advanced building skins 14 | 15 June 2012 - lamp.tugraz.at - Graz ...

Advanced Building Skins
With this approach, the critical part of the assembly – precise placement of the oak cladding boards –
is brought away from the construction site to a much more controlled workshop environment. The
substructure frame of each element can be laser-measured for quality control before and after attaching
the boards. Moreover, the elementation as such prevents possible inaccuracies from adding up across
the whole façade. The suspension detail between façade elements and primary steel girders allows for
final adjustment during erection, which was one of the main challenges, since the building tolerance of
the primary steel structure (±15mm) was ten times larger than the required precision for the outer
façade layer (see also fig. 9).
Figure 3: The façade during erection (Trebyggeriet)
This way, the whole façade – consisting of more than 14,000 individual building components – could
be produced with assembly gaps of as little as 10 mm between adjacent elements. This is no wider
than the defined gap between oak boards, letting the elementation disappear completely in lateral
direction.
Figure 4: Gaps between elements are only visible in one direction (Trebyggeriet)
- 3 -