REAL "alternative' insulation - as in cost???? Has anyone tried something different for your floor or roof? - sawdust, wool, cardboard, straw?? This is not about the "government's" codes, but rather really doing it different. Insurance? Fire? Dimensional lumber homes with all their fire rated insulation and sheetrock seem to pile up the same when burned to the ground - seems the same for a log home though they seem to burn down less than conventional houses. So uninformed/unsubstantiated fears set aside. This this inquiry is for Alaska not New Mexico. Is there anyone who has really done it different.