Amendment 0002 revised specifications.pdf

West Side Storage/Boat Shed W912P620B0012

e. Application of membrane-forming curing compound conforming to ASTM C 309 , Type 1-D, on surfaces permanently exposed to view and Type 2 on other surfaces shall be accomplished in accordance with manufacturer's instructions.

The preservation of moisture for concrete surfaces placed against wooden forms shall be accomplished by keeping the forms continuously wet for sevent (7) days , except for concrete made with Type III cement, three (3) days. If forms are removed prior to end of the required curing period, other curing methods shall be used for the balance of the curing period.

During the period of protection removal, the temperature of the air in contact with the concrete shall not be allowed to drop more than 25 degrees F within a 24 hour period.

3.7 REMOVAL OF FORMS

Forms shall be removed in a manner that will prevent injury to the concrete and ensure the complete safety of the structure. Formwork for walls, and other parts not supporting the weight of concrete may be removed when the concrete has attained sufficient strength to resist damage from the removal operation but not before at least 24 hours has elapsed since concrete placement. Supporting forms and shores shall not be removed from walls until the structural units are strong enough to carry their own weight and any other construction or natural loads. In no case will supporting forms or shores be removed before the concrete strength has reached 70 percent of design strengths as determined by field cured cylinders or other approved methods. This strength shall be demonstrated by job cured test specimens, and by a structural analysis considering the proposed loads in relation to these test strengths and the strength of forming and shoring system. The job cured test specimens for form removal purposes shall be provided in numbers as directed and shall be in addition to those required for concrete quality control. The specimens shall be removed from molds at the age of 24 hours and shall receive, insofar as possible, the same curing and protection as the structures they represent.

3.8 INTERIOR CONCRETE FLOOR PROTECTION

Liquid densifier and sealant must be equivalent to Government approved sealants that required to make the concrete surface less permeable to the liquids.It is recommended that 28 days of hardening occur before applying a liquid densifier.

3.9 TESTS AND INSPECTIONS

3.9.1 General

The individuals who sample and test concrete as required in this specification shall have demonstrated a knowledge and ability to perform the necessary test procedures equivalent to the ACI minimum guidelines for certification of Concrete Field Testing Technicians, Grade I.

3.9.2 Inspection Details and Frequency of Testing

3.9.2.1 Preparations for Placing

Foundation or construction joints, forms, and embedded items shall be inspected in sufficient time prior to each concrete placement by the Contractor to certify that it is ready to receive concrete.

