If moisture (mildew) indoors is an issue as the indoor cools, then would=20 not a dehumidifier be helpful? As the humid air cools, the relative=20 humidity goes up, and condensation occurs. Also vapor barrier at cool=20 side of wall needs to be intact, and sufficient insulation to keep=20 surface above dew point temperature. These are routine for us Northern=20 people. :) On 12/22/13 11:37 PM, Justin Richards wrote: >> mildew is a problem. It was 70 degrees here today in North Carolina and >> > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .