Impact of green roofing on the energy performance of a residential building with a sunspace

Abstract

The construction of green, or vegetated roofs, can mitigate the heat island effect, reduce the energy required for cooling of buildings, allow for efficient precipitation management, improve air quality, increase biological diversity, reduce noise, etc. This paper uses the method of dynamic simulation to investigate how different green roof types influence the energy properties of an individual residential building with a sunspace located in the city of Niš. The obtained results show that when the extensive type of green roof is used on the model of the building with a sunspace, there are no significant changes in the required energy for heating or cooling. The biggest reduction of the energy required for heating and cooling occurs when an intensive green roof is used. In the subvariant of the model with an intensive green roof, the required energy for heating was 0.34% lower while the required energy for cooling was 2.32% lower compared to the model of the building without a green roof

Keywords

• green roof
• detached residential building
• sunspace
• energy performance