SECTION 03 30 00 Page 17

AMD_2 - 09/10/20

SECTION TABLE OF CONTENTS

DIVISION 13 - SPECIAL CONSTRUCTION

SECTION 13 34 19

METAL BUILDING SYSTEM

05/15

PART 1 GENERAL

1.1 REFERENCES

1.2 GENERAL REQUIREMENTS

1.2.1 Structural Performance

1.2.1.1 Engineering

1.2.1.2 Design Loads

1.2.1.3 Roof Live Loads

1.2.1.4 Roof Snow Load

1.2.1.5 Wind Load

1.2.1.6 Seismic Load

1.2.1.7 Dead Load

1.2.1.8 Collateral Load

1.2.1.9 Deflection Limits

1.2.2 Thermal Movements

1.2.3 Wind Uplift Resistance

1.3 DEFINITIONS

1.4 SYSTEM DESCRIPTION

1.4.1 Building Length

1.4.2 Building Width

1.4.3 Primary Frame Type

1.4.4 End-Wall Framing

1.4.5 Secondary Frame Type

1.4.6 Eave Height

1.4.7 Clear Height

1.4.8 Bay Length

1.4.9 Roof Slope

1.4.10 Roof System

1.4.11 Exterior Wall System

1.4.12 Metal Building Structure and Connections

1.5 SUBMITTALS

1.5.1 STORAGE BUILDING DESIGN ANALYSIS AND DRAWINGS

1.5.1.1 Product and Installation Information

1.5.1.2 Erection Drawings

1.5.1.3 Certifications

1.5.1.4 Warranty Documentation

1.5.1.5 Color Samples

1.5.1.6 Design Calculations

1.6 QUALITY ASSURANCE

1.6.1 Manufacturer's Qualifications

1.6.2 Qualification of Erection Contractor

1.7 DELIVERY, STORAGE, AND HANDLING

1.7.1 Delivery and Acceptance Requirements

1.7.2 Storage and Handling Requirements

1.8 WARRANTIES

PART 2 PRODUCTS

SECTION 13 34 19 Page 1

AMD_2 - 09/11/20

2.1 STRUCTURAL FRAMING MATERIALS

2.1.1 Structural Steel

2.1.2 Primary Framing

2.1.2.1 Rigid Frames

2.1.2.2 Endwall Structural Members

2.1.3 Secondary Structural Members

2.1.3.1 Purlins

2.1.3.2 Eave Struts

2.1.3.3 Girts

2.1.3.4 Bracing

2.1.4 Welding

2.1.5 Painting of Structural Steel Framing System

2.1.5.1 General

2.1.5.2 Primary Frames

2.1.5.3 Secondary Structural Members - Roll-Formed

2.2 METAL ROOF SYSTEM

2.2.1 General

2.2.2 Roof System Design

2.2.3 Roof Panels

2.2.4 Provisions for Thermal Movements

2.2.5 Fasteners

2.2.6 Accessories

2.3 METAL WALL SYSTEM

2.3.1 General

2.3.2 Metal Wall Panels

2.3.3 Fasteners

2.3.4 Accessories

2.4 INSULATION

2.4.1 Roof Insulation

2.4.2 Wall Insulation

2.4.3 Roof and Wall Insulation Facing

2.4.4 Provisions for Thermal Movements

2.4.5 Fasteners

2.5 SHEET METAL FLASHING AND TRIM

2.5.1 Fabrication

2.6 FRAMES AND MATERIALS FOR OPENINGS

2.6.1 Doors

2.6.1.1 Interior Doors

2.6.1.2 Exterior Doors

2.6.1.3 Roll-up Garage Doors

PART 3 EXECUTION

3.1 EXAMINATION

3.2 PREPARATION

3.3 ERECTION OF STRUCTURAL STEEL FRAMING SYSTEM

3.4 METAL ROOF PANEL INSTALLATION

3.5 METAL WALL PANEL INSTALLATION

3.6 METAL PANEL FASTENER INSTALLATION

3.7 FLASHING, TRIM, AND CLOSURE INSTALLATION

3.8 ACCESSORY INSTALLATION

3.8.1 General

3.8.2 Dissimilar Metals

3.8.3 Gutters and Downspouts

3.8.4 Insulation

3.8.5 Roof and Wall Accessories and Specialties

3.9 CLEAN-UP AND PROTECTION

3.9.1 Structural Framing

3.9.2 Metal Panels

SECTION 13 34 19 Page 2

3.9.3 Touch-Up Painting

-- End of Section Table of Contents --

SECTION 13 34 19 Page 3

SECTION 13 34 19

METAL BUILDING SYSTEM

05/15

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 IRON AND STEEL INSTITUTE (AISI)

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

AISI S100 (2016) North American Specification for the Design of Cold-Formed Steel Structural Members

AISI SG03-3 (2002; Suppl 2001-2004; R 2008) Cold-Formed Steel Design Manual Set

AMERICAN SOCIETY OF CIVIL ENGINEERS (ASCE)

ASCE 7 (2016; Errata 2011; Supp 1 2013) Minimum Design Loads for Buildings and Other Structures

AMERICAN WELDING SOCIETY (AWS)

AWS D1.1/D1.1M (2020; Errata 2011) Structural Welding Code - Steel

AWS D1.3/D1.3M (2018; Errata 2008) Structural Welding Code - Sheet Steel

AMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC)

AISC 325 (2017) Steel Construction Manual

AISC 341 (2016) Seismic Provisions for Structural Steel Buildings

AISC 360 (2016) Specification for Structural Steel Buildings

ASTM INTERNATIONAL (ASTM)

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

SECTION 13 34 19 Page 4

ASTM A 792/A792M (2015) Standard Specification for Steel Sheet, 55% Aluminum-Zinc Alloy-Coated by the Hot-Dip Process

ASTM D 2244 (2016) Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates

ASTM D 4214 (2015) Standard Test Method for Evaluating the Degree of Chalking of Exterior Paint Films

ASTM DEFONLINE (2008) ASTM Online Dictionary of Engineering Science and Technology

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

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 80 (2016; TIA 16-1) Standard for Fire Doors and Other Opening Protectives

NFPA 252 (2017) Standard Methods of Fire Tests of Door Assemblies

NATIONAL ROOFING CONTRACTORS ASSOCIATION (NRCA)

NRCA RoofMan (2011 thru 2014) The NRCA Roofing Manual

STEEL DOOR INSTITUTE (SDI/DOOR)

SDI/DOOR A250.8 (2003; R2008) Recommended Specifications for Standard Steel Doors and Frames

SHEET METAL AND AIR CONDITIONING CONTRACTORS' NATIONAL ASSOCIATION

(SMACNA)

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

SOCIETY FOR PROTECTIVE COATINGS (SSPC)

SSPC Paint 25 (1997; E 2004) Zinc Oxide, Alkyd, Linseed Oil Primer for Use Over Hand Cleaned Steel, Type I and Type II

SSPC SP 2 (1982; E 2000; E 2004) Hand Tool Cleaning

METAL BUILDING MANUFACTURERS ASSOCIATION (MBMA)

MBMA MBSM (2012) Metal Building Systems Manual

UNDERWRITERS LABORATORIES (UL)

UL 580 (2006; Reprint Oct 2013) Tests for Uplift Resistance of Roof Assemblies

SECTION 13 34 19 Page 5

1.2 GENERAL REQUIREMENTS

1.2.1 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. The Government will review the Contractor's submitted design loads criteria to ensure the minimum safe loads per the applicable codes for the region and building type are achieved for the PEMB (Pre-Engineered Metal Building). Refer to sheet S-001 for design criteria.

1.2.1.1 Engineering

Design metal building systems conforming to procedures described in

MBMA MBSM.

1.2.1.2 Design Loads

Conform to the requirements of MBMA MBSM and ASCE 16. Design for Occupancy Category II (Standard Occupancy Structure).

1.2.1.3 Roof Live Loads

Include all vertical loads induced by the building occupancy , as well as loads induced by maintenance workers, materials and equipment for roof live loads. Roof live load shall be not be reduced.

