2. Methodology
Building energy simulation is conducted using dynamic energy simulation software DOE-2.2. The DOE-2.2 was chosen primarily due the fact that the graphical user interface in eQUEST software enhanced our ability to generate multiple simulation models with different geometries. Also, DOE-2.2 has a comprehensive documen- tation that was needed for manipulating the simulation input files during Monte Carlo simulation process. Key parameters relevant to building envelope, such as orientation, occupancy schedules, fen- estration, etc. were considered in this study. The remaining inputs, such as HVAC system, lighting load, etc. which are needed to run an annual energy simulation were considered as constant parameters. Fig. 1 shows the framework of the study.