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Big screw up needs correction - Forno Bravo Forum: The Wood-Fired Oven Community

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New Forno Bravo Forum Feature

Forno Bravo Forum Community,

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:
- Each AMA will have a "sticky" thread where the community can post questions they would like answered during the live session. This will allow everyone to participate even if you can't be online for the live session. These questions will not be answered by the host until the live AMA; if you need an answer quickly, you should post it in the appropriate Forum area for the community to respond.
- Another thread will be posted for the live AMA. Registered users who are logged in during the live session can interact with the host by asking questions and receiving responses.
- The live thread will remain in the AMA forum to view after the session.

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.

We hope you enjoy this new feature! Please let us know if there is a topic that you'd like to have as an AMA and we'll look for a host!

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Big screw up needs correction

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  • Big screw up needs correction

    Poured a 3.5ft x 3.5ft x 4 inch reinforced slab and now realized with all the insulation needed for a 36" pompeii it is way too small. However, if I built it with the slab I have now and just create a reinforced 6 inch overhang all around on the structural slab where most of the insulation will rest, would this be feasible? Or should just extend the base?

  • #2
    Re: Big screw up needs correction

    Originally posted by jay29 View Post
    Poured a 3.5 x 3.5 x 4 inch reinforced slab and now realized with all the insulation needed for a 36" pompeii it is way too small. However, if I built it with the slab I have now and just create a reinforced 6 inch overhang all around on the structural slab where most of the insulation will rest, would this be feasible? Or should just extend the base?
    Pictures always help to get better answers, but to your questions....

    A slab extension could work, but you need to dowel into the existing slab with rebar and provide support. A large angle iron support (4"-6") underneath the shelf would be good too... ( I'm assuming you have a block stand ).. then your finish work would have to be bumped out..depending what you want to do.
    Old World Stone & Garden

    Current WFO build - Dry Stone Base & Gothic Vault

    When we build, let us think that we build for ever.
    John Ruskin

    Comment


    • #3
      Re: Big screw up needs correction

      I just have the slab in place. I am ready to mortar and cement the block stand permanently. I think I will use rebar in the block stand and fill in all the holes with concrete for added support. I don't think a six inch reinforced overhang is too terrible, but I have no concrete experience.

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      • #4
        Re: Big screw up needs correction

        Originally posted by jay29 View Post
        I just have the slab in place. I am ready to mortar and cement the block stand permanently. I think I will use rebar in the block stand and fill in all the holes with concrete for added support. I don't think a six inch reinforced overhang is too terrible, but I have no concrete experience.
        Oh, I thought you were talking about the slab supporting the oven itself, not the slab for the stand.

        So, were are you planning to put the extension, on the base slab or the slab for the oven? Either way, grouting all the cells of the block isn't really necessary. If you are worried do the corners and one in between.
        Old World Stone & Garden

        Current WFO build - Dry Stone Base & Gothic Vault

        When we build, let us think that we build for ever.
        John Ruskin

        Comment


        • #5
          Re: Big screw up needs correction

          Originally posted by stonecutter View Post
          Oh, I thought you were talking about the slab supporting the oven itself, not the slab for the stand.

          So, were are you planning to put the extension, on the base slab or the slab for the oven? Either way, grouting all the cells of the block isn't really necessary. If you are worried do the corners and one in between.
          I'm just thinking about extending the concrete hearth the oven will sit on, extending outwards six inches past the concrete blocks all around for additional space for insulation.

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          • #6
            Re: Big screw up needs correction

            O.K. Then most definitely dowel and support your extension. You can fill the corners with grout as mentioned and also the top course..forming a bond beam and something solid to anchor your angle iron too.

            Just one way to do it.
            Last edited by stonecutter; 04-23-2013, 03:16 PM.
            Old World Stone & Garden

            Current WFO build - Dry Stone Base & Gothic Vault

            When we build, let us think that we build for ever.
            John Ruskin

            Comment


            • #7
              Re: Big screw up needs correction

              Yes, just cantilever it out on the hearth slab.

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