PIP ARS13120(Pre-Engineered Metal Building Specification)

COMPLETE REVISION June 2007

Process Industry Practices Architectural

PIP ARS13120 Pre-Engineered Metal Buildings Specification

PURPOSE AND USE OF PROCESS INDUSTRY PRACTICES In an effort to minimize the cost of process industry facilities, this Practice has been prepared from the technical requirements in the existing standards of major industrial users, contractors, or standards organizations. By harmonizing these technical requirements into a single set of Practices, administrative, application, and engineering costs to both the purchaser and the manufacturer should be reduced. While this Practice is expected to incorporate the majority of requirements of most users, individual applications may involve requirements that will be appended to and take precedence over this Practice. Determinations concerning fitness for purpose and particular matters or application of the Practice to particular project or engineering situations should not be made solely on information contained in these materials. The use of trade names from time to time should not be viewed as an expression of preference but rather recognized as normal usage in the trade. Other brands having the same specifications are equally correct and may be substituted for those named. All Practices or guidelines are intended to be consistent with applicable laws and regulations including OSHA requirements. To the extent these Practices or guidelines should conflict with OSHA or other applicable laws or regulations, such laws or regulations must be followed. Consult an appropriate professional before applying or acting on any material contained in or suggested by the Practice.

This Practice is subject to revision at any time.

© Process Industry Practices (PIP), Construction Industry Institute, The University of Texas at Austin, 3925 West Braker Lane (R4500), Austin, Texas 78759. PIP member companies and subscribers may copy this Practice for their internal use. Changes, overlays, addenda, or modifications of any kind are not permitted within any PIP Practice without the express written authorization of PIP.

PRINTING HISTORY May 1999 Issued October 2001 Technical Revision June 2007 Complete Revision

Not printed with State funds

COMPLETE REVISION June 2007

Process Industry Practices Architectural

PIP ARS13120 Pre-Engineered Metal Buildings Specification

Table of Contents

1. Introduction.................................2 1.1 Purpose .......................................... 2 1.2 Scope ............................................. 2

2. References ..................................2 2.1 Process Industry Practices............. 2 2.2 Industry Codes and Standards....... 2 2.3 Government Regulations................ 5

3. Definitions...................................5

4. Requirements..............................6 4.1 Design ............................................ 6 4.2 Materials ......................................... 9 4.3 Fabrication.................................... 17 4.4 Erection ........................................ 21

Process Industry Practices Page 1 of 24

PIP ARS13120 COMPLETE REVISION Pre-Engineered Metal Buildings Specification June 2007

1. Introduction

1.1 Purpose This Practice provides requirements for pre-engineered metal buildings.

1.2 Scope This Practice describes the requirements for design, materials, fabrication, and erection of pre-engineered metal buildings, including exterior doors, windows, louvers and ventilators as required by the contract documents.

This Practice does not address pre-fabricated (pre-manufactured) buildings.

2. References

Applicable parts of the following Practices and references shall be considered an integral part of this Practice. The edition in effect on the date of contract award shall be used, except as otherwise noted. Short titles are used herein where appropriate.

2.1 Process Industry Practices (PIP) – PIP ARS08111 - Standard Steel Doors and Frames Supplier Specification – PIP ARS08112 - Standard Steel Doors and Frames Installation Specification – PIP ARS08710 - Door Hardware Specification – PIP CVC01017 - Plant Site Data Sheet – PIP CVC01018 - Project Data Sheet – PIP STC01015 - Structural Design Criteria

2.2 Industry Codes and Standards

• Architectural Aluminum Manufacturers Association (AAMA) – AAMA 701702 - Voluntary Specification for Pile Weatherstripping and

Replaceable Fenestration Weatherseals

• American Institute of Steel Construction (AISC) – Steel Construction Manual – Specification for Structural Joints Using ASTM A325 or A490 Bolts – Code of Standard Practice for Steel Buildings and Bridges – Specification for Structural Steel Buildings

• American Iron and Steel Institute (AISI) – AISI SG 673, Part 1: Specification for the Design of Cold-Formed Steel

Structural Members – AISI SG 913, Part 1: Load and Resistance Factor Design Specification for

Cold-Formed Steel Structural Members

Page 2 of 24 Process Industry Practices

COMPLETE REVISION PIP ARS13120 June 2007 Pre-Engineered Metal Buildings Specification

• American Society of Civil Engineers (ASCE) – ASCE/SEI 7 - Minimum Design Loads for Buildings and Other Structures

• ASTM International (ASTM) – ASTM A1 - Standard Specification for Carbon Steel Tee Rails – ASTM A36/A36M - Standard Specification for Carbon Structural Steel – ASTM A53/A53M - Standard Specification for Pipe, Steel, Black and Hot-

Dipped, Zinc-Coated, Welded and Seamless – ASTM A106/A106M/A106/A106MM - Standard Specification for Seamless

Carbon Steel Pipe for High Temperature Service – ASTM A123/A123M - Standard Specification for Zinc (Hot-Dipped

Galvanized) Coatings on Iron and Steel Products – ASTM A153/A153M - Standard Specification for Zinc Coating (Hot-Dip) on

Iron and Steel Hardware (AASHTO No. M232) – ASTM A307 - Standard Specification for Carbon Steel Bolts and Studs, 60,000

PSI Tensile Strength – ASTM A325 - Standard Specification for Structural Bolts, Steel, Heat Treated,

120/105 ksi Minimum Tensile Strength (AASHTO No. M164) – ASTM A325M - Standard Specification for Structural Bolts, Steel, Heat

Treated 830 MPa Minimum Tensile Strength [Metric] – ASTM A475 - Standard Specification for Zinc-Coated Steel Wire Strand – ASTM A490 - Standard Specification for Structural Bolts, Alloy Steel, Heat

