I have six bags of refrax to do the dome for a 42" oven, the arch and entry way. I fear I will run short so I was thinking of using the refrax on the first 6 inches or so into the landing and then switching to regular mortar. Anyone see a problem with this (my first attempt at bricklaying). And or any alternate tips for stretching the refrax or is six plenty?
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Using regular mortar on entry way