Handyman Insurance, Overhaul of ASHRAE 90.1 Brings New Requirements
The 2013 ASHRAE 90.1 energy standard will require more stringent equipment efficiencies and lighting thresholds. The recently published 2013 version of ANSI/ASHRAE/IES 90.1 includes significant revisions to building envelope, lighting, and mechanical appliance requirements, making the standard 40%–50% more stringent than the 2004 version, according to ASHRAE.
Containing more than 100 changes from the previous 2010 version, the standard’s fenestration requirements now include double glazing in many climates and establish a minimum visible transmittance/solar heat gain coefficient (VT/SHGC) ratio to allow day lighting with minimum solar gain. Minimum efficiencies are increased for chillers, heat pumps, and air conditioners, as well as being established for fans for the first time.