The 2016 version of ANSI/ASHRAE/IES Standard 90.1, the Energy Standard for Buildings Except Low-Rise Residential Buildings, was recently released.
The update includes a new compliance path and significant technical changes affecting building envelope, and mechanical and lighting systems. The document contains 121 new addenda since publication of the previous version: the 2013 standard.
The 2016 edition contains a new compliance path, the Performance Rating Method, which is included in Appendix G. The provision was previously used only to rate “beyond code” performance of buildings; it now serves as an alternative to the traditional performance path.
Among the most significant technical changes are:
Envelope:
• Mandatory requirements for envelope verification, supporting reduced air infiltration, and increased requirements for air leakage to overhead coiling doors.
• More stringent prescriptive requirements for metal building roofs and walls, fenestration, and opaque doors.
• Improved clarity of exterior walls definitions, building orientation, and clarity around the effective R-value of air spaces.
• New requirements based on the addition of climate zone 0.
Lighting:
• Modified control requirements to simplify advanced lighting control applications.
• New exterior and interior lighting power densities based on LED technology.
• Requirements for dwelling units to set limits on light source efficacy.
• Additional controls for lighting in parking areas.
Mechanical:
• Chilled water plant metering, requiring large electric driven chilled water plants to be monitored for electric energy use and efficiency.
• DOAS requirements, adding efficiency and rating requirements for dedicated outside air systems.
• Elevator efficiency, introducing requirements for identifying usage category and efficiency class.
• Economizer fault detection and diagnostics, implementing monitoring system requirements for air-cooled DX cooling units with economizers, helping to ensure that equipment is working properly.
• New requirements for replacement equipment, such as adding economizers or fan speed control, which previously only applied to new installations.
More information on code adoption and related technical assistance is available at energycodes.gov.
Related Stories
Codes and Standards | Jun 2, 2022
New design guide for hybrid steel-mass timber frames released
The American Institute of Steel Construction (AISC) has released the first-ever set of U.S. recommendations for hybrid steel frames with mass timber floors, according to a news release.
Mass Timber | Jun 2, 2022
Brooklyn is home to New York City’s first mass timber condo building
In the Brooklyn neighborhood of Park Slope, the newly completed Timber House is New York City’s first mass timber condominium building and its largest mass timber project (by height and square footage).
Codes and Standards | Jun 1, 2022
HKS, U. of Texas Dallas partner on brain health study
HKS and The University of Texas at Dallas’ Center for BrainHealth are conducting a six-month study to improve the way the firm’s employees work, collaborate, and innovate, both individually and as an organization, according to a news release.
Building Team | Jun 1, 2022
Pennsylvania’s Longwood Gardens to get a $250 million transformation
Longwood Gardens, a botanical garden with about 1,100 acres in Pennsylvania’s Brandywine Valley, recently announced plans to transform its core area of conservatory gardens.
Mass Timber | May 31, 2022
Tall mass timber buildings number 139 worldwide
An audit of tall mass timber buildings turned up 139 such structures around the world either complete, under construction, or proposed.
Hotel Facilities | May 31, 2022
Checking out: Tips for converting hotels to housing
Many building owners are considering repositioning their hotels into another property type, such as senior living communities and rental apartments. Here's advice for getting started.
Museums | May 31, 2022
University of Texas at Dallas breaks ground on new 12-acre cultural district
The University of Texas at Dallas (UT Dallas) recently broke ground on the Crow Museum of Asian Art, the first phase of a new 12-acre cultural district on campus.
BAS and Security | May 26, 2022
Can your intelligent building outsmart hackers?
ESD's security services studio leader Coleman Wolf offers tips, advice, and lessons for protecting real estate assets from cyberattacks.
Sports and Recreational Facilities | May 26, 2022
WNBA practice facility will offer training opportunities for female athletes and youth
The Seattle Storm’s Center for Basketball Performance will feature amenities for community youth, including basketball courts, a nutrition center, and strength and conditioning training spaces.
Engineers | May 25, 2022
Epstein: The next 100 years
Multidisciplinary design and construction firm Epstein turned 100 in 2021. Two of its Directors discuss the firm's future, and what other AEC firms can learn from Epstein's experience. Darrin McCormies, Director of Industrial Services, and Ed Curley, AIA, Director of Architecture + Interiors, talk with BD+C's Rob Cassidy.