Hi dan!
I'm from the Lopez community land trust on Lopez island WA and we have 11 straw bale houses that were built with earthen walls under natural plaster. We had some moisture problems within the straw bales caused by inadequate roof overhangs and poor flashing around windows and doors that has all been fixed. But now we are seeing some high moisture readings 20-25% even though we are certain that the outside plaster is not getting any direct contact from the rain. . . It seems it is either a problem with the transpiration rates between the plaster and the earthen or something else. Some of the walls are perfect with bale moisture at 12-15%. I am curious about the previous post which suggests there is some type of wicking which the plaster encourages as it breathes, if so, can the plaster be modified on our walls to help lower moisture readings. Thanks for your help. I really would love a copy of your book, btw, since I could make it available in our library for use by our residents!