Plumbing vent, any chance this would pass code?

[ROBERT BETZ]

I'm asking here because it would take like 3 hours between travel and wait time to get
answer from building dept and hope to save time and potential embarrassment
there by embarrassing myself here
This existing 1.5" vent was probably installed 1973 and may or may not have been inspected then.
its for a 2" kitchen sink and dishwasher drains. instead of the normal roof flashing it just goes
up into a chimney/ or flu vent flashing. see pics. it tops out about 10" above the roof inside the
flu flashing/vent, sure looks weird just to be kind of floating there. at least its 10" above roof and actually roof ridge line. that flu vent keeps it out of the weather, its in the garage all open and exposed.

just trying to save another hole in the roof and the time to put in a normal vent roof flashing if
I can.

 

[ImOld]

First things first! Just who is doing that remodeling and why are those holes/vents in the roof to begin with?

 

[Sponsor]

 

[Sylvan]

Never will pass an inspection as it is

 

[ROBERT BETZ]

thanks for the replies, not sure who did the work, it was evidently their attempt to provide the vent exit through the roof,
sylvan, you say as it is, does that mean it can be somehow modified from its present form to work? again just trying to figure
if could be usable, or just abandon it completely and put in new hole, new flashing that I know will be code. I imagine I would
just leave the existing vent flashing as it seems to do no harm other than just be an unused flu flashing.
I am doing the work as owner/builder

 

[Reach4]

I think the big cylinders are attic ventilation vents.

 

[ROBERT BETZ]

this is in the garage, and I think I just figured what they were trying to do, I found the remants
of a 2nd vent, so pretty sure they were trying to terminate the 2 vents in the same flu/vent flashing,
to save the work of installing 2 separate roof flashings. At this point I think I will just install a new standard flashing,
its open in the garage for easy access and the roof shingles are only 2 years old so should be easy enuf
to work with them.

 

[hj]

The code says it has to terminate above the roof, NOT how it does it. I do not see why THIS does no conform to the letter of the law.

 

[WorthFlorida]

Other than venting, those caps could still allow wind driven rain into the garage and sewer gas. What probably won't pass is the roof vent covers. Should use a traditional vent boot.

https://www.homedepot.com/p/Perma-B...D-Vent-Pipe-Black-Color-PBR-312-2BK/202581368

 

[Sylvan]

NYC plumbing code is the one I used and it stated Vent terminal cannot be placed in a flu or chimney or elevator shaft or duct and it also states how far from any AC units or door ways or adjoining windows

I always installed a 4 " vent terminal at least 5 feet above the roof although the new code allows it to be 24 above the roof if the roof is for weather protection only

 

[Tuttles Revenge]

Theres a good chance that the roof was redone and the roofers used that thing because they didn't have a roof jack.

As HJ mentions.. Letter of the law. Tho maybe not the spirit of the law.

if the roof vent is done properly and is staying the plumbing vent should be re-routed to another location and a proper roof flashing installed.

 

[Dj2]

It looks like a big mistake to re-roof with the best shingle roof on the market... BEFORE doing the vents.
The inspector is going to tell you that too.
12"-16" above the roof is common.