With a greater emphasis on air sealing and stopping air leaks, homes are “tighter” than they were in the past. This makes moisture management more important than ever before. Excessive moisture can cause problems in your home such as spots on the ceiling or moisture buildup on windows which can lead to rotting window framing, unpleasant odors and, in extreme cases, mold. Make sure your bath fan is the correct size, is vented to the outside (i.e., does not vent the moisture into the attic space) and most importantly make sure you use the fan. An easy rule of thumb is to always run the fan while you are using the shower and for 30 minutes afterward. Contact your local handyman or electrician to install a timer to help ensure the use of the fan by the entire family. Click here to learn more about ventilation.