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Dome cladding - Forno Bravo Forum: The Wood-Fired Oven Community



I'm Peter Reinhart! Ask Me Anything! Monday, February 15, 2016 7:00-8:00 pm EST

To kick off our AMA feature, we have invited author, chef and master bread maker and host of Pizza Quest, Peter Reinhart, to be our first host! Peter will be in the Forum on Monday, February 15th, from 7:00 - 8:00 pm EST. If you are unable to be online during the live session, you can post your questions in the sticky post. Peter will answer those questions during the live session on February 15th. You can view Peter's answers to your questions as well as what happened during the live session in the session thread.

Ask Me Anything New Forum Feature

You will notice a new forum at the top of the main page called, "Ask Me Anything". This forum will be used for live one hour "Ask Me Anything" (AMA) sessions hosted by people who are knowledgeable in different areas pertaining to wood fired ovens. How it works:
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Dome cladding

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  • Dome cladding

    In the process of building a wood oven in my back garden in Mere, uk. Have gone for the dome style, and have now got to the point where the brick dome is complete, but with large open joints to the outside of the dome. I was intending to render the dome and fill the joints before insulating, but could anyone recommend a suitable material please. Joints are too wide for fire cement (25mm in places).

  • #2
    Re: Dome cladding

    25mm is about an inch, that's a pretty large gap. I think your best bet would be a home brew mortar with a larger aggregate to help with the bigger gap. As for how big an aggregate, I would leave that to the masonry experts. Tom(Tscarborough) would be my first choice to field this question.


    • #3
      Re: Dome cladding

      You can use the refractory cement, you just need to add grog to it. Take all of your firebrick scraps and beat them into pieces no larger than 1/3 of your gaps ranging down to dust. Discard the dust and use everything 1/16" up to (probably) 1/4 or 3/8". If you are using a high quality dry refractory, you can add up to 1/3 by volume of the grog to make refractory concrete.


      • #4
        Re: Dome cladding

        Here is what it looks like (I had red and yellow firebrick scraps) in the bucket and in the concrete:


        • #5
          Re: Dome cladding


          I had the same question and I basically did what Tscar said. I took a bunch of scrap fire brick, wrapped them in an old towel and smashed them with the blunt end of a digging bar. Then I mixed them in with the home brew and filled my outside gaps and did a little cladding on the dome.

          I used the smalled scraps in the gaps and the larger ones for the cladding. I cut the corner off a freezer zip lock bag and used it with a runnier homebrew for filling my dome gaps. Both areas held up well and have very few if any shrinkage cracks. Very solid.

          I am curing my dome now. With all the help from the crew on here it has turned out much better then I ever thought it would.

          Good luck.

          "Leave the gun. Take the cannoli." - Peter Clemenza


          • #6
            Re: Dome cladding

            Brilliant, many thanks to shuboyje, Tscarborough and dino69... Great advice.. Will crack on with dome this weekend. Very grateful