Treated, 150ksi Minimum Tensile Strength (AASHTO No. M253) – ASTM A490M - Standard Specification for High-Strength Steel Bolts, Classes

10.9 and 10.9.3, for Structural Steel Joints [Metric] – ASTM A500 - Standard Specification for Cold-Formed Welded and Seamless

Carbon Steel Structural Tubing in Rounds and Shapes – ASTM A501 - Standard Specification for Hot-Formed Welded and Seamless

Carbon Steel Structural Tubing – ASTM A529/A529M - Standard Specification for High-Strength Carbon-

Manganese Steel of Structural Quality – ASTM A563 - Standard Specification for Carbon and Alloy Steel Nuts – ASTM A563M - Standard Specification for Carbon and Alloy Steel Nuts

[Metric] – ASTM A572/A572M - Standard Specification for High-Strength Low-Alloy

Columbium-Vanadium Structural Steel (AASHTO No. M223) – ASTM A653/A653M - Standard Specification for Steel Sheet, Zinc-Coated

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

– ASTM A755/A755M - 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 A759 - Standard Specification for Carbon Steel Crane Rails



– ASTM A792/A792M/A792/A792MM - Standard Specification for Steel Sheet, 55% Aluminum-Zinc Alloy-Coated by the Hot-Dip Process

– ASTM A992/A992M - Standard Specification for Structural Steel Shapes – ASTM A1008/A1008M - Standard Specification for Steel, Sheet, Cold-Rolled,

Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake Hardenable

– ASTM A1011/A1011M - Standard Specification for Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, and Ultra-High Strength

– ASTM B221 - Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

– ASTM B221M - Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes [Metric]

– ASTM B695 - Standard Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel

– ASTM C509 - Standard Specification for Elastomeric Cellular Preformed Gasket and Sealing Material

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

– ASTM C1036 - Standard Specification for Flat Glass – ASTM D1494 - Standard Test Method for Diffuse Light Transmission Factor

of Reinforced Plastics Panels – ASTM D2000 - Standard Classification System for Rubber Products in

Automotive Applications – ASTM D2287 - Standard Specification for Nonrigid Vinyl Chloride Polymer

and Copolymer Molding and Extrusion Compounds – ASTM E84 - Standard Test Method for Surface Burning Characteristics of

Building Materials – ASTM F436 - Standard Specification for Hardened Steel Washers – ASTM F436M - Standard Specification for Hardened Steel Washers [Metric] – ASTM F959 - Standard Specification for Compressible-Washer-Type Direct

Tension Indicators for Use with Structural Fasteners – ASTM F959M - Standard Specification for Compressible-Washer-Type Direct

Tension Indicators for Use with Structural Fasteners [Metric] – ASTM F1554 - Standard Specification for Anchor Bolts, Steel, 36, 55, and

105-ksi Yield Strength

• American Welding Society (AWS) – AWS D1.1/D1.1M - Structural Welding Code-Steel, 2006 – AWS D1.3 - Structural Welding Code-Sheet Steel, 1998

• Glass Association of North America (GANA) – GANA Glazing Manual



• Metal Building Manufacturers Association (MBMA) – Metal Building Systems Manual

• Steel Joist Institute (SJI) – SJI Standard Specification, Load Tables and Weight Tables for Steel Joists and

Girders

• Steel Structures Painting Council (SSPC) – SSPC SP1 - Surface Preparation Specification No. 1, Solvent Cleaning – SSPC SP3 - Surface Preparation Specification No. 3, Power Tool Cleaning – SSPC SP7 - Surface Preparation Specification No. 7, Brush-off Blast Cleaning

2.3 Government Regulations Federal Standards and Instructions of the U.S. Occupational Safety and Health Administration, including any additional requirements by state or local agencies that have jurisdiction where the metal building is to be erected, shall apply.

• U.S. Department of Labor, Occupational Safety and Health Administration (OSHA) – OSHA 29 CFR Part 1910 - Occupational Safety and Health Standards – OSHA 29 CFR Part 1926 - Safety and Health Regulations for Construction

3. Definitions

contract documents: Any and all documents, including codes, studies, design drawings, specifications, sketches, practices, and data sheets, that the purchaser or engineer of record has transmitted or otherwise communicated, either by incorporation or reference, and made part of the legal contract agreement or purchase order between the purchaser and the supplier.

engineer of record: Purchaser’s authorized representative with overall authority and responsibility for the engineering design, quality, and performance of the civil works, structure, foundations, materials, and appurtenances described in the contract documents. The engineer of record shall be licensed as defined by the laws of the locality in which the work is to be constructed, and be qualified to practice in the specialty discipline required for the work described in the contract documents.

owner: The party ultimately responsible for contract award. The owner will have authority over the site, facility, structure or project through ownership, lease, or other legal agreement.

professional engineer: An engineer, other than the engineer of record licensed as defined by the laws of the locality in which the building is to be installed. The professional engineer shall be qualified to practice in the specialty discipline required for the work described in the contract documents.

purchaser: The party who awards the contract to the supplier. The purchaser may be the owner or the owner’s authorized agent.

supplier: The party responsible for supplying the building.



4. Requirements

4.1 Experience and Certification 4.1.1 Unless otherwise approved by the purchaser, supplier shall have a minimum

of 2 years experience in successful fabrication of pre-engineered metal buildings.

4.1.2 Unless otherwise approved by the purchaser, the job supervisor shall have a minimum of 5-years experience in the construction of pre-engineered metal buildings.

4.1.3 Unless exempted by the purchaser, supplier shall have AISC Category MB certification.

4.2 Design 4.2.1 Structural Design and Performance

4.2.1.1 The metal building shall be designed in accordance with the requirements specified herein and the requirements of the contract documents.

