13 34 00 - Pre-engineered Post Frame Structures.pdf

13 34 00 - PRE-ENGINEERED POST-FRAME STRUCTURES

Herbert, Rowland & Grubic, Inc. 13 34 00 - 1 005153.0436

SECTION 13 34 00 – PRE-ENGINEERED POST FRAME STRUCTURES

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes: Post Frame pre-engineered building systems, including:

1. Foundations.

2. Primary and secondary structural framing systems.

3. Roofing and siding.

4. Wall insulation.

5. Doors, windows, and accessories.

B. Related Requirements:

1. Section 03 30 00 – Cast-in-Place Concrete

2. Section 06 10 00 – Rough Carpentry.

3. Section 06 16 00 – Sheathing.

4. Section 06 17 53 – Shop-Fabricated Wood Trusses.

1.2 REFERENCE STANDARDS

A. ANSI/TPI 1 – National Design Standard for Metal Plate Connected Wood Truss Construction.

B. APA PDS 04 – Panel Design Specification.

C. ASAE EP 484 – Diaphragm Design of Metal-Clad, Post-Frame Rectangular Buildings. ASABE Standards. St. Joseph, MI.

D. ASAE EP 486 – Post and Pole Foundation Design: Shallow Post Foundation Design. ASABE Standards. St. Joseph, MI.

E. ASAE EP 559 – Design Requirements and Bending Properties for Mechanically Laminated Columns. ASABE Standards. St. Joseph, MI.

F. ASCE 32 – Design and Construction of Frost Protected Shallow Foundations.

G. ASTM International (ASTM):

1. ASTM A153 – Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel

Hardware

2. ASTM A653 – Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or

Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

3. ASTM A792 – Standard Specification for Steel Sheet, 55% Aluminum-Zinc Alloy-

Coated by the Hot-Dip Process

4. ASTM C39/C39M – Compressive Strength of Cylindrical Concrete Specimens

5. ASTM C665 – Standard Specification for Mineral-Fiber Blanket Thermal Insulation for Light Frame Construction and Manufactured Housing

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6. ASTM C991 – Standard Specification for Flexible Glass Fiber Insulation for Metal Buildings

7. ASTM D3841 – Standard Specification for Glass-Fiber-Reinforced Polyester Plastic Panels

8. ASTM E84 – Standard Test Method for Surface Burning Characteristics of Building Materials

9. ASTM E96 – Standard Test Methods for Water Vapor Transmission of Materials

10. ASTM F1667 – Specification for Driven Fasteners: Nails, Spikes and Staples

H. AWC (NDS) – National Design Specification for Wood Construction

I. AWPA U1 – USE CATEGORY SYSTEM: User Specification for Treated Wood Products

J. NFBA – Accepted Practices for Post Frame Building Construction: Framing Tolerances

K. NFBA – Accepted Practices for Post-Frame Building Construction: Metal Panel and Trim Installation Tolerances

L. TPI – Truss Plate Institute

1.3 COORDINATION

A. Coordinate work under provisions of Section 01 31 13.

B. Coordinate Work of this Section with installation of prefabricated wood trusses.

1.4 SUBMITTALS

A. Section 01 33 00 - Submittal Procedures: Requirements for submittals.

B. Shop Drawings:

1. Shop drawings shall bear the seal and signature of a licensed design professional registered in the jurisdiction where the project is located.

2. Indicate assembly dimensions, locations of structural members, connections, attachments, openings, cambers, and loads.

3. Indicate wall and roof system dimensions, panel layout, general construction details, anchorage types and method of anchorage installation.

4. Include roof framing, cross sections, roof, and wall covering, and trim details and accessory and component details clearly indicating proper assembly.

5. Indicate framing anchor bolt settings, sizes, and locations from datum and foundation loads.

C. Delegated Design Submittals: For pre-engineered post frame structures indicated to comply with performance requirements and design criteria, including analysis data signed and sealed by the qualified professional engineer responsible for their preparation.

D. Product Data: Manufacturer's data sheets on each product to be used, including:

1. Manufacturer's specifications and installation instructions for building components and accessories.

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2. Preparation instructions and recommendations.

3. Storage and handling requirements and recommendations.

E. Selection Samples: For each finish product specified, two complete sets of color chips representing manufacturer's full range of available colors and patterns.

F. Verification Samples: For each finish product specified, two samples, minimum size 6 inches square, representing actual product, color, and patterns.

