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Vermiculite or Perlite - Forno Bravo Forum: The Wood-Fired Oven Community

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Vermiculite or Perlite

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  • Vermiculite or Perlite

    Im almost ready for insulating layer. What should I use vermiculite or perlite. Someone said that perlite has more insulating value. Is that true? I thought I saw that perlite is cheaper than vermiculite at HD.
    Thanks
    Mike

  • #2
    Re: Vermiculite or Perlite

    I used half and half. I found it more workable than the straight vermiculite.

    1 part cement to 6 parts vermiculite and 6 parts perlite. Just enough water to make it workable. Mix the water and cement separately then add to the vermiculite / perlite very gently to avoid "breaking down" the particles.

    Make sure you get the coarse perlite.

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    • #3
      Re: Vermiculite or Perlite

      I couldn't find vermiculite so I used perlite. It was easy to mix with cement and worked well for insulation. It insulates my oven extremely well.
      My WFO project: http://picasaweb.google.com/stevprin/WFOSmallPhotos#

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