Sheet metal & Air Conditioning Contractors’ National Association

Overview

Technical standards and manuals developed by SMACNA members have worldwide acceptance by the construction and code community, as well as local and national government agencies. ANSI, the American National Standards Institute, has accredited SMACNA as a standards-setting organization. SMACNA standards and manuals address all facets of the sheet metal and HVAC industry – including duct construction and installation, indoor air quality, energy recovery, roofing and architectural sheet metal, welding, and commissioning.

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Technical Inquiry

SMACNA develops and publishes more than 30 technical documents with more being added to the library each year and several in review and revision cycles. In accordance with SMACNA Policy, a formal interpretation of the literal text of SMACNA's technical manuals, guides or standards is available but only on the basis of written request or inquiry.

The request must pertain to a specifically identified portion of a SMACNA technical document that does not involve published text which already provides the requested information. In considering such requests, SMACNA will not review or judge products or components as being in compliance with the document or publication.

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RECOMMENDED

Bay Area contractors build solutions at SMACNA’s Tech University

Approximately 50 Bay Area SMACNA contractors learned about key SMACNA standards and the latest technical apps during SMACNA’s recent Technical University at the Bay Area Training Center in Oakland, Calif.
More

Updated “Thermoset FRP Duct Construction Manual” available

The second edition of SMACNA's “Thermoset FRP Duct Construction Manual” is now available. The 228-page book is an authoritative resource that design engineers, industrial engineering departments, pollution control authorities, FRP manufacturers, and installation contractors can use for the proper selection, manufacture, and installation of FRP duct systems.
More

New! SMACNA’s Downspout and Gutter Sizing Calculator

One of the most frequently asked architectural questions SMACNA receives is on sizing gutters and downspouts. In response, SMACNA’s Technical Resources Department has created a free Downspout and Gutter Sizing Calculator.  
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“Round Industrial Duct Construction Standards,” 3rd edition, now available

The revised “Round Industrial Duct Construction Standards,” 3rd edition, 2013, an American National Standard, ANSI/SMACNA 005-2013, is now available. SMACNA members will receive an email shortly with instructions on how to receive their gratis copy.
More

2017 Update for Architectural Fascia and Coping Wind Tests Report

SMACNA’s Technical Resources Committee completed wind uplift testing on custom-fabricated fascia and coping architectural elements constructed in accordance with the SMACNA Architectural Sheet Metal Manual.
More

Introducing SMACNA’s Round Industrial Duct Construction App

Round industrial duct construction calculations just got a whole lot easier for SMACNA members.
More

The Latest

  • News Bay Area contractors build solutions at SMACNA’s Tech University

    Approximately 50 Bay Area SMACNA contractors learned about key SMACNA standards and the latest technical apps during SMACNA’s recent Technical University at the Bay Area Training Center in Oakland, Calif.

    More

  • News New! SMACNA’s Downspout and Gutter Sizing Calculator

    One of the most frequently asked architectural questions SMACNA receives is on sizing gutters and downspouts. In response, SMACNA’s Technical Resources Department has created a free Downspout and Gutter Sizing Calculator.  

    More

  • News Updated “Thermoset FRP Duct Construction Manual” available

    The second edition of SMACNA's “Thermoset FRP Duct Construction Manual” is now available. The 228-page book is an authoritative resource that design engineers, industrial engineering departments, pollution control authorities, FRP manufacturers, and installation contractors can use for the proper selection, manufacture, and installation of FRP duct systems.

    More

  • News “Round Industrial Duct Construction Standards,” 3rd edition, now available

    The revised “Round Industrial Duct Construction Standards,” 3rd edition, 2013, an American National Standard, ANSI/SMACNA 005-2013, is now available. SMACNA members will receive an email shortly with instructions on how to receive their gratis copy.

    More

  • Technical Paper 2017 Update for Architectural Fascia and Coping Wind Tests Report

    SMACNA’s Technical Resources Committee completed wind uplift testing on custom-fabricated fascia and coping architectural elements constructed in accordance with the SMACNA Architectural Sheet Metal Manual.

    More

  • News SMACNA introduces first ‘Phenolic Duct Construction Standard’

    SMACNA’s first edition of the “Phenolic Duct Construction Standard” provides basic phenolic duct fabrication and installation standards that sheet metal contractors, code officials and design engineers will find useful. It is a new American National Standard.

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  • News Introducing SMACNA’s Round Industrial Duct Construction App

    Round industrial duct construction calculations just got a whole lot easier for SMACNA members.

