After the first four inches of concrete vermiculite mix, a fiberglass heart blanket from the kit is placed on the dome. I also added a layer of stucco mesh to help with holding the next layer of concrete and to help even the heat around the dome. A rebar frame is bent to fit over the dome and to have two arms that will be used to secure the chimney. The chimney tube was then surrounded by a rebar net. It was later surrounded by a cardboard column pouring tube.
