And for proper bathroom ventilation your exhaust fan needs to vent outside not into the attic or another area of the house.
Gap under bathroom door for ventilation.
The flow dropped from an unrestricted 150 160 cfm down to under 100 cfm in each room.
Using the link you have provided it has a picture of a french full lite door with a vent that has removed a significant part of the door s base.
There should be plenty of room under the bottom of the bathroom door to allow air to get into the room so the fan has a source from which to pull the air it needs.
If more gap is required it is easier to trim a door than to lengthen it.
I like the suggestions for wall ceiling jump ducts etc.
7 mistakes not to make in your bathroom remodel do let your.
Check your bathroom door.
Client always resist 1 gap over the floor covering.
However the size of that gap is very unlikely to be greater than 1 2 for any door.
If the bathroom vent can t get any air of course it isn t going to work the right way.
There is a need for an air gap at the bottom for ventilation.
The jumper makes sense in some cases.
I think it is too big and think a 1 4 1 2 gap would accommodate any unevenness in our floors and allow us to use area rugs.
There is an approximately 1 5 gap at the bottom of the doors.
If your door has very little or no clearance at the bottom you.
This is less than desirable in bathrooms and bedrooms.