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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.

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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 55 and User's Manual

Pursuing Thermal Comfort: Ensure Standard 55 Compliance with Latest User's Manual

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Standard 55 -- Thermal Environmental Conditions for Human Occupancy

Standard 55 specifies conditions for acceptable thermal environments and is intended for use in design, operation, and commissioning of buildings and other occupied spaces.

$95 (Members $81) / 54 pages / 2013

Also Available:

Standard 55 User's Manual

This companion guide provides detailed information on the requirements of Standard 55-2013, and includes tables, illustrations, and examples to aid users in the design, commissioning, and measuring and rating of thermal comfort in buildings.

Also included is an exclusive link to the web-based CBE/ASHRAE Thermal Comfort Tool, developed by the Center for the Built Environment at the University of California Berkeley.

$115 (Members $99) / 166 pages / 2016

For thermal comfort—this is the standard.

ANSI/ASHRAE Standard 55-2013 defines the range of indoor thermal environmental conditions acceptable to a majority of occupants, but accommodates an ever increasing variety of design solutions intended both to provide comfort and to respect today's imperative for sustainable buildings.

Since 2010, Standard 55 has been rewritten with a renewed focus on application of the standard by practitioners and use of clear, enforceable language. Requirements are now clearly stated and calculation procedures appear sequentially.

New for 2013:

  • An allowance for the cooling effect of air movement as a way to extend the upper limit of the comfort zone in naturally conditioned spaces
  • The addition of a predictive model for occupant clothing behavior based on extensive field research
  • Major revisions to Section 7 procedures for measuring comfort in existing spaces.

Documentation requirements to show that a design complies with Standard 55 are contained in Section 6, and a sample compliance form is provided in Appendix J. Both of these sections are clarified and streamlined for use by owners and third-party rating systems.

ASHRAE Thermal Comfort Tool Version 2

94031100px.jpgThis software provides a user-friendly interface for calculating thermal comfort parameters and making predictions using several existing thermal comfort models. This new version focuses on the Adaptive and Predicted Mean Vote (PMV) Models and has an updated user interface. Learn more