He says its his roof vent. Wouldn't be an issue.So long as it’s not being exhausted into the attic you’re good. Are you talking the main plumbing vent or near the opening in the attic? Or exactly what is the route your exhaust is taking? Venting into the attic even near an opening is not advisable due to mold issues.
Unless you are not running it through a carbon filter or two. People will follow their noses. I know I would. Not to rip anyone off though and those sorts are definitely around.He says its his roof vent. Wouldn't be an issue.