliary Loads

1.3.1.8 Load Combinations

1.3.1.9 Deflection Limits

1.3.2 Seismic Performance

1.3.3 Thermal Movements

1.3.4 Air Infiltration for Metal Roof Panels

1.3.5 Air Infiltration for Metal Wall Panels

1.3.6 Water Penetration for Metal Roof Panels

1.3.7 Water Penetration for Metal Wall Panels

1.3.8 Wind-Uplift Resistance

1.4 DEFINITIONS

1.5 SYSTEM DESCRIPTION

1.5.1 Primary Frame Type

1.5.2 Fixed End-Wall Framing

1.5.3 Expandable End-Wall Framing

1.5.4 Secondary Frame Type

1.5.5 Eave Height

1.5.6 Bay Spacing

1.5.7 Roof Slope

1.5.8 Roof System

1.5.9 Exterior Wall System

1.6 SUBMITTALS

1.7 QUALITY ASSURANCE

1.7.1 Pre-Erection Conference

1.7.1.1 Pre-Roofing and Siding Installation Conference

1.7.2 Manufacturer's Technical Representative

1.7.3 Manufacturer's Qualifications

1.7.4 Contractor's Foundation Design Engineer Qualifications

1.7.5 Qualification of Erection Contractor

1.7.6 Single Source

1.7.7 Welding

1.7.8 Structural Steel

1.7.9 Cold-Formed Steel

1.7.10 Fabrication

1.7.11 Finishes

1.8 SHIPPING, HANDLING AND STORAGE

SECTION 13 34 19 Page 1 W911WN-09-B-0002 Revised by Amendment No. 0002

1.8.1 Delivery

1.9 PROJECT CONDITIONS

1.9.1 Weather Limitations

1.9.2 Field Measurements

1.9.2.1 Established Dimensions for Foundations

1.9.2.2 Established Dimensions for Metal Panels

1.9.2.3 Verification Record

1.10 COORDINATION

1.11 WARRANTY

1.11.1 Warranty

1.11.2 Prime Contractor's Weathertightness Warranty

1.11.3 Manufacturer's Material and/or System Weathertightness

Warranties

PART 2 PRODUCTS

2.1 STRUCTURAL FRAMING MATERIALS

2.1.1 W-Shapes

2.1.2 Channel, Angles, M-Shapes and S-Shapes

2.1.3 Plate and Bar

2.1.4 Steel Pipe

2.1.5 Cold-Formed and Hot Formed Hollow Structural Sections

2.1.6 Structural-Steel Sheet

2.1.7 Metallic-Coated Steel Sheet

2.1.8 Metallic-Coated Steel Sheet Pre-painted with Coil Stock Coating

2.1.9 High-Strength Bolts, Nuts, and Washers

2.1.10 Non-High-Strength Bolts, Nuts, and Washers

2.1.11 Anchor Rods

2.1.12 Threaded Rods

2.1.13 Primer

2.2 FABRICATION

2.2.1 General

2.3 STRUCTURAL FRAMING

2.3.1 General

2.3.2 Primary Framing

2.3.3 Secondary Framing

2.3.4 Bracing

2.4 PANEL MATERIALS

2.4.1 Steel Sheet

2.4.2 Finish

2.4.3 Repair Of Finish Protection

2.5 MISCELLANEOUS METAL FRAMING

2.5.1 General

2.5.2 Fasteners for Miscellaneous Metal Framing

2.6 FASTENERS

2.6.1 General

2.6.2 Exposed Fasteners

2.6.3 Screws

2.6.4 Rivets

2.6.5 Attachment Clips

2.7 FRAMES AND MATERIALS FOR OPENINGS

2.7.1 Doors

2.8 ACCESSORIES

2.8.1 General

2.8.2 Roof and Wall Accessories and Specialties

2.8.3 Rubber Closure Strips

2.8.4 Metal Closure Strips

2.8.5 Joint Sealants

2.8.5.1 Sealants

SECTION 13 34 19 Page 2

2.8.5.2 Shop-Applied

2.8.5.3 Field-Applied

2.8.5.4 Tape Sealant

2.9 SHEET METAL FLASHING AND TRIM

2.9.1 Fabrication

2.10 FINISHES

2.10.1 General

2.10.2 Appearance of Finished Work

2.11 Traveling Hoist Enclosure Chain Hoists

PART 3 EXECUTION

3.1 EXAMINATION

3.2 PREPARATION

3.3 ERECTION OF STRUCTURAL FRAMING

3.4 METAL WALL PANEL INSTALLATION

3.5 ROOF PANEL INSTALLATION

3.6 METAL PANEL FASTENER INSTALLATION

3.7 FLASHING, TRIM AND CLOSURE INSTALLATION

3.8 DOOR AND FRAME INSTALLATION

3.9 ACCESSORY INSTALLATION

3.9.1 General

3.9.2 Dissimilar Metals

3.9.3 Gutters and Downspouts

3.9.4 Roof and Wall Accessories and Specialties

3.10 CLEAN-UP AND PROTECTION

3.10.1 Structural Framing

3.10.2 Metal Panels

3.10.3 Touch-Up Painting

3.11 WASTE MANAGEMENT

3.12 WARRANTY

3.12.1 Contractor's Five (5) Year No Penal Sum Warranty

-- End of Section Table of Contents --

SECTION 13 34 19 Page 3

SECTION 13 34 19

METAL BUILDING SYSTEMS

PART 1 GENERAL

1.1 SCOPE

This section covers the design, fabrication, and installation requirements for the pre-engineered traveling hoist enclosure. This section also addresses the equipment requirements for the traveling hoist enclosure chain hoists.

