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
Codes and Standards | May 30, 2017
Industry Groups move toward Unified Green Building Model Code in 2018
The effort involves combining ASHRAE's Standard 189.1 with the International Green Construction Code.
Codes and Standards | May 30, 2017
OSHA suspends electronic injury, illness reporting requirement
The agency is keeping records from being publicly disclosed—for now.
Codes and Standards | May 30, 2017
Florida preparing to adjust to new building elevation requirements
New floodplain maps and state code changes loom.
Codes and Standards | May 30, 2017
Heated debate over whether Calif.’s prevailing wage requirement stymies affordable housing
There’s disagreement around how much pay regulations add to cost of projects.
Codes and Standards | May 25, 2017
Technology is influencing parking requirement codes in new developments
Uber and Lyft make it easier for urban dwellers to live without owning cars.
Codes and Standards | May 25, 2017
Better Buildings Challenge Partners on track to reduce energy usage by 20% in 10 years
More than 1,000 proven solutions are now available on DOE web site.
Codes and Standards | May 22, 2017
Affordable housing initiative drives surge in residential unit permits in New York City
New permits tripled from year-ago period.
Codes and Standards | May 22, 2017
Amid labor shortage, industry groups urge government action to boost trades
AGC says a shortage of qualified workers is limiting the economy from adding more jobs.
Codes and Standards | May 19, 2017
Spate of sinkhole incidents points to neglected infrastructure investment
Suddenly appearing caverns cause deaths, evacuations, interruption of utility services.
Codes and Standards | May 18, 2017
AIA releases updated edition of its A201 flagship documents
These core documents are updated once a decade.