4.2.1.2 The building shall be designed by, or in the responsible charge of, a professional engineer.

4.2.1.3 Changes from the requirements in the contract documents shall be approved by the purchaser.

4.2.1.4 Unless otherwise required in the contract documents, the pre-engineered metal building system shall be designed in accordance with, and to withstand the loads and load combinations specified in, PIP STC01015, PIP CVC01017, and PIP CVC01018.

4.2.1.5 Unless otherwise specified in the contract documents, the design criteria shall be in accordance with the MBMA Metal Building Systems Manual, Part I - Design Practices.

4.2.1.6 Deflections and Drift Limits

1. Unless required otherwise in the contract documents or unless the governing codes are more stringent, maximum deflections of primary and secondary structural members shall be in accordance with Table 1.

Table 1 - Maximum Deflections Structural Members Deflection

Frame System L/240

Purlins L/180

Girts L/120

Sheeting L/120

Elements Supporting Masonry Construction L/600

Where: L = span length of the member being considered



2. Unless otherwise required in the contract documents, deflections for members supporting cranes shall be in accordance with PIP STC01015.

3. Maximum wind drift shall be in accordance with PIP STC01015.

4.2.1.7 Structural steel design shall be in accordance with the AISC Specification for Structural Steel Buildings.

4.2.1.8 Cold-formed steel design shall be in accordance with the AISI SG 673, Part 1, Specification for the Design of Cold-Formed Steel Structural Members or the AISI SG 913, Part 1, Load and Resistance Factor Design Specification for Cold-Formed Steel Structural Members, as applicable.

4.2.1.9 Roofing, siding, and other accessories shall be designed in accordance with the MBMA Metal Building Systems Manual.

4.2.1.10 Crane supports, if required, shall be designed in accordance with PIP STC01015 and shall meet the requirements of the contract documents.

4.2.1.11 All field connections shall be bolted, and all factory connections shall be either bolted or welded, unless otherwise required by the contract documents.

4.2.1.12 Bolted Connections

1. Design, detailing, and fabrication of bolted connections shall be in accordance with the AISC Specification for Structural Steel Buildings and the AISC Code of Standard Practice for Steel Buildings and Bridges. Connection detailing shall be done in accordance with the AISC Detailing for Steel Construction.

2. Connections using ASTM A325 or ASTM A490 Bolts shall be in accordance with the AISC Specification for Structural Joints Using ASTM A325 or A490 Bolts.

4.2.1.13 Welded Connections

Design, detailing, and fabrication of welded connections shall be in accordance with the AISC Specification for Structural Steel Buildings, the AISC Code of Standard Practice for Steel Buildings and Bridges, AWS D1.1, and AWS D1.3.

Connection detailing shall be done in accordance with the AISC Detailing for Steel Construction.

4.2.2 Submittals 4.2.2.1 Anchor Bolt Locations and Reactions

Within 2 weeks after award of contract, a drawing shall be submitted by supplier to the purchaser that provides the diameter, projection, and location of all required anchor bolts and the unfactored reactions at each point influencing the foundation for each design load (e.g., dead, live, snow, wind, earthquake, crane, etc.). For use in determining the anchor bolt diameter, anchor bolt material shall be



assumed to be ASTM F1554 Grade 36, unless noted otherwise in the contract documents.

4.2.2.2 Structural Design Calculations

1. Within 4 weeks after award of contract, one copy of all design calculations for the building shall be submitted by supplier to the purchaser for review by the engineer of record.

2. Design calculations shall be sealed by the supplier’s professional engineer.

3. Design calculations shall include the following:

a. Summary of the criteria, codes, design loads, and load combinations used for the building design

b. Deflection and drift calculations 4.2.2.3 Fabrication and Erection Drawings for Review and Approval

1. Before the start of fabrication, complete and checked fabrication and erection drawings shall be submitted to the purchaser for review and approval by the engineer of record. Fabrication shall not proceed until approval is obtained from the engineer of record.

2. Drawings shall be sealed by the supplier’s professional engineer. 4.2.2.4 Product Data

1. Product information, specifications, and installation instructions for building components and accessories shall be submitted with the fabrication and erection drawings that are submitted for review and approval.

2. Accessory component drawings shall include locations and elevations for personnel doors, overhead doors, windows, ventilator, louvers, gutters, downspouts, and any other accessories.

3. Specifications, data sheets, and wiring diagrams for motor-operated doors detailing power, signal, and control systems shall be submitted with clear differentiation between field- and factory-installed wiring.

4.2.2.5 Material Samples

Unless otherwise required by the contract documents, one of each of the following samples shall be submitted to the purchaser for approval before fabrication. Fabrication shall not proceed without the purchaser’s approval.

a. 30 cm (12 inches) by actual width samples of roofing, siding, liner, translucent and soffit panels with required finishes, including specified style and texture

b. Fasteners (including standing seam roof clips) for application of roofing, siding, and soffit panels



c. A minimum 30 cm by 30 cm (12 inches by 12 inches) sample of the side lap seams both sides of typical roofing and siding panels, including any sealants, fasteners, clips and closures

d. Color chips for color selections by the purchaser 4.2.2.6 Maintenance Manual

Before mechanical completion, two identical three-ring binder manuals shall be submitted that include the following:

a. Outer jacket labeled to read: “Maintenance Manual” - Name of Project, Completed (date: )

b. Table of contents

c. List of prime and subcontractors with key personnel, addresses, and phone numbers

d. Letters of guarantee and warranties

e. Warning labels for posting by owner at roof access

f. Maintenance instructions

g. Any other relevant information 4.2.2.7 Final Fabrication and Erection Drawings Record

1. Before delivery, final checked and sealed fabrication drawings and erection drawings shall be submitted.

2. All drawings shall identify materials of construction by type of material, ASTM specification, thickness, etc., as applicable.

