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ASHRAE Membership

ASHRAE membership is open to any person associated with heating, ventilation, air conditioning or refrigeration. ASHRAE is unique because its membership is drawn from a wide range of disciplines relating to the HVAC&R field. Over 55,000 individuals from more than 100 nations belong to the Society.

Discounts on Publications

ASHRAE members earn 15% off publications. Hundreds of titles are available including the complete collection of ASHRAE Standards including 90.1, 62.1 and 189.1.
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When you join ASHRAE, you are making an investment in yourself. When you become active in the Society by giving your time and sharing your knowledge, you get even more out of that investment.

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Each month, all over the world, ASHRAE chapters convene for an informational program featuring a speaker or topic that is key to professionals in the industry. Meet with your peers and share ideas.
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Resources & Publications

Standard 90.1

ANSI/ASHRAE/IES Standard 90.1-2013 -- Energy Standard for Buildings Except Low-Rise Residential Buildings


Standard 90.1 has been a benchmark for commercial building energy codes in the United States and a key basis for codes and standards around the world for more than 35 years.

Priced from $135 (Members $115) / 174 pages / 2013
Looking for SI Edition?

Also Available:

More Ways to Buy:

ASHRAE now offers publications in multiple formats so you can select the option that's best for you.

Printed Edition + PDF bundle—Purchase Standard 90.1-2013 in print format and get electronic online access in PDF format, in addition to your print copy, for one low price.

Multi-user PDF
—Purchase access to Standard 90.1-2013 for use in your company for a finite set of specific users.

Redlines—Identify changes made during the revision process between the current standard and its previous edition. Purchasers who select the redline upgrade receive both the current standard and the redline in print or digital format.

Digital Collections—Need company-wide access? Digital Collections provide web-based, enterprise access to ASHRAE and other-industry publications for your information needs.


Superseded Editions of 90.1

861474_300px.jpgLooking for previous revisions?

ASHRAE offers superseded editions of Standard 90.1 and User's Manuals in the ASHRAE Bookstore. Find previous editions in the 'Document History' section of the 90.1-2013 product page. Browse Now

About Standard 90.1

This standard provides the minimum requirements for energy-efficient design of most buildings, except low-rise residential buildings. It offers, in detail, the minimum energy-efficient requirements for design and construction of new buildings and their systems, new portions of buildings and their systems, and new systems and equipment in existing buildings, as well as criteria for determining compliance with these requirements. It is an indispensable reference for engineers and other professionals involved in design of buildings and building systems.

90.1 Training
Preview 90.1-2013

This 2013 edition has been expanded to include new features and more detailed requirements, as well as incorporating changes from more than 100 addenda.

New for 2013:

  • Revised, stricter opaque element and fenestration requirements at a reasonable level of cost-effectiveness

  • Improvements to daylighting controls, space-by-space lighting power density limits, and thresholds for toplighting

  • Revised equipment efficiencies for heat pumps, packaged terminal air conditioners (PTACs), single package vertical heat pumps and air conditioners (SPVHP and SPVAC), and evaporative condensers

  • New provisions for commercial refrigeration equipment and improved controls for heat rejection and boiler equipment

  • Improved requirements for expanded use of energy recovery, small-motor efficiencies, and fan power control and credits

  • Improved equipment efficiencies for chillers

  • Clarifications for the use of prescriptive provisions when performing building energy use modeling, and revisions to enhance capturing daylighting when performing modeling calculations

  • A new alternate compliance path to Section 6, "Heating, Ventilating, and Air-Conditioning," for computer room systems, developed with ASHRAE Technical Committee (TC) 9.9.

In addition to offering immediate access to the content, the PDF download of this standard presents selected graphics in color for enhanced readability.


Other Available Resources

90321_300px90.1-2013 User's Manual

This User's Manual provides detailed instruction for the design of commercial and high-rise residential buildings to ensure their compliance with ANSI/ASHRAE/IES Standard 90.1-2013. It includes measurements and calculations in both I-P and SI units, sample calculations, application examples, forms to demonstrate compliance, and references to helpful resources and websites.



ICC -- Significant Changes to the International Energy Conservation Code and ANSI/ASHRAE/IES Standard 90.1-2010

Gain access to the most critical updates, the real-world application of those changes, and why they originated. Each change analysis features the affected code and Standard sections and identifies the change as added text, a modification of the existing language, or deleted text. Detailed illustrations and examples accompany each change.


90.1 ECB App

A tool for modeling compliance with ASHRAE Standard 90.1-2010

What This Tool Can Do for You:

A free web application from ASHRAE automates the calculations needed to show a building project’s compliance with ASHRAE/IES Standard 90.1-2010 using the Energy Cost Budget (ECB) Method described in the standard. The calculations are based on the ECB Method Compliance Forms found in the 90.1-2010 User's Manual.

Input your project parameters and then calculate your proposed design’s projected performance and compliance—no need to build your own spreadsheet. Output your results in Microsoft® Excel® for your clients and project records.

The app is accessible from your desktop, tablet, or other device anywhere. Set up an account  and store your project information in one place for easy reference and comparison.

Visit 901ECB.ashrae.org to register and get started.