1.2 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 INSTITUTE OF STEEL CONSTRUCTION (AISC)

AISC 325 (2005) Manual of Steel Construction

AISC 341 (2005; Supp 2001) Seismic Provisions for Structural Steel Buildings

AISC 350 (2005) Load and Resistance Factor Design (LRFD)Specification for Structural Steel Buildings

AISC 360 (2005) Specification for Structural Steel Buildings, with Commentary

AMERICAN IRON AND STEEL INSTITUTE (AISI)

AISC/AISI 121 (2004) Standard Definitions for Use in the Design of Steel Structures

AISI SG03-3 (2002) Cold-Formed Steel Design Manual Set

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 Welding

AWS D1.1/D1.1M (2006; Errata 2006) Structural Welding Code - Steel

AWS D1.3/D1.3M (2008) Structural Welding Code - Sheet Steel

SECTION 13 34 19 Page 4

ASTM INTERNATIONAL (ASTM)

ASTM A 1008/A 1008M (2007a) 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 Hardened

ASTM A 1011/A 1011M (2007) Standard Specification for Steel, Sheet, and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability

ASTM A 123/A 123M (2002) Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM A 307 (2007b) Standard Specification for Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength

ASTM A 325 (2007a) Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength

ASTM A 36/A 36M (2005) Standard Specification for Carbon Structural Steel

ASTM A 463/A 463M (2006) Standard Specification for Steel Sheet, Aluminum-Coated

ASTM A 500/A 500M (2007) Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes

ASTM A 501 (2007) Standard Specification for Hot-Formed Welded and Seamless Carbon Steel Structural Tubing

ASTM A 529/A 529M (2005) Standard Specification for High-Strength Carbon-Manganese Steel of Structural Quality

ASTM A 53/A 53M (2007) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM A 563 (2007a) Standard Specification for Carbon and Alloy Steel Nuts

ASTM A 572/A 572M (2007) Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel

ASTM A 606 (2004) Standard Specification for Steel Sheet and Strip, High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, with Improved

SECTION 13 34 19 Page 5

Atmospheric Corrosion Resistance

ASTM A 653/A 653M (2007) Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

ASTM A 755/A 755M (2003) 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 A 780 (2001; R 2006) Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings

ASTM A 792/A 792M (2006a) Standard Specification for Steel Sheet, 55% Aluminum-Zinc Alloy-Coated by the Hot-Dip Process

ASTM A 992/A 992M (2006a) Standard Specification for Structural Steel Shapes

ASTM B 117 (2007a) Standing Practice for Operating Salt Spray (Fog) Apparatus

ASTM B 209 (2007) Aluminum and Aluminum-Alloy Sheet and Plate

ASTM B 221 (2006) Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

ASTM B 221M (2007) Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes (Metric)

ASTM C 920 (2005) Elastomeric Joint Sealants

ASTM D 1056 (2007) Flexible Cellular Materials - Sponge or Expanded Rubber

ASTM D 1308 (2002; R 2007) Effect of Household Chemicals on Clear and Pigmented Organic Finishes

ASTM 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 Coordinates

ASTM D 2247 (2002) Testing Water Resistance of Coatings in 100% Relative Humidity

ASTM D 2794 (1993; R 2004) Resistance of Organic Coatings to the Effects of Rapid

SECTION 13 34 19 Page 6

Deformation (Impact)

ASTM D 3363 (2005) Film Hardness by Pencil Test

ASTM D 4214 (2007) Standard Test Method for Evaluating the Degree of Chalking of Exterior Paint Films

ASTM D 522 (1993a; R 2008) Mandrel Bend Test of Attached Organic Coatings

ASTM D 523 (1989; R 1999) Standard Test Method for Specular Gloss

ASTM D 714 (2002e1) Evaluating Degree of Blistering of Paints

ASTM D 822 (2001; R 2006) Filtered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings

ASTM D 968 (2005e1) Abrasion Resistance of Organic Coatings by Falling Abrasive

ASTM DEF (2005) ASTM Dictionary of Engineering Science and Technology, 10th Edition

ASTM E 1592 (2005) Structural Performance of Sheet Metal Roof and Siding Systems by Uniform Static Air Pressure Difference

ASTM E 1646 (1995; R 2003) Standard Test Method for Water Penetration of Exterior Metal Roof Panel Systems by Uniform Air Pressure Difference

ASTM E 168 (2006) General Techniques of Infrared Quantitative Analysis

ASTM E 283 (2004) Determining the Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors Under Specified Pressure Differences Across the Specimen

ASTM E 331 (2000) Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference

ASTM E 84 (2008a) Standard Test Method for Surface Burning Characteristics of Building Materials

ASTM F 1554 (2007a)Standard Specification for Anchor Bolts, Steel, 36, 55, and 105-ksi Yield Strength

ASTM F 1852 (2007) Standard Specification for "Twist Off" Type Tension Control Structural

SECTION 13 34 19 Page 7

Bolt/Nut/Washer Assemblies, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength

ASTM F 436 (2007a) Hardened Steel Washers

ASTM F 844 (2007a) Washers, Steel, Plain (Flat), Unhardened for General Use

ASTM 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

NATIONAL ROOFING CONTRACTORS ASSOCIATION (NRCA)

NRCA RWM (2003) Roofing and Waterproofing Manual

SHEET METAL AND AIR CONDITIONING CONTRACTORS' NATIONAL ASSOCIATION

(SMACNA)

SMACNA Arch. Manual (2006) Architectural Sheet Metal Manual

THE SOCIETY FOR PROTECTIVE COATINGS (SSPC)

SSPC A (2000) Good Painting Practice Steel Structures Painting Manual, Volume 1

SSPC Paint 15 (1999; R 2004) Steel Joist Shop Primer/Metal Building Primer

SSPC SP 2 (1982; E 2004) Hand Tool Cleaning

UNDERWRITERS LABORATORIES (UL)

UL 580 (2006) Tests for Uplift Resistance of Roof Assemblies

1.3 GENERAL REQUIREMENTS

1.3.1 Structural Performance

Provide metal building systems capable of withstanding the effects of gravity loads and the following loads and stresses within the limits and conditions indicated.

