Vent stack venting through roof of 1st floor dormer

[ChrisBuzzard]

Hello, if someone could answer a question for me I would really appreciate it. We are building an a-frame house that has a dormer off to one side with a shower and sauna in it. It would simplify things greatly if I could run the vent stack for all the 1st floor plumbing through this dormer roof. Is it code to do so instead of running the vent stack through the the 2nd story and attic of the main part of the house?

IPC Code

 

[Terry]

904.5
Location of vent terminal. An open vent terminal from a drainage system shall not be located directly beneath any door, openable window, or other air intake opening of the building or of an adjacent building, and any such vent terminal shall not be within 10 feet (3048 mm) horizontally of such an opening unless it is at least 2 feet (610 mm) above the top of such opening.

 

[Sponsor]

 

[ChrisBuzzard]

So that's a yes as long as a window is at least 10' away?

 

[Terry]

So that's a yes as long as a window is at least 10' away?

Yes, that allows for dispersal. A window that opens is what they worry about.