The final lime layer of our natural floor has been put down. The floor comprises of a rock layer, followed by a cob layer and then two layers of lime plaster. We used clay and earth to add color to the lime. The first layer of lime cracked considerably and we did a series of experiments to see how best we could get the last layer not to crack. Our experiments showed that adding cement is not required, which is great.
Once the last layer of lime dried, we sealed it with a combination of linseed oil, turpentine and natural floor wax. The end result is beautiful. So far the floor is holding up well, it does not dust and is fairly waterproof. It is really easy to clean, just sweeping up dust and washing with water.
We used a combination of techniques to put the last layer of lime down. We put the floor down in one continuous go, without the use of any material to allow for expansion. It took some experimenting to crack it but the end result is amazing.