4.3 Materials 4.3.1 General

4.3.1.1 Materials shall be provided as specified herein, in accordance with the contract documents, and as required for the design of the building.

4.3.1.2 Substitutions shall not be permitted without prior written approval from the purchaser.

4.3.2 Quality Assurance 4.3.2.1 The supplier shall be responsible for quality control of all materials

and workmanship.

4.3.2.2 Inspections or approvals from the purchaser shall in no way relieve the supplier from any obligations to perform the work in accordance with the contract documents.

4.3.2.3 The purchaser has the right to inspect all materials and workmanship.

4.3.2.4 The purchaser may reject improper, inferior, defective, or unsuitable materials and workmanship.



4.3.2.5 All rejected materials and workmanship shall be replaced as directed by the purchaser.

4.3.3 Structural 4.3.3.1 Hot-rolled structural shapes, plates, and bars (including built-up

members) shall conform to any of the following material specifications:

a. ASTM A36

b. ASTM A529/A529M, Grade 50

c. ASTM A1011/A1011M, Grade 50

d. ASTM A572, Grade 50

e. ASTM A1008/A1008M Class 1 or 2, Grade 50

f. ASTM A992

4.3.3.2 Cold-formed structural shapes shall conform to any of the following material specifications:

a. ASTM A1011/A1011M, Grade 55

b. ASTM A1008/A1008M Class 1 or 2, Grade 55

c. ASTM A653 SS Class 1, Grade 50

4.3.3.3 Pipe shall be ASTM A53/A53M Types E or S, Grade B, or ASTM A106/A106M, Grade B.

4.3.3.4 Structural tube shall be ASTM A501 or ASTM A500, Grade B.

4.3.3.5 Wire strand (cable) shall be ASTM A475, extra high strength, and seven wires per strand.

4.3.3.6 High-strength bolt assemblies shall be provided as follows:

a. Bolt - ASTM A325 Type 1 or ASTM A490 (only if required by design)

b. Washer - ASTM F436

c. Direct tension indicator (DTI) washers - ASTM F959

d. Heavy hex nut - ASTM A563, Grade DH

4.3.3.7 Standard bolt assemblies shall be provided as follows:

a. Bolt - ASTM A307, Grade A heavy hex

b. Washer - ASTM F436

c. Heavy hex nut - ASTM A563, Grade A

4.3.3.8 Crane Rails shall be provided as follows:

a. Rails less than 104 lb./yd. - ASTM A1

b. Rails 104 to 175 lb./yd. - ASTM A759



4.3.3.9 Steel joists shall be in accordance with SJI Standard Specification, Load Tables and Weight Tables for Steel Joists and Girders.

4.3.3.10 Welding of Structural Shapes - Comply with AWS D1.1, Section 3.3 (including Table 3.1) with an electrode strength of 400 MPA (58 ksi) minimum yield strength and 480 MPa (70 ksi) minimum tensile strength (e.g., use E70XX for SMAW, F7XX-EXXX for SAW, ER70S-X for GMAW, and E7XT-X for FCAW).

4.3.3.11 Welding of sheet steel shall be performed in accordance with AWS D1.3, Section 1.4 (including Table 1.1).

4.3.4 Roofing and Siding 4.3.4.1 Steel sheets shall conform to any of the following material

specifications:

a. ASTM A1011/A1011M - Grade 50 or 55

b. ASTM A1008/A1008M - Class 1 or 2, Grade 50, or higher

c. ASTM A653 - SS, either Grade 50, Class 1 or 3, or Grade 80

d. ASTM A792/A792M - SS, either Grade 50 Type A or Grade 80

4.3.4.2 Steel coating shall conform to any of the following:

a. Zinc coating - ASTM A653 Coating Designation G-90

b. Aluminum-zinc alloy coating - ASTM A792/A792M Coating Designation AZ-55

c. Prime/painted - In accordance with the contract documents or supplier’s standards

4.3.4.3 Trim

1. Unless otherwise required in the contract documents, flashing, corner trim, caps, and closure pieces shall be of the same material, finish, and color as adjacent material.

2. Trim profile shall be provided to suit. 4.3.4.4 Insulation

1. Insulation shall be rigid, semi-rigid, ASTM C665, batt or roll, faced or unfaced with a thickness or R-rating as required in the contract documents.

2. UL flame spread classification shall be 25 or less. 4.3.4.5 Fasteners

1. Wall and roofing through-fasteners shall be supplier’s standard self-drilling stainless steel screws with sealing washer.

2. Clips for standing seam panels shall be supplier’s standard sliding design to allow for unrestrained expansion and contraction movement of panels, complete with plated self-drilling fasteners at each clip.



3. Exposed fasteners for eave, end lap, ridge cover, trim, and flashing shall be supplier’s standard self-drilling stainless steel screws with sealing washer.

4. All exposed fastener heads shall be factory colored to match color of panels.

4.3.4.6 Sealant

1. Factory-applied roof panel sealant shall be non-shrinking, non-drying, butyl-based sealant specifically formulated for factory application in standing seams and to allow roof panel assembly at temperatures from -23°C to +60°C (-10°F to +140°F) or supplier’s standard type if approved by the purchaser.

2. Field-applied roof panel sealant shall be a purchaser approved, non-shrinking, non-drying, butyl-based sealant specifically formulated for roof application at temperatures from 7°C to 49°C (20°F to 120°F) or supplier’s standard type if approved by the purchaser.

4.3.5 Accessories 4.3.5.1 Personnel doors shall be in accordance with PIP ARS08111 and

PIP ARS08112.

4.3.5.2 Door hardware shall be in accordance with PIP ARS08710. 4.3.5.3 Overhead Roll-up Doors

1. Unless otherwise required in the contract documents, complete overhead roll-up door assemblies including door curtain, guides, counterbalance, hardware, operators, and installation accessories shall be provided as specified herein.