1.3.1.1 Engineering

Design metal building systems conforming to procedures described in MBMA MBSM. The analysis shall be based on a "bare-frame" model. The Contractor is responsible for providing engineering for the foundation design and anchor bolt design, including reinforcing. The foundations

SECTION 13 34 19 Page 8 indicated are based on similar pre-engineered metal buildings with similar loading.

1.3.1.2 Design Loads

Conform to the requirements of ASCE/SEI 7-05, and the building code applicable to the project geographical location: (2006) Ohio Building Code.

1.3.1.3 Live Loads

Include all vertical loads induced by the building occupancy indicated on the drawings, as well as loads induced by maintenance workers, materials and equipment for roof live loads.

1.3.1.4 Roof Snow Loads

Include vertical loads induced by the weight of snow, as determined by 50 year Mean-Recurrence-Interval (MRI) ground snow load at the project site of 20 psf. Allow for unbalanced and drift loads.

1.3.1.5 Wind Loads

Include horizontal loads induced by a basic wind speed corresponding to a 50-year, mean-recurrence interval at Project site of 90 mph.

1.3.1.6 Collateral Loads

Include additional dead loads other than the weight of metal building system for permanent items such as sprinklers, mechanical systems, electrical systems, and ceilings. Design for a collateral load of 10 psf.

1.3.1.7 Auxiliary Loads

Include dynamic live loads, such as those generated by cranes and materials-handling equipment indicated on detail drawings.

1.3.1.8 Load Combinations

Design metal building systems to withstand the most critical effects of load factors and load combinations as required by ASCE/SEI 7-05, and the building code applicable to the project location.

1.3.1.9 Deflection Limits

Engineer assemblies to withstand design loads with deflections no greater than the following:

a. Purlins and Rafters; vertical deflection of 1/240 of the span.

b. Girts; horizontal deflection of 1/240 of the span.

c. Metal Roof Panels; vertical deflection of 1/240 of the span.

d. Metal Wall Panels; horizontal deflection of 1/240 of the span.

Design secondary framing system to accommodate deflection of primary building structure and construction tolerances, and to maintain clearances at openings. Provide metal panel assemblies capable of withstanding the effects of loads and stresses indicated, based on testing according to

SECTION 13 34 19 Page 9

ASTM E 1592.

1.3.2 Seismic Performance

Design and engineer metal building system capable of withstanding the effects of earthquake motions determined according to ASCE/SEI 7-05, AISC 341, and the applicable portions of the building code in the geographic area where the construction will take place.

1.3.3 Thermal Movements

Provide metal panel systems that allow for thermal movements resulting from the following maximum change (range) in ambient and surface temperatures by preventing buckling, opening of joints, overstressing of components, failure of joint sealants, failure of connections, and other detrimental effects. Base engineering calculation on surface temperatures of materials due to both solar heat gain and nighttime-sky heat loss as follows:

a. Temperature Change (Range); 120 degrees F, ambient; 180 degrees F, material surfaces.

1.3.4 Air Infiltration for Metal Roof Panels

Air leakage through assembly must not exceed 0.06 cfm/sq.ft. of roof area when tested according to ASTM E 168 at negative test-pressure difference of

1.57 lb/sq.ft.

1.3.5 Air Infiltration for Metal Wall Panels

Air leakage through assembly of not more than 0.06 cfm/sq.ft. of wall area when tested according to ASTM E 283 at static-air-pressure difference of

6.24 lbf/sq.ft.

1.3.6 Water Penetration for Metal Roof Panels

No water penetration when tested according to ASTM E 1646 at test-pressure difference of 2.86 lbf/sq.ft.

1.3.7 Water Penetration for Metal Wall Panels

No water penetration when tested according to ASTM E 331 at a minimum differential pressure of 20 percent of inward-acting, wind-load design pressure of not less than 6.24 lbf/sq.ft. and not more than 12 lbf/sq. ft.

1.3.8 Wind-Uplift Resistance

Provide metal roof panel assemblies that comply with UL 580 for Class 90, ASCE/SEI 7-05, and the building code in the geographic area where the construction will take place.

1.4 DEFINITIONS

ASTM DEF applies to this definition paragraph.

a. Bay: Dimension between main frames measured normal to frame (at centerline of frame) for interior bays, and dimension from centerline of first interior main frame measured normal to end wall (outside face of end-wall girt) for end bays.

SECTION 13 34 19 Page 10

b. Building Length: Dimension of the building measured perpendicular to main framing from end wall to end wall (outside face of girt to outside face of girt).

c. Building Width: Dimension of the building measured parallel to main framing from sidewall to sidewall (outside face of girt to outside face of girt).

d. Clear Span: Distance between supports of beams, girders, or trusses (measured from lowest level of connecting area of a column and a rafter frame or knee).

e. Eave Height: Vertical dimension from finished floor to eave (the line along the sidewall formed by intersection of the planes of the roof and wall).

f. Clear Height under Structure: Vertical dimension from finished floor to lowest point of any part of primary or secondary structure, not including crane supports, located within clear span.

g. Terminology Standard: Refer to MBMA "Metal Building Systems Manual" for definitions of terms for metal building system construction not otherwise defined in this Section or in referenced standards.

