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 7, 2015
Several states moving to repeal prevailing wage laws
Anti-prevailing wage bills that apply to state-funded construction projects have been passed in West Virginia and Nevada. Similar laws could be passed in Indiana and Illinois.
Codes and Standards | May 7, 2015
New OSHA rule aimed at protecting construction workers in confined spaces
The agency says the rule will protect about 800 workers a year from serious injury.
Codes and Standards | May 1, 2015
Colorado House kills construction defects bill
The legislation would have made it harder for condo owners to sue builders.
Codes and Standards | May 1, 2015
New energy efficiency program, Tenant Star, gets OK from Congress
The voluntary program for commercial and government buildings is modeled after Energy Star.
Smart Buildings | May 1, 2015
FEMA to require states to evaluate risks posed by climate change
The aim is for states to do a better job planning for natural disasters they are likely to face in a warming world.
Codes and Standards | May 1, 2015
Department of Energy asks for feedback on cost-effectiveness of building energy codes
DOE’s RFI wants input on how to improve methodology on cost assessment.
Codes and Standards | Apr 22, 2015
New York State renews design-build authority
Five state agencies are allowed to use design-build on certain projects.
Codes and Standards | Apr 22, 2015
OSHA’s estimated cost of silica rule said to underestimate impact by $4.5 billion annually
The coalition says that OSHA’s flawed cost estimates point to flaws in the rule, and has urged the federal agency to reconsider its approach.
Codes and Standards | Apr 22, 2015
2016 Seismic Provisions for Structural Steel Buildings draft available for public review
The comment period is open until May 29.
Codes and Standards | Apr 22, 2015
GBCI renamed Green Business Certification Inc.
The name change reflects the organization’s expanded certification and credentialing services.