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 | Nov 21, 2023
Austin becomes largest U.S. city to waive minimum parking requirements
Austin, Texas recently became the largest city in the United States to stop requiring new developments to set a minimum amount of parking. The Austin City Council voted 8-2 earlier this month to eliminate parking requirements in an effort to fight climate change and spur more housing construction as Texas’s capitol grapples with a housing affordability crisis.
MFPRO+ News | Nov 21, 2023
Underused strip malls offer great potential for conversions to residential use
Replacing moribund strip malls with multifamily housing could make a notable dent in the housing shortage and revitalize under-used properties across the country, according to a report from housing nonprofit Enterprise Community Partners.
Giants 400 | Nov 16, 2023
Top 80 Science + Technology Facility Construction Firms for 2023
DPR Construction, Austin Industries, Whiting-Turner, and Gilbane top BD+C's ranking of the nation's largest science and technology (S+T) facility general contractors and construction management (CM) firms for 2023, as reported in Building Design+Construction's 2023 Giants 400 Report. Note: This ranking factors revenue from all science and technology (S+T) buildings work, including laboratories, research buildings, technology/innovation buildings, pharmaceutical production facilities, and semiconductor production facilities.
Retail Centers | Nov 15, 2023
Should retail developers avoid high crime areas?
For retailers resolute to operating in high crime areas, design elements exist to mitigate losses and potentially deter criminal behavior.
Contractors | Nov 15, 2023
Clune Construction expands Southwest reach with launch of Phoenix office
Clune Construction (Clune) is pleased to announce its newest location in Phoenix, marking another milestone in their national growth. The official move comes after several years of sustained success in the Phoenix region.
MFPRO+ News | Nov 15, 2023
Average U.S multifamily rents drop $3 to $1,718 in October 2023: Yardi Matrix
Multifamily fundamentals continued to soften and impact rents last month, according to the latest Yardi Matrix National Multifamily Report. The average U.S. asking rent dropped $3 to $1,718 in October, with year-over-year growth moderating to 0.4%, down 40 basis points from September. Occupancy slid to 94.9%, marking the first decline in four months.
MFPRO+ Special Reports | Nov 14, 2023
Register today! Key trends in the multifamily housing market for 2024 - BD+C Live Webinar
Join the BD+C and Multifamily Pro+ editorial team for this live webinar on key trends and innovations in the $110 billion U.S. multifamily housing market. A trio of multifamily design and construction experts will present their latest projects, trends, innovations, and data/research on the three primary multifamily sub-sectors: rental housing, senior living, and student housing.
Giants 400 | Nov 14, 2023
Top 50 Justice Facility Construction Firms for 2023
Turner Construction, Whiting-Turner, STO Building Group, Clark Group, and CORE Construction top BD+C's ranking of the nation's largest justice facility general contractors and construction management (CM) firms for 2023, as reported in the 2023 Giants 400 Report. Note: This ranking includes revenue from all public safety/justice facilities buildings work, including correctional facilities, fire stations, jails, police stations, and prisons.
Market Data | Nov 14, 2023
The average U.S. contractor has 8.4 months worth of construction work in the pipeline, as of September 2023
Associated Builders and Contractors reported that its Construction Backlog Indicator declined to 8.4 months in October from 9.0 months in September, according to an ABC member survey conducted from Oct. 19 to Nov. 2. The reading is down 0.4 months from October 2022. Backlog now stands at its lowest level since the first quarter of 2022.
Giants 400 | Nov 13, 2023
Top 60 Airport Facility Construction Firms for 2023
Hensel Phelps, Turner Construction, AECOM, and Walsh Group top BD+C's ranking of the nation's largest airport terminal and airport facilities general contractors and construction management (CM) firms for 2023, as reported in the 2023 Giants 400 Report.
