ProMeta to achieve high quality indoor environment with optimum cost has always experienced a challenge for the construction industry. For sustainable development in the world there are some requirements to be accomplished. Energy usage and environmental impact mainly begins with Designer’s coordination. A building comprises several thermodynamic domains—air movement, radiation exchange, moisture flow, electrical power flow, daylight distribution which may interact with the others in a non-trivial manner. Adjusting the position of a window shading device will have cascading effects on glare, internal daylight level, artificial lighting requirement, luminaries’ heat gain and space cooling, heating and electricity demand. Clearly, the construction industry has some way to go if it wishes to incorporate a rigorous life cyclic analysis into its future design practice. Simulation supports the emulation of future realities at the design stage. It gives practitioners the ability to appreciate the underlying behavior of a system and. thereby, to take judicious steps to improve performance across the range of relevant criteria.
