Greetings! We are almost three years into our cob sauna project. All is going well. Initial plastering under way. I am trying to educate myself to do the cob floor for the hot room. This seems a bit more daunting than the changing room floor. First, the hot room floor must slope from all points to the drain. Second, I am concerned about how to finish the hot room floor. Will the usual linseed oil, thinner, and wax be enough for a room that will be periodically very wet? Does anyone have experience or opinions with using cob to floor a sauna hot room?
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