A track area is made to fix the sliding windows. A granite is fixed on the wall where sliding window frame comes. Behind the wall a marble is fixed where the sliding window comes and this marble is not visible. Only the granite is seen from out.
The granite and marble are fitted (called as detailing work) in such a way that when rain comes, the water from out doesn’t enter the window. The detailing work is very important. This work is done from all four sides of the window so that water doesn’t enter the room. After the window frame is put,the granite and frame comes in same level.
You can do moulding to the edges of the window or just a plain patti can be fixed. It depends on you how you want the window. The marble cost you 30-35 Rs./-sft and granite is 125/-sft