A simple algorithm for calculating overall SHGC and U-factor At this moment I only build it such that I can use it for my thesis. More funtionality will come in the future. To install: pip install git+https://github.com/zha/window-overall-prop.git Usage example from window_overall import WinProp width = 1 depth = 1 gap = 'AIR' out_layer_optical_dir = "./dat/CLEAR_6.DAT" in_layer_optical_dir = "./dat/CLEAR_6.DAT" win_obj = WinProp(width, depth, out_layer_optical_dir, in_layer_optical_dir,'AIR') print(win_obj.overallSHGC) print(win_obj.overallU) Demo usage for NHICE conference paper Demo file here