    More

  • News Introducing SMACNA’s Round Industrial Duct Construction App

    Now there’s an app for SMACNA’s “Round Industrial Duct Construction Standard” (RIDCS). This powerful app, available today, is actually Web-based. Best of all it is free to SMACNA members. Click here to access the App. Scroll to “SMACNA’s Round Duct Construction App.” Login to your member’s only account and you will automatically arrive on the App landing page.

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  • News Members receive latest edition, free − SMACNA “Energy Systems Analysis and Management Manual” available

    With the long-term rising cost of fossil fuels, reducing the energy consumption of HVAC systems is increasingly important.

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  • News SMACNA’s Technical University−Sharing the ‘ins and outs’ of duct construction

    TU-DSC00584-200Approximately 50 participants from SMACNA member contractors learned about SMACNA’s most prominent standards at SMACNA’s Technical University in Milwaukee, Wis., on Sept. 15 and 16.

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  • Technical Paper Custom Fabricated Sheet Metal Test Report

    Achieving uniqueness in building construction should start at the top. When choosing a roofing style, many architects choose custom fabricated metal roofs. SMACNA's Custom Fabricated Sheet Metal Roof Test Report describes the performance of the double lock standing seam and batten seam metal roof conforming to the SMACNA Architectural Sheet Metal Manual.

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  • Webinars NEMI presents: HVAC Fire Life Safety Certification webinar

    SMACNA and the National Energy Management Institute (NEMI) are presenting a webinar on the NEMI HVAC Fire Life Safety certifications exclusively for SMACNA members only on Jan. 26 at 11:00 a.m. (EST).

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  • Webinars HVAC Duct Construction Standards 103 - Round and Oval Duct, Hangers, and Casing Construction

    Event Objectives Gain solid understanding of how to construct duct in a resource efficient and sustainable manner that is compliant with SMACNA’s HVAC Duct Construction Standard. This is the final session in a three part series.

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  • Webinars HVAC Duct Construction Standards 102 - Rectangular Duct Tie Rods, New Tables (TDC/TDF), and Rectangular Duct Over 120'

    Event Objectives Gain solid understanding of how to construct duct in a resource efficient and sustainable manner that is compliant with SMACNA’s HVAC Duct Construction Standard. This is the second session in a three part series.

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  • Webinars HVAC Duct Construction Standards 101 - Rectangular Duct External Reinforcement

    This presentation will cover the following (with respect to rectangular duct): - Basic definitions used to properly describe rectangular duct - Limits and proper application of various joints and seams - Use of the manual to determine proper construction options - and more

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  • Webinars SMACNA Fire, Smoke & Radiation Damper

    Session highlights the considerations in specifying and installing fire dampers, smoke dampers, combination fire and smoke dampers and ceiling dampers in HVAC systems.

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  • Webinars SMACNA Seismic Restraint Manual - Webinar

    Session highlights the SMACNA Seismic Restraint Manual – Guidelines For Mechanical Systems 3rd Edition (ANSI) means and methods for seismically bracing ducts and pipes to meet the requirements of the regionally appropriate seismic hazard levels so that ducts/pipes are more likely to maintain their integrity and remain attached to the building’s structure during a seismic event.

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  • Webinars 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.

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  • Webinars HVAC Duct Construction Standards

    This webinar will demonstrate how to use SMACNA's Third Edition of the HVAC Duct Construction Standards to determine the proper range of construction options of rectangular duct used in today's commercial market.

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  • Technical Paper SMACNA Master Index of Technical Publications

    The Master Index provides contractors, design professionals, and code officials with a centralized resource of SMACNA technical documents. The index includes key words or phrases from all SMACNA technical standards, manuals and guides.

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  • Technical Paper SMACNA CAD Standard

    As an organization with contributing members on the National CAD Standard (NCS) Committee, SMACNA is committed to improving electronic communication between members of the architect/engineer/contractor (AEC) community, and the overall quality of construction.

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  • Technical Paper Improper Fire Damper Installation

    SMACNA is being increasingly advised that contractors are being required to provide elements of fire damper and combination fire/smoke damper installations which are both unnecessary and not allowed. Specifically we refer to requirements to seal the retaining angles to the wall/floor fire rated assembly and to other directives to fill the expansion space with materials such as mineral wool, ceramic fiber or firestopping caulks.

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  • Technical Paper ERRATA, Guide for Steel Stack Construction, 2nd Edition 1996

    This technical paper contains ERRATA for the Guide for Steel Stack Construction, Second Edition 1996. Please download and include this listing of changes/corrections with your copy of the manual and reference it as needed.

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  • Technical Paper Building Code Update

    This technical paper reviews the Model Building Code process of the International Code Council (ICC) and National Fire Protection Association (NFPA) Building 5000 Code and addresses SMACNA National's position with regards to the efforts of the code community to develop a single set of comprehensive and coordinated national codes.

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