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Chimney flashing - Forno Bravo Forum: The Wood-Fired Oven Community

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Chimney flashing

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  • Chimney flashing

    Hello,

    I have an issue with my chimney. I have not put the roof on my gabled enclosure yet, but when I do the chimney will exit right in the middle of the ridge at the top of the roof. In other words, the roof slopes down on both sides of the chimney. I am using a duravent, but all the flashings I see from Simpson deflect one way only, not down both sides. Has anyone dealt with this problem? Do I need to see a metal fabricator or can I get away with something else?

    Thanks for any input.

  • #2
    Re: Chimney flashing

    I don't have the answer to your question, but duravent has phone support:

    (800) 835-4429
    My geodesic oven project: part 1, part 2

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    • #3
      Re: Chimney flashing

      Hi Fred,
      I had a similar situation with a slow combustion space heater installation. I got around the problem by sealing and rivetting an angled aluminium strip around the outer insulated metal sleeve and then moulding (through using a lead hammer/dolly) a piece of flushing lead to fit the contours of the roof tiles either side of the gable. It was then carefully slid down the chimney, dollied back to the metal (as it the hole needed to be slightly larger to fit over the sealed aluminium ring) and silicon sealed. Depending on what type of silicon you use, some will withstand up to 850į temperatures before failing.
      Hope this helps.

      Regards.

      Neill
      Prevention is better than cure, - do it right the first time!

      The more I learn, the more I realise how little I know


      Neillís Pompeiii #1
      http://www.fornobravo.com/forum/f8/n...-1-a-2005.html
      Neillís kitchen underway
      http://www.fornobravo.com/forum/f35/...rway-4591.html

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      • #4
        Re: Chimney flashing

        I love lead flashing - you can't do a classic slate roof without it. Unfortunately it's illegal in the US. The local junkyard once offered to sell me a bunch of used lead flashing (to melt for clock weights) if I paid cash, no reciept.
        My geodesic oven project: part 1, part 2

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        • #5
          Re: Chimney flashing

          Interesting, it is still quite legal over here and used here for roof flushing. Sorry for the mis information, but a silicon based rubber vent seal could also be used if you can find one large enough to accommodate the vent.
          Prevention is better than cure, - do it right the first time!

          The more I learn, the more I realise how little I know


          Neillís Pompeiii #1
          http://www.fornobravo.com/forum/f8/n...-1-a-2005.html
          Neillís kitchen underway
          http://www.fornobravo.com/forum/f35/...rway-4591.html

          Comment

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