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Chimney thru metal roof

Post in 'The Hearth Room - Wood Stoves and Fireplaces' started by jeff_t, Feb 2, 2013.

  1. jeff_t

    jeff_t Minister of Fire

    Joined:
    Sep 14, 2008
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    Loc:
    SE MI
    Finally got around to it. Easy peasy using the previously mentioned Excel flashing. This one fit right under the ridge cap. A few screws and a bunch of silicone to finish up.

    2013-07-14_12-22-41_32.jpg

    Be aware that it doesn't fit Supervent pipe anywhere near tight. That gap took a bunch of silicone to fill. It is also pretty short, and since this is a weekend place, I am anticipating snow up past the flashing. We'll find out how good I did sealing it up.

    I have some pics from webby3650 from one of his installs, showing how he cut it into the roofing. If anyone is interested, I'll try to repost them.

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  2. charly

    charly Guest

    They make a laser tool that fits right in your stove thimble or chimney pipe, projects a laser dot in the center on you roof or ceiling, so you know exactly where to cut.. i think I paid 100 dollars for mine, comes with 4-6 and 8 inch adapters . Takes the guess work out of where to cut the hole.
  3. Hogwildz

    Hogwildz Minister of Fire

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    Next to nuke plant Berwick, PA.
    You are going to install a storm collar on that right?
    Lumber-Jack likes this.
  4. jeff_t

    jeff_t Minister of Fire

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    I did. After I notched out the bottom of the flashing, screwed it down, and caulked it. I'm not sure it's totally necessary since this flashing isn't ventilated, but it is an extra measure of protection.
  5. begreen

    begreen Mooderator Staff Member

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    This has nothing to do with ventilation. A storm collar that is silicone sealed on the top rim is essential. Without it you will see leaks.
    PapaDave likes this.
  6. webby3650

    webby3650 Master of Fire

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    You definitely need a storm collar, not an option.
    PapaDave likes this.
  7. Hogwildz

    Hogwildz Minister of Fire

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    Next to nuke plant Berwick, PA.
    Where did you notch the flashing at? And why?
    Storm collars are standard procedure.
    Without them, as pointed out, you are very vulnerable to leaks.
    And the collar must be caulked with good caulk where it meets around the pipe.
  8. begreen

    begreen Mooderator Staff Member

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    I'm guessing he meant here:

    notch.JPG

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