1.5 SYSTEM DESCRIPTION

General: Provide a complete, integrated set of metal building system manufacturer's standard mutually dependent components and assemblies that form a metal building system capable of withstanding structural and other loads, thermally induced movement, and exposure to weather without failure or infiltration of water into building interior. Include primary and secondary framing, metal roof panels, metal wall panels, and accessories complying with requirements indicated.

a. Provide metal building system of size and with spacing, slopes, and spans indicated.

b. Penetrations through siding and roofing panels in the traveling hoist enclosure will not be permitted. Uni-struts or other bracing members attached to the interior framing shall be provided for support of equipment.

1.5.1 Primary Frame Type

a. Rigid Clear Span: Solid-member, structural-framing system without interior columns.

1.5.2 Fixed End-Wall Framing

Provide manufacturer's standard fixed end wall, for buildings not required to be expandable, consisting of primary frame, capable of supporting one-half of a bay design load, and end-wall columns.

1.5.3 Expandable End-Wall Framing

Provide engineered end walls to be expandable where indicated on detail drawings. Provide primary frame, capable of supporting full-bay design loads, and end-wall columns.

SECTION 13 34 19 Page 11

1.5.4 Secondary Frame Type

Provide manufacturer's standard purlins and joists and flush-framed girts.

1.5.5 Eave Height

Eave height must be 22 feet minimum. Manufacturer shall provide eave height sufficient to install overhead coiling door with size indicated and trolley hoist with top of steel indicated.

1.5.6 Bay Spacing

Bay Spacing must be 25 feet.

1.5.7 Roof Slope

Roof slope must be 2 inches per 12 inches.

1.5.8 Roof System

Provide manufacturer's standard vertical-rib, standing-seam metal roof panels.

1.5.9 Exterior Wall System

Provide manufacturer's standard field-assembled, un-insulated metal wall panels.

1.6 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are 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

Manufacturer's Qualifications; G, RE

SD-02 Shop Drawings

Detail Drawings; G, RE Foundation Detail Drawings; G, RE

SD-03 Product Data

Manufacturer's Catalog Data; G, RE

Traveling Hoist Enclosure Chain Hoists; G, TS

The Contractor shall submit for approval, manufacturer's catalog data, including descriptive literature and test data, for the chain hoists.

SD-04 Samples

Coil Stock, 12 inches long by the actual panel width; G, RE

SECTION 13 34 19 Page 12

Roof Panels, 12 inches long by actual panel width; G, RE

Wall Panels, 12 inches long by actual panel width; G, RE

Fasteners; G, RE

Metal Closure Strips 10 inches long of each type; G, RE

Manufacturer's Color Charts and Chips, 4 inches by 4 inches; G, RE

SD-05 Design Data

Manufacturer's Descriptive and Technical Literature; G, RE

Manufacturer's Building Design Analysis; G, RE

Contractor's Foundation Design; G, RE

SD-06 Test Reports

Test Reports; G, RE

Coatings and Base Metals ; G, RE

Factory Color Finish Performance Requirements; G, RE

SD-07 Certificates

System Components ; G, RE

Coil Stock Certification; G, RE

Aluminized Steel Repair Paint; G, RE

Galvanizing Repair Paint; G, RE

Enamel Repair Paint; G, RE

Qualification of Manufacturer; G, RE

Qualification of Erector; G, RE

SD-08 Manufacturer's Instructions

Installation of Roof and Wall Panels; G, RE

Shipping, Handling, and Storage; G, RE

SD-11 Closeout Submittals

Manufacturer's Warranty; G, RE

Contractor's Warranty for Installation; G, RE

Warranty; G, RE

SECTION 13 34 19 Page 13

1.7 QUALITY ASSURANCE

1.7.1 Pre-Erection Conference

After submittals are received and approved but before metal building system work, including associated work, is performed, the Contracting Officer will hold a pre-erection conference to review the following:

a. The detail drawings, specifications, Contractor's approved foundation detail drawings, and manufacturer's descriptive and technical literature.

b. Finalize construction schedule and verify availability of materials, erector's personnel, equipment, and facilities needed to make progress and avoid delays

c. Methods and procedures related to metal building system erection, including, but not limited to: qualification of manufacturer, qualification of erector, manufacturer's catalog data, building design analysis, written instructions and test reports.

d. Support conditions for compliance with requirements, including alignment between and erection of structural members

e. Flashing, special roofing and siding details, roof and wall penetrations, openings, and condition of other construction that will affect metal building system, including coatings and base metals, factory color finish performance requirements, system components, and certificates for coil stock.

f. Governing regulations and requirements for, certificates, insurance, tests and inspections if applicable

g. Temporary protection requirements for metal panel assembly during and after installation

h. Samples of aluminized steel repair paint, galvanizing repair paint, and enamel repair paint.

1.7.1.1 Pre-Roofing and Siding Installation Conference

After structural framing system erection and approval but before roofing, siding work, including associated work, is performed; the Contracting Officer will hold a pre-roofing and siding conference to review the following:

a. Examine purlins, sub-girts and formed shapes conditions for compliance with requirements, including flatness and attachment to structural members.

b. Review structural limitations of purlins, sub-girts and formed shapes during and after roofing and siding.

c. Review flashings, special roof and wall details, roof drainage, roof and wall penetrations, roof equipment curbs, and condition of other construction that will affect the metal building system.

d. Review temporary protection requirements for metal roof and wall panels' assembly during and after installation.

SECTION 13 34 19 Page 14

e. Review roof and wall observation and repair procedures after metal building system erection.

1.7.2 Manufacturer's Technical Representative

The representative must have authorization from manufacturer to approve field changes and be thoroughly familiar with the products, erection of structural framing and installation of roof and wall panels in the geographical area where construction will take place.

