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 | Jun 8, 2020
5 must reads for the AEC industry today: June 8, 2020
Frank Lloyd Wright sites set to reopen and construction jobs rise by 464,000.
Codes and Standards | Jun 8, 2020
Reopened offices raise liability risk for businesses and owners
Risks may not be covered by property insurance.
Codes and Standards | Jun 4, 2020
American Wood Council updates report on fire resistance of wood members and assemblies
Provides new examples and background on mass timber calculations.
Codes and Standards | Jun 3, 2020
Virginia makes GCs liable for subs employee wages
New law allows workers to sue GCs for wages in class action.
Codes and Standards | Jun 2, 2020
Designers, owners reinventing restaurants to cope with COVID-19
Options include rearranged seating, mobile ordering, designated flow spaces.
Codes and Standards | Jun 1, 2020
How owners should comply with OSHA roofing safety guidelines
Buildings should have fall protection and restraint provisions for those who go on roofs.
Codes and Standards | May 29, 2020
AIA releases new, updated sustainable project documents
Streamlined sustainable design and construction process included.
Codes and Standards | May 28, 2020
USGBC outlines how it will support pandemic recovery efforts
Includes emergency guidance and upgrades to the LEED green building program.
Codes and Standards | May 27, 2020
Office market could be COVID-19 casualty
As companies get used to work at home, post-pandemic office market could collapse.
Codes and Standards | May 26, 2020
Architectural Reuse Council will step up efforts to reuse construction waste
Cabinets, appliances, lighting, and lumber diverted from landfills to be repurposed.