I`m a long time lurker finally allowed by SWMBO to start build on a 42" and hope to use little or no concrete or block. Here is the plan with numbered questions--steel frame of 2x3x3/8 tubular welded steel and fabricated vent (have a welding shop!). Planned a deck 7' deep and 6' wide and cut the steel before deciding it looks bigger than need be since I hope to go high tech and steel all the way to the finish coat. The deck will have 5 cross pieces about 18" apart covered with not-too-heavy plate upon which 1 or two layers of FB board or equivilent will rest and dome will be constructed, covered with 2 or more layers of FB blanket before stucco coat. Q`s1-4: How much can I shrink the deck(5'x6' or even smaller?)? Do the boards need to be glued/fastened to the steel deck(and if so, how)?Will one 2" layer of board be enough or do I need 2? Knowing the insulation mantra of this site, do folks think I need more than two blanket layers for this igloo oven (remember no concrete/vermiculite). I very much would like to buy from FB if even arguably comparable in price as I am HUGELY indebted to James and this forum. I willl enquire directly when my specs are finalized based on your input.Q5: I`m guessing that re-frax will be uneconomical to ship-if so will dry mix HeatStop work for brick work and cladding?More questions to follow if I can figure out how. many thanks
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