Hi Keira,
Very cool to hear about your ideas, balecob appeals to me very much as well. I'm also in MA (although Eastern) and very interested in learning and working on natural buildings - let me know if you'd like any help with your buildings.
Stumbled upon your thread while looking up ideas on roof insulation as I'm planning a small project and/or retrofit. Have you considered HempWool? I've seen this used for roofs. Product guide:
https://www.hempitecture.com/_files/ugd/86419d_0f6e16e6e3ba48e687958ff5806e8b9d.pdf
- Emily