2. Doors and frames shall be designed for wind loading in accordance with Section 4.2.1.

3. Door Curtain

a. Interlocking steel slat door curtain with one-piece slats for the full length of door width shall be provided.

b. The door curtain shall be formed from minimum 0.70 mm (0.0269 inch), structural sheet steel.

c. Where required in the contract documents, insulation shall be manufacturer’s standard rigid cellular polystyrene or polyurethane-foam-type thermal insulation complying with maximum flame-spread and smoke-developed indexes of 75 and 450, respectively, according to ASTM E 84. Enclose insulation completely within metal slat faces.

4. Bottom Bar

a. Bottom bar shall be provided on door curtain consisting of two 3 mm (1/8-inch) thick angles of the same metal as the door curtain slats.



b. A flexible rubber, vinyl, or neoprene weather seal and cushion bumper shall also be provided on the bottom bar.

5. Where required in the contract documents, vision panels shall be 6 mm (¼ inch) thick cast thermo-plastic, methyl methacrylate vision panels set in neoprene or vinyl glazing channels shall be provided in the arrangement indicated.

6. Weather Seals

a. At exterior doors, 3 mm (1/8-inch) thick continuous rubber or neoprene sheet weather seals on metal pressure bars secured to inside of curtain coil hood shall be provided.

b. At doorjambs, 3 mm (1/8-inch) thick continuous strip secured to exterior side of jamb guide shall be provided.

7. Hood

a. The coiled curtain and operating mechanism shall be entirely enclosed at the opening head to act as a weather seal.

b. The end brackets, to which the hood is attached, shall be contoured to suit.

c. Top and bottom edges shall be rolled and reinforced for stiffness.

d. Closed ends shall be provided for surface-mounted hoods and any portion of between-jamb mounting projecting beyond wall face.

e. Intermediate support brackets shall be provided to prevent sag.

f. Hoods for steel doors shall be fabricated from 0.55 mm (0.0209 inch) minimum zinc-coated steel sheet and phosphate-treated before fabrication.

8. A factory finish shall be provided in accordance with the contract documents.

9. Chain Hoist Operation

a. An operator assembly shall be provided, consisting of an endless cadmium-plated alloy steel hand chain, chain pocket wheel and guard, and geared reduction unit with maximum 16-kg (35-pound) pull for door operation.

b. Chain hoist shall be designed with self-locking mechanism allowing curtain to be stopped at any point in its travel and to remain in that position until movement is reactivated.

c. Chain with chain holder shall be furnished secured to operator guide.



10. Electric Door Operators

a. An electric operator assembly of adequate size and capacity shall be furnished.

b. Operators shall be furnished with NEMA-rated motor and factory-prewired motor controls, gear reduction unit, solenoid-operated brake, remote control stations, control devices, conduit and wiring from controls to motor and central stations, and accessories required for proper operation.

c. Electric operator shall be furnished in accordance with the purchaser’s area classification in accordance with the contract documents.

d. A hand-operated disconnect or mechanism for automatically engaging a sprocket and chain operator and releasing the brake for emergency manual operation shall be provided. The interlock device to automatically prevent motor from operating if manual operator is engaged shall also be included.

e. Electric Motors

1. A high-starting torque, reversible, constant duty, Class A insulated electric motor with overload protection shall be provided.

2. Motor shall be sized to move door in either direction, from any position, at not less than 20 cm (0.67 foot) nor more than 30 cm (1 foot) per second.

3. Wiring requirements and current characteristics of motors shall be coordinated with building electrical system.

4. An open-drip-proof-type motor and controller with NEMA Type 1 enclosure shall be furnished.

f. Remote Control Station

1. A NEMA-approved, momentary contact, three-button remote control station with push-button controls labeled “open,” “close,” and “stop” shall be provided.

2. For interior units, full-guarded, surface-mounted, heavy-duty remote control stations, with general-purpose NEMA Type 1 enclosures shall be provided.

3. For exterior units, full-guarded, surface-mounted, standard-duty weatherproof-type remote control stations designed for key operation and with NEMA Type 4 enclosures shall be provided.



g. Automatic Reversing Control

1. Each door shall be furnished with an electric automatic safety switch, extending the full width of the door bottom, located within a neoprene or rubber astragal mounted to the bottom rail of the door or an “electric eye” system.

2. The mechanism shall be manufactured so that contact with an obstruction before fully closing will immediately stop downward travel and reverse the travel direction so that the door is returned to the fully opened position.

4.3.5.4 Aluminum Windows

1. Aluminum windows shall be designed and constructed for integral installation with the building system.

2. Unless otherwise required in the contract documents, supplier’s standard insulated double-pane windows (AAMA HS-C20 horizontal sliding, commercial grade) with medium natural anodized finish (NAAMM AA-C22A31) shall be provided.

3. Alternatively, fixed sash AAMA, Grade C20 windows may be provided if approved by purchaser.

4. Aluminum extruded frame material shall be in accordance with ASTM B221.

5. Frames shall have “thermal-break” construction, i.e., separate frame and sash members exposed on the exterior from metal parts exposed on the interior by a continuous gasket or filler of rubber or plastic, locked into construction.

6. Mullions between adjacent windows, fabricated of extruded aluminum matching the finish of window units shall be provided.

7. Fasteners made from aluminum, stainless steel, or other material warranted by the window manufacturer shall be provided, and shall be non-corrosive and compatible with aluminum window members, trim, hardware, anchors, and other components of window units.

8. Depending on strength and corrosion-inhibiting requirements, anchors, clips, and window accessories shall be fabricated from aluminum, stainless steel, or hot-dip zinc-coated steel in accordance with ASTM A123.

