[bstark]

Terry and Jo; you are doing the right thing using your create-a-breeze fan in the bedroom/bath area to vent steam while showering.

The fan being discussed is the one in the "biffy" room that is indeed controlled by a small wall switch and is intended to vent odors from that little space. The problem is, it's not directly vented to the outside and has the roof insulation pack laying on top of it between it's exit end and the open bottom of short vent stack in the roof about 8" away from it.

Raising the insulation and fabbing up some ductwork/tubing to connect the outlet of the fan body to the bottom of that vent pipe not only prevents moisture laden air from saturating the insulation but ALSO vents the nasty odors (inherent with the functions the room is intended for) directly to the outside instead of merely into the attic cavity.