The Annex building at 15 Alice Lane got a green overhaul with a perforated facade made from Novelis ff2®, which is designed for durability and economic efficiency.
The exterior of the Annex building at 15 Alice Lane, Sandton, designed by Paragon Architects, creatively combines a glass shell with a rear-ventilated and perforated Novelis ff2® facade that enables sun protection with simultaneous light transmission.
The Novelis aluminium sheets protect the building from morning and afternoon sun and regulate natural lighting. At nightfall, the interior illumination shines through the punched front to create an interplay of light and dark. In addition, the way in which the painted aluminium was punched creates silhouettes of tree images on the eastern and western gables.
In total, 4 686m² of 2mm thick Novelis pre-painted aluminium in sunrise silver were installed. A coating with a Polyvinylidene fluoride (PVdF) content of 80% was used to ensure a long-lasting brilliant colour effect.
Novelis ff2® pre-painted aluminium is specially developed for facade applications and has a proven track-record in the market due to its outstanding product characteristics and excellent processability. The high-strength mechanical properties of Novelis ff2®, combined with a high resistance to ultraviolet (UV) radiation, ensure durability even in extreme climates.
Facade consultants, Andrew Riley & Associates, also chose Novelis ff2® for the minimal maintenance it requires, which is essential for the economy of a building of this size.
A green star contributor
The reduced power consumption as well as the almost infinite recyclability of aluminium played a pivotal role in the building’s green accreditation. The Annex building was awarded with a four Star Green Star rating by the Green Building Council of South Africa (GBCSA).
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