Load Calculation Data and Procedures
ASHRAE Technical Committee 4.1

Upcoming TC Meetings

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Location: Room:
Sunday June 25, 2023  
2:00 PM - 5:00 PM - Research, Program, Handbook, Standards (Hybrid) JW Marriott Tampa, MacDill (2)
(see Conference meeting schedule for virtual link)  
Monday, June 26, 2023  
2:15 PM - 4:15 PM  - Full Committee (Hybrid) JW Marriott Tampa, Kennedy (3)
(see Conference meeting schedule for virtual link)  

Committee Chair

Mr Rolando Legarreta, PE

Committee Scope

TC 4.1 is concerned with the identification and compilation of engineering data and the development of procedures for calculating heating, cooling, refrigeration and ventilating loads of structures.


Upcoming Society Conferences

ASHRAE 2023 Annual Conference
June 24-28, 2023
Tampa, FL

Additional Information

Committee Structure.  TC 4.1 is comprised of the full committee and four subcommittees:

  • Handbook - Writes and maintains the load estimating chapters in the ASHRAE Handbook - Fundamentals.
  • Research - Manages research projects related to load estimating.
  • Program - Develops and sponsors symposia, seminars and forums at ASHRAE semi-annual meetings.
  • Standards - Develops and maintains standards related to load estimating.

Subcommittee meetings are held Sunday afternoon during the semi-annual meetings.   Much of the discussion occurs at the subcommittee meetings.   Prospective members are encouraged to attend the subcommittee meetings as well as the full committee meeting.