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 | Mar 22, 2021
Think tank offers plan for new approach to reduce neighborhood poverty
Strategy uses more targeted approach to invest in low-income areas.
Codes and Standards | Mar 19, 2021
California city bans construction of new gas stations
Existing stations will not be allowed to add more pumps.
Codes and Standards | Mar 18, 2021
Congressmen ask Biden to tackle rising lumber costs
Rising materials costs and supply shortages threaten economic recovery, housing starts.
Codes and Standards | Mar 16, 2021
Massachusetts bill would mandate rooftop solar on new homes, commercial buildings
Proposed Bay State mandate modeled on California’s.
Codes and Standards | Mar 15, 2021
Nevada may create areas for tech companies to form own governments
Legislation calls for ‘Innovation Zones’ that could become smart cities.
Codes and Standards | Mar 11, 2021
Los Angeles commits to carbon-free city buildings
City will take into account embedded carbon when contracting to buy construction products.
Codes and Standards | Mar 10, 2021
‘Smart retrofitting’ will be crucial to net zero aspirations
AI, analytical software, Internet of Things are keys to decarbonization of built environment.
Codes and Standards | Mar 9, 2021
Salt Lake City is first jurisdiction to adopt new standards for off-site construction
Code Council and Modular Building Institute developing standards and compliance protocols.
Codes and Standards | Mar 8, 2021
Hyperlocal zoning could spur more affordable housing construction
Letting blocks and streets pass their own rules could have impact.
Codes and Standards | Mar 5, 2021
Biden builds on Trump’s “Buy American” order
New administration extends preferences for domestic construction materials.