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ASHRAE 90.1 (Energy Standard for Buildings Except Low-Rise Residential Buildings) is a US standard that provides minimum requirements for energy efficient designs for buildings except for low-rise residential buildings. The original standard, ASHRAE 90, was published in 1975. There have been multiple editions to it since. In 1999, the Board of Directors for ASHRAE voted to place the standard on continuous maintenance, based on rapid changes in energy technology and energy prices. This allows it to be updated multiple times in a year. The standard was renamed ASHRAE 90.1 in 2001.〔American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (2007). Ashrae standard 90.1. Atlanta, GA〕 It has since been updated in 2004, 2007, 2010, and 2013 to reflect newer and more efficient technologies.〔U.S. Department of Energy, Initials. (2004). Ansi/ashrae/iesna standard 90.1-2004u. Retrieved from http://www.energycodes.gov/training/pdfs/ashrae_90_1_2004.pdf〕 ==Structure and form== In general, there are two means, or ''paths'' for building designers to comply with ASHRAE 90.1: * Prescriptive path: All components of the building meet the minimum standards specified by ASHRAE 90.1. * Performance path: A ''proposed'' building design is demonstrated (through building energy simulation) to use less energy than a ''baseline'' building built to ASHRAE 90.1 specifications. Within the sections of the standard, there are some variations to this. Some sections have mandatory provisions, simplified approaches, or trade-off opportunities. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「ASHRAE 90.1」の詳細全文を読む スポンサード リンク
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