Visitors Tour Inflated Airform Membrane

March 5, 2002—Visitors see inside the inflated structure for the first time. Work will continue inside with polyurethane foam applied to the interior surface of the stem-wall and inflated membrane, creating a seamless insulation envelope for the whole structure. Rebar will be attached to the foam and shotcrete applied in layers until the shell is complete and the fans may be turned off.