ASHRAE has released an expanded, revised version of ANSI/ASHRAE/IES Standard 90.1-2019, Energy Efficiency Standard for Buildings Except Low-Rise Residential Buildings.
It contains more than 100 changes from the 2016 version, including numerous energy-saving measures. The new version “focuses on energy-saving measures which we hope will reward designs for achieving energy cost levels above the standard minimum and result in more efficient buildings and more innovative solutions,” says Drake Erbe, chair of the Standard 90.1 committee, in an ASHRAE news release.
Notable changes include:
— Commissioning requirements were added for the first time.
— Minimum criteria for SHGC and U-factor were upgraded across all climate zones.
— Lighting power allowances for the Space-by-Space Method and the Building Area Method were modified to make them more representative of real-world conditions.
— An option to use ASHRAE Standard 90.4 instead of ASHRAE/IES Standard 90.1 requirements in computer rooms that have an IT equipment load larger than 10 kW was added.
— Clearer and more specific rules were added related to how renewables are treated. A new fan energy index (FEI) as the metric for efficiency provisions for commercial and industrial fans and blowers was added.
Related Stories
Codes and Standards | May 26, 2020
Is CLT really a green solution?
Sustainability depends upon forest stewardship, product manufacturing process.
Codes and Standards | May 20, 2020
St. Louis is first Midwest city to pass building energy performance standard
Allows owners broad flexibility on how to achieve goals.
Codes and Standards | May 20, 2020
Supreme Court says Georgia cannot copyright its entire official code
Ruling may have implications for other states claiming copyright for building codes.
Codes and Standards | May 18, 2020
Strategies to reduce personal contact in multifamily properties
Design can improve health amid COVID-19 pandemic.
Codes and Standards | May 18, 2020
Canada Green Building Council says building industry lacks zero-carbon skills, knowledge
Net-zero target requires shift in thinking and practices.
Codes and Standards | May 18, 2020
California’s grid can support all-electric buildings
Load-shifting will help reduce peak demand.
Codes and Standards | May 15, 2020
European cities to revamp transportation after pandemic reopening
Road closures, new rules for public transit will be imposed.
Codes and Standards | May 14, 2020
Washington State construction industry restart plan has three phases
In state with earliest COVID-19 cases, advisory group developing priorities based on risk.
Codes and Standards | May 14, 2020
More mass timber beam and column options available in the U.S.
Freres Lumber unveils new line of structural elements suitable for high-rise buildings.
Codes and Standards | May 13, 2020
Researchers flag insufficient training for construction workers on healthcare projects
May contribute to fungal disease outbreaks that endanger patients