 Re: cure questions
Wayne,
I'd keep it dry for at least two weeks before parging. The parge coat really won't be completely cured for 28 days. After that, you could go ahead with your mosaic approach, but you'd have to wait another 28 days before you could seal it (like mortars, etc., the sealant can't be allowed to freeze; otherwise it will turn white). To be on the safe side, I'd expose it to the elements only after it has been sealed. I'd just be patient about the covering; maybe move it when you want to bake, and put it back in place when the oven is not in use.
Jim
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