Especially the high level of the problem added: not much room to get a pile of pavilions eaves. More
Is conducive to drainage and the top of the household insulation insulation, if the above live or do study can also be installed inclined roof window.
May be a design institute style bar, that a district are they do. In fact you see the house too little, go to other places to see, you will find more high-rise building roof pavilion.
You are not very specific, I think there are several possibilities: 1, is the elevator room; 2, is the man's roof staircase; 3, other rooms