SHADING DILEMMA
  


The prime objective of shading is to moderate the building energy consumption.

On one hand, shading intercepts summer direct solar radiation, as a result, reducing the cooling loads during the summer. --Positive--

However, on the over hand shading also reduces desirable winter solar gain and daylight, as a result, increasing the heating and artificial lighting loads. --Negative--

 
SOLUTION

An optimal solution for a fixed shading device or overhang would be to utilize a shading form which provides an optimal balance among the necessity for:
  • Solar Obstruction
  • Solar Gain
  • Daylight

 
UNIQUE FORM


Since solar radiation vary according to different sun angles and the sun appears in the sky in curved pathways, even a rectangular window will not have an optimal shading form with simple geometry!

Since windows or walls are varied in configurations, orientations, and locations around the world, it is natural, that each one requires a unique shading form!

 
IMPORTANCE


An optimal form can help to optimize annual building energy conservation, reducing the cost in operating mechanical systems of cooling and heating;

further supporting the world energy conservation and sustainability.