[jyl]

Not a "green roof", trendy as that may be.

Thought is a fairly standard deck surface (but needs to be impermeable since it has to function as a carport roof), with raised and self-contained planter boxes around the periphery. Maybe a little space in the middle for a cafe table and a couple of chairs.

Had not figured out details of the planter boxes. What is an "earth box"? I was thinking basic wooden boxes, mounted at waist height, about 1 foot depth, filled with some sort of light-weight soil mix.