New window frames and glass are being installed currently on the second and third floors. This window, on the southeast corner of the second floor, reflects the buildings of downtown. The thermally broken aluminum frame windows will result in lower energy costs and a more comfortable interior for the Central Library. Thermally broken refers to how the window is constructed. More precisely, it is manufacturing the aluminum frame window with a barrier in between the inside and outside window frames that will prevent the conductive thermal energy loss.