I am new here. Hope someone here can answer my question. I am constructing a bathroom within the existing footprint of my home. I am wondering how far from a window a vent stack can be. There is a window nearly directly below where I want to vent. The vent will of course be above the roof, but I need to know how far from the edge of the house it can be. The reason I am concerned is that I have a clay tile roof, which is nearly impossible to walk on. I would like to be install the flashing for the vent by standing on a ladder leaned against the house. But if I get too far away from the roof's edge I cannot do this. Do any codes in California prohibit me from having a vent poke through the roof, say 2-3 feet from the edge of my roof? My city uses California code and doesn't have extra rules.