04-16-2011, 07:20 PM
You can also lay out your rebar and wire into the dome shape, then use zip ties and blue tarps mounted under the "frame" at close intervals as a form. Start the covering of the rebar dome and make your way from bottom to top. All of the openings would obviously be framed in the rebar dome frame. There is no reason you need a thickness of more than 3 inchs in concrete, shotcrete or stucco. Always another way to skin a pig...