9. Compression glazing strips and weather-stripping shall be provided in one of the following:

a. Molded neoprene gaskets in accordance with ASTM D2000 designation 2BC415 to 3BC620

b. Molded PVC gaskets in accordance with ASTM D2287, Grade 4



c. Molded expanded neoprene gaskets in accordance with ASTM C509

10. For sliding weather-stripping, woven pile weather-stripping of wool, polypropylene, or nylon pile and resin-impregnated backing fabric, with aluminum backing strip shall be provided in accordance with AAMA 701.

11. Supplier’s standard sealants shall be provided for the joint size or anticipated movement. Sealants shall remain permanently elastic and be non-shrinking and non-migrating.

12. Removable insect screen shall be provided on each operable exterior sash, with finish matching window.

13. To the greatest extent possible, window units shall be glazed at the factory before installation.

14. Unless otherwise required in the contract documents, glass shall be provided in accordance with ASTM C1036 for glass type, class, quality, style, kind, and form and recommendations of the GANA Glazing Manual.

4.3.5.5 Wall Louvers 1. Louvers shall be provided in accordance with the contract

documents.

2. Louvers shall be fabricated from 1.10 mm (0.0428 inch) minimum steel.

3. Blades shall be folded or bent at edges to an angle that excludes driving rains.

4. Blades shall be secured to frames by riveting or welding.

5. Louvers shall be primed and finished to match wall panels.

6. Vertical mullions shall be provided for louvers 120 cm (4 feet) and wider with one mullion for each 120 cm (4 feet) of width.

7. Flanges shall be provided on interior face of frames if air intake or exhaust louvers are to be connected to mechanically operated dampers or metal ductwork.

8. Galvanized steel insect screens in rewirable frames shall be provided on exterior face of louvers. The screens shall be secured with clips that facilitate removal for cleaning and rewiring.

9. Screen frames shall be fabricated to match louvers. 4.3.5.6 Translucent Panels

1. Wall and roof light-transmitting panels shall be in accordance with the wall and roof panel configurations.

2. Panels shall weigh 3.05 kg per s.m. (10-ounces per s.f.) minimum; be one-piece, flexible, and translucent; and be manufactured from fiberglass-reinforced resins.



3. Roof panels shall be capable of supporting a 200-pound concentrated load without failure.

4. Unless noted otherwise in the contract documents, the panels shall be uniformly white with heat transmission of 25% and light transmission of 55% in accordance with ASTM D1494.

5. Other types of skylights may be used if specified or approved by purchaser.

4.3.5.7 Gutters and Downspouts

1. Gutters shall be suspended box sections of a minimum of 0.55 mm (0.0209 inch) galvanized steel formed to match the configuration of the gable trim.

2. Gutters shall be independent of the roof seal and shall be attached to the eave strut adapter by means of a gutter hanger.

3. Downspouts shall be located in accordance with the contract documents and shall be 0.55 mm (0.0209 inch) minimum galvanized factory-colored steel to match the siding, with a minimum cross section of 125 square cm (20 square inches).

4. Unless otherwise required in the contract documents, a 45-degree elbow shall be provided at the base of all downspouts.

5. Downspout straps shall be galvanized steel, 1.5 mm by 25 mm (1/16 inch by 1 inch), and factory-colored to match the downspout.

4.3.5.8 Ventilators

1. Continuous or individual ridge ventilators shall be provided as required and at the locations specified by the contract documents.

2. Continuous ridge ventilators shall be provided in standard length sections.

3. Ventilators shall be provided in the throat sizes and total lengths specified in the contract documents.

4. Ventilators shall be furnished complete with side baffles, ventilator assembly, operating damper, hardware, bird screen, end caps, splice plates, flashing, reinforcing diaphragms, closures, and fasteners.

5. Finish shall match roof panels.

4.4 Fabrication 4.4.1 Unless otherwise modified by the contract documents, state or local laws,

and building codes, hot-rolled and built-up members shall be fabricated in accordance with the AISC Code of Standard Practice for Steel Buildings and Bridges and the AISC Specification for Structural Steel Buildings.



4.4.2 Cold-formed structural members shall be fabricated in accordance with the MBMA Metal Building Systems Manual, “Common Industry Practices.”

4.4.3 Fabrication tolerances for hot-rolled members shall be in accordance with the AISC Code of Standard Practice for Steel Buildings and Bridges.

4.4.4 Fabrication tolerances for built-up members and cold-formed structural members shall be in accordance with the MBMA Metal Building Systems Manual, “Common Industry Practices,” Section 9.

4.4.5 Welding of structural steel shall be in accordance with AWS D1.1.

4.4.6 Welding of sheet steel shall be in accordance with AWS D1.3.

4.4.7 Bolted Connections 4.4.7.1 Fabrication of bolted connections shall be in accordance with Section

4.2.1.13.

4.4.7.2 Unless otherwise required by the design, 20 mm (3/4-inch) diameter high-strength bolt assemblies in accordance with Section 4.3.3.6 shall be used in all primary bolted structural connections.

4.4.7.3 Bolt assemblies in accordance with Sections 4.3.3.6 or 4.3.3.7 shall be used for bolted connections for secondary members such as purlins, girts, and doorframes.

4.4.7.4 If used, direct tension indicator washers shall be installed in accordance with the washer manufacturer’s published specifications.

4.4.7.5 Unless otherwise specified, all structural bolts except for ASTM A490 bolts shall be galvanized.

4.4.7.6 All nuts for high-strength bolts shall be wax-dipped to reduce torque during installation.

4.4.8 Welded Connections Fabrication of welded connections shall be in accordance with Section 4.2.1.14.

4.4.9 Primary Structural Frames 4.4.9.1 Primary structural frames shall be fabricated from hot-rolled

structural steel shapes that are built-up factory-welded, “I-beam”-shaped or open web-type frames consisting of tapered or parallel flange beams and tapered columns.

