Stone is a sustainable building material that has applications beyond use in cladding, according to a new exhibition in London, UK.

The ‘New Stone Age’ Exhibition surveys the contemporary use of structural stone and its sustainability credentials.  Stone has the ability to reduce a project’s embodied carbon by an incredible 90 per cent compared to typical steel or concrete frames.

Exhibition Curator and Architect Amin Taha says, “Stone is the great forgotten material of our time. In 99% of cases, it’s cheaper and greener to use stone in a structural way, as opposed to concrete or steel, but we mostly just think of using it for cladding.”

Through the Exhitibition, Taha together with stonemason Pierre Bidaud and engineer Steve Webb aim to show the potential of stone beyond decoration and how it can revolutionise contemporary construction as we know it.

Using stone for the core, structure and floors, they argue, would be 75% cheaper than a steel and concrete structure, and have 95% less embodied carbon. The primary reason for the saving is that, while concrete and steel have to be fireproofed, weathered, insulated, then clad, a stone exoskeleton can be left exposed.

By embracing stone as combined superstructure and external architectural finish, Tana says, we can save 60-90% of CO2 emissions for these key building elements.

The New Stone Age is at the Building Centre, London, UK until 15 May.

Source:  The Guardian