1.5 QUALITY ASSURANCE

A. Manufacturer Qualifications: Experienced in producing pre-engineered wood buildings of the type specified.

B. Installer Qualifications: Installer Qualifications: Experienced in the erection of pre-engineered wood buildings of the type specified.

1. Installer shall follow the installation guidelines defined in NFBA – Accepted

Practices for Post Frame Building Construction: Framing Tolerances.

2. Installer shall follow the installation guidelines defined in NFBA – Accepted

Practices for Post-Frame Building Construction: Metal Panel and Trim Installation Tolerances.

3. Designer of Record Qualifications: Experienced in designing Post Frame structures registered in the jurisdiction of the project.

1.6 PROJECT CONDITIONS

A. Anticipate environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's absolute limits.

1.7 WARRANTY

A. Preservative Treated Materials – Preservative treated lumber, including structural posts, are warranted by the original materials manufacturer against failures due to fungal decay and termite infestation.

B. Roofing and Siding Base Metal – Metal materials are as warranted by the original material manufacturer against failure.

C. Roofing and Siding Finish – Steel panel warranted by the original materials manufacturer from the date of shipment.

D. Individual Building Products – Manufacturer's standard warranty.

1.8 DELIVERY, STORAGE, AND HANDLING

A. Stack lumber flat with spacers beneath and between each bundle to provide air circulation. Protect lumber from weather by covering with waterproof sheeting, securely anchored. Provide for air circulation around stacks and under coverings.

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PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Delegated Design: Engage a qualified professional engineer, as defined in Section 01 40 00 – Quality Requirements, to design metal-plate-connected wood trusses.

B. Structural Performance: Provide a building designed as a complete system capable of withstanding design loads within limits and under conditions indicated. All system components shall be specified, including but not limited to foundations, primary framing, secondary framing, lateral bracing, roofing, and siding.

1. Design Loads: As indicated.

2. Maximum Deflection Under Design Loads:

a. Primary Framing:

1) L/240 for roof snow load.

2) L/180 for wind load.

b. Secondary Framing:

1) L/180 for roof dead load + roof snow load, but not less than that required to maintain positive drainage for the greater of dead load + 1/2 roof snow load or dead load +5psf.

2) L/180 for wind load on walls and roof.

3) L/180 for roof snow load, but not less than 20psf on sheathing

c. Metal Wall and Roof Panels:

1) Design in accordance with AISI "Specifications for the Design of

Light-Gauge, Cold-Formed Steel Structural Members" and in accordance with sound engineering methods and practices.

C. Roof Truss: Refer to Section 06 17 53 – Shop-Fabricated Wood Trusses for performance requirements.

D. Wood Structural Design Standard: Comply with applicable requirements in AF&PA's "National Design Specifications for Wood Construction" and its "Supplement."

2.2 STRUCTURAL FRAMING

A. Foundation:

1. Shall be designed in general accordance with

a. ASAE EP 486 – Post and Pole Foundation Design: Shallow Post Foundation Design. ASABE Standards. St. Joseph, MI.

b. ASCE 32 – Design and Construction of Frost Protected Shallow Foundations.

2. Shall be defined in the design calculations as the following:

a. Cast-in-place concrete foundation wall.

3. Concrete: Refer to Section 03 30 00 – Cast – in – Place Concrete for concrete requirements.

4. Wood products in contact with concrete or soil shall be protected with pressure preservative chemical treatments to retention levels for Use Category UC4B or better in accordance with AWPA-U1.

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5. Backfill around below foundations shall be compacted excavated material, coarse grained soil, concrete, or controlled low-strength material (CLSM).

B. Posts (Columns):

1. Posts shall be solid sawn, glued-laminated, nail-laminated, or structural composite wood products as identified in the design calculations and in accordance with the NDS.

2. Shall be designed in general accordance with:

a. ASAE EP 559 – Design Requirements and Bending Properties for

Mechanically Laminated Columns. ASABE Standards. St. Joseph, MI.

3. Portions of wood posts below grade and less than 8 in. above grade shall be protected by one of the following means:

a. Protected with pressure preservative chemical treatments to retention levels for Use Category UC4B or better per AWPA-U1 or

b. Covered with a protective cover and protected with preservative chemical treatments to retention levels defined in accordance with

AWPA-U1

c. Individual layers of mechanically laminated posts shall be connected using ring shank feed nails as defined in the design calculations or per manufacturer's engineered nailing pattern. Fasteners shall be either galvanized in accordance with ASTM A153 or Stainless Steel (Type 304 or 316)

4. Untreated Lumber Section:

a. Lumber: No. 2 or Better. Species and grade as required for design.

b. Fabrication: Laminate individual pieces using glue or connectors as defined in the design calculations or per manufacturer's engineered connecting pattern.

c. Grade and size shall be selected to support imposed loads within deflection limits as defined in the design calculations.

