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About This Item


Full Description

(Supersedes 105-1984)

This standard is intended to foster a commonality in reporting the energy performance of existing or proposed buildings to facilitate comparison, design and operation improvements, and development of building energy performance standards. It provides a consistent method of measuring, expressing, and comparing the energy performance of buildings. This revision of ANSI/ASHRAE Standard 105-1984 provides a method of energy performance comparison that can be used for any building, proposed or existing, and that allows different methods of energy analysis to be compared. Historically Standard 105 has provided a basis for reporting energy use, with only limited ability to express or compare building energy performance. This version of Standard 105 extends the reach considerably and is intended to provide a common basis for reporting building energy use, expressions of energy performance, and comparisons of energy performance.

This standard is a zipped file. It includes the standard as a pdf and the four (4) forms for use with the standard in Word, so users can enter information into them.

Units: Dual



Document History

  1. ASHRAE 105-2014

    Expressing, and Comparing Building Energy Performance and Greenhouse Gas Emissions (ANSI Approved)

    • Most Recent
  2. ASHRAE 105-2007


    Expressing, and Comparing Building Energy Performance (ANSI Appproved)

    • Historical Version
  3. ASHRAE 105-1984 (RA 99)

    Standard 105-1984 (RA 99) -- Standard Methods of Measuring and Expressing Building Energy Performance (ANSI approved)

    • Historical Version

Amendments, rulings, supplements, and errata

  1. ASHRAE 105-2007 Addenda a and b


    Addenda a and b Standard 105-2007 - Standard Methods of Measuring, Expressing, and Comparing Building Energy Performance (ANSI Appproved)