At the top of Highgate hill sits the very exposed Highgate school, where the ornate terracotta pierced balustrade around the chapel roof had deteriorated  to such a degree that replacement was the only option.  Using recently developed techniques and more versatile materials, we were able to construct a very thin silicone mould.  This allowed us to cast new reinforced panels and then simply peel away the rubber to reveal the intricate shapes of the corn and flower details.