Anyone ever run into saw dust insulation in a 1840 era home? My friend is asking if it will be a major drawback when he tries to sell his home soon to downsize. I have not seen the material but he says it is in excellent condition, not decaying and dry. My thinking is he will need to find a buyer that is drawn to historically significant houses and has an appreciation for that sort of thing. That type of buyer may be rare, not sure. What do you think?