Sustainable low CO2 emission retrofit strategies of public building in Mediterranean area: a case study

Energy consumption in public buildings increased drastically over the last decade. Significant policy actions towards the promotion of energy-efficiency in the building sector have been developed which involve sustainable low CO2 emission technologies. This paper aims at proposing a retrofit strategy in an attempt to improve energy efficiency of public building located in Mediterranean area. The study results show that simple retrofit of sustainable low CO2 emission strategies such as wooden double glazed windows, organic external wall insulation systems and green roof can reduce energy needs for heating and cooling of 58.5% and 33.4% respectively. Furthermore, the use of sustainable materials reduces the carbon footprint index of building after retrofit by 54.14% compared to the standard building.