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
| Feb 16, 2012
Gain greater agility and profitability with ArchiCAD BIM software
White paper was written with the sole purpose of providing accurate, reliable information about critical issues related to BIM and what ArchiCAD with advanced technology such as the GRAPHISOFT BIM Server provide as an answer to address these issues.
| Feb 16, 2012
TLC Engineering for Architecture opens Chattanooga office
TLC Engineering for Architecture provides mechanical, electrical, structural, plumbing, fire protection, communication, technology, LEED, commissioning and energy auditing services.
| Feb 16, 2012
Summit Design + Build begins build-out for Emmi Solutions in Chicago
The new headquarters will total 20,455 sq. ft. and feature a loft-style space with exposed masonry and mechanical systems, 15 foot clear ceilings, two large rooftop skylights and private offices with full glass partition walls.
| Feb 16, 2012
Highland named president of McCarthy Building Companies’ California region
Highland moved into this new role in January 2012 following a six-month transition period with Carter Chappell, the company’s former president, California region.
| Feb 16, 2012
Big-box retailers not just for DIYers
Nearly half of all contractor purchases made from stores like Home Depot and Lowe's.
| Feb 16, 2012
4.8-megawatt solar power system completed at Jersey Gardens Mall
Solar array among the largest rooftop systems in North America.
| Feb 15, 2012
Fourth-generation Ryan to lead Ryan Companies AE team
Ryan leads a team of eight architects, four civil engineers, two landscape architects and two virtual building specialists in their efforts to realize their customer’s vision and needs through Ryan’s integrated project delivery system.
| Feb 15, 2012
NAHB sees gradual improvement in multifamily sales for boomers
However, since the conditions of the current overall housing market are limiting their ability to sell their existing homes, this market is not recovering as quickly as might have been expected.
| Feb 15, 2012
Skanska secures $87M contract for subway project
The construction value of the project is $261.9 M. Skanska will include its full share, $87 M, in the bookings for Skanska USA Civil for the first quarter 2012.
| Feb 15, 2012
Code allowance offers retailers and commercial building owners increased energy savings and reduced construction costs
Specifying air curtains as energy-saving, cost-cutting alternatives to vestibules in 3,000-square-foot buildings and larger has been a recent trend among consulting engineers and architects.
