2nd Floor Bathroom Venting

As water goes down a drain air is needed to equalize the pressure in the drain line.

2nd floor bathroom venting.

Use a layout square or framing square to draw the. The master bathroom and the 2nd bathroom vent through the roof and through the same opening. For 1 the furnace fan running all day with the a c on might solve some milder heat trap problems for your second floor. Use the reference hole as a landmark to transfer your measurements from the attic to the ceiling.

The 2nd bathroom vent drips on the floor and is ruining the ceiling. If the drain lines in your home have poor venting as in figure a for example water rushing down the drains will pull water from nearby p traps. If the new bathroom is on the first floor you can probably just tie into the house s main drain line in the basement or crawlspace below. Doing a second floor major remodel.

If the new bathroom is on the second floor the bathroom s main drain will have to travel through the wall on the first floor and down to the basement or crawlspace. Divide the house into two zones one for each floor. Also notice the bathroom sink s individual vent tee s right into the toilet s individual vent. Adding a bathroom to the second floor of your house.

The same holds true for plumbing vent pipe. Mark the ceiling back in the bathroom measure the inside dimensions of the vent fan s intake port to determine what size hole you need. The 2 pipes one a 4 master and the other a 3 2nd do not go through the ceiling but into a common box that goes through the roof. In the ipc use a 1 5 sanitary tee upside down or in the upc use a 2 x2 x1 5 san tee upside down to make this connection.

This is the purpose of a venting system. That s done with the appropriate sized sanitary tee that s upside down. Add a small return vent duct to each room on the second floor.