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
| Jul 27, 2014
Top Data Center Construction Firms [2014 Giants 300 Report]
Holder, Turner, and DPR head Building Design+Construction's 2014 ranking of the largest data center contractors and construction management firms in the U.S.
| Jul 27, 2014
Top Data Center Engineering Firms [2014 Giants 300 Report]
Fluor, Jacobs, and Syska Hennessy top Building Design+Construction's 2014 ranking of the largest data center engineering and engineering/architecture firms in the U.S.
| Jul 27, 2014
Top Data Center Architecture Firms [2014 Giants 300 Report]
Gensler, Corgan, and HDR head Building Design+Construction's 2014 ranking of the largest data center architecture and architecture/engineering firms in the U.S.
| Jul 25, 2014
Grocery stores choosing Green Globes for building sustainability certification
The Green Building Initiative (GBI) has announced a wave of Green Globes certifications for new grocery stores, including New Seasons Markets, Whole Foods, Price Chopper, Aldi’s, Harris Teeter, Wegmans, and Publix.
| Jul 24, 2014
MIT researchers explore how to make wood composite-like blocks of bamboo
The concept behind the research is to slice the stalk of bamboo grass into smaller pieces to bond together and form sturdy blocks, much like conventional wood composites.
| Jul 23, 2014
Meet Acquario Ceará: The giant crustacean-shaped aquarium that's causing concerns
A new aquarium on Brazil's northeastern coast is designed, engineered, constructed and financed by U.S. firms and institutions.
| Jul 23, 2014
Architecture Billings Index up nearly a point in June
AIA reported the June ABI score was 53.5, up from a mark of 52.6 in May.
| Jul 22, 2014
Herzog & de Meuron unveil curvy concrete condo in Manhattan
Herzog & de Meuron have released renderings of their new $250 million New York building, a 12-story condominium with 88 luxury apartments.
| Jul 21, 2014
Designing the process of leadership transition
Transition planning can be one of the more complex challenges that firms face. Effective plans begin by determining the gap between a firm’s current state and the future it envisions for itself. SPONSORED CONTENT
| Jul 21, 2014
16 utility questions to answer during your building project
We need electricity to power our building projects, along with water and gas and a faultless sanitation system. That’s what we think about when we think about utility requirements for our building project, but are we missing something? SPONSORED CONTENT
