ANSI/ASHRAE/IES Standard 100-201 5

ANSI/ASHRAE/IES Standard 1 00-201 5

Energy Efficiency in
Existing Buildings

The 2015 edition of Standard 100 provides comprehensive and detailed descriptions of the processes and procedures for the retrofit of existing residential and commercial buildings in order to achieve greater measure

2. SCOPE
This standard applies to existing buildings, portions of buildings,
and building complexes, including the envelope and all
systems in the building. This standard excludes industrial and
agricultural processes in buildings for which the energy targets
do not include those processes.

ed energy efficiency. Included in the revised standards are criteria for energy use surveys and auditing and requirements related to implementation and verification. Appendices are included for life-cycle cost analysis procedures as well as identification of potential energy conservation measures.

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ANSI/ASHRAE/IES Standard 1 00-201 5

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