Years ago I had the pleasure of being a hod-carrier for a wonderful plasterer craftsman. He taught me more than anyone else about my eventually future trade. One of the interesting old methods of insulation that was used in Norway piqued my interest and I believe it could work well for wattle and daub walls. Simply put, the insulation came from the creation of a double airspace by 3 layers of wattle and daub. Has anyone tried this?
I restored a home that was about 150 years old and was built using 2 rammed earth walls with an air gap between them. A double air gap would be even better and should be quite durable as long as you maintain a minimum of 8" wall thicknesses and tie the walls together somehow; they used steel brick ties on this home.
Onion rings are vegetable donuts. Taste this tiny ad: