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Oven Insulation - Forno Bravo Forum: The Wood-Fired Oven Community



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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Oven Insulation

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  • Oven Insulation

    I just completed insulating my oven, but I'm so sure I did it correctly. I mixed 10 parts of vermiculite to 1 part portland cement and 3 parts of water. I also place three layers of heavy duty aluminum foil over the bricks and then proceeded to put wire mesh over the foil then the insulation. From what I see of some of the mixture that fell on the ground and dryed it's very loose and I'm afraid when I take the forms away it will crumble. did I do it right? will it crumble should I stucco it? Help!

  • #2
    Re: Oven Insulation

    It should harden up sufficiently for you to stucco over it.
    Kindled with zeal and fired with passion.


    • #3
      Re: Oven Insulation

      hi David,
      how long do I need to wait before I can remove the forms around it


      • #4
        Re: Oven Insulation

        I don't use forms, but rather just press the mixture in place and tap the outer surface with the flat of a trowel. If you've used formwork I hope you oiled the face of the forms, otherwise I think it will stick. 24 Hrs should be sufficient for it to harden enough. Making the mixture stronger by adding more cement is a mistake in that you reduce the insulation efficiency. You want it just strong enough to stand up on its own and be firm enough to take the stucco coat. A 10:1 mix seems about right.
        Kindled with zeal and fired with passion.


        • #5
          Re: Oven Insulation

          Thanks David for the quick response. I didn't oil the form.
          I built a barrel type oven. I may use stucco or I might just
          Brick the walls and put a roof over it