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
Affordable Housing | Mar 11, 2024
Los Angeles’s streamlined approval policies leading to boom in affordable housing plans
Since December 2022, Los Angeles’s planning department has received plans for more than 13,770 affordable units. The number of units put in the approval pipeline in roughly one year is just below the total number of affordable units approved in Los Angeles in 2020, 2021, and 2022 combined.
BIM and Information Technology | Mar 11, 2024
BIM at LOD400: Why Level of Development 400 matters for design and virtual construction
As construction projects grow more complex, producing a building information model at Level of Development 400 (LOD400) can accelerate schedules, increase savings, and reduce risk, writes Stephen E. Blumenbaum, PE, SE, Walter P Moore's Director of Construction Engineering.
AEC Tech | Mar 9, 2024
9 steps for implementing digital transformation in your AEC business
Regardless of a businesses size and type, digital solutions like workflow automation software, AI-based analytics, and integrations can significantly enhance efficiency, productivity, and competitiveness.
Sports and Recreational Facilities | Mar 7, 2024
Bjarke Ingels’ design for the Oakland A’s new Las Vegas ballpark resembles ‘a spherical armadillo’
Designed by Bjarke Ingels Group (BIG) in collaboration with HNTB, the new ballpark for the Oakland Athletics Major League Baseball team will be located on the Las Vegas Strip and offer panoramic views of the city skyline. The 33,000-capacity covered, climate-controlled stadium will sit on nine acres on Las Vegas Boulevard.
Adaptive Reuse | Mar 7, 2024
3 key considerations when converting a warehouse to a laboratory
Does your warehouse facility fit the profile for a successful laboratory conversion that can demand higher rents and lower vacancy rates? Here are three important considerations to factor before proceeding.
Shopping Centers | Mar 7, 2024
How shopping centers can foster strong community connections
In today's retail landscape, shopping centers are evolving beyond mere shopping destinations to become vibrant hubs of community life. Here are three strategies from Nadel Architecture + Planning for creating strong local connections.
Market Data | Mar 6, 2024
Nonresidential construction spending slips 0.4% in January
National nonresidential construction spending decreased 0.4% in January, according to an Associated Builders and Contractors analysis of data published today by the U.S. Census Bureau. On a seasonally adjusted annualized basis, nonresidential spending totaled $1.190 trillion.
MFPRO+ Research | Mar 6, 2024
Top 10 trends in senior living facilities for 2024
The 65-and-over population is growing faster than any other age group. Architects, engineers, and contractors are coming up with creative senior housing solutions to better serve this burgeoning cohort.
Office Buildings | Mar 5, 2024
Former McDonald’s headquarters transformed into modern office building for Ace Hardware
In Oak Brook, Ill., about 15 miles west of downtown Chicago, McDonald’s former corporate headquarters has been transformed into a modern office building for its new tenant, Ace Hardware. Now for the first time, Ace Hardware can bring 1,700 employees from three facilities under one roof.
Green | Mar 5, 2024
New York City’s Green Economy Action Plan aims for building decarbonization
New York City’s recently revealed Green Economy Action Plan includes the goals of the decarbonization of buildings and developing a renewable energy system. The ambitious plan includes enabling low-carbon alternatives in the transportation sector and boosting green industries, aiming to create more than 12,000 green economy apprenticeships by 2040.
