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
Building Team | Jun 13, 2016
BD+C launches Women in Design+Construction Conference
Inaugural 2.5-day event will convene 125+ leading AEC women in Dana Point, Calif., November 9-11, for professional development, networking, and career training.
Market Data | Jun 7, 2016
Global construction disputes took longer to resolve in 2015
The good news: the length and value of disputes in the U.S. fell last year, according to latest Arcadis report.
Market Data | Jun 3, 2016
JLL report: Retail renovation drives construction growth in 2016
Retail construction projects were up nearly 25% year-over-year, and the industrial and office construction sectors fared well, too. Economic uncertainty looms over everything, however.
Market Data | Jun 2, 2016
ABC: Nonresidential construction spending down in April
Lower building material prices, a sluggish U.S. economy, and hesitation among private developers all factor into the 2.1% drop.
Airports | Jun 1, 2016
LaGuardia Airport’s massive redevelopment begins construction
The development consortium has secured financing for the $4 billion project, and signed an operating lease through 2050.
Building Team Awards | Jun 1, 2016
Multifamily tower and office building revitalize Philadelphia cathedral
The Philadelphia Episcopal Cathedral capitalizes on hot property to help fund much needed upgrades and programs.
Building Team Awards | Jun 1, 2016
Central utility power plant takes center stage at UC San Diego Jacobs Medical Center
An undulating roof, floor-to-ceiling glass, and façade scheme give visual appeal to a plant that serves the 10-story medical center.
Building Team Awards | May 31, 2016
Gonzaga's new student center is a bustling social hub
Retail mall features, comfortable furniture, and floor-to-ceiling glass add vibrancy to the new John J. Hemmingson Center.
Building Team Awards | May 27, 2016
Big police academy trains thousands of New York's finest
The Police Training Academy in Queens, N.Y., consists of a 480,000-sf academic/administration building and a 240,000-sf physical training facility, linked by an aerial pedestrian bridge.
Building Team Awards | May 26, 2016
Cimpress office complex built during historically brutal Massachusetts winter
Lean construction techniques were used to build 275 Wyman Street during a winter that brought more than 100 inches of snow to suburban Boston.