ASHRAE recently released an updated edition of ANSI/ASHRAE/IES Standard 90.2-2018 Energy-Efficient Design of Low-Rise Residential Buildings.
The 2018 revision of Standard 90.2 outlines cost-effective residential building energy performance measures that are at least 50% more efficient than those defined by the 2006 International Energy Construction Code (IECC), according to an ASHRAE news release. “Standard 90.2 provides a mechanism by which any residential building design can be easily evaluated against performance objectives,” said Theresa Weston, Ph.D., chair of the Standard 90.2 committee. “This update to the standard offers better alignment between this standard’s requirements and marketplace product availability as well as some revisions to improve the document’s clarity and internal consistency.”
The updated version provides:
· Clarification for modeling software requirements
· Guidance on the use of international climate data presented in ASHRAE Standard 169
· A new normative appendix on proper installation techniques for critical thermal resistance building components
· Improved prescriptive envelope performance data tables
· New performance specifications for ground-source heat pumps
· Minimum lighting efficiency provisions for single-family, large single-family, and multifamily homes
· Guidance on pool heater pilot lights, pump motor efficiency, and exterior de-icing systems
· Clarifications to multi-zonal building air-leakage testing procedures
Related Stories
| Mar 8, 2012
Engineering innovation provides new option for meeting seismic codes in skyscrapers
Two University of Toronto engineers have developed “viscoelastic-energy-dissipating dampers” to replace many of the heavy concrete beams used in tall structures.
| Mar 8, 2012
CSI webinar on building code compliance March 22
A March 22 webinar will provide an overview of a 28-step process during the design of a building to ensure compliance with building codes.
| Mar 8, 2012
Federal silica dust rule caught in bureaucratic limbo
A federal rule meant to protect the lungs of workers has been caught in bureaucratic purgatory for more than a year.
| Mar 8, 2012
New LEED-EBOM rating has requirements for specific project types
Several key changes are proposed for the LEED-EBOM Rating System in 2012.
| Mar 8, 2012
Green buildings more resilient than conventionally built structures
A new study by the U.S. Green Building Council (USGBC) and the University of Michigan’s Taubman College of Architecture and Urban Planning suggests that structures built to green standards can advance building resiliency.
| Mar 1, 2012
LEED Platinum standard likely to mean net-zero energy by 2018
As LEED standards continue to rise, the top level, LEED Platinum, will likely mean net-zero energy construction by 2018.
| Mar 1, 2012
EPA beefs up stormwater discharge rule from construction projects
The U.S. Environmental Protection Agency (EPA) has now finalized its 2012 construction general permit (CGP) that authorizes stormwater discharges from construction projects that disturb one or more acres of land in the areas where EPA is the permitting authority.
| Mar 1, 2012
Regulators investigate structural failures during construction of two Ohio casinos
Regulators with the Occupational Safety & Health Administration and the city of Cincinnati are investigatingthe collapse of the second floor of Cincinnati's Horseshoe Casino as workers were pouring concrete.
| Mar 1, 2012
Is your project too small for LEED? Consider other green standards
There are many other recognized national, state and local programs that offer a variety of best management practices and sustainable design, construction and operating strategies.
