Green Roofs and Urban Design
I remain skeptical about all the hype around green roofs and green walls. This is not to say that when delivered comprehensively, that green roofs can be very effective in reducing temperatures of the buildings. It is more that so many of the current crop of green roofs and green walls are token add-ons.
Despite the hype by the building companies and their contractors about how wonderful particular green walls and roofs are, many are superficial and deliver very limited benefit, if any. When done properly, a green roof can be a contributor to the green infrastructure of urban areas.