I, for one, find them very positive. Yet I also believe this is a very well known and understood traditional method that just fell out of favor and use because of the IR (industrial revolution) and all it brought us. This practice is both germane and useful, as are the "tiling methods," with both clay tile, stone, paper, board, carpet padding, and anything else that can either be "shingled" and or contribute to sealing in some capacities. All have great promise when well planned for and design into a system of application.
Cob is sand, clay and sometimes straw. This tiny ad is made of cob:
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