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SMACNA: Sheet Metal and Air Conditioning Contractors' National Association

SMACNA, the Sheet Metal and Air Conditioning Contractors’ National Association is an international trade association and ANSI-accredited standards developing organization representing 1,834 member firms in 103 chapters throughout the United States, Canada, Australia, and Brazil. SMACNA standards and manuals address all facets of the sheet metal industry, from duct construction and installation to air pollution control, energy recovery, and roofing. Standards from SMACNA are available both individually, directly through the ANSI webstore, and as part of a Standards Subscription. If you or your organization are interested in easy, managed, online access to standards that can be shared, a Standards Subscription may be what you need - please contact us at: StandardsSubscriptions@ansi.org or 1-212-642-4980 or Request Proposal Price.

Below are SMACNA's best-selling standards. To find additional standards, please use the search bar above.

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SMACNA 1966-2005

HVAC Duct Construction Standards - Metal & Flexible

The third edition of the HVAC Duct Construction Standards û Metal and Flexible is intended primarily for commercial and institutional duct construction. The standard contains tables and details for constructing ductwork for ╜ö to 10ö 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 6ö wg positive and negative pressure and sizes up to 96ö. 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.


SMACNA 1819-2002

Fire, Smoke And Radiation Damper Installation Guide For HVAC Systems

An application and installation study guide for architects, engineers, code officials, manufacturers and contractors outlining their respective responsibilities mandated by the model codes. Covers fire dampers, breakaway connections, combination fire and smoke dampers, framing of structural openings, contract plan marking, installation instructions and special applications. Also contains information on active and passive smoke control systems and smoke detectors, plus soft metrics. The appendices on smoke control and smoke detectors have been revised to reflect the current technology and requirements for those applications.


SMACNA 016-2012

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 StandardsùMetal & 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.


SMACNA 1637-1998

Indoor Air Quality - A Systems Approach

This manual provides for a system-type approach to identifying and solving indoor air quality (IAQ) concerns, while introducing the fundamentals of IAQ. The manual also updates the technical aspects of IAQ with regard to typical contaminants found in todayÆs facilities. Other topics covered are testing and identification and source mitigation. Time-saving IAQ tracking forms can be modified to meet specific contractor needs.


SMACNA 1981-2008

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. Includes a more extensive list of bracing options and complies with current building codes all within a single document for user convenience


SMACNA 1108-2008

Accepted Industry Practice For Industrial Duct Construction

This guide is a compilation of accepted industry practices and construction reinforced or unreinforced, for operation from 4 in. to 20 in. wg positive or negative pressure, and from ambient to 650 F for carbon or stainless steel, 400 F for galvanized steel, and 120 F for aluminum. Also rectangular duct fabricated from panels from a few inches up to 5 ft wide, all welded, Pittsburgh, grooved seam pipe lock or standing seam joined duct, for operation from 4 in. to 20 in. wg positive or negative pressure, and for the same materials and temperature limits as round duct. Also includes chapters on industrial applications, material properties, hangers and supports, fittings, vents, doors, discharge ducts (small stacks) and surface preparation of metals.


SMACNA 1937-2004

Architectural Sheet Metal Inspection Guide

An invaluable inspection resource for owners of standing seam, batten seam, or Bermuda-type roofs. Presents practical troubleshooting and corrective tips for typical problems of roof panels, gutters, downspouts, fascia, copings, flashing, ridges and hips, valleys, expansion joints, penetrations, fasteners and soldering. Also provides relevant information regarding construction of these architectural elements, the purpose of each, as well as what to look for during periodic inspections. Sealants, moisture transfer methods and air leakage are also covered. Emphasizes the importance of regular and appropriately timed inspections because a small problem discovered early can be fixed at a low cost, preventing minor damage from becoming a substantial problem until the cost of repair and remediation becomes excessive. Contractors will find this book a valuable resource to provide owners or facility managers along with the standard building completion documents.


SMACNA 1120-2012

Architectural Sheet Metal Manual

This completely updated publication contains the most comprehensive recommended practices available for proper design and installation of custom-fabricated architectural sheet metal including roof drainage system design for scuppers, gutters and downspouts. Features an expanded historical restoration section covering skylights, cornices, domes, and spires; new moisture and maintenance guide on underlayments; mechanical fasteners and soldering qualification guidance; and updated metals selection data. Offers new construction techniques and alternative methods of design and installation reflecting climatic conditions and rainfall rates. An upfront, fast ôlook-upö key speeds information retrieval. Also covers flashing, metal roofs, copings, gravel-stop fascia. Includes wind uplift pressure test reports confirming superior performance of custom-fabricated metal roofing. Applies to commercial, industrial, and residential buildings.


SMACNA 1884-2003

Fibrous Glass Duct Construction Standards

Provides the performance characteristics for fibrous glass board as determined by the North American Insulation ManufacturersÆ Association (NAIMA) and Underwriters Laboratories (UL) as well as specifications for closures and illustrations of how to construct the full range of fittings. Also covers 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 2ö wg or less. Metric units have been provided in a more convenient format, as well as an updated inspection checklist.


SMACNA GSS-2011

Guyed Steel Stacks

A standard of practices for the design, fabrication and installation of guyed steel stacks intended for use by contractors, fabricators, and designers of heating equipment and industrial process facilities, among others. Devoted exclusively to vertical, uniform diameter, guyed stacks either founded at ground level or through-the-roof installations. Tables provide for stacks of heights ranging from 20 ft. to 80 ft; for specific wind velocities of 100, 125, and 150 miles per hour; and diameters of 12 in. to 72 in. Stacks are listed for either longseam welded or spiral lockseam fabrication


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