C. Roof Trusses: Refer to Section 06 17 53 – Shop-Fabricated Wood Trusses for requirements.

D. Wall Girts:

1. Wall Girts shall be solid sawn, glued-laminated, nail-laminated, or structural composite wood products identified in the design calculations and in accordance with the NDS.

2. Wall girts shall satisfy the wind load requirements defined in the design calculations, including any additional lateral loadings exerted by stored materials acting directly on the wall sheathing.

3. All wall girts less than 8 in. above grade must be pressure preservative treated with preservative chemical treatments and to retention levels for Use Category UC4A or better per AWPA-U1

4. Wall girts shall be connected using fasteners as defined in the design calculations or per manufacturer's engineered nailing pattern. Fasteners shall be either galvanized in accordance with ASTM A153 or Stainless Steel (Type 304 or 316)

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5. Wall girts may be placed directly on the outside face of wall posts or inset between wall posts with outside edge flush with outside edge of wall post in accordance with the design calculations.

6. Wall girts are attached to the posts with fastener schedules defined in the design calculations.

7. All in place structural performance required connection hardware shall be either galvanized in accordance with ASTM A153 or Stainless Steel (Type 304 or 316) when located:

a. 8 in. or less above grade

b. Areas where pressure-treated wood is utilized.

E. Post Headers (Beams):

1. Post Headers (beams) shall be solid sawn, glued-laminated, nail-laminated, parallel chord plate connected trusses, or structural composite wood products identified in the design calculations and in accordance with the NDS.

2. Post headers are attached with connector hardware defined in the design calculations.

F. Primary Roof Framing:

1. Primary roof framing shall be solid sawn, glued-laminated, nail-laminated, or structural composite wood products as identified in the design calculations and in accordance with the NDS.

2. Primary roof framing shall satisfy the load requirements of the design calculations except dead load for purlins only includes contributions from the purlins, sheathing, and other roof coverings.

G. Purlins:

1. Purlins shall be solid sawn, glued-laminated, nail-laminated, parallel chord plate connected trusses, or structural composite wood products identified in the design calculations and in accordance with the NDS.

2. Primary roof framing shall satisfy the load requirements of the design calculations except dead load for purlins only includes contributions from the purlins, sheathing, and other roof coverings.

H. Roof Sheathing (Deck):

1. Shall be designed in general accordance with

a. ASAE EP 484 – Diaphragm Design of Metal-Clad, Post-Frame Rectangular Buildings. ASABE Standards. St. Joseph, MI.

2. Roof sheathing shall consist of materials capable of carrying the loading as identified in the design calculations.

3. Roof sheathing shall be connected to the roof framing in accordance with the design calculations.

a. Metal roof sheathing substrate shall be Galvalume AZ 55, G90, or equivalent in accordance with ASTM 653/A 653M and ASTM A792. Roof sheathing may be painted as defined elsewhere in this specification.

4. Fasteners used to through-fasten painted corrugated steel panels shall be as identified in the design calculations.

a. Fasteners shall match the color of adjacent roof sheathing.

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5. Alternate exterior roof surfaces include:

a. Pre-painted metal finish with color from manufacturer's standard colors.

I. Wall Sheathing (Siding):

1. Wall sheathing shall consist of the following materials and be capable of carrying the loading as identified in the design calculations.

2. Wall sheathing shall be connected to the posts and wall girts in accordance with the design calculations.

a. Metal wall sheathing substrate shall be Galvalume AZ 55, G90, or equivalent in accordance with ASTM 653/A 653M. Wall sheathing may be painted as defined elsewhere in this specification.

3. Fasteners used to through-fasten painted corrugated steel panels shall be as identified in the design calculations.

a. Fasteners shall match the color of adjacent wall sheathing.

4. Alternate exterior wall surfaces include:

a. Pre-painted metal finish with color from manufacturer's standard colors.

5. Alternate interior surfaces include:

a. Pre-painted metal finish with color from manufacturer's standard colors.

J. Trim:

1. Trim materials include flashings, internal and external corners, closure pieces, and other elements to complete the exterior envelope of the structure.

