anybody ever done a waterproof deck over living space (aka roof top deck?) and what did you use, and how has it held up?
I'm curious about this, also. I'm planning an inverted dormer that will act as a balcony on our next home, and it will have living space below it. My thought was to flash completely around the perimeter of the area, put a concrete friendly panning above the joists, and then pour a layer of lightweight concrete on top of the panning. With the concrete sloping away at 1/4" a foot.
