Coastal environments have provided materials useful for the construction of roads, foundations, floors, walls and roofs for millenia. In regions such as Guangzhou, the Isle of Skye, and Taipei, the shells of molluscs have been used in buildings to help regulate internal temperature and humidity. Whether whole, crushed into aggregate, or burned into lime mortar, the production of natural cement from shells and their utility in the built environment proves that food ingredients and construction materials are not as separate as they may first appear.

Partnering with West Highland College and their Construction Skills Course we created a programme focusing on natural building techniques that use intertidal materials and waste food products. First offered in 2021-22, the programme encourages students to think beyond traditional materials and standardised construction through use of tabby concrete, seaweed thatching and insulation and casting of shell composite whilst reflecting on historical applications and techniques. The programme has been led by local experts including architect Olli Blair, and craftsman Ewan Thomson. The programme investigates how future designers and construction workers could incorporate these processes into contemporary construction with novel approaches and reduce the ecological impact of the build environment.

Supported by Historic Environment Scotland and Gaia Art Foundation.