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
Multifamily Housing | Jan 31, 2015
20% down?!! Survey exposes how thin renters’ wallets are
A survey of more than 25,000 adults found the renters to be more burdened by debt than homeowners and severely short of emergency savings.
Multifamily Housing | Jan 31, 2015
Production builders are still shying away from rental housing
Toll Brothers, Lennar, and Trumark are among a small group of production builders to engage in construction for rental customers.
| Jan 30, 2015
Investment in nonresidential structures expands in fourth quarter
Real gross domestic product expanded 2.6% during the fourth quarter of 2014, following a 5% increase in the third quarter.
Energy Efficiency | Jan 28, 2015
An urban wind and solar energy system that may actually work
The system was designed to take advantage of a building's air flow and generate energy even if its in the middle of a city.
Multifamily Housing | Jan 27, 2015
Multifamily construction, focused on rentals, expected to slow in the coming years
New-home purchases, which recovered strongly in 2014, indicate that homeownership might finally be making a comeback.
Office Buildings | Jan 27, 2015
London plans to build Foggo Associates' 'can of ham' building
The much delayed high-rise development at London’s 60-70 St. Mary Axe resembles a can of ham, and the project's architects are embracing the playful sobriquet.
Multifamily Housing | Jan 22, 2015
Sales of apartment buildings hit record high in 2014
Investors bet big time on demand for rental properties over homeownership in 2014, when sales of apartment buildings hit a record $110.1 billion, or nearly 15% higher than the previous year.
| Jan 21, 2015
From technician to rainmaker: Making the leap in your career
Many AEC firms focus on training for the hard skills of the profession, not so much for business prowess, writes BD+C's David Barista.
Modular Building | Jan 21, 2015
Chinese company 3D prints six-story multifamily building
The building components were prefabricated piece by piece using a printer that is 7 meters tall, 10 meters wide, and 40 meters long.
| Jan 21, 2015
Tesla Motors starts construction on $5 billion battery plant in Nevada
Tesla Motors’ “gigafactory,” a $5 billion project on 980 acres in Sparks, Nev., could annually produce enough power for 500,000 electric cars.
