There are essentially four types of terracotta system. 'Bardeau' system
The Bardeau system using French clay was originally imported into the UK by Smithbrook Building Products but is now marketed by Terreal using a French tile manufacturer; Guirard Freres. It was originally used at Cité Internationale de Lyon by Renzo Piano. The maximum size of the tiles is 1400 mm x 300 mm x 70 mm; they are fixed to a metal framework using proprietary stainless steel clips at each end of the tile. It can be used in conjunction with the Bardeau tubular
'mulots' or sunscreens to ensure continuity in the facades architectural expression around openings.
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