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Old 04-10-2013, 08:44 AM   #1
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chimney cap


Our roofer told us we need chimney caps. On one of our two chimneys, some of the brick near the top is chipping off a little bit. Apparently that's from water getting in and freezing?

My understanding is that a chimney cap consists of a metal hood for the chimney as well as a concrete/mortar cap that is sculpted to divert water away from the chimney.

It's an older house, and I have to assume it had one there, so the job will involve chipping away the old mortar etc?

I am getting some quotes so I wanted to get educated before they come out. Am I understanding things properly? Any more advice?

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Old 04-10-2013, 09:01 AM   #2
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chimney cap


Got a picture of what you have now?
If you have a clay tile liner the cap just slides over tile and is held in place with 4, screws.
The crown is just some morter mix.
Same with the tuck pointing to fix the bricks.

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Old 04-10-2013, 09:25 AM   #3
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chimney cap


Quote:
Originally Posted by joecaption View Post
Got a picture of what you have now?
If you have a clay tile liner the cap just slides over tile and is held in place with 4, screws.
The crown is just some morter mix.
Same with the tuck pointing to fix the bricks.
It's actually pretty high up above the roof and I am not good at getting up there. Which is why I am getting quotes, but it of course makes me a bit uneasy that I can't see it.

Thanks for the advice. I am getting 3 quotes, I guess I'll just see what these guys say that I need.

I just googled 'tuck pointing' so now I know what that means!
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Old 04-10-2013, 11:23 PM   #4
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chimney cap


Quote:
Originally Posted by joecaption View Post
Got a picture of what you have now?
If you have a clay tile liner the cap just slides over tile and is held in place with 4, screws.
The crown is just some morter mix.
Same with the tuck pointing to fix the bricks.
The crown is not "just some mortar mix", unless of course you want to replace the crown every few years. This kind of mentality is why so many chimneys fail.

A decent chimney cap/crown is cast concrete, and will have at least 1.5" overhang over the brick veneer, more is better.

More than you'll ever want to know about the subject:

http://www.masonryconstruction.com/I...68-1375172.pdf
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Old 04-11-2013, 08:32 AM   #5
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Originally Posted by jomama45 View Post
The crown is not "just some mortar mix", unless of course you want to replace the crown every few years. This kind of mentality is why so many chimneys fail.

A decent chimney cap/crown is cast concrete, and will have at least 1.5" overhang over the brick veneer, more is better.

More than you'll ever want to know about the subject:

http://www.masonryconstruction.com/I...68-1375172.pdf
Wow that's helpful!!! Thanks so much. Now I know what to expect of whoever I hire and I can ask the right questions!
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