clay oven project
I am in need of some advice/input regarding my finish layer. (I just joined this site but I have been lurking for a while. It has been a great resource for bread and oven building.)
So here is my question; would it be ok to put burlap over the insulating layer, then apply the final finish coating?(it will be sand/clay/wheat paste/fine fibers) I ask because the insulating coat is perlite, clay slip and natural rope fiber, which I have lightly textured to accept the next layer. It looks dry, and has developed some hairline cracks on the dome. I was hoping that the burlap would provide a space that may keep the cracks from extending to the finish layer, add an air space for add'l insulation and I think it may also help the last coat adhere? Can anyone see any big flaws in my idea that I am missing?
Thanks in advance,