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
| Aug 11, 2010
10 tips for mitigating influenza in buildings
Adopting simple, common-sense measures and proper maintenance protocols can help mitigate the spread of influenza in buildings. In addition, there are system upgrades that can be performed to further mitigate risks. Trane Commercial Systems offers 10 tips to consider during the cold and flu season.
| Aug 11, 2010
Reed Construction Data files corporate espionage lawsuit against McGraw-Hill Construction Dodge
Reed Construction Data (RCD), a leading construction information provider and a wholly-owned subsidiary of Reed Elsevier (NYSE:RUK, NYSE:ENL), today filed suit in federal court against McGraw-Hill Construction Dodge, a unit of The McGraw-Hill Companies, Inc. (NYSE:MHP). The suit charges that Dodge has unlawfully accessed confidential and trade secret information from RCD since 2002 by using a series of fake companies to pose as RCD customers.
| Aug 11, 2010
NAVFAC releases guidelines for sustainable reconstruction of Navy facilities
The guidelines provide specific guidance for installation commanders, assessment teams, estimators, programmers and building designers for identifying the sustainable opportunities, synergies, strategies, features and benefits for improving installations following a disaster instead of simply repairing or replacing them as they were prior to the disaster.
| Aug 11, 2010
Construction employment shrinks in 319 of the nation's 336 largest metro areas in July, continuing months-long slide
Construction workers in communities across the country continued to suffer extreme job losses this July according to a new analysis of metropolitan area employment data from the Bureau of Labor Statistics released today by the Associated General Contractors of America. That analysis found construction employment declined in 319 of the nation’s largest communities while only 11 areas saw increases and six saw no change in construction employment between July 2008 and July 2009.
| Aug 11, 2010
Green consultant guarantees LEED certification or your money back
With cities mandating LEED (Leadership in Energy and Environmental Design) certification for public, and even private, buildings in growing numbers, an Atlanta-based sustainability consulting firm is hoping to ease anxieties over meeting those goals with the industry’s first Green Guaranteed.