1.7.3 Manufacturer's Qualifications

Metal building system manufacturer must have a minimum of five (5) years experience as a quailed manufacturer and a member of MBMA of metal building systems and accessory products.

Provide engineering services by an authorized currently licensed engineer in the geographical area where construction will take place, having a minimum of four (4) years experience as an engineer knowledgeable in building design analysis, protocols and procedures for the "Metal Building Systems Manual" (MBMA MBSM), ASCE/SEI 7-05, the building code in the geographic area where the construction will take place, and ASTM E 1592.

Provide certified engineering calculations using the products submitted for:

a. Roof and Wall Wind Loads with basic wind speed, exposure category, co-efficient, importance factor, designate type of facility, negative pressures for each zone, methods and requirements of attachment.

b. Roof Dead and Live Loads

c. Collateral Loads

d. Foundation Loads

e. Roof Snow Load

f. Seismic Loads

1.7.4 Contractor's Foundation Design Engineer Qualifications

The Contractor's Engineer shall be licensed to practice engineering in the United States and shall be familiar with the codes, laws, and regulations for the state the project is located in.

1.7.5 Qualification of Erection Contractor

An experienced erector who has specialized in erecting and installing work similar in material, design, and extent to that indicated for this Project and must be approved and certified by the metal building system manufacturer.

1.7.6 Single Source

Obtain primary and secondary components and structural framing members, each type of metal roof, wall and liner panel assemblies, clips, closures and other accessories from the standard products of the single source from

SECTION 13 34 19 Page 15 a single manufacturer to operate as a complete system for the intended use.

1.7.7 Welding

Qualify procedures and personnel according to AWS A5.1/A5.1M, AWS D1.1/D1.1M, and AWS D1.3/D1.3M."

1.7.8 Structural Steel

Comply with AISC 325, AISC 341 for seismic impacted designs, AISC 350, and AISC 360, for design requirements and allowable stresses.

1.7.9 Cold-Formed Steel

Comply with AISC/AISI 121 and AISI SG03-3 for design requirements and allowable stresses.

1.7.10 Fabrication

Fabricate and finish metal 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 with dimensional and structural requirements

Provide metal panel profile, including major ribs and intermediate stiffening ribs, if any, for full length of panel. Aluminum and aluminum-alloy sheet and plate must conform to ASTM B 209.

Fabricate metal 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.

Sheet Metal Accessories: Fabricate flashing and trim to comply with recommendations in SMACNA Arch. Manual 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 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 standards.

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 or by metal building system manufacturer for application, but not less than thickness of metal being secured.

SECTION 13 34 19 Page 16

1.7.11 Finishes

Comply with NAAMM AMP 500 for recommendations for applying and designating finishes.

Appearance of Finished Work: 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.

1.8 SHIPPING, HANDLING AND STORAGE

1.8.1 Delivery

Package and deliver components, sheets, metal panels, and other manufactured items so as not to be damaged or deformed and protected during transportation and handling.

Stack and store metal panels horizontally on platforms or pallets, covered with suitable weather-tight and ventilated covering to ensure dryness, with positive slope for drainage of water. Store in a manner to prevent bending, warping, twisting, and surface damage. 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 panel for entire period up to metal panel installation.

Complete installation and concealment of plastic materials as rapidly as possible in each area of construction to minimize ultraviolet exposure.

1.9 PROJECT CONDITIONS

1.9.1 Weather Limitations

Proceed with installation preparation only when existing and forecasted weather conditions permit Work to proceed without water entering into existing panel system or building.

1.9.2 Field Measurements

1.9.2.1 Established Dimensions for Foundations

Comply with established dimensions on approved anchor-bolt plans, established foundation dimensions, and proceed with fabricating structural framing. Do not proceed without verifying field measurements. Coordinate anchor-bolt installation to ensure that actual anchorage dimensions correspond to established dimensions.

1.9.2.2 Established Dimensions for Metal Panels

Where field measurements cannot be made without delaying the Work, either establish framing and opening dimensions and proceed with fabricating metal panels without field measurements, or allow for field trimming metal panels. Coordinate construction to ensure that actual building dimensions, locations of structural members, and openings correspond to established dimensions.

1.9.2.3 Verification Record

Verify locations of all framing and opening dimensions by field

SECTION 13 34 19 Page 17 measurements before metal panel fabrication and indicate measurements on Shop Drawings.

1.10 COORDINATION

Coordinate size and location of concrete foundations and casting of anchor-bolt inserts into foundation walls and footings. Concrete, reinforcement, and formwork requirements are specified in Division 03, Section 03 30 53 CONCRETE FOR MINOR CONSTRUCTION.

Coordinate installation of overhead trolley hoist, equipment supports, framing, and accessories, which are specified in in this section.

Coordinate installation of HVAC system, equipment supports, ductwork and supports, and accessories, which are specified in Division 23 - HEATING, VENTILATING AND AIR-CONDITIONING (HVAC).

Coordinate metal panel assemblies with rain drainage work, flashing, trim, and construction of supports and other adjoining work to provide a leak-proof, secure, and non-corrosive installation.

1.11 WARRANTY

1.11.1 Building System Warranty

Furnish manufacturer's no-dollar-limit warranty for the metal building system. The warranty period is to be no less than 20 years from the date of acceptance of the work and be issued directly to the Government. The warranty must provide that if within the warranty period, the metal building system shows evidence of deterioration resulting from defective materials and/or workmanship, correcting of any defects is the responsibility of the metal building system manufacturer. Repairs that become necessary because of defective materials and workmanship while metal building system is under warranty are to be performed within 32 hours after notification, unless additional time is approved by the Contracting Officer. Failure to perform repairs within 32 hours of notification will constitute grounds for having emergency repairs performed by others and will not void the warranty.

