2.2. Performance within rank two
According to prevalence of credit categories within rank two, Indoor Environmental Quality which is the second highest weighted category within the LEED rating system has received a high prominence both in the US and in Asia case studies. However a detail analysis of the credits indicates different strategies adopted in achieving a higher score in Indoor Environmental Quality rating. Both the US and Asian case studies have paid considerable attention to maintain compliance to ASHREA 55-1992 requirements for thermal comfort whilst indicating different levels of performance in other requirements.