Part 2 of my question – Is it ok to blow in dense pack cellulose to the walls of a 1935 small Cape without having a “moisture barrier”? A friend suggested because of the heat/cold differential, there might be condensation, which could moisten the cellulose and eventually damage the frame. The MassSave people say this is unlikely- only in case of ice-dam water damage, for example, would the dense pack cellulose get wet-enough to matter. Thanks very much for your previous comment.
Miriam