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Hi All,
Looking for advice from the oven sages. I put three inches of ceramic fiber blanket over the dome, metal lath, then 3 layers of perlcrete. The middle layer had glass fibers mixed in. I wet cured the oven for a good amount of time. 4 days after first coat, then 12 days after second coat, and then 2 more weeks after the final coat. When I took the burlap off there were no cracks that I could see in the dome. I tried to be a little gingerly with drying it out - I still kept it covered with a tarp - but it's been very hot here this week. 24 hours after I stopped the wet cure I saw a crack form. Over the next 2-3 days it progressed. But it looks like it has stopped getting any bigger. Picture is attached. I believe that the crack goes through all three layers. I guess I should have dried it out slower.
My question is what do I do next? I'm planning on tiling the whole dome with small penny rounds. I was planning on waterproofing the dome with Ardex 8+9, then thinset, tile, grout. I have read other threads in this amazing forum about allowing the insulation layer to release moisture / steam and already have a path for that going into my flue.
Is there something I should do about the crack now, or just proceed with the Ardex 8+9 and do what I was planning? I'm assuming putting stucco over the crack will do little to help. Is there a risk of steam coming through this crack and somehow messing up the tile down the line? Any thoughts or advice would be greatly appreciated.
Thank you so much.
Looking for advice from the oven sages. I put three inches of ceramic fiber blanket over the dome, metal lath, then 3 layers of perlcrete. The middle layer had glass fibers mixed in. I wet cured the oven for a good amount of time. 4 days after first coat, then 12 days after second coat, and then 2 more weeks after the final coat. When I took the burlap off there were no cracks that I could see in the dome. I tried to be a little gingerly with drying it out - I still kept it covered with a tarp - but it's been very hot here this week. 24 hours after I stopped the wet cure I saw a crack form. Over the next 2-3 days it progressed. But it looks like it has stopped getting any bigger. Picture is attached. I believe that the crack goes through all three layers. I guess I should have dried it out slower.
My question is what do I do next? I'm planning on tiling the whole dome with small penny rounds. I was planning on waterproofing the dome with Ardex 8+9, then thinset, tile, grout. I have read other threads in this amazing forum about allowing the insulation layer to release moisture / steam and already have a path for that going into my flue.
Is there something I should do about the crack now, or just proceed with the Ardex 8+9 and do what I was planning? I'm assuming putting stucco over the crack will do little to help. Is there a risk of steam coming through this crack and somehow messing up the tile down the line? Any thoughts or advice would be greatly appreciated.
Thank you so much.