I just had a energy audit on my house. The house does not have any wall insulation. It was built in the 1930's. I have insulated the attic, and had energy efficient windows installed. I read on the internet that it is not a good idea to have cellulose blown into the walls in houses that have this type of balloon construction. A good article on this is at bobyapp.com/blog/2009/06/myths-about-insulating-old-house-walls. The last thing I need is a situation in the future where I have to gut all the walls in the house due to mildew problems brought on by what this article says. What do you think?