1.2.1.4 Roof Snow Load

Include vertical loads induced by the ground snow load at the project site per MBMA and ASCE 7-16. Allow for unbalanced and drift loads.

1.2.1.5 Wind Load

Include horizontal loads induced by wind speeds given in ASCE 7 at the project site.

1.2.1.6 Seismic Load

Design and engineer metal building system capable of withstanding the effects of earthquake motions determined according to ASCE 7 and AISC 341 .

1.2.1.7 Dead Load

Dead load shall consist of the weight of building system construction, such as roof, framing, and covering members.

1.2.1.8 Collateral Load

Collateral load in pounds per square foot 5 psf shall be applied to the entire structure to account for the weight of additional permanent materials other than the building system, such as mechanical systems, electrical systems, and hung partitions.

This allowance does not include the weight of hung equipment weighing 50 pounds or more.

Equipment loads of 50 pounds or more shall be indicated on the Drawings

SECTION 13 34 19 Page 6 and the structure shall be strengthened as required.

The Government will provide the metal building system manufacturer with the magnitude and approximate location of concentrated loads greater than 50 pounds before design of the building starts.

1.2.1.9 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 1/180 of the span.

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

d. Exterior Metal Wall Panels; horizontal deflection of 1/ 180240 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

ASTM E1592.

1.2.2 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:

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

1.2.3 Wind Uplift Resistance

Provide metal roof panel assemblies that comply with UL 580 for Class 90 and ASTM E1592 for structural performance under uniform static air pressure difference.

1.3 DEFINITIONS

ASTM DEFONLINE 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.

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

SECTION 13 34 19 Page 7 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 top of 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. Structural Line: Reference line at inside face of wall sheet.

1.4 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.

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

1.4.1 Building Length

Actual building length as indicated in the drawings. is 100 feet , as measured between structural lines .

1.4.2 Building Width

Actual building width as indicated in the drawings. is 40 feet , as measured between structural lines .

1.4.3 Primary Frame Type

Design structural system as rigid clear frame without interior columns, with tapered or straight columns and roof beams, with gabled roof.

1.4.4 End-Wall Framing

Provide manufacturer's standard end wall, with endwall corner posts, endwall roof beams, and endwall posts as required by design criteria.

1.4.5 Secondary Frame Type

Provide manufacturer's standard purlins, struts and girts.

1.4.6 Eave Height

Eave height must be indicated by nominal height on Drawings and satisfy the minimum clear height.

SECTION 13 34 19 Page 8

1.4.7 Clear Height

Clear height as described in paragraph 1.3 above must be at least 18 feet.

1.4.8 Bay Length

There shall be as indicated in the drawings five (8) bays with a nominal Bay Length of 12 feet each and laid our as shown on the drawings.

1.4.9 Roof Slope

Roof slope must be at least 1 inch per 12 inches .

1.4.10 Roof System

Provide manufacturer's standard standing seam metal roof panels with insulation.

1.4.11 Exterior Wall System

Provide manufacturer's standard field-assembled or factory-assembled , insulated metal wall panels single skin metal panel with interior insulation .

1.4.12 Metal Building Structure and Connections

Design of the metal building structure and connections shall be carried out by a Registered Professional Engineer in the State of Illinois.

The design of anchor bolts and base plates shall be indicated on anchor bolt layout drawings furnished by the metal building system manufacturer.

Anchor bolts on moment-resisting column bases shall include nuts above and below base plates. Anchor bolts and accessories shall be supplied by Contractor.

1.5 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. The following must be submitted in accordance with Section 01 33 00 , SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Storage Building Design Analysis and Drawings ; G, DT

Manufacturer's Qualifications ; G, CN

SD-02 Shop Drawings

Erection Drawings ; G, DT

SD-03 Product Data

Product and Installation Information ; G, DT

SD-04 Samples

Color Samples ; G, OA

SECTION 13 34 19 Page 9

SD-05 Design Data

Photometric Plan ; G, DT

Design Calculations ; G, DT

Roof Panels ; G, DTCN

Wall Panels ; G, DTCN

Structural Performance ; G, DT

SD-07 Certificates

Certifications ; G, DTCN

Qualification of Erection Contractor ; G, DTCN

SD-11 Closeout Submittals

Warranty Documentation ; G, CN

1.5.1 STORAGE BUILDING DESIGN ANALYSIS AND DRAWINGS

The Contractor shall perform and submit a design analysis for the proposed PEMB and show all the results of the structural members and the reactions at the building supports. The loads and structural calculations should meet the applicable codes and requirements indicated in the structural drawings. In addition, the Contractor shall submit the drawing set of the structural components which includes plans, elevations, sections, and details.

Also, the Contractor shall provide a REVIT 3-D model for the building that includes all the building structural components.

The Contractor shall provide design drawings showing the layout of the storage building components. Component sizing information, dimensions and the arrangement of electrical and mechanical equipment must be illustrated on the drawing.

The Contractor shall provide a design analysis and drawings of the storage building incorporating the Government provided mechanical and electrical design features shown on the drawings and detailed in the specifications.

The submittal must include the analysis, design documents, and construction drawings required to construct the Government provided mechanical, and electrical features outlined in Section 26 05 00.00 40 , ELECTRICAL WORK, Section 33 11 00 , WATER DISTRIBUTION, and Section 33 30 00 , SANITARY SEWERS in addition to submittals noted below.

