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Insulating Casa90 Dome - Forno Bravo Forum: The Wood-Fired Oven Community

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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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Dome Installation Video - Casa / Premio / Modena

Hello,

For many of you who bought a modular oven, you may have asked how we put the domes together when we build them. For those of you considering one of our ovens, we shot a video to make your install easier.

Check it out on our You Tube Channel.

https://www.youtube.com/watch?v=-7q7...jSniYogfUra06Q

If the link doesn't work, simply go to You Tube and type Forno Bravo Channel. The video title is How to Set your Forno Bravo Oven Dome Pieces.

Thanks for participating in our Forum. We will have more video content available soon.
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Insulating Casa90 Dome

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  • Insulating Casa90 Dome

    I'm going to be installing a Casa 90 very soon and I'm a little confused about the process of covering the dome. The instructions that FB supplies say nothing about applying a layer of insulating concrete between the insulating blanket and the stucco however I have read many posts here that talk about that very thing. Is it necessary to add that additional layer. I live in North Texas and we do have cold snaps but it's not the frozen tundra.

    Thanks
    Phil

  • #2
    Re: Insulating Casa90 Dome

    Hi guys,

    James here. There are some common misunderstandings about oven mass and insulation thickness.

    It is true that a well insulated oven retains heat better than a poorly insulated oven -- because a poorly insulated oven loses heat through the insulation to the outer world. But all of the Forno Bravo ovens are well insulated, so adding more insulation to an oven with the mass of the Giardino would be overkill. It really would add very, very little benefit. As a general rule, ceramic insulation is roughly twice as efficient as loose vermiculite insulation. So if you calculate that in the past many ovens were insulated with 4" of vermiculite, you can see that the 3" of ceramic insulation that comes with the Giardino does a much better job of insulating the oven in less space.

    The question of oven mass also comes up. In general, the heavier/thicker the dome, the longer the oven takes to heat up and the longer it retains heat (although the quality of the refractory also helps with heat up time).


    I hope this helps.

    James

    Comment


    • #3
      Re: Insulating Casa90 Dome

      Thanks James

      Now to another issue. Did the stucco experts here ever come up with a consensus on:
      1. Best brand/formula to use
      2. Best way to apply color (paint/stain etc.)
      3. Waterproofing

      Comment


      • #4
        Re: Insulating Casa90 Dome

        Hello Phil,

        I bought a bunch of TXI spec mix scratch & brown, as they call it. It's a preblended ready to use product available in 80 LB bags. I'm going to start with it this weekend, and I'll let you know. Got it at GARTEX on plano road.

        Here's a link to their tech sheets.

        SPEC MIX Products | TXI :: Innovating Standards

        I'm not as concerned with waterproofing because I have a house enclosure and I'm only using it on the walls, but I intend to finish it with an old-school whitewash, but I'm not sure that's appropriate for an igloo final finish.

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        • #5
          Re: Insulating Casa90 Dome

          I don't quite understand your response, James. I'm building a Giardino 70 (igloo style), and my instructions say to apply a 1/2-3/4" layer of insulating concrete before applying a 1/4" layer of stucco. Phil seems to be asking about what to cover an igloo with (on top of the insulation blanket)--are you saying to just use "regular" 2-coat stucco and skip the insulating concrete (AKA vermicrete)?

          Thanks,

          Jamie

          Comment


          • #6
            Re: Insulating Casa90 Dome

            Apart from insulating the vermicrete will help you get a nice even hemispherical form because overlaps and folds in the ceramic blanket leave a less than ideal uneven surface to apply the stucco to. Suggest you contact FB directly if you don't understand their instructions. forum members opinions may differ from those of the manufacturer.
            Kindled with zeal and fired with passion.

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