Run Bathroom Vent Along Wall

The bathroom here is below an accessible attic so tom ran the exhaust duct across the attic and out a gable end.

Run bathroom vent along wall.

No matter the location of the bathroom you can vent the exhaust fan through the wall. Bathroom vent fans are rated by how many cubic feet of air they can move in one minute known as the cfm rating. Bathroom ventilation fan duct routing routing a bath vent duct down out or up through an attic or roof out. In all cases the ducting needs to conduct the exchaust to the building exterior and needs to terminate in an animal proof vent cover.

Let the bathroom vent fan run throughout your bath or shower and just as importantly leave it on for at least 15 minutes after you re finished to fully air out. Guide the vent pipe up through the hole and into the attic or room above and slip its lower end into the fitting at the floor. Previously i had helped a friend install an exhaust fan and we routed the vent out to the soffit. For a 1 1 2 inch vent pipe a 2 1 2 inch hole is sufficient.

Drain pipes take the wastewater to the soil stack. Cut a smaller opening in the ceiling for the vent pipe. To determine which size fan to buy for your bath multiply the room s square footage by 1 1. 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.

Through the stack sewer gases are carried up to the roof through vent lines. The location of the bathroom will determine how extensive the ductwork will be. A vent is an important part of a drain and it performs two functions. 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.

Toilet vent option 1. 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. Since the joists run the wrong way there is a bedroom next to the bathroom. Anchor the drainpipe with straps.

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. How to vent a drain out a side wall. If the toilet drain does not connect directly to a vent you must find another way to vent it. A drainpipe attached to the p trap goes into an opening in the wall.

You may be able to configure a short route. The first is to allow air into the drain line to replace the vacuum created by flowing. The horizontal vent pipe runs right next to the closet.