Derek, be careful of what you wish for, the Mayan calendar ends in a few years. We are entering a new galactic age.

I have been through all the issues brought up and seem to have reasonably addressed them to my satisfaction.

I have access to every item I would need with out going to the building supply store, with the exception of cellulose and screws. I would not insulate the roof. It will be strapped across the rafters and wooden shingles applied. I have even looked into granite, as a previous thread will attest too. Use the hot attic for drying herbs or something.

I grew up in a house built in the 1970, it used 2x4 studs with 3-1/2" of fiber glass, R-13. It is still lived in, this winter it burned 2 cords of wood. I will be happy with 12" of clay and chips. If the house is heated with oil I can see super insulating it. I do not plan of using a fossil fuel to heat my home, the wood will be salvaged or cut on my own land my me and my family.

Some great comments and thoughts.

Tim