(M) The Forno Bravo Step by Step directions advise using "Quickcrete Crack Resistant Concrete" as the top thermal layer in the Insulating Hearth. Locally that brand is not stocked, however I can buy concrete with fiberglass fibers included. The Mfg. is "Ross Island" and I believe they call it fiber reinforced. Is this essentially the same product? ____
(M) Please confirm that "crack resistant concrete" (rock aggragate included) is indeed what is called for, (rather than crack resistant mortar). ____
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(M) For that Insulating Hearth, the first layer recommendation is for either Vermiculite or Perlite. Locally, the Vermiculite is marginally more expensive but not enough to disuade me from using it over the Perlite if there is any insulating, or adhesive advantage of using it.
(M) If you know of the relative insulating properties of both, would you please make a recommendation? ____
Thanks,
Ciao,
Marcel
(M) Please confirm that "crack resistant concrete" (rock aggragate included) is indeed what is called for, (rather than crack resistant mortar). ____
================================================== =====
(M) For that Insulating Hearth, the first layer recommendation is for either Vermiculite or Perlite. Locally, the Vermiculite is marginally more expensive but not enough to disuade me from using it over the Perlite if there is any insulating, or adhesive advantage of using it.
(M) If you know of the relative insulating properties of both, would you please make a recommendation? ____
Thanks,
Ciao,
Marcel
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