Natural Ventilation and Acoustic insulation – While a building facade is a barrier to the outside, it is also a mode of connect with the environment. Conforming to proper ventilation and good use of materials can give a good design as a desired output, which makes the building facade active in a context.Shield and barrier Against External Factors – It’s similar to clothing a human body, where we dress according to context. If the climate is harsh, the front facade design has to adapt to that situation, through materials, systems, techniques etc.