2. All trim shall be compatible with the wall/roof sheathing and sheathing finish materials per product supplier.

K. Insulation (Roof & Wall):

1. Insulation shall be glass fiber type, either faced or unfaced, that performs in accordance with ASTM C991.

a. Mineral fiber-based insulation shall conform with the performance requirements of ASTM C665.

b. Blown-in cellulose insulation shall conform with the performance requirements of ASTM C739.

c. Foamed in place insulation shall conform with the performance requirements of ASTM C16.

d. Flame spread classification shall be 25 or less when tested in accordance with ASTM E84

e. Total R-value of the roof insulation shall be R-38

f. Total R-value of the wall insulation shall be R13 + R-7.5ci

L. Materials – Accessories:

1. Ridge Cap:

a. The cap materials and construction shall match the roof steel materials and construction.

2. Vents

a. Ridge vent, and/or low-profile ridge ventilator as identified on Drawings.

3. Wall Louvers

a. Shall be designed to withstand the wind loading identified for the project and as identified in the design calculations provided for this project.

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4. Gutters and downspouts:

a. Sizing: Comply with SMACNA Architectural Sheet Metal Manual.

b. Rainfall Intensity: Determined by storm occurrence of one in 10 years.

c. Color: As selected by owner from manufacturer’s standard list of colors.

5. Splash Pads:

a. Type: Precast concrete.

b. Size and Profiles: As selected.

c. Minimum Compressive Strength: 3,000 psi at 28 days.

d. Minimum Air Entrainment: 6 percent.

6. Snow Guards: Seam-mounted, rail-type snow guards.

a. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to the following:

1) Alpine SnowGuards, a division of Vermont Slate & Copper

Services, Inc.

2) S-5! Attachment Solutions; Metal Roof Innovations, Ltd.

3) Snow Management Systems.

4) Or equal.

b. Description: Snow guard rails fabricated from bars and extrusions, anchored to brackets and equipped with one rail.

c. Provide one ice flag per panel bay.

d. Material and Finish: Aluminum; mill.

e. Snow Loads: As indicated on Drawings.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Before start of installation, contractor shall carefully inspect installed Work of other trades affecting construction of the post-frame building. Verify that all such work is complete to the point where installation of the post-frame building may properly commence.

B. Verify that the work of this section may be installed in accordance with all applicable codes and regulations, and with original design as shown and indicated on the sealed design drawings.

C. Discrepancies: In the event of a discrepancy, installer shall immediately notify the designer of record. Installation shall not proceed until discrepancies and/or unsatisfactory conditions have been fully resolved and/or approved as agreed by the designer of record and the installer.

D. Commencement of work by erector/installer is acceptance of site conditions.

3.2 ERECTION-STRUCTURAL FRAMING

A. Work shall proceed in accordance with contractor’s current, written instructions and as per approved design specifications and approved construction drawings for erection of post-frame building systems.

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B. Where specific direction is not provided by the construction documents, erection shall be completed in accordance with the NFBA document “Accepted Practices for Post Frame Construction – Framing Tolerances

C. Provide temporary erection and wind load bracing to maintain structure plumb and in alignment until installation of permanent bracing and/or roofing and wall coverings are completed.

D. Do not field cut or alter structural members without approval from the Designer of Record and manufacturer.

3.3 INSTALLATION

A. Install all foundations, roof, and wall structural elements, building components, and accessories as shown in the approved design construction drawings or in component supplier instruction sheets.

B. Install all connections between indicated structural components per design drawings:

C. Provide and properly connect all temporary and permanent bracing (wall, truss, and roof) as defined on the construction drawings and design calculations as well as all bracing required to provide a safe working environment.

D. Adjust all operating components as required to ensure that they operate in accordance with manufacturer or supplier recommendations.

E. Install all roof and wall accessories as permanent and weathertight elements.

F. Coordinate panel installation with installation of roofing and wall systems and related flashings and trims.

G. Install gutters and downspouts, flashings, and trim in accordance with manufacturer's instructions.

3.4 CLEANING AND PROTECTION

A. Contractor shall clean all building elements, components and/or surfaces in areas with “more than normal construction amount” of foreign matter such as dirt, dust or other surface debris. “More than normal” dirt, debris and other blemishes are defined as being visible by a majority of normal-sighted individuals when viewed under natural noonday lighting from an at-grade position no closer than fifteen feet to the blemish in question.

B. Touch up all marred, abraded, or otherwise damaged finishes as deemed necessary and in accordance with the definition for “more than normal” above so that evidence of such damage is eliminated.

END OF SECTION