Run Bathroom Vent Along Wall

The horizontal vent pipe runs right next to the closet.

Run bathroom vent along wall.

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. How to vent a drain out a side wall. Anchor the drainpipe with straps. A drainpipe attached to the p trap goes into an opening in the wall.

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. Ductwork is what will connect the fan to the outside. For a 1 1 2 inch vent pipe a 2 1 2 inch hole is sufficient.

The first is to allow air into the drain line to replace the vacuum created by flowing. To determine which size fan to buy for your bath multiply the room s square footage by 1 1. The bathroom here is below an accessible attic so tom ran the exhaust duct across the attic and out a gable end. 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.

The location of the bathroom will determine how extensive the ductwork will be. Cut a smaller opening in the ceiling for the vent pipe. No matter the location of the bathroom you can vent the exhaust fan through the wall. This article describes routing bath exhaust fan duct upwards through an attic or roof space or downwards through a floor or crawl space.

Drain pipes take the wastewater to the soil stack. Do let your fan run long enough. 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. 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.

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. A vent is an important part of a drain and it performs two functions. Bathroom ventilation fan duct routing routing a bath vent duct down out or up through an attic or roof out.

Through the stack sewer gases are carried up to the roof through vent lines. Bathroom vent fans are rated by how many cubic feet of air they can move in one minute known as the cfm rating. Previously i had helped a friend install an exhaust fan and we routed the vent out to the soffit.