With the exception of the roofs, the buildings within the Body Corporate development are predominantly clad in powder coated aluminium weatherboards using a proprietary system. The roof are clad in low maintenance pre-painted steel long-run (Coloursteel) roof cladding. The Body Corporate undertakes cleaning of all of the exterior elevations of the buildings throughout the development annually, and as part of its maintenance programme. In order to protect the weathertightness integrity of the buildings, the Body Corporate’s Operational Rules, and more particularly r15 (c), expressly prohibits residents from creating penetrations through any component of a building’s exterior envelope within the development.