Submit layout plan for thermostats, Ground Fault Interrupter (GFI) protected outlets, access control system panel and wiring, and lighting panel including manual override switches for each floodlight fixture.

All storage building design analysis, drawings, product data, certifications, warranty documentation, and color samples must be submitted within time allowances specified in Section 01 11 00 , SUMMARY OF

WORK.

SECTION 13 34 19 Page 10

1.5.1.1 Product and Installation Information

Submit metal building system manufacturer's product information, specifications, and installation instructions for building components and accessories.

1.5.1.2 Erection Drawings

Submit metal building system manufacturer's erection drawings, including plans, elevations, sections, and details, indicating roof framing, transverse cross-sections, covering and trim details, and accessory installation details to clearly indicate proper assembly of building components.

1.5.1.3 Certifications

The Contractor shall provide certified engineering calculations, from the building manufacturer, 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 Load

The Contractor shall submit certification verifying that the metal building system components including but not limited to the roof and wall systems have meet the applicable standards for the components as described below and all applicable industry standard tests.

Submit certification verifying that the metal standing seam roof system has been tested in accordance with ASTM E1592 test protocols.

1.5.1.4 Warranty Documentation

Submit manufacturer's standard warranty meeting minimum requirements set forth in section 1.8 Warranties.

1.5.1.5 Color Samples

Submit building roof, wall panel, and trim color samples on the same metal-type used for the respective building components.

1.5.1.6 Photometric Plan

The Contractor shall submit photometric plans for interior and both general and security exterior lighting.

1.5.1.6 Design Calculations

The Contractor shall submit design calculations, from the building

SECTION 13 34 19 Page 11 manufacturer, stamped and signed by a Registered Professional Engineer in the State of Illinois.

1.6 QUALITY ASSURANCE

1.6.1 Manufacturer's Qualifications

The Contractor shall provide certification that the metal building system manufacturer has a minimum of ten (10) years experience as a qualified manufacturer of metal building systems and accessory products.

The Metal building system manufacturer shall provide engineering services by a licensed Registered Professional Engineer in the state of Illinois, having a minimum of four years experience as an engineer knowledgeable in building design analysis, protocols and procedures for the "Metal Building Systems Manual" ( MBMA MBSM); ASCE 7, the applicable Illinois building codes and ASTM E1592.

1.6.2 Qualification of Erection Contractor

The Erection Contractor shall be 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.

a. Be regularly engaged, for past five (5) years, in installation of metal building systems of similar type to that specified.

b. Employ persons trained for installation of metal building systems.

1.7 DELIVERY, STORAGE, AND HANDLING

1.7.1 Delivery and Acceptance Requirements

Deliver materials to site in manufacturer's original, unopened containers and packaging, with labels clearly identifying product name and manufacturer.

1.7.2 Storage and Handling Requirements

Store and handle materials in accordance with manufacturer's instructions.

Keep materials in manufacturer's original, unopened containers and packaging until installation.

Do not store materials directly on ground.

Store materials on flat, level surface, raised above ground, with adequate support to prevent sagging.

Protect materials and finish during storage, handling, and installation to prevent damage.

1.8 WARRANTIES

Metal building system manufacturer must provide a written weathertight warranty for 25 years against leaks in roof panels, arising out of or caused by ordinary wear and tear under normal weather and atmospheric conditions.

SECTION 13 34 19 Page 12

Warranty must be signed by both the metal roof system manufacturer and the metal roof system installer.

Metal building system manufacturer must provide a written warranty for 25 years against perforation of metal roof panels due to corrosion under normal weather and atmospheric conditions. Warranty must be signed by metal roof system manufacturer.

Metal building system manufacturer must provide a paint film written warranty for 25 years against cracking, peeling, chalking, and fading of exterior coating on painted roof and wall panels.

Warranty must be signed by metal building system or roof system manufacturer and state that the coating contains 70 percent Government approved resin.

Metal building system manufacturer must warrant that the coating shall not peel, crack, or chip for 25 years.

For a period of 25 years, chalking must not exceed ASTM D 4214, #8 rating and shall not fade more than five (5) color difference units in accordance with ASTM D 2244 .

PART 2 PRODUCTS

2.1 STRUCTURAL FRAMING MATERIALS

2.1.1 Structural Steel

a. Structural Mill Sections or Welded-Up Plate Sections. Comply with AISC 325 and AISC 360 for design requirements and allowable stresses.

b. Cold-Formed Steel Structural Members. Comply with AISC/AISI 121 and AISI S100 for design requirements and allowable stresses.

c. Design in accordance with Illinois loads and building codes.

2.1.2 Primary Framing

2.1.2.1 Rigid Frames

a. Frames. Welded-up plate section columns and roof beams, complete with necessary splice plates for bolted field assembly.

b. Base Plates, Cap Plates, Compression Splice Plates, and Stiffener Plates. Factory welded into place and connection holes factory fabricated.

c. Columns and Roof Beams. Fabricated complete with holes in webs and flanges for attachment of secondary structural members and bracing, except for fieldwork as noted on erection drawings furnished by metal building system manufacturer.

d. Bolts for Field Assembly of Frame Members. ASTM A 325 high-strength bolts as indicated on erection drawings furnished by metal building system manufacturer.

