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
Wood | Jul 8, 2019
Campaign launched to promote ‘climate-smart wood’
The Forest Stewardship Council and other groups aim to help buyers understand and make it easier to locate lumber that meets sustainable forestry standards.
Urban Planning | Jul 8, 2019
U.S. cities experience ‘Doppler shift’ in walkable urban development
The walkability trend is spreading to urbanizing suburbs.
Codes and Standards | Jun 27, 2019
Construction workers need continuous skills upgrades
A report by Autodesk and Deloitte focuses on how workers can succeed in an automated world.
Codes and Standards | Jun 27, 2019
Updated standard for liquid applied flashing for exterior wall openings released
AAMA document establishes minimum performance requirements.
Codes and Standards | Jun 27, 2019
Public restrooms being used for changing clothes, phone conversations, and 'getting away'
About 60% of Americans use a public restroom one to five times a week, according to the latest annual hand washing survey conducted by Bradley Corporation.
Codes and Standards | Jun 21, 2019
Green Globes 2019 accepted as a revised American National Standard
Advances include language on resilience, life cycle cost analysis, moisture control analysis, health, and effectiveness.
Codes and Standards | Jun 14, 2019
Reports from Intl. Code Council focus on expanding use of shipping containers as building materials
Three companies show compliance for using containers for housing.
Codes and Standards | Jun 13, 2019
Report explores potential for rope-less and multidirectional elevators in tall buildings
Technology can enable cities to be more interconnected, efficient, and accessible.
Codes and Standards | Jun 12, 2019
USGBC-LA launches Net Zero Accelerator
Goal is to enable building tech market adoption for a net positive future.
Codes and Standards | Jun 11, 2019
BREEAM USA In-Use standard to be released this fall
Will expand to include residential and multifamily for assessment and certification.