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Eco-sourced know-how: masonry and structural work techniques

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By Bat info source: FFB - French Building Federation via YouTube

Cob, hempcrete, BTC / Adobe, dry stone, rammed earth, stone cutting, lightweight earth, cob... Interview with Frédéric Létoffé, head of the Research and Development project on eco-sourced know-how, and Christophe Lubert, specialist in hempcrete.