Review of green retrofit technologies and policies for aged residential buildings in Hong Kong

Abstract

Green retrofit of aged residential buildings contributes to reduce global energy consumption and greenhouse gas emissions. The promotion of green retrofit and the performance of retrofitted buildings depend on applicable technologies and policies. A wide range of retrofit technologies and retrofit policies have been applied throughout the world. However, little attention has been paid to identify suitable retrofit technologies and retrofit policies for particular regions, for example Hong Kong. In this study, both of technologies and policies of refurbishment were reviewed and examined with aiming to implement suitable green retrofit technologies and policies in Hong Kong. In referring to the particular characteristics of Hong Kong residential buildings, 28 green retrofit technologies and 18 green retrofit policies were recommended. The findings in this study are useful for local government setting up green retrofit strategies for Hong Kong and also provide good references for other countries and regions.