#EarthBuilding: On a recent 19th Century #retrofit project I discovered behind a thin layer of #lime, the plaster was a crumbly, lime stabilised #earth. Days later, replacing bathroom tiles in my 30’s semi - I found internal walls made from #straw blocks, bound by soft plaster. #NaturalBuilding materials are not fringe pursuits. From the many lump earth (#cob, #dabbins) buildings in Devon and Cumbria, to the more subtle use of #clay in #mortars & #plaster these materials are all around us.