In recent years there has been a concerted race by the timber industry to construct ever-taller timber buildings. New high-rise projects as tall as 100, 200 or even 300 metres are being built on an almost monthly basis. Currently, the tallest timber structure, called HoHo Wien, is being constructed in Vienna’s new district, Seestadt Aspern (fig. 2). Architects RLP Rüdiger...