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
Healthcare Facilities | Mar 22, 2015
New Joplin, Mo., hospital built to tornado-resistant standards
The new hospital features a window and frame system that can protect patients from winds of up to 250 mph.
Sports and Recreational Facilities | Mar 19, 2015
Populous design wins competition for UK's most sustainable arena
The live-concert venue will seat an audience of 12,000, which the firm says will be masked by “the atmosphere and intimacy of a 4,000-seat amphitheatre.”
Multifamily Housing | Mar 18, 2015
Prefabricated skycubes proposed with 'elastic' living apartments inside
The interiors for each unit are designed using an elastic living concept, where different spaces are created by sliding on tracks.
Sponsored | | Mar 17, 2015
Are face-to-face meetings still important?
One CEO looks pass convenience and advocates for old school, in-person meetings.
Healthcare Facilities | Mar 16, 2015
Healthcare planning in a post-ACA world: 3 strategies for success
Healthcare providers are seeking direction on how to plan for a value-based world while still very much operating in a volume-based market. CBRE Healthcare's Curtis Skolnick offers helpful strategies.
Mixed-Use | Mar 13, 2015
Dubai announces mega waterfront development Aladdin City
Planned on 4,000 acres in the Dubai Creek area, the towers will be covered in gold lattice and connected via air-conditioned bridges.
Contractors | Mar 13, 2015
Construction materials prices rise for first time in six months
The largest monthly gain in petroleum prices in over three years caused construction materials prices to expand 0.4% in February, ending a six-month streak when prices failed to rise, according to the Bureau of Labor Statistics.
Contractors | Mar 12, 2015
Construction demand exploding in 2015, but costs complicate recovery
Raw materials and labor costs temper expectations for soaring profits.
Codes and Standards | Mar 12, 2015
Energy Trust of Oregon offers financial incentives for net-zero buildings
The organization is offering technical assistance along with financial benefits.
Multifamily Housing | Mar 12, 2015
Multifamily construction has been a boon to L.A.’s economy
A new study finds that nearly one-quarter of Los Angeles’ population lived in rental homes and apartments in 2013, a number that undoubtedly has increased since.
