I've read many of the other questions about venting thru gable, but this seems slightly different. I discovered my upstairs bathroom fan is venting to the gable vent. Not ideal, I know, but may be ok enough in this situation. The wind and snow blows 99% of the time from opposite side of attic through this gable, so no moisture or precipitation is coming back in the attic there. It's rigid duct from fan to close to gable vent, then transitions to cheaper flexible duct for the final inches to gable screen. From the pic, you can see the rigid duct is angled down, then the flexible duct rises up several inches. It appears the flexible have separated a little from the rigid, so I'll have to go in and tape that.
Wouldn't vented steam cool and collect in that dip?
Should I cut the flexible ducting back so it meets the screen in the bottom corner, not 1/3 of the way up?
Should I raise the rigid with something so the angle points a few degrees upward instead of downward, allowing the hot air to rise up and out naturally?
Or should I just cut a roof vent above the fan to vent it out there? The roof above attic is hit hard with wind and lots of snow, so the gable venting may be better in this situation.