Energy Retrofitting and Thermal Comfort Improvement of the Public Buildings in Malaysia

Sustainability and environmental matters are two important discussion topics at present. Some other important issues, e.g. the use of energy, are related to sustainability matters. In order for a country to develop and grow economically, energy is a significant element that is mostly used in buildings and the problem is that they waste the energy especially in public buildings such as libraries. As a result, analyzing and retrofitting energy consumption in public buildings is the purpose of the present research. It will be done by applying Building Information Modeling (BIM) software with the aim of reaching comfort level and energy management. BIM software was applied in a case study and with the help of the energy analysis software then the analysis was carried out. Improving the efficiency of energy consumption was made possible, through identifying and changing the present patterns of energy usage. With the aim of changing the materials, internal design and the building's comfort level, a practical method was suggested in this case study which resulted in a safe temperature for books, a comfortable temperature for users, in addition to energy preservation of up to 25%.