The American Society of Heating, Refrigerating, & Air Conditioning Engineers (ASHRAE) publishes a well-recognized series of standards and guidelines relating to HVAC systems and issues. Often referenced in building codes, these standards are useful to consulting engineers, mechanical contractors, architects, and government agencies.
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. It provides the minimum requirements for energy-efficient design of most buildings, except low-rise residential buildings. Requirements are grouped into the following sections:
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