4.4.9.2 Frames shall be furnished with attachment plates, bearing plates, and splice members, factory-drilled or punched for field-bolted assembly.

4.4.9.3 Endwall columns shall be rolled shapes, built-up factory-welded “I-beam”- shaped, or cold-formed “C” sections, fabricated from 14-gage minimum steel.

4.4.9.4 Endwall beams shall be rolled “C” shapes or “C”-shaped cold-formed sections fabricated from 16-gage minimum steel.



4.4.10 Secondary Structural Framing 4.4.10.1 Purlins and Girts

1. Purlins and girts shall be “C”- or “Z”-shaped sections fabricated from 1.3 mm (0.053 inch) minimum roll-formed steel.

2. Purlin spacers shall be fabricated from 1.7 mm (0.067 inch) cold-formed galvanized steel sections.

3. “C”-shaped girts shall be installed toe down. 4.4.10.2 Wind Bracing

1. Wind bracing shall be steel rod or wire strand (cable) bracing, furnished with necessary slope washers, flat washers, and adjusting nuts at each end.

2. If applicable, diaphragm action bracing may be provided in wall panels in lieu of steel rod or wire strand bracing.

4.4.11 Factory-Applied Finishes 4.4.11.1 Painting

1. Unless otherwise required in the contract documents, all hot-rolled and built-up members shall be factory-primed.

2. Surfaces shall be cleaned of loose mill scale, rust, dirt, oil, grease, and other matter than precludes the bonding of paint, before being primed.

3. Primer shall be applied in accordance with the procedures in SSPC SP3, SSPC SP7, and SSPC SP1, as applicable.

4. Unless otherwise required in the contract documents, members shall be primed with the supplier’s standard rust-inhibiting primer.

5. Unless required otherwise in the contract documents, steel roofing, siding and all related trim shall be coil-coated in accordance with ASTM A755/A755M with fluoropolymer finish at a minimum thickness of 1 mil.

6. Unless otherwise specified in the contract documents, roof, siding, trim, gutters, and downspouts shall match in color.

4.4.11.2 Galvanizing

1. If specified in the contract documents, hot-rolled and built-up members shall be galvanized in accordance with ASTM A123.

2. Cold-formed sections shall be galvanized in accordance with ASTM A653.

3. Except for ASTM A325 Type 1 bolts, bolts, nuts, and washers shall be galvanized in accordance with ASTM B695.

4. A325 Type 1 bolts shall be galvanized in accordance with ASTM A153.



4.4.12 Roofing - Single Sheet Sloped Roof System 4.4.12.1 Roof panels shall be provided precision roll-formed from 0.55 mm

(0.0209 inch) minimum sheet steel.

4.4.12.2 Panel edges for standing seam roofing shall be fabricated for a machine-closed, double lock (360 degrees) seam with factory-applied sealant.

4.4.12.3 Panel edges for through-fastened roofing shall be fabricated for side laps of one full major rib.

4.4.12.4 End splices shall be located over a structural member with a minimum 15 cm (6-inch) lap. The panel ends shall be factory-notched for end splicing.

4.4.12.5 Panels shall be the longest length possible to minimize end splices.

4.4.12.6 Perimeter trim, start/finish panels, ridge panels, and transition flashing shall be provided as required for the roofing system and shall be designed to accommodate the roof’s expansion and contraction.

4.4.12.7 Closures shall be of the exact profile as the panel to provide a weather-tight seal.

4.4.12.8 Sealants and fasteners shall be provided as required by the design to form a weather-tight installation.

4.4.13 Siding - Single Sheet Wall System 4.4.13.1 Wall panels shall be provided precision roll-formed from 0.55 mm

(0.0209 inch) minimum sheet steel.

4.4.13.2 Panel side laps shall be formed by lapping major ribs at the panel edges. The underlapping rib shall have full bearing legs to support the side lap.

4.4.13.3 Panel end splices shall be located over a structural member with a minimum 10 cm (4-inch) lap.

4.4.13.4 Panels shall be the longest length possible to minimize end laps.

4.4.13.5 Corner trim, base trim, and transition flashings shall be provided as required for the wall system and shall provide a weather-tight installation.

4.4.13.6 Sealants and fasteners shall be provided as required by the design to form a weather-tight installation.

4.4.14 Gutters and Downspouts 4.4.14.1 Gutters and downspouts shall be provided in accordance with the

contract documents.

4.4.14.2 Gutter hangers shall be spaced at maximum 120 cm (4-foot) centers.

4.4.14.3 Gutter sections shall be provided in the longest continuous sections possible.



4.4.14.4 At joints, sections shall be lapped a minimum of 10 cm (4 inches) and sealed with sealant, then fastened with fasteners.

4.4.14.5 Gutter end closures shall be sealed with sealant and fastened with pop rivets.

4.4.14.6 Downspouts shall be attached to a thimble installed in the gutter.

4.4.14.7 Downspouts shall be attached to the wall panel using straps on maximum 3 m (10-foot) centers.

4.4.15 Eave and/or gable canopies and overhangs shall be located in accordance with the contract documents.

4.4.16 Mezzanine and platform framing, flooring, grating, deck, railing, ladders, and stairs shall be provided in accordance with the contract documents.

4.4.17 Framed Openings 4.4.17.1 Structural shapes of proper design and size shall be provided to

reinforce openings and to carry imposed loads and vibrations, including equipment furnished by others if specified in the contract documents.

4.4.17.2 Framed openings shall be securely attached to building structural frame.

4.5 Erection 4.5.1 Unless otherwise specified herein or in the contract documents, erection shall

be in accordance with the MBMA Metal Building Systems Manual, “Common Industry Practices,” Section 6.

