The FacadeTool allows the user to understand how different facade paramaters interact in differents climate zones. Orientation in each of the four cardinal points has a measurable influence. The percentage of window glazing is presented as 30, 50 and 70 %. Inside or outside systems including overhangs or sun protection glazing provide sun shading. The type of glazing and the thickness of the insulation determine the degree of heat protection. And finally, the thermal mass and the potential of night ventilation influence the building climate.

Combining the represented paramaters makes it possible, in early planning stages, to estimate a large variety of facade concepts in different climate zones with regard to energetic and room climatic consequences.