1.11.2 Roof System Weather-Tightness Warranty

Furnish manufacturer's no-dollar-limit warranty for the metal panel system. The warranty period is to be no less than 20 years from the date of acceptance of the work and be issued directly to the Government.

The warranty is to provide that if within the warranty period the roof panel system shows evidence of corrosion, perforation, rupture, lost of weather-tightness or excess weathering due to deterioration of the panel system resulting from defective materials and correction of the defective workmanship is to be the responsibility of the metal building system manufacturer.

Repairs that become necessary because of defective materials and workmanship while roof 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 temporary repairs within 24 hours of notification will constitute grounds for having emergency repairs performed by others and not void the warranty. Immediate follow-up and completion of permanent repairs must be performed within 30 days from date

SECTION 13 34 19 Page 18 of notification.

1.11.3 Roof and Wall Panel Finish Warranty

Furnish manufacturer's no-dollar-limit warranty for the metal panel system. The warranty period is to be no less than 20 years from the date of acceptance of the work and be issued directly to the Government.

The warranty is to provide that if within the warranty period the metal panel system shows evidence of checking, delaminating cracking, peeling, chalk in excess of a numerical rating of eight, as determined by ASTM D 4214 test procedures; or change colors in excess of five CIE or Hunter units in accordance with ASTM D 2244 or excess weathering due to deterioration of the panel system resulting from defective materials and finish or correction of the defective workmanship is to be the responsibility of the metal building system manufacturer.

Liability under this warranty is exclusively limited to replacing the defective coated materials.

Repairs that become necessary because of defective materials and workmanship while roof and wall panel system is under warranty are to be performed within 32 hours after notification, unless additional time is approved by the Contracting Officer. Failure to perform repairs within 32 hours of notification will constitute grounds for having emergency repairs performed by others and not void the warranty.

1.11.1 Warranty

The Metal Building System, composed of framing and structural members, roofing and siding, gutters and downspouts, accessories, fasteners, trim, and miscellaneous building closure items such as doors (when furnished by the manufacturer) shall be warranted as described below against material and workmanship deficiencies, system deterioration caused by exposure to the elements and service design loads, leaks and wind uplift damage. Any emergency temporary repairs conducted by the owner shall not negate the warranties.

1.11.2 Prime Contractor's Weathertightness Warranty

The Metal Building System shall be warranted by the Contractor on a no penal sum basis for a period of five years against materials and workmanship deficiencies; system deterioration caused by exposure to the elements and/or inadequate resistance to specified service design loads, water leaks, and wind uplift damage. The Metal Building System covered under this warranty shall include but is not limited to the following:

framing and structural members, roofing and siding panels and seams, interior or exterior gutters and downspouts, accessories, fasteners, trim, flashings and miscellaneous building closure items such as doors (when furnished by the manufacturer), connectors, components, and fasteners, and other system components and assemblies installed to provide a weathertight system; and items specified in other sections of these specifications that become part of the metal building system. All material and workmanship deficiencies, system deterioration caused by exposure to the elements and/or inadequate resistance to specified service design loads, water leaks and wind uplift damage shall be repaired as approved by the Contracting Officer. See the attached Contractor's written warranty for issue resolution of warrantable defects. This warranty shall warrant and cover the entire cost of repair or replacement, including all material, labor, SECTION 13 34 19 Page 19 and related markups. The Contractor shall supplement this warranty with written warranties from the installer and/or system manufacturer, which shall be submitted along with Contractor's warranty. However, the Contractor is ultimately responsible for this warranty. The Contractor's written warranty shall be as outlined in attached WARRANTY FOR METAL BUILDING SYSTEMS, and start upon final acceptance of the facility. The Contractor shall provide a separate bond in an amount equal to the installed total metal building system cost in favor of the owner (Government) covering the Contractor's warranty responsibilities effective throughout the five year Contractor's warranty period for the entire metal building system as outlined above.

1.11.3 Manufacturer's Material and/or System Weathertightness Warranties

The Contractor shall furnish, in writing, the following manufacturer's material warranties to the Contracting Officer which cover all Metal Building System components:

a. A manufacturer's 20 year material warranty warranting that the specified aluminum, zinc-coated steel, aluminum-zinc alloy coated steel or aluminum-coated steel will not rupture, structurally fail, fracture, deteriorate, or become perforated under normal design atmospheric conditions and service design loads. Liability under this warranty shall be limited exclusively to the cost of either repairing or replacing nonconforming, ruptured, perforated, or structurally failed securement system including fasteners and coil material.

b. A manufacturer's 20 year exterior material finish warranty on the factory colored finish warranting that the finish, under normal atmospheric conditions at the site, will not crack, peel, or delaminate; chalk in excess of a numerical rating of eight, as determined by ASTM D 4214 test procedures; or change colors in excess of five CIE or Hunter Lab color difference (delta E) units in accordance with ASTM D 2224. Liability under this warranty is exclusively limited to replacing the defective coated material.

PART 2 PRODUCTS

2.1 STRUCTURAL FRAMING MATERIALS

2.1.1 W-Shapes

ASTM A 992/A 992M; ASTM A 572/A 572M or ASTM A 529/A 529M.

2.1.2 Channel, Angles, M-Shapes and S-Shapes

ASTM A 36/A 36M; ASTM A 572/A 572M or ASTM A 529/A 529M.

2.1.3 Plate and Bar

ASTM A 36/A 36M, ASTM A 572/A 572M or ASTM A 529/A 529M.

2.1.4 Steel Pipe

ASTM A 36/A 36M, ASTM A 53/A 53M, ASTM A 572/A 572M or ASTM A 529/A 529M.

