Across thousands of homes, bathroom ceilings hum with exhaust fans that sound busy but leave mirrors fogged, grout damp, and paint slowly peeling. The problem is not that ventilation is a bad idea, it ...

Moisture problems tempt you to grab the quickest gadget or twist the thermostat a little lower and hope for the best. In reality, that kind of “easy fix” often traps more water in your walls, ducts, ...