Kevinjm4
Member
This already has existing waste and vent pipes installed (they haven’t poked through roof just yet thankfully), however as in an earlier thread they are most likely wrong. It contains two horizontal vents under the floor. I will also post a drawing to the best of my ability how they are currently laid out. I’m willing to fix before moving forward with my project.
I would prefer to vent only on the right wall, second option would be only the left wall, third and the “if necessary” option would be venting pipe going up both left and right walls. My concern basically is limiting roofing penetrations, but not opposed to 2 penetrations here if needed. Routing one of the vent pipes in the rafters MAY be an option but it’s a vaulted ceiling (no attic) so it’d have to be bored through the 2x6 roof rafters.
The 4x6 beam may be a problem. It is a lot easier to get around or to notch the bottom of it further down the room closer to the bottom/south wall...toward the main line/concrete footer. As a way to explain the height of the 4x6, it is under 2x6 joists, and parallel and at the same elevation as the 3” toilet drain line up until the concrete footer, which is where that same drain line drops fully below - in elevation - the beam. The 3” toilet drain may be able to be moved to the left side of the beam after checking my slope and amount of room down there)
Sorry for my iffy measurements in places (4’ or 5’) I don’t know EXACTLY (given p-trap, etc.) where the measurement needs to be taken from...
EDIT: 3” toilet drain can probably be routed onto the left side of the beam immediately after toilet flange
I would prefer to vent only on the right wall, second option would be only the left wall, third and the “if necessary” option would be venting pipe going up both left and right walls. My concern basically is limiting roofing penetrations, but not opposed to 2 penetrations here if needed. Routing one of the vent pipes in the rafters MAY be an option but it’s a vaulted ceiling (no attic) so it’d have to be bored through the 2x6 roof rafters.
The 4x6 beam may be a problem. It is a lot easier to get around or to notch the bottom of it further down the room closer to the bottom/south wall...toward the main line/concrete footer. As a way to explain the height of the 4x6, it is under 2x6 joists, and parallel and at the same elevation as the 3” toilet drain line up until the concrete footer, which is where that same drain line drops fully below - in elevation - the beam. The 3” toilet drain may be able to be moved to the left side of the beam after checking my slope and amount of room down there)
Sorry for my iffy measurements in places (4’ or 5’) I don’t know EXACTLY (given p-trap, etc.) where the measurement needs to be taken from...
EDIT: 3” toilet drain can probably be routed onto the left side of the beam immediately after toilet flange
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