SECTION 13 34 19 Page 20

2.1.5 Cold-Formed and Hot Formed Hollow Structural Sections

Cold formed:ASTM A 500/A 500M or ASTM B 221, ASTM B 221M. Hot-formed:

ASTM A 501.

2.1.6 Structural-Steel Sheet

Hot-rolled, ASTM A 1011/A 1011M or cold-rolled, ASTM A 1008/A 1008M.

2.1.7 Metallic-Coated Steel Sheet

ASTM A 653/A 653M, ASTM A 606.

2.1.8 Metallic-Coated Steel Sheet Pre-painted with Coil Stock Coating

Steel sheet metallic coated by the hot-dip process and pre-painted by the coil-coating process to comply with ASTM A 755/A 755M.

a. Zinc-Coated (Galvanized) Steel Sheet: ASTM A 653/A 653M, and

ASTM A 123/A 123M.

b. Aluminum-Zinc Alloy-Coated Steel Sheet: ASTM A 792/A 792M, and

ASTM A 463/A 463M.

2.1.9 High-Strength Bolts, Nuts, and Washers

ASTM A 325, heavy hex steel structural bolts; ASTM A 563 heavy hex carbon-steel nuts; and ASTM F 436 hardened carbon-steel washers.

Finish: Plain.

Tension-Control, High-Strength Bolt-Nut-Washer Assemblies: ASTM F 1852, heavy-hex-head steel structural bolts with spline.

Finish: Plain.

2.1.10 Non-High-Strength Bolts, Nuts, and Washers

ASTM A 307, ASTM A 563, and ASTM F 844.

Finish: Plain.

2.1.11 Anchor Rods

ASTM F 1554 and ASTM A 36/A 36M.

a. Configuration: Straight.

b. Nuts: ASTM A 563 heavy hex carbon steel.

c. Plate Washers: ASTM A 36/A 36M carbon steel.

d. Washers: ASTM F 436 hardened carbon steel.

e. Finish: Plain.

2.1.12 Threaded Rods

ASTM A 572/A 572M or ASTM A 36/A 36M.

a. Nuts: ASTM A 563 heavy hex carbon steel.

b. Washers: ASTM F 436 hardened carbon steel.

c. Finish: Plain.

SECTION 13 34 19 Page 21

2.1.13 Primer

SSPC-Paint 15, Type I, red oxide.

2.2 FABRICATION

2.2.1 General

Comply with MBMA MBSM - "Metal Building Systems Manual": Chapter IV, Section 9, "Fabrication and Erection Tolerances."

2.3 STRUCTURAL FRAMING

2.3.1 General

Clean all framing members to remove loose rust and mill scale. Provide 1 shop coat of primer to an average dry film thickness of 1 mil according to SSPC SP 2. Balance of painting and coating procedures must conform to SSPC Paint 15 and SSPC A.

2.3.2 Primary Framing

Manufacturer's standard structural primary framing system includes transverse and lean-to frames; rafter, rakes, and canopy beams; sidewall, intermediate, end-wall, and corner columns; and wind bracing designed to withstand required loads and specified requirements. Provide frames with attachment plates, bearing plates, and splice members. Provide frame span and spacing indicated.

Shop fabricate framing components by welding or by using high-strength bolts to the indicated size and section with base-plates, bearing plates, stiffeners, and other items required. Cut, form, punch, drill, and weld framing for bolted field erection.

a. Rigid Clear-Span Frames: I-shaped frame sections fabricated from shop-welded, built-up steel plates or structural-steel shapes.

Interior columns are not permitted.

b. Frame Configuration: Single gable.

c. Exterior Column Type: Tapered.

d. Rafter Type: Uniform depth.

2.3.3 Secondary Framing

Manufacturer's standard secondary framing members, including purlins, girts, eave struts, flange bracing, base members, gable angles, clips, headers, jambs, and other miscellaneous structural members. Provide secondary framing designed to resist required loads and specified requirements. Fabricate framing from cold-formed, structural-steel sheet or roll-formed, metallic-coated steel sheet pre-painted with coil coating, unless otherwise indicated.

Shop fabricate framing components by roll-forming or break-forming to the indicated size and section with base-plates, bearing plates, stiffeners, and other plates required for erection. Cut, form, punch, drill, and weld secondary framing for bolted field connections to primary framing.

SECTION 13 34 19 Page 22

a. Purlins: C or Z-shaped sections; fabricated from steel sheet, built-up steel plates, or structural-steel shapes; minimum depth as required to comply with system performance requirements.

b. Girts: C or Z-shaped sections; fabricated from steel sheet, built-up steel plates, or structural-steel shapes. Form ends of Z-sections with stiffening lips angled 40 to 50 degrees to flange minimum depth as required to comply with system performance requirements.

c. Eave Struts: Unequal-flange, C-shaped sections; fabricated from steel sheet, built-up steel plates, or structural-steel shapes; to provide adequate backup for metal panels.

d. Flange Bracing: Structural-steel angles or cold-formed structural tubing to stiffen primary frame flanges.

e. Sag Bracing: Threaded rods.

f. Base or Sill Angles: Zinc-coated (galvanized) steel sheet.

g. Purlin and Girt Clips: Steel sheet. Provide galvanized clips where clips are connected to galvanized framing members.

h. Secondary End-Wall Framing: Manufacturer's standard sections fabricated from structural-steel sheet.

i. Framing for Openings: Channel shapes; fabricated cold-formed, structural-steel sheet or structural-steel shapes. Frame head and jamb of door openings, and head, jamb, and sill of other openings.

j. Miscellaneous Structural Members: Manufacturer's standard sections fabricated from cold-formed, structural-steel sheet; built-up steel plates; or zinc-coated (galvanized) steel sheet; designed to withstand required loads.

