video corpo

Specification Guide

Specification Guide
1 / 32 PagesView full catalog

Specification Guide

Product catalog summary
General Overview
This document is a Standard Specifications Guide from Nucor Buildings Group, designed to assist architects and engineers in selecting appropriate building system solutions. It references the latest MBMA Metal Building Systems Manual and is subject to updates.

1. General
The scope includes structural members, connection bolts, and accessories. It defines dimensional terminology and describes various building types such as solid web framing and single slope buildings.

2. Design
Design criteria adhere to AISC and AISI specifications, with buildings designed by registered professional engineers. Non-standard loads like crane and seismic loads are considered, following specified building codes.

3. Anchor Bolts and Foundations
Anchor bolts are designed to resist column reactions but are not supplied by NBG. Foundations must be designed by a qualified engineer.

4. Drawings
NBG provides anchor bolt, erection, and permit drawings, typically issued on 11” x 17” paper.

5. Structural Framing
Primary structural members transfer loads to the foundation, while secondary members transfer loads to primary members. Minimum design thicknesses and material standards are specified.

6-9. Roof Covering Systems
Details on various roof systems, including R-Panel and CFR Insulated Metal Panel systems, covering panel material, configuration, fasteners, installation, and maintenance.

10-11. Wall Covering Systems
Specifications for wall coverings include panel material, configuration, trim, fasteners, and installation.

12. Accessories
Specifications for metal doors, windows, skylights, light panels, extensions, insulation, liner panels, crane systems, and ridge vents.

13-14. Serviceability and Expansion Joints
Standard serviceability criteria and expansion joint requirements are summarized.
Specifications and Procedures
  • Welding and Bolting: Welders must be qualified according to specified codes. High-strength bolts are required for primary structural members.
  • Manufacturing and Coating: Light gauge sections are roll or brake-formed to MBMA tolerances. Non-galvanized members receive a primer coat after cleaning.
  • Identification and Assembly: Framing members must have identifying marks for erection. Rigid frame columns and beams are shop-welded.
Roof Covering Specifications
  • NBG R-Panel Roof: Minimum slope is 1/2" in 12". Panels are 26-gauge steel, qualifying for UL 580 Class 90® and FM 1-135 uplift ratings.
  • Material and Coating: Panels are made from galvanized or Galvalume® steel, with specific coating thicknesses.
  • Fasteners and Sealants: Roof panel fasteners are self-drilling screws with a corrosion-resistant coating.
Standing Seam Roof System
  • General Specifications: Includes panels, clips, flashing, and fasteners. Minimum slope is 1/4" in 12".
  • Material and Configuration: Panels are 24-gauge Galvalume® steel with trapezoidal ribs.
  • Installation and Maintenance: Follow NBG's instructions for storage and installation. Regular maintenance is required.
Specifications and Procedures:
  • Erection Sequence: Buildings with the NBG Loc Seam Roof System without an endlap can be erected from either end.
  • Coordination with Other Trades: Supports for the roof system must be provided as shown in drawings.
  • Erection Care: Erectors must comply with all construction and safety regulations.
  • Field-Cutting of Panels: Non-abrasive cutting tools should be used.
  • Roof-Top Units and Curb Supports: The roof system is designed as a floating system.
Roof Covering Systems:
  • NBG Loc Seam Vertical Rib Standing Seam Roof System: Includes panels, clips, flashing, and fasteners.
  • Panel Material: Made from 24 gauge Galvalume® steel.
  • Panel Configuration: Panels have 2” deep vertical ribs.
  • Trim and Flashing: Color-coated trim and flashing are provided.
  • Installation: Must follow NBG's printed instructions.
  • Maintenance: Roofs must be kept free of debris and inspected yearly.
NBG Insulated CFR Metal Panel Roof System:
  • General: Includes panels, clips, flashing, and fasteners.
  • Panel Material: Consists of two layers of material sandwiching foam insulation.
Panel Configuration
Panels feature 2” deep vertical ribs with widths of 36" or 40".

Panel Clip & Fasteners
Only fixed panel clips are used, attached with specific fasteners.

Trim and Flashing
Color-coated trim and flashing are provided at critical points.

Installation
Panels are installed left to right, with specific instructions.

Clean-Up & Maintenance
Daily cleaning during construction is required.

Erection Sequence
Buildings with the Insulated CFR Roof System are erected from left to right.

Coordination with Other Trades
Supports must be coordinated with other trades.

