Fabrication & Prefabrication

SMACNews

Construction is Booming Down Under

One of Fredon Air's major projects includes HVAC system design, fabrication, and delivery at the central Acute Services Building at Westmead Hospital in Westmead, Sydney, New South Wales.

SMACNews

Zahner’s South Korean Tower Sparkles

A dramatic curved stainless steel façade gave the A. Zahner Co. of Kansas City, Missouri, another opportunity to further expand its geographic reach to the Harim Tower in Gangnam, Seoul, South Korea.

Resource

What’s in it for me? Documenting the benefits of Lean

Documenting the benefits of Lean admittedly is a challenge, because no two projects are exactly alike. However, we have a substantial body of analysis that suggests the success realized on Lean projects is real and can be duplicated from project to project. This is Part II of a two-part series that explores the benefits and challenges of lean construction. 

Video

J.F. Ahern: Prefab Time Lapse Video

J. F. Ahern Co. recently unveiled a time-lapse video that was filmed over several months, chronicling the assembly and installation of 32 multi-trade racking systems for the Froedtert CFAC project in Milwaukee.

J.F. Ahern: What is Prefabrication? Video

In this video, SMACNA member J.F. Ahern takes you through project stages including estimating, pre-planning, design/coordination, scheduling and purchasing, fabrication/assembly, quality control, and field installation to show how prefabrication works and benefits projects though improved risk, timing and cost.

Book

Thermoset FRP Duct Construction Manual

This authoritative manual is one that design engineers, industrial engineering departments, pollution control authorities, fiberglass manufacturers and installation contractors can rely upon for the proper selection, manufacture, and installation of FRP duct systems. The American National Standard (ANSI/SMACNA 011-2017) contains language, tables and details for the construction of hand lay-up, spray-up, and filament-wound FRP ductwork from 30 in. wg negative pressure to 30 in.wg positive pressure. Round Ductwork sizes are expanded to include up to 96 in. diameter. For rectangular ductwork, new duct stiffener tables are added for easier selection. Recognizing the increased popularity of FRP ductwork, this edition is expanded to include commercial/HVAC applications. Supporting this, an underground installation section is added as well as added language on testing and balancing, duct sealing, and duct leakage. Duct hangers and support iinformation have been expanded and organized into a separate chapter which now includes: upper attachments, hanger selection tables, channel (strut) used as trapeze, riser support details, and more. Appendices in this edition cover: extended hanger spacing, general information on safe handling of thermoset fiberglass reinforced plastic duct, and allowable FRP defects.

Foreword
Table of Contents


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Book

Architectural Sheet Metal Quality Assurance Guide

Developed to provide guidance in the evaluation of exterior sheet metal building components - roofing systems, exterior walls, flashings, copings, etc. - during initial construction and for ongoing condition assessments and maintenance. The manual can assist owners/operators that may have limited knowledge and experience in the specifics of architectural sheet metal components, specification, fabrication, installation, or evaluation. The manual can also serve as a procedural inspection guide for experienced professionals who review architectural sheet metal systems regularly.

Foreword
Table of Contents


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Book

Phenolic Duct Construction Standards

This is the first edition of the SMACNA Phenolic Duct Construction Standards. This American National Standard (ANSI/SMACNA 022-2015) contains instruction, tables and details intended to provide basic phenolic duct fabrication and installation standards to the industry. The standard includes model project specifications, duct performance characteristics, specifications and closures, fittings and connections, reinforcement, hangers and support, accessories, and an inspection checklist. The standard is applicable for ducts up to 80 in. x 80 in. size that operate to 4 in. wg positive pressure class and to 3 in. wg negative pressure class.

Foreword
Table of Contents


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Book

Energy Systems Analysis and Management

This timely document provides an overview of a variety of energy-related business opportunities for commercial, residential, and institutional buildings. Presents contractors, building owners and operators, facility managers, and system designers with the tools needed to evaluate an existing facility for energy savings potential. Addresses both new construction and retrofits. Includes energy conservation management, the energy audit and energy estimating procedures. HVAC system maintenance and indoor air quality, energy management maintenance and monitoring, energy recovery systems and energy recovery system investment analysis.

Foreword
Table of Contents


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Round Industrial Duct Construction Standards

The American National Standard (ANSI/SMACNA 005-2013) expands the scope of the 1999 version, updating the duct materials to include aluminized steel, temperature correction factors for round industrial and minimum decimal thickness for aluminum duct selection tables. Offers a standardized, engineered basis for design and construction of industrial ducts of Classes 1 to 5 air. Includes a spiral duct chapter for Classes 1 and 2 air that covers design pressures ranging from 30 in. wg negative to 50 in. wg positive, plus carbon and galvanized steel tables. Expanded tables for stainless steel and aluminum, expanded tables for duct sizes up to 96 in. diameter, introduction of a new Duct Class 5 for systems handling corrosives and spiral lockseam pipe.

