NOISE POLLUTION REDUCTION AND CONTROL PROVIDED BY GREEN LIVING SYSTEMS IN URBAN AREAS
Greening the building envelope is innovative technology in architecture that can regain losses of a natural environment in dense urban areas. Implementation of green living systems, greening horizontal surfaces with intensive and extensive green roofs or using vegetation in vertical greening systems for façades is a strategy that provides ecological, economic and social benefits and it is a sustainable solution for improving the environmental balance of cities limiting the major negative effects of urbanization providing better comfort at both building and urban level. The potential to provide external and internal sound insulation due to their high mass and absorption through the surface, reducing and control of noise pollution in urban areas, was investigated trough various studies. There are several situations in which noise reduction due to green living systems’ sound absorption should be considered important, such as buildings near to roads, rail or air traffic noise sources. The configurations of the systems, substrate thickness, and vegetation layer, are important factors affecting the sound absorption and sound propagation properties of these systems. This review paper presents findings from different research conditions and approaches, to explore the importance of green living systems considering the impact on noise mitigation and acoustic aesthetics of the environment.