For the southern hemisphere, horizontal shading elements are sufficient for north-facing facades.
For eastern and western facades, recessed window panels give adequate protection from direct solar radiation. A good example of this is the Commonwealth Bank building which houses much of their computer data processing equipment. Another effictive example is the Parkroyal Hotel, Darling Harbour.
For south-east/south-west aspects, vertical mullions as used in 56 Phillip Street provide the necessary shading. Alternatively, vertical louvres as used in the Cammeray Motor Registry can be employed.
  The Commonwealth Bank building is a typical example of recessed window panels used to supply shading to glazing in eastern and western facades.
  56 Phillip Street uses vertical mullions to provide shading to the windows. This arrangement is suitable for south-east/south-west facades.
  Parkroyal, Darling Harbour, demostrating effective sunshading from recessed window panels.
  Cammeray Motor Registry uses vertical louvres, which are suitable for south-east/south-west facades.