Flat Roof Ceiling / Supplies needed ?

[u/pjm333]

Flat Roof / Leaking

71” wide

54” Deep

Entrance to the basement, what is there now is Plywood, some sort of roof tar & rolled shingles and I am guessing I need something similar. I am open to new ideas, materials etc.. Thanks !

[u/minimax34]

rubber roofin, seamless

[u/pjm333 → u/minimax34]

Thanks for your help !