Vertical Greenery Systems: A Review of Factors Influencing Their Thermal Performance

Abstract

Urbanization and rapidly growing population change cities' features and convert them to concrete jungles with more buildings and fewer green areas. This bad conversion cause number of aesthetic, economical, and environmental issues like air and water pollution, higher energy consumption, increasing air temperature which lead to discomfort in outdoor and indoor environments. Vertical greenery systems (VGSs) stand as one of the green infrastructure features used to indemnify the lack of horizontal greenery and enhance the building envelop interaction towards the internal and external environment. Vertical greenery systems are living and dynamic component. Many studies have been conducted to recoginse how vertical greenery systems work and what affect their thermal performance. This paper aims to provide a deep understanding of different factors that affect the impact of this vegetated wall. These factors fall into two main categories: building-related factors and greeneryrelated factors. Comprehensive review of the variables influencing VGS performance will lead to better design decisions for VGS elements and will improve utilization potentials.