Greetings, This is the first time I have seen open plumbing vents in attic and btw no roof exhaust vents either It was constructed 2014.
My training tells me this would not be ok because of moisture, odors, unhealthy gas etc not to mention ability for insulation and mice to go down.
It is in Missouri, which I think they may allow AAVs on a limited basis but I don’t see how this is ok at all.
I am also confused about the two big pipes in the background in the inaccessible area of the attic.
Please help. Thanks!!!