No matter the location of the bathroom you can vent the exhaust fan through the wall.
Run bathroom vent along wall to outside.
The location of the bathroom will determine how extensive the ductwork will be.
If the toilet drain does not connect directly to a vent you must find another way to vent it.
Behind the wall where you can t see a vent line and drainpipe lead to a soil stack which is the control center of the wastewater system.
Toilet vent option 1.
But you can minimize the noise by installing an inline fan somewhere along the duct run that s away from your living space.
I live and work in the cold boston area.
Let s say you have a bathroom located away from an exterior wall and it s not possible to vent the fan through the roof.
In all cases the ducting needs to conduct the exchaust to the building exterior and needs to terminate in an animal proof vent cover.
You may be able to configure a short route.
A drainpipe attached to the p trap goes into an opening in the wall.
The new room will be in an alcove with the back wall being the outside of the house.
In our new house the soffits are a long way from our bathroom so the easier route was to install a wall vent outlet similar to a dryer vent outlet directly below the attic vent on the side of the house.
I think it ll be around thirteen feet including the bathroom area to run a duct from that point above the ceiling along the adjacent bedroom to get to an outside wall.
Through the stack sewer gases are carried up to the roof through vent lines.
Bathroom ventilation fan duct routing routing a bath vent duct down out or up through an attic or roof out.
Drain pipes take the wastewater to the soil stack.
Vent under the floor to get outside.
This article describes routing bath exhaust fan duct upwards through an attic or roof space or downwards through a floor or crawl space.
More powerful fans also tend to produce more noise.
A vent is an important part of a drain and it performs two functions.
Previously i had helped a friend install an exhaust fan and we routed the vent out to the soffit.
The front wall will be half high then glass block this is the wall that the toilet will be on and no vent pipe will be possible because of the glass block.
If the drain line runs away from the wall where you want the vent use a reducing y and a 45 degree street elbow to point the vent line toward the wall.
Since the joists run the wrong way there is a bedroom next to the bathroom.
The horizontal vent pipe runs right next to the closet.
How to vent a drain out a side wall.
When remodeling bathrooms we always plan to install all plumbing lines inside interior walls and avoid running plumbing in exterior walls due to the reality of the pipes freezing.
I can only run the 3 waste line in one direction and that will be between the floor joists.
We re all taught not to run plumbing in exterior walls.