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Energy Efficiency in Existing Buildings. Addendum b (2021). Original document ANSI ASHRAE IES Standard 100-2018 Addendum b (2021) in PDF full version. Additional info + preview on request

Document status: Replaced by St ANSI ASHRAE IES Standard 100-2024

Energy Efficiency in Existing Buildings. Addendum c (2022). Original document ANSI ASHRAE IES Standard 100-2018 Addendum c (2022) in PDF full version. Additional info + preview on request

Document status: Replaced by St ANSI ASHRAE IES Standard 100-2024

Energy Efficiency in Existing Buildings. Addendum f (2023). Original document ANSI ASHRAE IES Standard 100-2018 Addendum f (2023) in PDF full version. Additional info + preview on request

Document status: Replaced by St ANSI ASHRAE IES Standard 100-2024

Energy Efficiency in Existing Buildings. Addendum h (2022). Original document ANSI ASHRAE IES Standard 100-2018 Addendum h (2022) in PDF full version. Additional info + preview on request

Document status: Replaced by St ANSI ASHRAE IES Standard 100-2024

Energy and Emissions Building Performance Standard for Existing Buildings. Original standard ANSI ASHRAE IES Standard 100-2024 in PDF full version. Additional info + preview on request

Document status: Active

Energy and Emissions Building Performance Standard for Existing Buildings. Addendum c (2025). Original document ANSI ASHRAE IES Standard 100-2024 Addendum c (2025) in PDF full version. Additional info + preview on request

Document status: Active