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Old 12-22-2011, 10:04 PM   #1
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Joint between chimney and wall


I have searched the internet but couldn't find a definite answer.

What is the correct way to seal the joint where a wall meets a brick chimney? The wall will be 1/2" sheathing -> house wrap -> vinyl siding.

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Old 12-22-2011, 10:14 PM   #2
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Joint between chimney and wall


Can you post a picture.

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Old 12-22-2011, 10:23 PM   #3
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Joint between chimney and wall


The sure way is to notch a groove into the brick that metal flashing inserts into and goes under the vinyl.
The lesser reliable way is to just run a good bead of 100% silicone under the vinyl corner trim and press it onto the brick; or a combination of the two.

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Old 12-22-2011, 10:25 PM   #4
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Joint between chimney and wall


None available right now but I found this and it's pretty much the same minus the vinyl siding part.

http://www.flickr.com/photos/2801617...57605835178607


(example^) not actually mine.

I currently do not have the vinyl siding up and it's just the sheathing and housewrap.

Last edited by REXAMUS; 12-22-2011 at 10:28 PM.
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Old 12-22-2011, 10:53 PM   #5
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Joint between chimney and wall


J-Channel would be the more professional way of doing it.
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Old 12-22-2011, 11:02 PM   #6
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Joint between chimney and wall


that chimney is not functioning right looks like its condensating inside...is there a flue linner in there...if not needs one...
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Old 12-22-2011, 11:04 PM   #7
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Joint between chimney and wall


Quote:
Originally Posted by ben's plumbing View Post
that chimney is not functioning right looks like its condensating inside...is there a flue linner in there...if not needs one...
Ben, that picture as the OP stated is for an example of the project at hand. Not the actually structure that the OP owns, or in the process of working on, as they stated.
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Old 12-22-2011, 11:04 PM   #8
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Joint between chimney and wall


Quote:
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that chimney is not functioning right looks like its condensating inside...is there a flue linner in there...if not needs one...
That's not their chimney.
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Old 12-22-2011, 11:06 PM   #9
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Joint between chimney and wall


Quote:
Originally Posted by gregzoll View Post
Ben, that picture as the OP stated is for an example of the project at hand. Not the actually structure that the OP owns, or in the process of working on, as they stated.
yea by bad.....up to long thanks..
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Old 12-22-2011, 11:07 PM   #10
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Joint between chimney and wall


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That's not their chimney.
yep by bad been up to long thanks..
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Old 12-22-2011, 11:12 PM   #11
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Joint between chimney and wall


ohttp://www.certainteed.com/products/trim/trimboards/317641f
I like to use this instead of J molding.
Much more ridged so it's less likly to flex and crack the caulking. It's
also wider to cover the gap between the wall and the chimney.
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Old 12-23-2011, 03:38 AM   #12
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Joint between chimney and wall


So j-channel is sufficient enough? That's what I planned on using I just thought maybe I was missing something. Thanks!
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Old 12-23-2011, 04:19 AM   #13
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Joint between chimney and wall


So am I wrong (post #3)?
(I didn't mean "corner" trim in the alternative method. I meant whatever you call the finishing piece of vinyl you would use to cap the end of the siding whenever it butts into something. I guess it's in the shape of a "j". But since water can get behind "j" channel, isn't my first solution correct?)

Last edited by titanoman; 12-23-2011 at 04:29 AM.
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Old 12-23-2011, 07:50 AM   #14
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Joint between chimney and wall


As long as the flat is long enough to go past the siding. Then again, if water does get in back, it should just roll down the house wrap and should not get behind, if everything is done correctly.
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Old 12-23-2011, 09:42 AM   #15
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Joint between chimney and wall


End the vinyl siding into "J", channel - "channel", against the bricks.
You can caulk between the bricks and the "J" channel -
"Quad", "Solar Seal", "Vulkem".
Don't caulk inside the "J" channel - ("channel to siding").
Make sure all surfaces are dry, clean, and frost-free - before you do any
caulking!

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