Powerwall supply an extensive range of rain-screen cladding, such as Aluminium, Terracotta and the state-of-art Ceramic rain-screens. Compared to traditional practice, the proper application of the rain-screen principle can result in a reduction in strength required for the cladding and its anchorage system, which must go hand-to-hand with an increase in strength in the air-barrier system and its anchorage system. One may ask, why bother switching the loads from one component to the other' Only a systematic and consistent approach to air and rain flows will produce durable exterior walls that can meet harmoniously all criteria of performance set by designers for the benefits of building owners and users. This systematic approach calls for a continuous air-barrier system that not only sustains wind loads, but controls air leakage moisture flow, noise, pollutants, etc. in a durable fashion; it is practically a prerequisite for rain-penetration control.