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Are you going to add vermiculite/portland over the blanket? That is what I did so my stucco (2 applications) probably ended up around an inch thick. If you are just going to cover the blanket with wire, then stucco, one inch would probably work just as well.
Thanks Les, you're an American hero. I'm going to do blanket and chicken wire. I got the full 100 sq ft that the plans reccomended. It may be a bit more expensive, but I'm hoping it pays off in the end... any ideas on curing time/time before use?
Thats a tough one. I would think that after the insulation, you are pretty much good to go. The temps are going to be way less than what the bricks see. I recommend using an acrylic - the stuff is bullet proof. And if it's only an inch thick - it should set pretty fast. Someone here must have been down this road, hopefully they will give some input as well.
Hey Amber, I think I'd put at least a little bit of vermicrete over the chicken wire before stuccoing. It's hard to get the stucco to behave on chicken wire directly over blanket. Too flexible. The vermicrete has a different texture when you're applying it and if you put it on in layers, bottom to top, it's more easily applied. Once it's dried, you can stucco away with no trouble. I have close to 4 inches (I sort of went by my hand's width) on mine, even with 2 layers of blanket. Insulation overkill, but that's good by me!
To get your chicken wire to conform better to your oven shape, use needle nose pliers to twist it in the places where it's buckling up. That tightened mine right up!