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
| Sep 26, 2013
EPA’s final rule on updated ASTM standard likely to be withdrawn
The Environmental Protection Agency is expected to withdraw a direct final ruleissued in Augustregarding an ASTM standard for Phase I Environmental Site.
| Sep 26, 2013
A primer on RoofPoint green-rating system for commercial roofs
The RoofPoint green-rating system can be used to construct more energy-efficient and sustainable commercial roofs.
| Sep 26, 2013
ConsensusDocs releases updated federal subcontract to help construction firms perform federal work
The newly revised ConsensusDocs standard subcontract (ConsensusDocs 752 for federal work) will make it easier for general contractors and subcontractors to perform federal work.
| Sep 18, 2013
Proposed Boston casino development approval will depend partly on sustainability
The movement toward green building has been slow to catch on in the casino industry, but that could change with Suffolk Downs, which plans to build a $1 billion casino in Boston.
| Sep 18, 2013
Regulations could ease firefighters’ fear of roof solar panels
The local fire chief says solar panels are partly to blame after a 300,000 sf refrigerated warehouse in Delanco, N.J., burned down.
| Sep 18, 2013
New AISC design guide on structural stainless steel now available
For the first time in the U.S., design professionals now have an authoritative resource on structural stainless steel with AISC Steel Design Guide No. 27, Structural Stainless Steel.
| Sep 18, 2013
DBIA’s ‘Design-Build Done Right’ best practices project seeks industry input
The Design-Build Institute of America (DBIA) is seeking industry input on its project to create a design-build best practices document.
| Sep 11, 2013
USGBC Florida Chapter survey to help contractors adopt sustainable practices
Contractors in Florida could benefit from a data collection project by the state's chapter of the U.S. Green Building Council.
| Sep 11, 2013
Disability, vet hiring standards for contractors are goals, not quotas
Contractors that fall short of new federal hiring rules concerning veterans and disabled persons will not necessarily incur penalties, says Patricia Shiu, director of the Office of Federal Contract Compliance Programs.
| Sep 11, 2013
Sports stadium accidents suggest code updates may be necessary to prevent falls
Since 2000, at least three individuals have died as a result of falling from the upper decks of stadiums in the United States. In addition, eight non-fatal falls have occurred in stadiums and arenas over that time.