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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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Develop Leadership Skills

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.

Network with Industry Professionals

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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Standards, Research & Technology

Interpretations for Standard 55-2004

NOTE: All documents linked from this page are in PDF PDF-format.

Interpretation 55-2004-1 (June 25, 2005) (Refers to the requirements in ANSI/ASHRAE Standard 55-2004, Sections and 5.2.2, and Figure relating to the acceptable range of operative temperature and humidity.)

Interpretation 55-2004-2 (January 27, 2007) (Refers to the requirements in ANSI/ASHRAE Standard 55-2004, Section, Table and Figure relating to the allowable radiant temperature asymmetry.)

Interpretation 55-2004-3 (November 26, 2010) (Refers to the requirements in ANSI/ASHRAE Standard 55-2004, Section 5.2.2, relating to a lower humidity limit for thermal comfort.)