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You are at:Home»News»ASHRAE updates residential standard

ASHRAE updates residential standard

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By Plumbing & HVAC Staff on January 29, 2019 News

Low-Rise Residential BuildingsASHRAE has released an updated version of the ANSI/ASHRAE/IES Standard 90.2-2018, Energy-Efficient Design of Low-Rise Residential Buildings. The standard establishes a minimum whole-building energy performance requirement for energy-efficient residential buildings.

The new standard outlines cost-effective residential building energy performance measures that are at least 50 per cent more efficient than the older standard created in 2006.

“Standard 90.2 provides a mechanism by which any residential building design can be easily evaluated against performance objectives,” said Theresa Weston, 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.”

Updates include clarification for modeling software requirements, guidance on how to use international climate data taken from ASHRAE Standard 169, an appendix on proper installation techniques for critical thermal resistance building components, prescriptive envelope performance data tables, performance specification for ground-source heat pumps, guidance on pool heater lights, pump motor efficiency, exterior de-icing systems, clarifications to multi-zone building air-leakage testing procedures, and minimum lighting efficiency provisions for single-family, large single-family and multi-family homes.

 

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