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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 56,000 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.

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.
Need technical info? Search ASHRAE's Bookstore >
Education & Certification

ASHRAE Instructors

David Altenhofen, AIA

David Altenhofen is the East Coast Director for The Facade Group LLC, a consulting firm specializing in assisting owners, architects and builders in the delivery of durable and highly performing building enclosures. His focus is the application of practical field experience and building science combined with multiple forms of digital modeling to ensure that performance goals set during design are delivered in the constructed building. At The Facade Group Mr. Altenhofen has lead building enclosure commissioning efforts on three net zero projects and provided consulting services for many projects with an emphasis on energy savings.

Mr. Altenhofen is active in the architectural community at several levels, focusing primarily on reinforcing the architect’s role in building science and tectonic integrated design. Currently he sits on the national boards of the Air Barrier Association of America (ABAA) and Building Enclosure Commissioning Collaborative (BECxC). He helped form the national AIA/NIBS Building Enclosure Council initiative, a local multi-disciplinary groups across the country to promote knowledge and discussion regarding the science and art of constructing building skins and served as the Co-Chair of the National BEC Committee for many years. Mr. Altenhofen also was a member of the National AIA Advisory Board for the 11th Edition of Architectural Graphic Standards and was Subject Editor for the chapter on superstructure and enclosure. He chaired many national AIA committees related to building enclosures and is a founding member of the Technical Design for Building Performance Advisory Group. Mr. Altenhofen is widely published and lectures frequently at local, national and international events.


Course Taught