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Old 08-28-2012, 10:35 AM   #16
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Looks Like there might be a fitting up there make sure that you are not re-venting other fixtures, if you are the job is just a little more difficult , if you donít want to disturb the pipe going through the roof, get a cast iron riser clamp.. clamp the pipe then build a wood support to secure your pipe in its place, then you can cut and go with the transition. If you have a lead flashing on the roof you should be able to pull the pipe out of the flashing may take some effort if bulled in place. Pipe inside pipe will just open up a whole new can of worms. Depending on your local code you must have minimum of one 3Ē or larger vent in the system.

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Old 08-28-2012, 12:05 PM   #17
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I would do exactly as Eplumber has suggested or I would use furring strips to help it all fit into the wall.

I would not go smaller than 3" PVC though for the primary vent stack. Just my .02.
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Old 09-01-2012, 08:16 AM   #18
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ok, guys. i looked at the roof. it looks like i have a lead vent stack flashing. that was covered with a plastic or rubber vent stack flashing. this flashing is pulling away from the shingles on the lower side.

i bought a piece of 3" 10' pvc , a coupler, and 2 different vent stack flashings = plastic with rubber seal, and metal with rubber seal, both OATEY.

what issues should i expect & look for if i decide to replace all of this ? i am most worried about messing with the shingles. they look to be in basicly good shape. but i have never done anything like this.
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Old 09-01-2012, 08:21 AM   #19
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this is the closest my camera would zoom.
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Old 09-01-2012, 11:26 AM   #20
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Quote:
Originally Posted by Fix'n it View Post
ok, guys. i looked at the roof. it looks like i have a lead vent stack flashing. that was covered with a plastic or rubber vent stack flashing. this flashing is pulling away from the shingles on the lower side.

i bought a piece of 3" 10' pvc , a coupler, and 2 different vent stack flashings = plastic with rubber seal, and metal with rubber seal, both OATEY.

what issues should i expect & look for if i decide to replace all of this ? i am most worried about messing with the shingles. they look to be in basicly good shape. but i have never done anything like this.
You might consider posting this question to the roofers. I've replaced jacks before and it's pretty straight forward. Putting in the pipe is easiest if done with two people. One on the roof holding the jack in place while the other person inserts pipe from below. I would use the metal roof jack- but thats just me..
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Old 09-01-2012, 12:40 PM   #21
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Pipe exiting the roof looks a little short?
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Old 09-03-2012, 07:43 AM   #22
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ok. the new pvc is in, kinda. i bought a 3" to 4" adapter = not the right one. i need a 3" to 5", idk if they even make one.
so i may have to go 3-4" then a 4-5" pvc. then a coupler to the aprox 2' of steel pipe i left in the roof. currently, the new pipe is ran inside the old pipe. thankfully, no rain expected.

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