2.3.4 Bracing

Provide adjustable wind bracing as follows:

a. Rods: ASTM A 36/A 36M; or ASTM A 572/A 572M; threaded a minimum of 6 inches at each end.

b. Cable: Will not be permitted.

c. Angles: Fabricated from structural-steel shapes to match primary framing, of size required to withstand design loads.

d. Rigid Portal Frames: Fabricate from shop-welded, built-up steel plates or structural-steel shapes to match primary framing; of size required to withstand design loads.

e. Diaphragm Action of Metal Panels: Design metal building to resist wind forces through diaphragm action of metal panels will not be permitted.

f. Bracing: Provide wind bracing using any method specified above, SECTION 13 34 19 Page 23 at manufacturer's option.

2.4 PANEL MATERIALS

2.4.1 Steel Sheet

Roll-form steel roof and wall panels to the specified profile, with fy = 50 ksi minimum, 22 gauge minimum, and depth as indicated. Material must be plumb and true, and within the tolerances listed:

a. Aluminum-Zinc Alloy-coated Steel Sheet conforming to ASTM A 792/A 792M and AISI SG03-3.

b. Individual panels to have continuous length to cover the entire length of any unbroken roof slope or 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;

1. Profile and coverage to be a minimum height and width from manufacturer's standard for the indicated roof slope or wall area.

2. Wall panel profile to be a 1-1/2 inch high rib at 12 inches o.c. with small stiffening ribs, 38 inch overall width with 36 inch coverage and exposed fasteners.

3. Roof panel profile to be a 1-3/4 inch high standing seam, 12 inch minimum coverage, with continuous mechanical seam crimping with concealed clips and fasteners.

4. Smooth, flat surface texture.

2.4.2 Finish

All panels are to receive a factory-applied Kynar 500/Hylar 5000 finish consisting of a baked-on top-coat with a manufacturer's recommended prime coat conforming to the following:

a. Metal Preparation: All metal is to have the surfaces carefully prepared 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.

b. Prime Coating: A base coat of epoxy paint, specifically formulated to interact with the top-coat, is to be applied to the prepared surfaces by roll coating to a dry film thickness of 0.20 + 0.05 mils.

This prime coat must be oven cured prior to application of finish coat.

c. Exterior Finish Coating: Apply the finish coating over the primer by roll coating to dry film thickness of 0.80 + 5 mils for a total dry film thickness of 1.00 + 0.10 mils. This finish coat must be oven-cured.

d. 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. The wash-coat

SECTION 13 34 19 Page 24 must be oven-cured.

e. Color: The exterior finish chosen from the manufacturer's color charts and chips.

f. Physical Properties: Coating must conform to the industry and manufacturer's standard performance criteria as listed by the following certified test reports:

Chalking: ASTM DEF Color Change and Conformity: ASTM D 2244 Weatherometer: ASTM G 23 and ASTM D 822 Humidity: ASTM D 2247 and ASTM D 714 Salt Spray: ASTM B 117 Chemical Pollution: ASTM D 1308 Gloss at 60°: ASTM D 523 Pencil Hardness: ASTM D 3363 Reverse Impact: ASTM D 2794 Flexibility: ASTM D 522 Abrasion: ASTM D 968 Flame Spread: ASTM E 84

2.4.3 Repair Of Finish Protection

Repair paint for color finish enameled metal panel must be compatible paint of the same formula and color as the specified finish furnished by the metal panel manufacturer, conforming to ASTM A 780.

2.5 MISCELLANEOUS METAL FRAMING

2.5.1 General

Cold-formed metallic-coated steel sheet conforming to ASTM A 653/A 653M.

2.5.2 Fasteners for Miscellaneous Metal Framing

Refer to the following paragraph "FASTENERS".

2.6 FASTENERS

2.6.1 General

Type, material, corrosion resistance, size and sufficient length to penetrate the supporting member a minimum of 1 inch with other properties required to fasten miscellaneous metal framing members to substrates in accordance with the metal panel manufacturer's and ASCE/SEI 7-05 requirements.

2.6.2 Exposed Fasteners

Fasteners for metal panels to be corrosion resistant coated steel, aluminum, 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 to be the manufacturer's standard. Provide an integral metal washer matching the color of attached material with compressible sealing EPDM gasket approximately 3/32 inch thick.

SECTION 13 34 19 Page 25

2.6.3 Screws

Screws to be corrosion resistant coated steel, aluminum and/or stainless steel being the type and size recommended by the manufacturer to meet the performance requirements.

2.6.4 Rivets

Rivets to be closed-end type, corrosion resistant coated steel, aluminum or stainless steel where watertight connections are required.

2.6.5 Attachment Clips

Fabricate clips from steel hot-dipped galvanized in accordance with ASTM A 653/A 653M or Series 300 stainless steel. Size, shape, thickness and capacity as required meeting the insulation thickness and design load criteria specified.

2.7 FRAMES AND MATERIALS FOR OPENINGS

2.7.1 Doors

Non-Fire-Rated Door Assemblies as specified in Division 08 - OPENINGS unless other wise indicated.

2.8 ACCESSORIES

2.8.1 General

All accessories to be compatible with the metal panels; sheet metal flashing, trim, metal closure strips, caps and similar metal accessories must not be less than the minimum thickness specified for the metal panels.

Exposed metal accessories/finishes to match the panels furnished, except as otherwise indicated. Molded foam rib, ridge and other closure strips to be non-absorbent closed-cell or solid-cell synthetic rubber or pre-molded neoprene to match configuration of…