There are a number of design considerations that will affect the efficiency of green roofs. Some of these include soil type and thickness, vegetative species and cover, as well as roof geometry (area, ...

Green infrastructure (GI) and low impact development (LID) practices have emerged as effective ... such as sustainable drainage systems (SuDS), green roofs, and infiltration trenches, in enhancing ...

Low-income favelas would benefit from green roofs but there are two problems: Cost. And a typical design that's too heavy for a favela home.