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
| May 31, 2012
AIA Course: High-Efficiency Plumbing Systems for Commercial and Institutional Buildings
Earn 1.0 AIA/CES learning units by studying this article and successfully completing the online exam.
| May 31, 2012
2011 Reconstruction Award Profile: Seegers Student Union at Muhlenberg College
Seegers Student Union at Muhlenberg College has been reconstructed to serve as the core of social life on campus.
| May 31, 2012
2011 Reconstruction Awards Profile: Ka Makani Community Center
An abandoned historic structure gains a new life as the focal point of a legendary military district in Hawaii.
| May 31, 2012
5 military construction trends
Defense spending may be down somewhat, but there’s still plenty of project dollars out there if you know where to look.
| May 31, 2012
New School’s University Center in NYC topped out
16-story will provide new focal point for campus.
| May 31, 2012
Day & Zimmermann taps Jobe for ECM VP
Ken Jobe, a senior executive with 30+ years of industry-related experience, joins Day & Zimmermann to expand footprint in the process & industrial markets.
| May 31, 2012
Perkins+Will-designed engineering building at University of Buffalo opens
Clad in glass and copper-colored panels, the three-story building thrusts outward from the core of the campus to establish a new identity for the School of Engineering and Applied Sciences and the campus at large.
| May 30, 2012
Construction milestone reached for $1B expansion of San Diego International Airport
Components of the $9-million structural concrete construction phase included a 700-foot-long, below-grade baggage-handling tunnel; metal decks covered in poured-in-place concrete; slab-on-grade for the new terminal; and 10 exterior architectural columns––each 56-feet tall and erected at a 14-degree angle.
| May 30, 2012
Pringle Brandon in discussions to join forces with Perkins+Will
The London offices would be known as Pringle Brandon Perkins+Will.