Bringing ASHRAE 90.1 to the World: The Addition of Climate Zone 0

Until recently, the flagship standard on building energy performance – ASHRAE 90.1 – was silent on its application into these extremely hot climates. This presentation explores the new Climate Zone 0 and the recent changes to Standard 90.1 to expand its building performance guidance to these international locations. The presentation compares and contrasts critical building performance requirements for Climate Zone 0 with previous editions of the standard. It especially focuses on key building envelope and air leakage requirements that critically impact HVAC decisions and ultimate building energy performance. The session concludes with a discussion of additional areas where ASHRAE should expand its standards to address targeted building performance topics in CZ 0 and worldwide.