4.5.2 Material Handling, Delivery, and Storage 4.5.2.1 Prefabricated components, sheets, panels, and other manufactured

items, shall be delivered and stored so that they will not be damaged or deformed.

4.5.2.2 If subjected to water accumulation, materials shall be stored in such a manner so that they will drain freely.

4.5.2.3 Sheets and panels shall not be stored in contact with other materials that might cause staining or corrosion.

4.5.2.4 All damaged material shall be reported to the purchaser to determine if replacement is required.

4.5.3 Inspection of Work Area 4.5.3.1 The work area shall be inspected to verify that conditions are

satisfactory to begin work. This inspection shall include column-bearing surface, foundation level and elevation, and anchor bolt locations and projections.

4.5.3.2 The purchaser shall be notified in writing of any unsatisfactory conditions.



4.5.4 Structural and Miscellaneous Steel Erection of structural and miscellaneous steel shall be in accordance with the supplier’s drawings, the contract documents, AISC Code of Standard Practice for Steel Buildings and Bridges, OSHA Part 1910 and Part 1926, and any applicable state or local regulations or codes.

4.5.5 Roofing and Siding 4.5.5.1 General

1. Roofing and siding shall be installed in accordance with this Practice, and the contract documents.

2. Ribbed or fluted sheets shall be lapped one full rib corrugation.

3. Panels and associated items shall be joined for neat and weather-tight enclosure.

4. “Panel creep” or application not true to line shall be avoided.

5. Factory finishes shall be protected from damage.

6. Field cutting of exterior panels by torch shall not be permitted.

7. Weather seal shall be provided under ridge cap.

8. Roof panels shall be flashed and sealed at eave and rake with rubber, neoprene, or other closures to exclude weather.

4.5.5.2 Standing Seam Roof Panel System

1. Roof panels shall be fastened to purlins with concealed clips.

2. Clips shall be installed at each support.

3. At end laps of panels, sealant shall be installed between panels.

4. Factory-caulked cleats shall be installed at standing-seam joints. Cleats shall be machine-seamed to the panels to provide a weather-tight joint.

4.5.5.3 Through-Fastened Roof Panel System

1. Roof panels shall be fastened to purlins with fasteners and required spacing.

2. Sealant shall be installed continuously at all panel side and end laps.

4.5.5.4 Wall Panel System

1. Elastomeric sealant shall be applied continuously between metal base channel (sill angle) and foundation, and elsewhere as necessary for waterproofing.

2. Sealant and backup shall be handled and applied in accordance with the sealant manufacturer’s recommendations.

3. Unless otherwise required, bottoms of wall panels shall be aligned and the panels shall be fastened with blind rivets, bolts, or self-tapping screws.



4. Flashings and trim around openings and similar elements shall be fastened with self-tapping screws.

5. Window and door frames shall be fastened with machine screws or bolts.

6. If building height requires two rows of panels at gable ends, lap of gable panels shall be aligned over wall panels at eave height.

7. Fasteners shall be installed with power tools having controlled torque adjusted to compress neoprene washer tightly without damage to washer, screw threads, or panels.

8. Weatherproof escutcheons or flashing shall be provided for pipe, conduit, cable tray, and duct penetrations at exterior walls as required in the contract documents.

4.5.6 Accessories 4.5.6.1 Sheet Metal Accessories

1. Gutters, downspouts, ventilator louvers, and other sheet metal accessories shall be installed in a manner that provides positive anchorage to building and weather-tight mounting.

2. The accessories’ operating mechanisms shall be adjusted to provide proper operation.

4.5.6.2 Hollow Metal Doors and Frames

1. Doors and frames shall be installed in accordance with PIP ARS08112.

2. Frames shall be securely anchored to building structure.

3. Hardware shall be adjusted to provide proper operation. 4.5.6.3 Overhead Doors

1. Doors and operating equipment shall be set complete with necessary hardware, jamb and head mold stops, anchors, inserts, hangers, and equipment supports.

2. Moving hardware shall be adjusted to provide proper operation. 4.5.6.4 Windows

1. Windows shall be anchored securely in place.

2. Perimeter of each unit shall be sealed with the elastomeric sealant used for panels.

3. The operating sash and hardware shall be adjusted and lubricated to provide proper operation.

4. Surfaces of window units shall be cleaned.

5. Screens shall be mounted directly to the frames with tapped screw clips.



4.5.6.5 Field Glazing

1. Channel surfaces shall be cleaned and primed as recommended by sealant manufacturer.

2. Glass shall be cut to required size for measured opening.

3. Adequate edge clearance and glass bite shall be provided all around.

4. Glass that has significant edge damage or other defects shall not be installed.

5. Broken or damaged glass shall be replaced.

6. Each piece of exterior glass shall be installed to be airtight and watertight through normal weather/temperature cycles and through normal door/window operation.

7. Factory-sealed double-pane windows shall be repaired as required by the window manufacturer.

4.5.6.6 Insulation

1. Insulation shall be installed concurrently with installation of roof and wall panels.

2. Blankets shall be installed straight and true in one-piece lengths with both sets of tabs sealed to provide a complete vapor barrier.

3. Insulation shall be located on inside of roof and wall sheets, extending across the flange of purlin or girt members and held taut and snug to panels with retainer clips.

4. Retainer strips shall be installed at each longitudinal joint in such a manner that the strips are straight and taut and will hold the insulation firmly in place.

4.5.6.7 Translucent panels shall be attached to structural framing and roof and wall panels in a manner that provides a weather-tight installation.

4.5.7 Cleaning and Touch-Up 4.5.7.1 All component surfaces shall be cleaned.

4.5.7.2 Abrasions, marks, skips, and other defects to finished surfaces shall be touched up with the same type of finish.


PIP ARS13120(Pre-Engineered Metal Building Specification)

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Transcript of PIP ARS13120(Pre-Engineered Metal Building Specification)