Foreword
Table of Contents


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Book

HVAC Air Duct Leakage Test Manual

This American National Standard, ANSI/SMACNA 016-2012, covers revised leakage criteria and builds on the proven methods for testing ductwork for air leaks from the first edition. Contains updates to the expected leakage rates for ductwork constructed to the SMACNA HVAC Duct Construction Standards—Metal & Flexible, duct leakage test procedures, recommendations on use of leakage testing, types of test apparatus and test setup and sample leakage analysis. Includes a new educational chapter for designers and specifiers, to aid in the specification and implementation of duct leakage and testing methods.

Foreword
Table of Contents


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Book

Guyed Steel Stacks

The first edition of the Guyed Steel Stack manual is devoted exclusively to vertical, uniform diameter guyed stacks with welded longseam or spiral lockseam fabrication for at-grade or penetrated roof installations. This guide was developed to provide all pertinent information for guyed stack construction through the use of selection tables listing specific combination of stack diameter, stack height and maximum wind velocity.

Foreword
Table of Contents


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Online Training

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HVAC Air Duct Leakage

This webinar presentation on duct air leakage will define what duct air leakage is and how it relates to equipment air leakage, accessory air leakage, and HVAC system air leakage.  Discussion about duct air leakage with respect to various codes and LEED® will be covered as well as common misconceptions and myths. 

Book

Seismic Restraint Manual Guidelines for Mechanical Systems

The Seismic Restraint Manual: Guidelines for Mechanical Systems, 3rd edition 2008, ANSI/SMACNA 001-2008, is an updated set of guidelines that shows designers and contractors how to determine the correct restraints for sheet metal ducts, piping and conduit, so that they are more likely to remain attached to the building during an earthquake. The manual shows how very low- and very high-risk areas of the country can be accommodated. The new edition includes a more extensive list of bracing options and has been revised to comply with current building codes all within a single document for user convenience.

Foreword
Table of Contents


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Technical Resource

Duct System Calculator, Metric

This calculator, complete with detailed instructions, enables HVAC system designers to design an average duct system without additional references. The only calculator in the industry to include the 0.0003 roughness factor duct friction loss data for designing straight, round or rectangular sheet metal ducts.


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Book

Sheet Metal Welding Guide

This publication and the wealth of information it contains are intended to assist contractors, estimators and shop supervisors in profitably managing the welding activity in a sheet metal shop. Updated coverage of welding processes; flux-cored wire guidelines; and the latest equipment. The safety chapter covers such items as health effects, hazard controls and safety procedures. Other chapters include guidelines for developing welding procedures, controlling weld quality, estimating, hiring and training welders and welder certification.

Foreword
Table of Contents


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Book

HVAC Systems Duct Design

The fourth edition of HVAC Systems Duct Design presents the basic methods and procedures required to design HVAC air distribution systems. This manual provides the HVAC system designer detailed information on duct design and U.S. and metric units are provided in all examples, calculations, and tables. In addition to the basic engineering guidelines for the sizing of HVAC ductwork systems, the manual also provides related information on materials, methods of construction, economics of duct systems, duct system layout, pressure losses, fan selection, duct leakage, acoustic considerations, and Testing, Adjusting and Balancing (TAB).

Foreword
Table of Contents


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Book

HVAC Duct Construction Standards - Metal and Flexible

The third edition of the HVAC Duct Construction Standards • Metal and Flexible is intended primarily for commercial and institutional duct construction. This American National Standard (ANSI/SMACNA 006-2006) contains tables and details for constructing ductwork for ½" to 10" wg positive and negative pressures. This edition improves upon the second edition with expanded pressure class tables, separate tables for TDC/TDF construction and expanded tables for round duct construction including 6" wg positive and negative pressure and sizes up to 96". New in this edition is an engineering and design chapter to provide additional information to design professionals, double-wall construction details, new casing construction details and additional accessory items. The standard is applicable for construction using uncoated steel, galvanized and stainless steels and a limited range of aluminum ducts. This standard has been adopted in the ICC International Mechanical Code. Includes soft metrics.

