• Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment.

    We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues.

    We promote the EFFICIENT, RESPONSIBLE, CLEAN and SAFE use of all fuels, whether renewable or fossil.

Treenoob

New Member
Dec 31, 2017
29
Maine
hello to all,
Recently discovered that I had a leak coming down my chimney pipe( stainless double insulated 6 inch pipe/ 30 foot) and discovered that the calking has failed around my storm collar. Desided to use leak stopper( heavy tar plastic type material) I was wondering if it is safe to use as it says it’s combustible. Wasn’t sure how hot the exterior actually got up there. Any and all opinions and advise are greatly appreciated!
 
Don't use that product on chimney pipe. Clean the seam well, then put on a generous bead of a good quality silicone adhesive sealant like GE Silicone II. Finger trowel it into the seam all the way around.
 
hello to all,
Recently discovered that I had a leak coming down my chimney pipe( stainless double insulated 6 inch pipe/ 30 foot) and discovered that the calking has failed around my storm collar. Desided to use leak stopper( heavy tar plastic type material) I was wondering if it is safe to use as it says it’s combustible. Wasn’t sure how hot the exterior actually got up there. Any and all opinions and advise are greatly appreciated!


I suspect the chimney is quite cool by the time the air exits the chimney. That being said I would have opted for a high temp silicone to reseal the storm collar.
 
It doesn't get hot enough to need high temp silicone. It's the weather it needs to stand up to. You want a good adhesive bond and something that is designed for exposure to the elements and UV.
 
Well I’m currently in the process of cleaning the small amount of tar off of the top of my chimney pipe and cut off the old storm collar. Going to replace the stone color now and going to tour the base of it to my Metal roof and then silicone the top. Is this set up safe? Beginning to think that maybe I didn’t have to do any of this LOL
 
Well I’m currently in the process of cleaning the small amount of tar off of the top of my chimney pipe and cut off the old storm collar. Going to replace the stone color now and going to tour the base of it to my Metal roof and then silicone the top. Is this set up safe? Beginning to think that maybe I didn’t have to do any of this LOL


Replace the storm collar** going to tar the base**
 
Replace the storm collar** going to tar the base**
Before starting, can you post some pictures of the current chimney flashing and storm collar?
 
Before starting, can you post some pictures of the current chimney flashing and storm collar?



The deed has been done, please let me know if this looks alright as I’ve never done this before.
 

Attachments

  • 9BF75859-FA59-4F12-80FC-6912B0391648.jpeg
    9BF75859-FA59-4F12-80FC-6912B0391648.jpeg
    159.5 KB · Views: 376
  • 7652575C-FDB6-4D3A-B9B1-AF14DCAAA1EA.jpeg
    7652575C-FDB6-4D3A-B9B1-AF14DCAAA1EA.jpeg
    132 KB · Views: 301
  • 6CF38C14-CEFE-4DEA-B9C4-AF74CF2FB6EC.jpeg
    6CF38C14-CEFE-4DEA-B9C4-AF74CF2FB6EC.jpeg
    125.1 KB · Views: 310
Without seeing the flashing before it got tar goobered it's hard to say whether the flashing was done correctly or not. Tarring is normally not needed on top. Here is an Excel flashing install before the storm collar went on.
 

Attachments

  • Excel_metal_roof_flashing.jpg
    Excel_metal_roof_flashing.jpg
    13.3 KB · Views: 413
Outstanding, however it wasn’t the flashing that was causing a leak, it was the storm collar( silicone seal had broken) I tatted the sh#t out of the bottom as well to prevent future snanaigans. Tarred the chimney, And was advised against it so I got a new collar and cleaned off majority of the tar around the pipe itself. I’m just wondering if this looks safe to you guys?
 
What compound was used to seal the storm collar?
 
Yeah i hate to see tar on flashing like that. It doesnt hold up long and then gets tarred again and again. Usually by the time we grt called to actually fix it there is an inch of tar built up on it and it takes a few hours to clean it off before we can even see what needs done.
 
Looks like you could benefit from a cricket to channel the water around your stack, so the tar and caulk don't have to do the brunt of the work.
 
Yeah, if it isn’t broken, don’t plan on fixing it, the flashing has never given me issues. Just didn’t know the proper way to set up the storm collar.
 
LOL, no sheet metal, although somewhere, you no know one exists. Reminds me of something you'd see on the Red Green show.
 
Thanks for the constructive criticism my man
I already told you what i thought about the use of tar. I thought you were joking. I hope you were.
 
Treenoob, something like this, you would have to modify it to your application.cricket.jpg
 
Last edited by a moderator:
Well my computer skills suck, but you get the point, Treenoob.
 
Well my computer skills suck, but you get the point, Treenoob.
Those work pretty well for snow. But there are flashings with a bit of a cricket built in that helps with water also. But no tar on it.