SECTION 13 34 19 Page 13

2.1.2.2 Endwall Structural Members

Cold-formed channel members designed in accordance with AISI North American Specification for the Design of Cold-Formed Steel Structural Members or welded-up plate sections designed in accordance with AISC Specification for Structural Steel Buildings.

a. Endwall Frames. Endwall corner posts, endwall roof beams, and endwall posts as required by design criteria.

b. Splice Plates and Base Clips. Shop fabricated complete with bolt connection holes.

c. Base Plates, Cap Plates, Compression Splice Plates, and Stiffener Plates. Factory welded into place and connection holes shop fabricated.

d. Beams and Posts. Factory fabricated complete with holes for attachment of secondary structural members, except for field work as noted on erection drawings furnished by metal building system manufacturer.

Substitute intermediate frames for end-wall roof beams, when specified.

Factory fabricate necessary endwall posts and holes for connection to intermediate frame used in endwall.

2.1.3 Secondary Structural Members

2.1.3.1 Purlins

Provide "C" or "Z"-shaped, precision-roll-formed, acrylic-coated G30 galvanized steel in different gauges to meet specified loading conditions.

Use 7-inch, 8-1/2-inch, 10-inch, or 11-1/2-inch-deep "Z" sections.

Outer flanges of purlins shall have factory-punched holes for panel connections. Attach purlins to main frames and endwalls by 1/2-inch diameter bolts through end seat of truss purlin. Brace purlins on top and bottom chords spaced at intervals indicated on erection drawings furnished by metal building system manufacturer. Place any concentrated loads to be hung at purlin panel points.

2.1.3.2 Eave Struts

Provide factory punched 7-inch, 8-1/2-inch, 10-inch, or 11-1/2-inch- deep "C" sections, precision-roll-formed, acrylic-coated G30 galvanized steel in different gauges to meet specified loading conditions.

2.1.3.3 Girts

Provide "Z" or "C"-shaped, precision-roll-formed, acrylic-coated G30 galvanized steel in different gauges to meet specified loading conditions.

Use 7-inch, 8-1/2-inch, 10-inch, or 11-1/2-inch-deep "Z" or "C" sections.

Outer flanges of girts shall have factory-punched holes for panel connections.

2.1.3.4 Bracing

Locate bracing on the Drawings. Diagonal bracing members must be

SECTION 13 34 19 Page 14 hot-rolled rods of sizes and indicated on the Drawings. Attach to columns and roof beams.

Optional fixed-base wind posts or pinned-base portal frames may be substituted for wall rod bracing on buildings as required.

Flange braces and purlin braces must be cold formed.

2.1.4 Welding

Qualify welding procedures, personnel, and welding quality standards according to AWS D1.1/D1.1M and AWS D1.3/D1.3M . Welding inspection other than visual inspection as defined by AWS D1.1/D1.1M , paragraph 6.9, must be identified and negotiated before bidding.

Supply certification of welder qualifications upon request.

2.1.5 Painting of Structural Steel Framing System

2.1.5.1 General

Before painting, clean steel of loose rust, loose mill scale, dirt, and other foreign materials. Provide one (1) shop coat of primer to an average dry film thickness of one (1) mil according to SSPC SP 2 for structural steel as temporary protection against ordinary atmospheric conditions.

Perform subsequent finish painting in field.

2.1.5.2 Primary Frames

Clean steel in accordance with SSPC SP 2 . Factory paint steel with 1 coat of gray water-reducible alkyd primer paint formulated to equal or exceed performance requirements of SSPC Paint 25 , to a minimum coating thickness of 1.0 mil.

2.1.5.3 Secondary Structural Members - Roll-Formed

Apply hot-dipped zinc coating per ASTM A653/A653M G30, followed by one (1) coat of clear acrylic finish, equal to or exceeding performance requirements of SSPC Paint 25 .

2.2 METAL ROOF SYSTEM

2.2.1 General

Metal roof system shall be submitted for Government review.

2.2.2 Roof System Design

Comply with AISI S100 for design requirements and allowable stresses for roof panels. Design roof paneling system to support design live, snow, and wind loads. Allow roof panels to move relative to wall panels and/or parapets as roof expands and contracts with temperature changes. Design roof paneling system for a minimum roof slope of one (1) inch in 12 inches.

2.2.3 Roof Panels

Roll-form steel roof panels to the specified profile, with fy = 24 gauge and depth as indicated. Use panels of maximum possible length to minimize end laps. Material must be plumb and true, and within the tolerances

SECTION 13 34 19 Page 15 listed:

a. Galvanized Steel Sheet conforming to ASTM A653/A653M , G90 coating and

AISI SG03-3 .

b. Individual panels to have continuous length to cover the entire length of any unbroken roof slope 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 to be a 2 inch high rib ( 2-3/4 inch including seam) at 24 inches o.c. with two (2) major corrugations, 24 inch overall wi dth.

