Windows are required for any premises in all directions but maximum window is required in North, East and North- East side of premises , when window's will be build south and west side of premises it will be come in uncomfortable zone because there are more heat and sun glair / radiations , for protection of this area, here required less width windows (window height to be same level as per lintel level of whole building /premises) and also to be avoided to put windows at extreme corner of south west zone of premises and to be take care very precisely.