Can Plumbing Go In An Exterior Wall. Learn how you can successfully install plumbing in exterior walls. The roof vent is directly above this bathroom.
One subsystem brings freshwater in, and the other takes wastewater out.
My plumber says that he would have to open up a wall to see if he can figure it out. Can't figure out how to pm you, but if you want to. Personally, i'd probably insulate that wall with spray foam just to be extra sure. Today, it's usually not the best ventilation strategy natural ventilation occurs when there is uncontrolled air movement or infiltration through cracks and small holes in a home—the same.