(2) flat of the panel to have cross flutes 6 inches o.c., perpendicular to major corrugations in entire length of panel to reduce wind noise.

d. Variable Width Panels. For roof lengths not evenly divisible by the two (2) foot panel width, factory-manufactured variable-width (9-inch, 12-inch, 15-inch, 18-inch, and 21-inch-wide) panels shall be used to ensure modular, weathertight roof installation. Minimum panel length shall be 15 feet . Supply maximum possible panel lengths to minimize end laps.

e. Finish. Roof color shall be comparable to that on the existing storage building and facility operations building. Paint with exterior colors equivalent to Government approved finish system , full-strength, 70 percent fluoropolymer (PVDF) coating equivalent to Government approved coating. Metal building system manufacturer shall warrant PVDF coating for 25 years for the following:

Not to peel, crack, or chip.

Chalking. Not to exceed ASTM D 4214 , #8 rating.

Fading. Not more than five (5) color-difference units per ASTM D 2244 .

f. Eave Panels. Extend eave panels beyond structural line of sidewalls.

Factory punch panels at panel end to match factory-punched holes in eave structural member.

g. Panel End Splices. Factory punched and factory notched .

h. Panel End Laps. Locate directly over , but not fastened to, that fasten to the a supporting secondary roof structural member and must be staggered, to avoid 4-panel lap-splice condition. Maintain a minimum of six (6) inches, seal with weather sealing compound and fasten together by clamping plates.

i. End Laps. Provide floating end laps to allow roof panels to expand and contract with roof panel temperature changes.

j. Side Laps. 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

SECTION 13 34 19 Page 16 weather-tight and minimize noise from movements within panel assembly. Factory apply side lap sealant.

k. Self-Drilling Fasteners . Not are permitted.

l. Ridge Assembly. Design ridge assembly to allow roof panels to move lengthwise with expansion and contraction as roof panel temperature changes. Factory punch parts for correct field assembly. Install panel closures and interior reinforcing straps to seal panel ends at ridge.

Do not expose attachment fasteners on weather side. Use lock seam plug to seal lock seam portion of panel. Design high-tensile steel ridge cover to span from panel closure to panel closure and flex as roof system expands and contracts.

2.2.4 Provisions for Thermal Movements

Provide clips with movable tab for thermal expansion movement of roof panels. Tabs must be stainless steel and factory centered on roof clip when installed to ensure full movement in either direction. Design such that maximum force of 8 pounds required to initiate tab movement. Each clip must accommodate a minimum of 1 1/4 inch movement in either direction.

Provide for thermal expansion and contraction without detrimental effects on roof panels, with plus or minus 100-degree Fahrenheit temperature difference between interior structural framework of building and of roof panels.

2.2.5 Fasteners

Make connections of roof panels to structural members , except at eaves, with clips with movable stainless steel tabs, seamed into standing seam side lap.

Fasten panel clips to structural members with Government approved fasteners in accordance with erection drawings furnished by metal building system manufacturer , using factory-punched holes in structural members .

Fasteners must be metal-backed rubber washer to serve as torque indicator.

Exposed fasteners penetrating metal roof membrane at the following locations must not exceed the frequency listed below:

a. Basic Panel System. Zero (0) per square foot.

b. High Eave Trim, No Parapet. Two (2) per linear foot.

c. Exterior Eave Gutter. Two (2) per linear foot.

d. Panel Splices. Two (2) per linear foot.

e. Gable Trim. Zero (0) per linear foot.

f. Eave with Parapet. Zero (0) per linear foot.

g. Ridge. Zero (0) per linear foot.

h. Low Eave Structural. One-and-a-half (1.5) per linear foot.

2.2.6 Accessories

Provide standard accessories (e.g., gutters, downspouts and fascia) per

SECTION 13 34 19 Page 17 metal building system manufacturer. Exterior metal coating on gutters, downspouts, gable trim, and eave trim must be equivalent to Government approved finish system, full-strength, 70 percent fluoropolymer (PVDF) coating equivalent to Government approved coatings. Indicate locations of standard accessories on erection drawings furnished by metal building system manufacturer.

Material used in flashing and transition parts and furnished as standard by metal building system manufacturer may or may not match roof panel material. Provide compatible parts that will not cause a corrosive condition. Do not use copper and lead materials with Galvalume (or Government approved technical equivalent) panels. Minimize heat loss (thermal short circuit) caused by compression of blanket insulation between structural members and roof panels by use of thermal block at each purlin location.

2.3 METAL WALL SYSTEM

2.3.1 General

Install exterior wall system that complies with AISI S100 for design requirements and allowable stresses for wall panels.

2.3.2 Metal Wall Panels

Roll-form steel wall panels to the specified profile, with fy = 26 or 24 gauge 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/A792M and AISI SG03-3 , approximately 55 percent aluminum, 45 percent zinc.

b. Individual panels to have 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.

c. Provide panels with thermal expansion and contraction consistent with the type of system specified below.

(1) profile to be a 1-7/16 inch high corrugation at 12 inches o.c., four (4) major corrugations with two (2) minor corrugations between each of the major corrugations along entire length of panel, 36 inch overall width.

(2) One (1) single piece from base to building eave.

