Do solar attic fans prevent ice damming?
Solar attic fans may be helpful in reducing attic temperatures so snow on the roof does not melt and then re-freeze in the colder eaves to create ice dams. We do not recommend using solar attic fans to prevent ice dams because bringing cool air into the attic allows more heat loss from the home to the attic, and solar attic fans only run during the day doing nothing to prevent ice damming at night.