from Nancy in Appleton, WI:
#58
Why do my windows have condensation on them in the winter?
High humidity may likely be the culprit.
High humidity may likely be the culprit! Make sure you use ventilation fans in kitchens and baths to control moisture. A Home Performance with ENERGY STAR partnering consultant can check to make sure ventilation fans are venting directly outside and are venting to the capacity for which they were designed. In some cases the vent fan may have been installed to vent into the attic or may have become disconnected, or blocked rendering it useless. Our partnering consultants can help you solve these ventilation problems and also help determine if air sealing is needed. If you have a humidifier, check it regularly for proper operation. It could be adding too much moisture to your indoor air.
Learn more about the Home Performance with ENERGY STAR Program and a home energy evaluation here. To see the process online, view a video or an online demo