(3) Fastener alignment groove to center fastener within each panel corrugation.

d. Exposed Panel Side Laps: Hemmed to eliminate raw cut panel edge.

e. Upper End of Panels. Fabricate with mitered cut to match corrugations of roof panels that must be equivalent to Government approved panels of 1/2 inch to 12 inches and square cut for all other roof panels and slopes.

f. Factory punch or field drill wall panels at panel ends and match factory-punched or field-drilled holes in structural members for

SECTION 13 34 19 Page 18 proper alignment.

g. Finish. Wall panel color shall be comparable to that on the existing storage building and facility operations building. Paint with exterior colors equivalent to Government approved finish system, full-strength, 70 percent fluoropolymer (PVDF) coating that equivalent to Government approved coatings. Metal building system manufacturer shall warrant PVDF coating for 25 years for the following:

(1) Not to peel, crack, or chip.

(2) Chalking. Not to exceed ASTM D 4214 , #8 rating.

(3) Fading. Not more than five (5) color-difference units per

ASTM D 2244 .

h. Accommodate special materials, gauges, or colors as applicable for custom designs.

2.3.3 Fasteners

Provide fasteners per the following:

a. Wall Panel-to-Structural Connections. Torx-head or Torx hex -head self-drilling screws equivalent to Government approved screws.

b. Wall Panel-to-Panel Connections. Torx-head or hex-head self-drilling screws.

Indicate fastener locations on erection drawings furnished by metal building system manufacturer. Factory paint all exposed fasteners to match wall color.

2.3.4 Accessories

Provide standard accessories (e.g., doors, windows, louvers) per metal building system manufacturer, unless otherwise noted and furnished as specified. Indicate locations of all standard accessories on erection drawings furnished by metal building system manufacturer.

2.4 INSULATION

2.4.1 Roof Insulation

Nominal thickness of roof insulation to be a minimum of 9 inches .

Certified R-Value: 30.

2.4.2 Wall Insulation

Nominal thickness of wall insulation to be a minimum of 6 inches .

Certified R-Value: 19.

2.4.3 Roof and Wall Insulation Facing

Insulation to be equivalent to Government approved insulations with the following characteristics:

a. 0.0015-inch-thick, UV-stabilized, white polypropylene film laminated to 30-pound paper/metalized polyester equivalent to Government

SECTION 13 34 19 Page 19 approved insulations, reinforced with glass-fiber and polyester scrim.

b. Adhere facing to Fiberglas equivalent to Government approved fiberglases, "Certified R", NAIMA 202, fiberglass blanket.

c. Assembly of Insulation Blanket and Facing:

(1) Flame Spread Rating: Less than 25.

(2) Perm Rating: 0.02.

(3) Minimum Blanket Insulation Thickness: Two (2) inches.

(4) Submit UL Label as specified in Submittals article of this section.

2.4.4 Provisions for Thermal Movements

Provide for thermal expansion and contraction without detrimental effects on roof system.

2.4.5 Fasteners

Install sub-structural and liner panels with self-drilling screws for attachment. Roof attachment fasteners shall be as specified under METAL ROOF SYSTEM in this specification section.

2.5 SHEET METAL FLASHING AND TRIM

2.5.1 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.

Exterior trim color shall be comparable to that on the existing storage building and facility operations building. Apply same finish as exterior color of wall panels, except for Gutters, Downspouts, Eave Trim, Gable Trim, Door-Side Flashings, and Header Flashings. Paint with exterior colors equivalent to Government approved finish system , full-strength, 70 percent fluoropolymer (PVDF) coating equivalent to Government approved coatings in standard color of metal building system manufacturer.

2.6 FRAMES AND MATERIALS FOR OPENINGS

2.6.1 Doors

The Contractor shall provide Fire-Rated and Non-Fire-Rated Door Assemblies, where required, conforming with NFPA 80 and based on testing according to NFPA 252 unless otherwise indicated.

2.6.1.1 Interior Doors

All interior doors shall be three (3) foot wide steel Heavy Duty Doors with compatible steel frames conforming to SDI/DOOR A250.8 , Level 2, SECTION 13 34 19 Page 20 physical performance Level B, Model 2, with core construction as required by the manufacturer.

Astragal: Double doors shown on the drawings shall have removable astragal.

2.6.1.2 Exterior Doors

All exterior doors shall be three (3) foot wide steel Maximum Duty Doors with compatible steel frames conforming to SDI/DOOR A250.8 , Level 4, physical performance Level A, Model 2 - N with core construction as required by the manufacturer.

2.6.1.3 Roll-up Garage Doors

The doors shall be rated for a 20 PSF wind load. The doors shall have a white colored finish. Refer to section 08 36 13 SECTIONAL OVERHEAD DOORS for more information.

PART 3 EXECUTION

3.1 EXAMINATION

Before erection proceeds examine with the erector present the concrete foundation dimensions, concrete and/or masonry bearing surfaces, anchor bolt size and placement, survey slab elevation, locations of bearing plates, and other embedment to receive structural framing with the metal building manufacturer's templates and drawings before erecting any steel components for compliance with requirements for installation tolerances and other conditions affecting performance of the Work.

Examine primary and secondary framing to verify that rafters, purlins, angles, channels, and other structural and metal panel support members and anchorages have been installed within alignment tolerances required by metal building manufacturer, UL, ASTM, ASCE 7 and as required by the building code for the geographical area where construction will take place.

Examine roughing-in for components and systems penetrating metal roof or wall panels to verify actual locations of penetrations relative to seam locations of metal panels before metal roof or wall panel installation.

Submit to the Contracting Officer a written report, endorsed by Erector, listing conditions detrimental to performance of the Work.

Proceed with erection only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

Provide temporary shoring, guys, braces, and other supports during erection to keep the structural framing secure, plumb, and in alignment against temporary construction loading or loads equal in intensity of the building design loads. Remove temporary support systems when permanent structural framing, connections, and bracing are in place, unless otherwise indicated.

Clean substrates of substances harmful to insulation, including removing projections capable of interfering with insulation attachment and performance.

SECTION 13 34 19 Page 21

Miscellaneous Framing: Install sub-purlins, girts, angles, furring, and other miscellaneous support members or anchorage for the metal roof or wall panels, doors, windows, roof curbs, ventilators and louvers according to metal building manufacturer's written instructions.

3.3 ERECTION OF STRUCTURAL STEEL FRAMING SYSTEM

Erect metal building system according to manufacturer's written erection instructions, approved shop drawings and other erection documents in accordance with MBMA MBSM - "Metal Building Systems Manual".

Do not field cut, drill, or alter structural members without written approval from metal building system manufacturer's professional engineer and the Contracting Officer. Field modifications to truss purlins are not allowed, unless indicated on erection drawings furnished by metal building system manufacturer.

Set structural framing accurately in locations and to elevations indicated and according to AISC 325 specifications. Maintain structural stability of frame during erection.

Clean and roughen concrete and masonry bearing surfaces prior to setting plates. Clean bottom surface of plates.

Align and adjust structural framing before permanent bolt-up and connections. Perform necessary adjustments and alignment to compensate for changes or discrepancies in elevations.

Maintain erection tolerances of structural framing in accordance with

AISC 360 .

Grout fixed column bases flush with floor line after structural steel erection is complete . by the concrete contractor.

3.4 METAL ROOF PANEL INSTALLATION

Provide metal roof panels of full length from eave to ridge or eave to wall as indicated, unless otherwise indicated or restricted by shipping limitations. Anchor metal roof panels and other components of the Work securely in place in accordance with NRCA RoofMan and MBMA MBSM. Install roof system weathertight.

Erect roofing system in accordance with the approved erection drawings, the printed instructions and safety precautions of the metal building manufacturer.

Sheets are not to be subjected to overloading, abuse, or undue impact. Do not install bent, chipped, or defective sheets.

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 rake and eave overhang. Position panel clips by matching hole in clip with factory-punched holes in secondary structural members.

Position and properly align panels by matching factory-punched holes in panel end with factory-punched holes in eave structural member and by aligning panel with panel clip.

Work must allow for thermal movement of the roofing, movement of the building structure, and provide permanent freedom from noise due to wind

SECTION 13 34 19 Page 22 pressure.

Field cutting metal roof panels by torch is not permitted.

Roofing sheets must be laid with corrugations in the direction of the roof slope. End laps of exterior roofing must not be less than 6 inches and must be sealed with a weather sealing compound (sealant) and fastened together by clamping plates. Sealant must contain hard nylon beads to prevent mastic from flowing out due to clamping actions. The side laps of standard exterior corrugated sheets must not be not less than 2-1/2 corrugations. Field seam panel side laps by self-propelled and portable electrical lock-seaming machine. Join panel laps by two-piece clamped connection consisting of a bottom reinforcing plate and a top panel strap.

Locate panel end laps directly over, but not fastened to, supporting secondary roof structural member and stagger to avoid four-panel lap-splice condition.

Do not permit storage, walking, wheeling, and trucking directly on applied roofing materials. Provide temporary walkways, runways, and platforms of smooth clean boards or planks as necessary to avoid damage to the installed roofing materials, and to distribute weight to conform to the indicated live load limits of roof construction.

3.5 METAL WALL PANEL INSTALLATION

Provide metal wall panels of full length 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, in accordance with MBMA MBSM. Install wall system weathertight.

Erect wall panel system in accordance with the approved erection drawings, the printed instructions and safety precautions of the metal building manufacturer.

Sheets are not to be subjected to overloading, abuse, or undue impact. Do not install bent, chipped, or defective sheets.

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.

Install side laps with minimum of one (1) full corrugation. Seal wall panels at base with metal trim and foam or rubber closures.

3.6 METAL PANEL FASTENER INSTALLATION

Anchor metal panels and other components of the Work securely in place, using manufacturer's approved fasteners according to manufacturers' written instructions.

3.7 FLASHING, TRIM, AND CLOSURE INSTALLATION

a. Comply with performance requirements, manufacturer's written

SECTION 13 34 19 Page 23 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 that will be permanently watertight and weather resistant.

b. Sheet metalwork is to be accomplished 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.

3.8 ACCESSORY INSTALLATION

3.8.1 General

Install accessories with positive anchorage to building and weather-tight mounting, and provide for thermal expansion. Coordinate installation with flashings and other components.

3.8.2 Dissimilar Metals

Where dissimilar metals contact one another or corrosive substrates are present, protect against galvanic action by painting dissimilar metal surfaces with bituminous coating, by applying rubberized-asphalt underlayment to each surface, or by other permanent separation techniques as recommended by the metal building manufacturer.

3.8.3 Gutters and Downspouts

Comply with performance requirements, manufacturer's written installation instructions, and install sheet metal roof drainage items to produce complete roof drainage system according to SMACNA 1793 recommendations and as indicated.