Erection Care
Erectors must comply with safety regulations.

Field-Cutting of Panels
Non-abrasive tools should be used.

Wall Covering
Wall panels are precision roll-formed from 26 gauge steel.

Panel Material
Galvanized and Galvalume® steel sheeting is used.

Trim and Flashing
Trim is provided at necessary points.

Fasteners
Specific fasteners are used for panel attachment.

Sealants
Polyurethane sealants are used at trim endlaps.

Closures
Closures are made of closed-cell polyethylene foam.

Installation of Panels
Panels are installed with specific lap and endlap requirements.

Clean-Up
All contaminants must be removed post-installation.

Insulated Wall Panel Covering
Insulated panels feature various profiles.

Panel Material
Panels are made from pre-painted Galvalume® steel.

Trim and Flashing
Trim matches wall finishes.

Fasteners
Fasteners are concealed within panel laps.

Sealants
Sealants are used at critical points.

Installation of Panels
Panels are secured with clips and fasteners.

Clean-Up & Maintenance
Daily cleaning during construction is necessary.
Cleaning and Maintenance
Contractors must clean all panels, trim, and gutters after construction. Regular maintenance is required based on site conditions.

Accessories
Metal Doors & Windows: NBG provides factory-assembled doors and windows.
Framed Openings: Framing for overhead doors should match the depth of girts.
Prismatic Skylights: Enhance light diffusion without UV damage.
Translucent Light Panels: Made from glass fiber reinforced composite.
Rake/Eave Extensions & Canopies: Provide weather-tight overhangs.
Insulation: Recommendations vary based on the roof system.
Liner Panel: Made from 28 gauge material.
Crane Systems: Specifications for monorail and underhung cranes.
Ridge Vents: Facilitate airflow and are available in specific sizes.
Standard Serviceability Criteria
Align with IBC, ASCE7, and AISC 360 standards.

Standard Expansion Joint Requirement Summary
Details on expansion joint requirements are provided.
See more

Catalog excerpts

Specification Guide-1

The following Nucor Buildings Group (American Buildings, CBC Steel Buildings, Kirby Building Systems and Nucor Building Systems), Standard Specifications Guide provides the owner or design professional a detailed description of all standard Nucor Buildings Group (NBG) products. This guide is designed to aid the architect or engineer of record in the process of specifying the best building system solution. These comprehensive specifications cover many aspects of the NBG product line. Since it is possible to apply the various NBG products covered in this manual in many different ways, not all conditions are addressed, and more detailed information is available. For the unique needs of an individual project building design, please contact the appropriate brand's engineering team for assistance. The specifications incorporates, by reference, the latest edition of the MBMA Metal Building Systems Manual, published by the Metal Building Manufacturers Association (MBMA), to all NBG project specifications. Notice: In keeping with a program of continuous and never ending improvement all information contained herein is subject to change without notice. 1. General 1.1. Scope 1.2. Dimensional Terminology 1.3. Building Types Design 2.1. Design Criteria 2.2. Engineering Certifications 2.3. Non-Standard Design Loads 2.4. Auxiliary Design Loads 2.5. Load Combinations Anchor Bolts and Foundations 3.1. Anchor Bolts 3.2. Foundations Drawings 4.1. General Structural Framing 5.1 General 5.2. Primary Structural Members 5.3. Secondary Structural Members Roof Covering NBG R-Panel Roof Panel 6.1. General 6.2. Panel Material 6.3. Panel Configuration 6.4. Fasteners 6.5. Trim and Flashing 6.6. Sealants STANDARD SPECIFICATIONS GUIDE

 Open the catalog to page 1
Specification Guide-2

6.7. Closures 6.8. Installation of Panels 6.9. Clean Up Roof Covering NBG Trapezoidal Standing Seam Roof Systems 7.1. General 7.2. Panel Material 7.3. Panel Configuration 7.4. Panel Clip & Fasteners 7.5. Trim and Flashing 7.6. Installation 7.7. Clean-Up 7.8. Maintenance 7.9. Erection Sequence 7.10. Coordination with Other Trades 7.11. Erection Care 7.12. Field-Cutting of Panels 7.13. Roof-Top Units and Curb Supports Roof Covering NBG Loc Seam Vertical Rib Standing Seam Roof System 8.1. General 8.2. Panel Material 8.3. Panel Configuration 8.4. Panel Clip & Fasteners 8.5. Trim and Flashing 8.6....

