Good thinking ahead about the mildey and stuff, but I would put in a indoor bathroom, as far as
inside the yurt get a dehumidifer, and the water you collect is good water so do not throw it away, but I am sorry to say the materail you are using is going to not breath, wool like the mongolian use is fantastic , but do not disappear take your cover off make some water and colorox, bleach and mop it down let it dry in the sun and do the same for your
and put it back on your will be fine and when your cover is off and insulation put bug screen on your frame works great good luck