Chimney thru metal roof

jeff_t Posted By jeff_t, Feb 2, 2013 at 4:15 PM

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  1. jeff_t

    jeff_t
    Minister of Fire 2.
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    Sep 14, 2008
    4,151
    1,101
    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.
     
  2. charly

    charly
    Guest 2.
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    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 2.
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    Nov 3, 2006
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    You are going to install a storm collar on that right?
     
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  4. jeff_t

    jeff_t
    Minister of Fire 2.
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    Sep 14, 2008
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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 2.
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    Staff Member

    Nov 18, 2005
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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.
     
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  6. webby3650

    webby3650
    Master of Fire 2.
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    Sep 2, 2008
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    Indiana
    You definitely need a storm collar, not an option.
     
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  7. Hogwildz

    Hogwildz
    Minister of Fire 2.
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    Nov 3, 2006
    7,790
    1,533
    Loc:
    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 2.
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    Staff Member

    Nov 18, 2005
    61,607
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    I'm guessing he meant here:

    notch.JPG
     
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