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
| Nov 13, 2012
Sto Corp. announces appointment of new CMO
Bottema will be responsible for all corporate marketing, product management and sales activities.
| Nov 13, 2012
2012 LEED for Homes Award recipients announced
USGBC recognizes excellence in the green residential building community at its Greenbuild Conference & Expo in San Francisco
| Nov 12, 2012
PCI Skanska celebrates 40-year anniversary
Since its creation, PCI Skanska has provided EPC services to clients for more than 40 years.
| Nov 12, 2012
AISC launches 'Night School' online educational program
The program's weekly webinar sessions offer structural engineers a great opportunity to enhance their professional development online while accommodating their schedules.
| Nov 11, 2012
Under40 Leadership Summit draws 71 young leaders to Chicago
More than 70 young—that is, under age 40—architects, engineers, and construction professionals descended on Chicago in early October with one thought in mind: to learn how to “create with clarity.”
| Nov 11, 2012
AIA: Building Envelope
Preventing and treating failure in glazed curtain wall systems. Earn 1.0 AIA/CES learning units by studying this article and successfully completing the online exam.
| Nov 11, 2012
Greenbuild 2012 Report: Hospitality
Hotel boom signals good news for greener lodging facilities
| Nov 11, 2012
Greenbuild 2012 Report: Government & Military
Public sector remains a bastion of sustainability
| Nov 11, 2012
Greenbuild 2012 Report: Healthcare
Green medical facilities extend beyond hospital walls
| Nov 11, 2012
Greenbuild 2012 Report: Multifamily
Sustainably designed apartments are apples of developers’ eyes