[woodyoda]

On highrise construction, we bituthane the roof, it's a material that you peal and stick down, a tar like material.
It could make a pool on your roof if you wanted it. Sounds like you'll have to at least peal back park of your roof, then bituthane it and get rid of gutters where you don't walk under them, let the water run off….easier to break off icecycles than keep repairing roofs….................yoda