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42" In South GA

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  • edonovan
    replied
    I think I am going to skip the Foamglas and just go two layers of CalSi....I know 2-3 weep holes is good at 3/4"? Should they be on the perimeter of the "oven floor diameter" or the perimeter of the CalSi? Also, any size tile or smaller work better?

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  • Baza
    replied
    Nice set up! Really amazing cooking space!
    I put tiles down and just one layer of Cal Si -- in hindsight I would have done two - just to increase the thermal layer for heat retention for long cooks
    (that said, I think it will be fine as people I've followed did the same level of floor insulation and are cooking up a storm)

    The rest - as Utah says - is up to you!

    Have fun mate! It's a great experience!
    Barry

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  • Neil.B
    replied
    I have a simular roof but made out of fibreglass sheets, I haven't worked it out either.
    I think the chimney will act like a dam if going through the grooves. I was thinking about changing to a flat roof section just before the chimney to allow easy water flow.

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  • UtahBeehiver
    replied
    FoamGlas will keep water from wicking up from the hearth since it will not absorb water. You just have to compare cost either one is a good alternative. Also a good budget alternative is 5 to 1 p or vcrete but you have to double thickness to be equivalent to CaSi or CaSi/FoamGlas. Sometimes FoamGlas is hard to find since it seems it is now produced in Europe, it use to be made in the USA.

    PS the new ThermoGold 1200 (formally Thermogold 12) CaSi board is supposedly water resistant.

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  • edonovan
    replied
    Utah...is one better than the other?..obviously tile is cheaper, but will the FoamGlas really help with moisture and rain that gets on the base.? and if I went with the tile should I go 4" of Calsil?

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  • UtahBeehiver
    replied
    Not sure you really need to do tiles if you have a FoamGlas layer since this material is nonhydrophobic (won't absorb water). Typically tiles are used to raise CaSi off the hearth floor since this material is really water absorbent.

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  • edonovan
    replied
    Thanks...the roof and chimney is definitely a point that scares me a bit...I am pretty sure I will avoid my beams, and then cut through the tin roof and seal it up real good.

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  • Neil.B
    replied
    Nice setup. Good luck.
    How are you planning on going through the roof?

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  • edonovan
    started a topic 42" In South GA

    42" In South GA

    Hey FB fam!
    Getting planning done and sourcing supplies for this project. I posted some picture under a different thread, but this seems to be the correct sub for a full build and to get attention for ALL the questions I may have.
    First one being about the sideways rainstorms we get here. Just going through my checklist...1) weepholes >tile> foamglas> Cal Sil > Oven floor?? That sound right?
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