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Oven Floor - 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:
- 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.

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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Oven Floor

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  • Oven Floor

    Hi everyone

    I'm building a 42" FB Pompei oven and I built my foundation and an 8" vermiculite insulating slab just before winter or last year. I covered it all up for the winter and now I'm set to lay out the fire bricks for the oven floor but I can't seem to find fire clay in Montreal Canada. Can anyone recommend a reputable vendor on line that I can order some? Actually is it really necessary to use the fireclay paste between the vermiculite slab and the fire bricks?

    I also purchased the FB Board thinking that I might use the FB Board over the vermiculite slab. But because I went 8" thick on the vermiculite slab I'm wondering if perhaps I don't need to use the FB Board at all now. Is this ok? And if I do decide to use the FB Board over the vermiculite, how would I get the fire bricks to stick to the FB Board? It's very fibrous.

    I also have another question concerning the FB Mortar. I made a small batch of it to see what it's like to work with and was curious to know if it's easy to work with? How is it best to apply the mortar to the bricks when starting on the dome? Is it better to use a troul for cement or is it better to wear gloves and just cram the mortar into the spaces?

    Any help would be greatly appreciated.



  • #2
    Re: Oven Floor

    If you already have your bricks, cut them to shape and use the grog from your tray as fire clay. Screen out the big bits, and mix it with sand.

    No one who is cutting bricks should ever bother buying fire clay. You'll be throwing it out by the bucket load.

    You probably don't need the FB board given you have 8" of vermiculite, but if you have it and can't return, I say use it.

    As for "sticking" - the fire clay/sand layer is for leveling the bricks out - doesn't provide any adhesion. The weight of the bricks and then the oven on top of/around them is sufficient to keep everything in place

    On the mortar, I recommend you go to youtube and watch a few videos on how to lay bricks. Yes you use a trowel, but there's some technique that is useful to know.
    Last edited by deejayoh; 06-23-2014, 08:36 AM.
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    • #3
      Re: Oven Floor

      Hi nick I used dry grog (ground fire brick ) and a notched trowel for my floor worked great if that is easier to source. I've read a lot of threads on here and would defiantly go for the board under the floor look up cal sil (calcium silicate board ) that might be cheaper summat stuff just no where near as hazardous I've used 4 inch of the stuff on my floor as for the mortar I used grog again and fondue cement but it works the same just lay the mortar out on the last laid brick course in a wedge format and butter up the face edge of the brick to be laid just as a brick layer would do hope this helps
      link to my effort http://www.fornobravo.com/forum/f8/7...art-20707.html

      "95% reading this forum 5% building"