Vertical greening systems provide personal and social benefits.
The CBA determined that installation and maintenance services
costs play a fundamental role on the economic sustainability. For
some of the systems analysed in this study the benefits can not pay
back these costs. The most relevant benefits calculated in this CBA
are connected with the real estate and the energy savings for
summer air conditioning. While all the benefits could be considered
for studies based in other locations, the latter benefit is connected
with the specific location of this study characterized byMediterranean climate. The social benefits calculated in this study
have a very small influence on the CBA, since only the benefits
connected to air quality improvement and carbon reduction have
been quantified. However also the benefits mainly related to macro
scale can be considered as additional social benefits.