Foreword
Table of Contents


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Book

Rectangular Industrial Duct Construction Standards

This second edition expands the scope of the 1980 version, updating original text to incorporate a revised theory of design, new materials and more “user friendly” tables. Included are new tables for stainless steels and aluminum, plus expanded chapters on materials, welding practices, and a guide specification. It covers the simple, low or moderate temperature and pressure (or vacuum) indoor systems as well as the more complex outdoor systems that operate at moderate to high temperature and pressure (or vacuum), and are subject to higher and more complex external loading. Approved as an American National Standard (ANSI/SMACNA 002-2011).

Foreword
Table of Contents


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Book

Fibrous Glass Duct Construction Standards

The updated 88-page manual provides the performance characteristics for fibrous glass board as determined by the North American Insulation Manufacturers’ Association (NAIMA) and Underwriters Laboratories (UL) as well as specifications for closures and illustrations of how to construct the full range of fittings. Also covered are details for connections to equipment and air terminals, hanger schedules, reinforcement requirements, fabrication of rectangular duct and fittings, closures of seams and joints, channel and tie rod reinforcements, plus hangers and supports. For 2” w.g. or less. Metric units have been provided in a more convenient format, as well as an updated inspection checklist.

Foreword
Table of Contents


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Book

Accepted Industry Practices for Sheet Metal Lagging

This document contains accepted industry practices for the fabrication and installation of sheet metal lagging, used to cover and protect insulated areas of equipment. The fabrication practices included illustrate the requirements of most commonly encountered insulated surfaces, such as boiler walls, flues, ducts, precipitators, air heaters, economizers, tanks, fans,etc. This publication is intended to assist the designer, contractor and plant engineer in understanding and solving the complexities involved in the design, fabrication and installation of sheet metal lagging systems.

Foreword
Table of Contents


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Book

Residential Sheet Metal Guidelines

The first edition of SMACNA’s Residential Sheet Metal Guidelines offers contractors, designers, builders and homeowners a source of expert information on the proper fabrication and installation of exterior sheet metal in residential buildings. Covering topics that include roof drainage systems, decks, chimneys, windows, doors and ledges, the new manual presents details and explanations based on and designed for low-rise residential buildings, up to three stories, that are used as single-family and multi-family dwellings. The guide also highlights details commonly used in residential sheet metal work throughout the industry. In addition to generic detail drawings, design data and the appendixes will help users to adapt the drawings to local climate and project conditions. Carefully examining the information along with the local climate conditions will enable users to select the proper details for practically any residential architectural sheet metal application.

Foreword
Table of Contents


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Book

Kitchen Ventilation Systems and Food Service Equipment Guide

A basic reference guide to industry-accepted practices for fabrication and installation of commercial kitchen ventilation systems and custom-built food preparation equipment. Assists the designer, contractor and code officials in understanding the complexities of designing, installing, construction and balancing both the exhaust and make-up air systems required in commercial kitchen ventilation. The food service equipment section offers practical guidelines for designing, fabrication, evaluating and installing a wide range of custom-built food service equipment. Includes tables, shelves and wall lining details as well as minimum dimension and metal thickness standards for constructing light, medium and heavy-duty kitchen equipment that should provide owners with years of trouble-free usage. Developed in accordance with ANSI/NSF-2-1996. Also included is an appendix that provides application details for the seismic bracing of food service equipment.

Foreword
Table of Contents


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Technical Resource

Duct System Calculator, Imperial

This calculator, complete with detailed instructions, enables HVAC system designers to design an average duct system without additional references. The only calculator in the industry to include the 0.0003 roughness factor duct friction loss data for designing straight, round or rectangular sheet metal ducts.


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Book

Thermoplastic Duct (PVC) Construction Manual

Contains the latest and most useful information from manufacturers, fabricators, and corrosion specialists on the use and application of thermoplastic materials. This fully illustrated manual provides full construction details and standards for PVC ducts of 2", 4", and 10" w.g. positive and negative. It gives guidance in understanding these synthetic materials, as well as assistance in determining their strengths, corrosion resistance and advantages over other materials. A model specification enables one to easily prepare custom project documents for installation of PVC air handling systems. Also covered are polypropylene and polyethylene, CPVC, LDPE, HDPE, UHMW, ABS, Acrylics, and PVDF. Includes soft metrics.

Foreword
Table of Contents


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Resource

Architectural Industry Links

This is a list of prominent organizations that SMACNA department and members communicate with on a variety of topics and issues related to architectural metals.  

SMACNews

'And They’re Off!'

SMACNA member Poynter Sheet Metal ‘raced’ to complete its work at Churchill Downs so the legendary track could be ready for the world-renowned Kentucky Derby.