"Tadelakt is a waterproof lime plaster sealed with olive oil soap and polished with a stone. Soft to the touch and warm to the eye, it can seamlessly cover walls, sinks, showers, and even bathtubs. One of few natural materials appropriate for wet areas, tadelakt is easy to clean and highly resistant to mildew. Originally from Marrakech, tadelakt has stood the tests of time in traditional North African hammams and royal palaces. As it has been passed down from master to apprentice for centuries, tadelakt has become one of the most beautiful hand crafted natural finishes on earth."
Info text from http://www.artesanoplaster.com/tadelakt.html
Yes, thank you. I understand this issue. I said the same thing when
contacted for information. However the case is not that the walls grow
fungi. The idea is that this person wants to build a MUSHROOM FARM. He
wants the mushrooms to grow inside the building, not inside the walls.
But for the mushrooms to grow he needs 75-90% Humidity inside the
building (as if it were a Sauna). So the question is how to avoid that
this necessary humidity affects the walls that surround it.
I know that some people have made SB Saunas, so I suppose that the
solutions that work for that would work for this...but am unsure as to
what solutions have worked, and more importantly which ones have
failed...
sincerely,
Rikki