 Open the catalog to page 2
Specification Guide-3

9.11. Field-Cutting of Panels Wall Covering 10.1. General 10.2. Panel Material 10.3. Panel Configuration 10.4. Trim and Flashing 10.5. Fasteners 10.6. Sealants 10.7. Closures 10.8. Installation of Panels 10.9. Clean-Up Insulated Metal Panel Wall Covering 11.1. General 11.2. Panel Material 11.3. Panel Configuration 11.4. Trim and Flashing 11.5. Fasteners 11.6. Sealants 11.7. Installation of Panels 11.8. Clean-Up & Maintenance Accessories 12.1. Metal Doors & Windows 12.2. Framed Openings 12.3. Curb Mounted Prismatic Skylights 12.4. Translucent Light Panels 12.5. Rake / Eave Extensions &Canopies...

 Open the catalog to page 3
Specification Guide-4

Scope 1.1.1. The building shall consist of all primary and secondary structural members, connection bolts, canopies, roof extensions, sheeting, trim, flashing, doors, fasteners, gutters, downspouts, and other miscellaneous items and accessories as specified, shown, or called for on NBG drawings or order documents. Refer to the Latest Edition of the Metal Building Systems Manual section entitled “Common Industry Practices” for the standards in which this guide will be used. NBG will not provide items not specifically called for in the NBG order documents. Dimensional Terminology 1.2.1. The building...

 Open the catalog to page 4
Specification Guide-5

DESIGN side column has been eliminated. The lean-to rafter is supported by the main building frame, sidewall, or endwall column. 2. Design Criteria 2.1.1. All structural steel sections and welded plate members shall be designed in accordance with the latest editions of the AISC 360 Specification for Structural Steel Buildings or CSA Specification for Structural Steel Buildings (S16) and the latest edition of the AWS D1.1 Structural Welding Codes or CSA Welded steel construction (metal arc welding) (W59), as required by the order documents and the specified building code. 2.1.2. All cold-formed...

 Open the catalog to page 5
Specification Guide-6

ANCHOR BOLTS AND FOUNDATION specifically requested by the customer. Non-Standard Design Loads 2.3.1. All building types shall be available with non-standard design loads as required by the local code or governing body provided these loads are specified on the order documents. Special dead, live, or wind loads shall be applied in the same manner as standard design loads for the type of building involved as long as demonstrated in the latest Metal Building Systems Manual. Auxiliary Design Loads 2.4.1. Crane and impact loads shall be applied in accordance with the latest editions of the AISC Specification...

 Open the catalog to page 6
Specification Guide-7

STRUCTURAL FRAMING 4.1.1. NBG shall supply on all orders three sets of anchor bolt drawings and reactions. 4.1.2. NBG shall supply on all orders three sets of final erection drawings.Upon request, NBG shall supply three sets of permit drawings showing engineering design details, critical clearances, key connection details, material specifications, and lateral load resisting elements such as bracing, diaphragm, and shear wall layouts. 4.1.3. NBG shall supply three sets of approval drawings on specified jobs. Approval drawings shall show building layout, critical clearances, critical details, and...

 Open the catalog to page 7
Specification Guide-8

STRUCTURAL FRAMING minimum yield stress). 5.1.7. Cable used for diagonal bracing shall conform to ASTM A-475; coating Class A, GradeExtra High Strength 7 wire. Threaded rod shall meet ASTM A-529 or A-572, Grade 50 requirements. Angle sections shall meet minimum A-36, A-572 or A-529 Grade 50 requirements. 5.1.8. Structural steel members shall be sheared, formed, punched, welded, and painted by the manufacturer. All shop connections shall be welded in conformance with standards based upon the current edition of AWS D1.1 or CSA W59 referenced previously in this guide in Paragraph 2.1.1. Welders...

 Open the catalog to page 8
Specification Guide-9

ROOF COVERING welding of joist bridging and seats is also an option. Eave struts shall be roll-formed or brake-formed "C" sections. Wind bracing shall consist of diagonal cable, rod or angle bracing. Adjustment to cable braces shall be made by an eyebolt assembly. Adjustment to rod bracing may be by threaded assembly. Angle bracing is not adjustable and may require final field welding. Flange bracing shall consist of angle bracing connected to the web of the purlin or girt and to the compression flange of the primary structural member. Flange braces shall be attached to bar joists either by field...

 Open the catalog to page 9
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.