A 30-storey residential building (importance level 3) with a 4-storey basement is about to be built in Sydney CBD. The floor height in the lobby (ground floor) is 4.5 metres, while the height of the remaining floors is 3.2 metres. The site is surrounded by existing buildings on three sides, most notably a 150-year-old heritage cathedral on its east side, and a fairly busy street on the south. Soil investigation reveals that the soil condition is mainly sandstone, and the ground water level is high.

What kind of faade system would you use for this building? Give at least 5 reasons to justify your selection.