With its ability to improve a building's thermal efficiency and maximise natural light, polycarbonate plastic is becoming increasingly popular in architecture. We've rounded up seven of the best examples.

Municipal Sports Hall, Spain, by BCQ
Translucent plastic panels with a colourful pixellated backdrop form the walls of this sports hall in Girona, creating a visually lightweight addition with an ethereal quality that matches the colours of the sky.
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Casa Policarbonat, Spain, by Bunyesc Arquitectes
To enhance the thermal efficiency of this old house, Bunyesc Arquitectes added a polycarbonate facade. It forms a layer of external insulation, but also helps to passively heat the interiors.
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House for Tousuienn, Japan, by Suppose Design Office 
Located in a dense urban site in Hiroshima, the walls of this house are constructed from translucent polycarbonate, chosen by Suppose Design Office to enable light to flood the interiors without compromising the residents' privacy.
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The Mansio, UK, by Matthew Butcher, Kieran Wardle and Owain Williams
Designed to reflect a Roman fort stationed on Hadrian's wall, Butcher, Wardle and Williams constructed this structure from polycarbonate to ensure it stands out from its surroundings and remains visible from a distance.
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The Leff Art Studio, USA, by TBD
TBD used polycarbonate t...